diff --git a/gensim/_matutils.c b/gensim/_matutils.c
index 90afbdcd72..384881f47f 100644
--- a/gensim/_matutils.c
+++ b/gensim/_matutils.c
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.28.3 */
+/* Generated by Cython 0.28.4 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,7 +7,7 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_28_3"
+#define CYTHON_ABI "0_28_4"
 #define CYTHON_FUTURE_DIVISION 1
 #include <stddef.h>
 #ifndef offsetof
@@ -24968,7 +24968,7 @@ static CYTHON_INLINE int __Pyx_dict_iter_next(
 /* SaveResetException */
         #if CYTHON_FAST_THREAD_STATE
 static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     *type = tstate->exc_state.exc_type;
     *value = tstate->exc_state.exc_value;
     *tb = tstate->exc_state.exc_traceback;
@@ -24983,7 +24983,7 @@ static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject *
 }
 static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
     PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -25067,7 +25067,7 @@ static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
     *value = local_value;
     *tb = local_tb;
 #if CYTHON_FAST_THREAD_STATE
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -25368,7 +25368,7 @@ static CYTHON_INLINE PyObject *__Pyx_GetAttr3(PyObject *o, PyObject *n, PyObject
           #if CYTHON_FAST_THREAD_STATE
 static CYTHON_INLINE void __Pyx__ExceptionSwap(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
     PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -25519,14 +25519,42 @@ static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err,
     return res;
 }
 #endif
+static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    assert(PyExceptionClass_Check(exc_type));
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        PyObject *t = PyTuple_GET_ITEM(tuple, i);
+        #if PY_MAJOR_VERSION < 3
+        if (likely(exc_type == t)) return 1;
+        #endif
+        if (likely(PyExceptionClass_Check(t))) {
+            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
+        } else {
+        }
+    }
+    return 0;
+}
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
     if (likely(err == exc_type)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
-        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        if (likely(PyExceptionClass_Check(exc_type))) {
+            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        } else if (likely(PyTuple_Check(exc_type))) {
+            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
+        } else {
+        }
     }
     return PyErr_GivenExceptionMatches(err, exc_type);
 }
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
+    assert(PyExceptionClass_Check(exc_type1));
+    assert(PyExceptionClass_Check(exc_type2));
     if (likely(err == exc_type1 || err == exc_type2)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
         return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
diff --git a/gensim/corpora/_mmreader.c b/gensim/corpora/_mmreader.c
index 2adbf9d95d..5f06f55310 100644
--- a/gensim/corpora/_mmreader.c
+++ b/gensim/corpora/_mmreader.c
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.28.3 */
+/* Generated by Cython 0.28.4 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,7 +7,7 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_28_3"
+#define CYTHON_ABI "0_28_4"
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -7865,7 +7865,7 @@ static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject
 /* SaveResetException */
       #if CYTHON_FAST_THREAD_STATE
 static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     *type = tstate->exc_state.exc_type;
     *value = tstate->exc_state.exc_value;
     *tb = tstate->exc_state.exc_traceback;
@@ -7880,7 +7880,7 @@ static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject *
 }
 static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
     PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -8146,7 +8146,7 @@ static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
     *value = local_value;
     *tb = local_tb;
 #if CYTHON_FAST_THREAD_STATE
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -9524,14 +9524,42 @@ static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err,
     return res;
 }
 #endif
+static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    assert(PyExceptionClass_Check(exc_type));
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        PyObject *t = PyTuple_GET_ITEM(tuple, i);
+        #if PY_MAJOR_VERSION < 3
+        if (likely(exc_type == t)) return 1;
+        #endif
+        if (likely(PyExceptionClass_Check(t))) {
+            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
+        } else {
+        }
+    }
+    return 0;
+}
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
     if (likely(err == exc_type)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
-        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        if (likely(PyExceptionClass_Check(exc_type))) {
+            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        } else if (likely(PyTuple_Check(exc_type))) {
+            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
+        } else {
+        }
     }
     return PyErr_GivenExceptionMatches(err, exc_type);
 }
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
+    assert(PyExceptionClass_Check(exc_type1));
+    assert(PyExceptionClass_Check(exc_type2));
     if (likely(err == exc_type1 || err == exc_type2)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
         return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
@@ -9583,7 +9611,7 @@ static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObj
         #if CYTHON_FAST_THREAD_STATE
 static CYTHON_INLINE void __Pyx__ExceptionSwap(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
     PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
diff --git a/gensim/models/_utils_any2vec.c b/gensim/models/_utils_any2vec.c
index 2fd18bbbc7..dfaf7e8125 100644
--- a/gensim/models/_utils_any2vec.c
+++ b/gensim/models/_utils_any2vec.c
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.28.3 */
+/* Generated by Cython 0.28.4 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,7 +7,7 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_28_3"
+#define CYTHON_ABI "0_28_4"
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -3405,14 +3405,42 @@ static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err,
     return res;
 }
 #endif
+static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    assert(PyExceptionClass_Check(exc_type));
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        PyObject *t = PyTuple_GET_ITEM(tuple, i);
+        #if PY_MAJOR_VERSION < 3
+        if (likely(exc_type == t)) return 1;
+        #endif
+        if (likely(PyExceptionClass_Check(t))) {
+            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
+        } else {
+        }
+    }
+    return 0;
+}
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
     if (likely(err == exc_type)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
-        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        if (likely(PyExceptionClass_Check(exc_type))) {
+            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        } else if (likely(PyTuple_Check(exc_type))) {
+            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
+        } else {
+        }
     }
     return PyErr_GivenExceptionMatches(err, exc_type);
 }
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
+    assert(PyExceptionClass_Check(exc_type1));
+    assert(PyExceptionClass_Check(exc_type2));
     if (likely(err == exc_type1 || err == exc_type2)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
         return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
diff --git a/gensim/models/doc2vec_corpusfile.cpp b/gensim/models/doc2vec_corpusfile.cpp
index ad7d0c9e07..360b8d1db1 100644
--- a/gensim/models/doc2vec_corpusfile.cpp
+++ b/gensim/models/doc2vec_corpusfile.cpp
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.28.2 */
+/* Generated by Cython 0.28.4 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,7 +7,7 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_28_2"
+#define CYTHON_ABI "0_28_4"
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -467,6 +467,7 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define PyString_Type                PyUnicode_Type
   #define PyString_Check               PyUnicode_Check
   #define PyString_CheckExact          PyUnicode_CheckExact
+  #define PyObject_Unicode             PyObject_Str
 #endif
 #if PY_MAJOR_VERSION >= 3
   #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
@@ -673,7 +674,7 @@ static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) {
 #define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
 #define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
 #define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
-#define __Pyx_PyBool_FromLong(b) ((b) ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False))
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b);
 static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
 static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x);
 #define __Pyx_PySequence_Tuple(obj)\
@@ -781,7 +782,7 @@ static CYTHON_INLINE void __Pyx_pretend_to_initialize(void* ptr) { (void)ptr; }
 static PyObject *__pyx_m = NULL;
 static PyObject *__pyx_d;
 static PyObject *__pyx_b;
-static PyObject *__pyx_cython_runtime;
+static PyObject *__pyx_cython_runtime = NULL;
 static PyObject *__pyx_empty_tuple;
 static PyObject *__pyx_empty_bytes;
 static PyObject *__pyx_empty_unicode;
@@ -832,7 +833,7 @@ static const char *__pyx_f[] = {
 #endif
 
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":730
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":730
  * # in Cython to enable them only on the right systems.
  * 
  * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
@@ -841,7 +842,7 @@ static const char *__pyx_f[] = {
  */
 typedef npy_int8 __pyx_t_5numpy_int8_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":731
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":731
  * 
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
@@ -850,7 +851,7 @@ typedef npy_int8 __pyx_t_5numpy_int8_t;
  */
 typedef npy_int16 __pyx_t_5numpy_int16_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":732
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":732
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
@@ -859,7 +860,7 @@ typedef npy_int16 __pyx_t_5numpy_int16_t;
  */
 typedef npy_int32 __pyx_t_5numpy_int32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":733
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":733
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t
  * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
@@ -868,7 +869,7 @@ typedef npy_int32 __pyx_t_5numpy_int32_t;
  */
 typedef npy_int64 __pyx_t_5numpy_int64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":737
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":737
  * #ctypedef npy_int128     int128_t
  * 
  * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
@@ -877,7 +878,7 @@ typedef npy_int64 __pyx_t_5numpy_int64_t;
  */
 typedef npy_uint8 __pyx_t_5numpy_uint8_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":738
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":738
  * 
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
@@ -886,7 +887,7 @@ typedef npy_uint8 __pyx_t_5numpy_uint8_t;
  */
 typedef npy_uint16 __pyx_t_5numpy_uint16_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":739
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":739
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
@@ -895,7 +896,7 @@ typedef npy_uint16 __pyx_t_5numpy_uint16_t;
  */
 typedef npy_uint32 __pyx_t_5numpy_uint32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":740
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":740
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t
  * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
@@ -904,7 +905,7 @@ typedef npy_uint32 __pyx_t_5numpy_uint32_t;
  */
 typedef npy_uint64 __pyx_t_5numpy_uint64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":744
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":744
  * #ctypedef npy_uint128    uint128_t
  * 
  * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
@@ -913,7 +914,7 @@ typedef npy_uint64 __pyx_t_5numpy_uint64_t;
  */
 typedef npy_float32 __pyx_t_5numpy_float32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":745
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":745
  * 
  * ctypedef npy_float32    float32_t
  * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
@@ -922,7 +923,7 @@ typedef npy_float32 __pyx_t_5numpy_float32_t;
  */
 typedef npy_float64 __pyx_t_5numpy_float64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":754
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":754
  * # The int types are mapped a bit surprising --
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
@@ -931,7 +932,7 @@ typedef npy_float64 __pyx_t_5numpy_float64_t;
  */
 typedef npy_long __pyx_t_5numpy_int_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":755
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":755
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
@@ -940,7 +941,7 @@ typedef npy_long __pyx_t_5numpy_int_t;
  */
 typedef npy_longlong __pyx_t_5numpy_long_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":756
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":756
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t
  * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
@@ -949,7 +950,7 @@ typedef npy_longlong __pyx_t_5numpy_long_t;
  */
 typedef npy_longlong __pyx_t_5numpy_longlong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":758
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":758
  * ctypedef npy_longlong   longlong_t
  * 
  * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
@@ -958,7 +959,7 @@ typedef npy_longlong __pyx_t_5numpy_longlong_t;
  */
 typedef npy_ulong __pyx_t_5numpy_uint_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":759
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":759
  * 
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
@@ -967,7 +968,7 @@ typedef npy_ulong __pyx_t_5numpy_uint_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":760
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":760
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t
  * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
@@ -976,7 +977,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":762
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":762
  * ctypedef npy_ulonglong  ulonglong_t
  * 
  * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
@@ -985,7 +986,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
  */
 typedef npy_intp __pyx_t_5numpy_intp_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":763
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":763
  * 
  * ctypedef npy_intp       intp_t
  * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
@@ -994,7 +995,7 @@ typedef npy_intp __pyx_t_5numpy_intp_t;
  */
 typedef npy_uintp __pyx_t_5numpy_uintp_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":765
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":765
  * ctypedef npy_uintp      uintp_t
  * 
  * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
@@ -1003,7 +1004,7 @@ typedef npy_uintp __pyx_t_5numpy_uintp_t;
  */
 typedef npy_double __pyx_t_5numpy_float_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":766
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":766
  * 
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
@@ -1012,7 +1013,7 @@ typedef npy_double __pyx_t_5numpy_float_t;
  */
 typedef npy_double __pyx_t_5numpy_double_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":767
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":767
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t
  * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
@@ -1067,7 +1068,7 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
 struct __pyx_obj_6gensim_6models_19word2vec_corpusfile_CythonLineSentence;
 struct __pyx_obj_6gensim_6models_19word2vec_corpusfile_CythonVocab;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":769
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":769
  * ctypedef npy_longdouble longdouble_t
  * 
  * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
@@ -1076,7 +1077,7 @@ struct __pyx_obj_6gensim_6models_19word2vec_corpusfile_CythonVocab;
  */
 typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":770
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":770
  * 
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
@@ -1085,7 +1086,7 @@ typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":771
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":771
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t
  * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
@@ -1094,7 +1095,7 @@ typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
  */
 typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":773
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":773
  * ctypedef npy_clongdouble clongdouble_t
  * 
  * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
@@ -1634,6 +1635,9 @@ static CYTHON_INLINE int __Pyx_ErrOccurredWithGIL(void); /* proto */
 /* CIntToPy.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
 
+/* None.proto */
+#include <new>
+
 /* RealImag.proto */
 #if CYTHON_CCOMPLEX
   #ifdef __cplusplus
@@ -1735,9 +1739,6 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);
 /* CIntToPy.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value);
 
-/* None.proto */
-#include <new>
-
 /* CIntFromPy.proto */
 static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
 
@@ -5786,7 +5787,7 @@ static PyObject *__pyx_pf_6gensim_6models_18doc2vec_corpusfile_4d2v_train_epoch_
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":215
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":215
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -5834,7 +5835,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_info->obj = Py_None; __Pyx_INCREF(Py_None);
   __Pyx_GIVEREF(__pyx_v_info->obj);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":222
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":222
  * 
  *             cdef int i, ndim
  *             cdef int endian_detector = 1             # <<<<<<<<<<<<<<
@@ -5843,7 +5844,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_endian_detector = 1;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":223
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":223
  *             cdef int i, ndim
  *             cdef int endian_detector = 1
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
@@ -5852,7 +5853,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":225
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":225
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
  * 
  *             ndim = PyArray_NDIM(self)             # <<<<<<<<<<<<<<
@@ -5861,7 +5862,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_ndim = PyArray_NDIM(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -5875,7 +5876,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L4_bool_binop_done;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":228
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":228
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_C_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -5886,7 +5887,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L4_bool_binop_done:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -5895,7 +5896,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":229
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":229
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_C_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
@@ -5908,7 +5909,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 229, __pyx_L1_error)
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -5917,7 +5918,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -5931,7 +5932,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L7_bool_binop_done;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":232
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":232
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_F_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -5942,7 +5943,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L7_bool_binop_done:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -5951,7 +5952,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":233
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":233
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_F_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
@@ -5964,7 +5965,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 233, __pyx_L1_error)
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -5973,7 +5974,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":235
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":235
  *                 raise ValueError(u"ndarray is not Fortran contiguous")
  * 
  *             info.buf = PyArray_DATA(self)             # <<<<<<<<<<<<<<
@@ -5982,7 +5983,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->buf = PyArray_DATA(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":236
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":236
  * 
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim             # <<<<<<<<<<<<<<
@@ -5991,7 +5992,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->ndim = __pyx_v_ndim;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":237
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":237
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -6001,7 +6002,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":240
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":240
  *                 # Allocate new buffer for strides and shape info.
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)             # <<<<<<<<<<<<<<
@@ -6010,7 +6011,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->strides = ((Py_ssize_t *)PyObject_Malloc((((sizeof(Py_ssize_t)) * 2) * ((size_t)__pyx_v_ndim))));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":241
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":241
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim             # <<<<<<<<<<<<<<
@@ -6019,7 +6020,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->shape = (__pyx_v_info->strides + __pyx_v_ndim);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":242
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":242
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -6031,7 +6032,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
       __pyx_v_i = __pyx_t_6;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":243
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":243
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]             # <<<<<<<<<<<<<<
@@ -6040,7 +6041,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
       (__pyx_v_info->strides[__pyx_v_i]) = (PyArray_STRIDES(__pyx_v_self)[__pyx_v_i]);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":244
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":244
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]
  *                     info.shape[i] = PyArray_DIMS(self)[i]             # <<<<<<<<<<<<<<
@@ -6050,7 +6051,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       (__pyx_v_info->shape[__pyx_v_i]) = (PyArray_DIMS(__pyx_v_self)[__pyx_v_i]);
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":237
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":237
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -6060,7 +6061,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L9;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":246
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":246
  *                     info.shape[i] = PyArray_DIMS(self)[i]
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)             # <<<<<<<<<<<<<<
@@ -6070,7 +6071,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->strides = ((Py_ssize_t *)PyArray_STRIDES(__pyx_v_self));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":247
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":247
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)             # <<<<<<<<<<<<<<
@@ -6081,7 +6082,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   }
   __pyx_L9:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":248
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":248
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL             # <<<<<<<<<<<<<<
@@ -6090,7 +6091,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->suboffsets = NULL;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":249
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":249
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)             # <<<<<<<<<<<<<<
@@ -6099,7 +6100,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->itemsize = PyArray_ITEMSIZE(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":250
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":250
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)
  *             info.readonly = not PyArray_ISWRITEABLE(self)             # <<<<<<<<<<<<<<
@@ -6108,7 +6109,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->readonly = (!(PyArray_ISWRITEABLE(__pyx_v_self) != 0));
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":253
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":253
  * 
  *             cdef int t
  *             cdef char* f = NULL             # <<<<<<<<<<<<<<
@@ -6117,7 +6118,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_f = NULL;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":254
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":254
  *             cdef int t
  *             cdef char* f = NULL
  *             cdef dtype descr = self.descr             # <<<<<<<<<<<<<<
@@ -6129,7 +6130,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_descr = ((PyArray_Descr *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":257
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":257
  *             cdef int offset
  * 
  *             info.obj = self             # <<<<<<<<<<<<<<
@@ -6142,7 +6143,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __Pyx_DECREF(__pyx_v_info->obj);
   __pyx_v_info->obj = ((PyObject *)__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":259
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":259
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -6152,7 +6153,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = ((!(PyDataType_HASFIELDS(__pyx_v_descr) != 0)) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":260
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":260
  * 
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num             # <<<<<<<<<<<<<<
@@ -6162,7 +6163,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_4 = __pyx_v_descr->type_num;
     __pyx_v_t = __pyx_t_4;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -6182,7 +6183,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     }
     __pyx_L15_next_or:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":262
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":262
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):             # <<<<<<<<<<<<<<
@@ -6199,7 +6200,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_1 = __pyx_t_2;
     __pyx_L14_bool_binop_done:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -6208,7 +6209,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     if (unlikely(__pyx_t_1)) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":263
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":263
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -6221,7 +6222,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 263, __pyx_L1_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -6230,7 +6231,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":264
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":264
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"             # <<<<<<<<<<<<<<
@@ -6242,7 +6243,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"b");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":265
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"             # <<<<<<<<<<<<<<
@@ -6253,7 +6254,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"B");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":266
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"             # <<<<<<<<<<<<<<
@@ -6264,7 +6265,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"h");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":267
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":267
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"             # <<<<<<<<<<<<<<
@@ -6275,7 +6276,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"H");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":268
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"             # <<<<<<<<<<<<<<
@@ -6286,7 +6287,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"i");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":269
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":269
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"             # <<<<<<<<<<<<<<
@@ -6297,7 +6298,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"I");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":270
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"             # <<<<<<<<<<<<<<
@@ -6308,7 +6309,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"l");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":271
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"             # <<<<<<<<<<<<<<
@@ -6319,7 +6320,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"L");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":272
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"             # <<<<<<<<<<<<<<
@@ -6330,7 +6331,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"q");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":273
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":273
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"             # <<<<<<<<<<<<<<
@@ -6341,7 +6342,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Q");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":274
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"             # <<<<<<<<<<<<<<
@@ -6352,7 +6353,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"f");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":275
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":275
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"             # <<<<<<<<<<<<<<
@@ -6363,7 +6364,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"d");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":276
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"             # <<<<<<<<<<<<<<
@@ -6374,7 +6375,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"g");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":277
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":277
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"             # <<<<<<<<<<<<<<
@@ -6385,7 +6386,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zf");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":278
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":278
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"             # <<<<<<<<<<<<<<
@@ -6396,7 +6397,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zd");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":279
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":279
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"             # <<<<<<<<<<<<<<
@@ -6407,7 +6408,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zg");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":280
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"
  *                 elif t == NPY_OBJECT:      f = "O"             # <<<<<<<<<<<<<<
@@ -6419,7 +6420,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       default:
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":282
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":282
  *                 elif t == NPY_OBJECT:      f = "O"
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -6440,7 +6441,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":283
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":283
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f             # <<<<<<<<<<<<<<
@@ -6449,7 +6450,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->format = __pyx_v_f;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":284
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":284
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f
  *                 return             # <<<<<<<<<<<<<<
@@ -6459,7 +6460,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_r = 0;
     goto __pyx_L0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":259
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":259
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -6468,7 +6469,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":286
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":286
  *                 return
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)             # <<<<<<<<<<<<<<
@@ -6478,7 +6479,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->format = ((char *)PyObject_Malloc(0xFF));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":287
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":287
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment             # <<<<<<<<<<<<<<
@@ -6487,7 +6488,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     (__pyx_v_info->format[0]) = '^';
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":288
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":288
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0             # <<<<<<<<<<<<<<
@@ -6496,7 +6497,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_offset = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":289
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":289
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0
  *                 f = _util_dtypestring(descr, info.format + 1,             # <<<<<<<<<<<<<<
@@ -6506,7 +6507,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_8 = __pyx_f_5numpy__util_dtypestring(__pyx_v_descr, (__pyx_v_info->format + 1), (__pyx_v_info->format + 0xFF), (&__pyx_v_offset)); if (unlikely(__pyx_t_8 == ((char *)NULL))) __PYX_ERR(1, 289, __pyx_L1_error)
     __pyx_v_f = __pyx_t_8;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":292
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":292
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@@ -6516,7 +6517,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     (__pyx_v_f[0]) = '\x00';
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":215
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":215
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@@ -6548,7 +6549,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":294
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":294
  *                 f[0] = c'\0' # Terminate format string
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  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
@@ -6572,7 +6573,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":295
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":295
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
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@@ -6582,7 +6583,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __pyx_t_1 = (PyArray_HASFIELDS(__pyx_v_self) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":296
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":296
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):
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@@ -6591,7 +6592,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->format);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":295
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":295
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
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@@ -6600,7 +6601,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
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   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":297
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
  *             if PyArray_HASFIELDS(self):
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@@ -6610,7 +6611,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
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   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":298
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":298
  *                 PyObject_Free(info.format)
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@@ -6619,7 +6620,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->strides);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":297
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)
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@@ -6628,7 +6629,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":294
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":294
  *                 f[0] = c'\0' # Terminate format string
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  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":775
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":775
  * ctypedef npy_cdouble     complex_t
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  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":776
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
  * 
  * cdef inline object PyArray_MultiIterNew1(a):
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@@ -6668,7 +6669,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":775
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":775
  * ctypedef npy_cdouble     complex_t
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  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
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   return __pyx_r;
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":778
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
  *     return PyArray_MultiIterNew(1, <void*>a)
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  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -6701,7 +6702,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":779
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":779
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):
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@@ -6715,7 +6716,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
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   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":778
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
  *     return PyArray_MultiIterNew(1, <void*>a)
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -6734,7 +6735,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":781
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":781
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -6748,7 +6749,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":782
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":782
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):
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@@ -6762,7 +6763,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":781
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":781
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
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  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -6781,7 +6782,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":784
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
@@ -6795,7 +6796,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":785
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):
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@@ -6809,7 +6810,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":784
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
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  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
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   return __pyx_r;
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":787
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":787
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  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":788
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  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":787
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":787
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  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":790
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":791
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":792
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":792
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":791
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":794
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":794
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":790
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":796
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":796
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":801
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   __pyx_v_endian_detector = 1;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":802
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
  *     cdef dtype child
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":805
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
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  *     for childname in descr.names:             # <<<<<<<<<<<<<<
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     __pyx_t_3 = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":806
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
  * 
  *     for childname in descr.names:
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@@ -7036,7 +7037,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     __pyx_t_3 = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":807
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":807
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     __pyx_t_4 = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":809
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
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@@ -7088,7 +7089,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":810
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":810
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")             # <<<<<<<<<<<<<<
@@ -7101,7 +7102,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 810, __pyx_L1_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":809
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
  *         child, new_offset = fields
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:             # <<<<<<<<<<<<<<
@@ -7110,7 +7111,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -7130,7 +7131,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     }
     __pyx_L8_next_or:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":813
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
  * 
  *         if ((child.byteorder == c'>' and little_endian) or
  *             (child.byteorder == c'<' and not little_endian)):             # <<<<<<<<<<<<<<
@@ -7147,7 +7148,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = __pyx_t_7;
     __pyx_L7_bool_binop_done:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -7156,7 +7157,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     if (unlikely(__pyx_t_6)) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":814
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":814
  *         if ((child.byteorder == c'>' and little_endian) or
  *             (child.byteorder == c'<' and not little_endian)):
  *             raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -7169,7 +7170,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 814, __pyx_L1_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -7178,7 +7179,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":824
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
  * 
  *         # Output padding bytes
  *         while offset[0] < new_offset:             # <<<<<<<<<<<<<<
@@ -7194,7 +7195,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       if (!__pyx_t_6) break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":825
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":825
  *         # Output padding bytes
  *         while offset[0] < new_offset:
  *             f[0] = 120 # "x"; pad byte             # <<<<<<<<<<<<<<
@@ -7203,7 +7204,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       (__pyx_v_f[0]) = 0x78;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":826
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":826
  *         while offset[0] < new_offset:
  *             f[0] = 120 # "x"; pad byte
  *             f += 1             # <<<<<<<<<<<<<<
@@ -7212,7 +7213,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":827
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
  *             f[0] = 120 # "x"; pad byte
  *             f += 1
  *             offset[0] += 1             # <<<<<<<<<<<<<<
@@ -7223,7 +7224,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + 1);
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":829
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":829
  *             offset[0] += 1
  * 
  *         offset[0] += child.itemsize             # <<<<<<<<<<<<<<
@@ -7233,7 +7234,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_8 = 0;
     (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + __pyx_v_child->elsize);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":831
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -7243,7 +7244,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = ((!(PyDataType_HASFIELDS(__pyx_v_child) != 0)) != 0);
     if (__pyx_t_6) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":832
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":832
  * 
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num             # <<<<<<<<<<<<<<
@@ -7255,7 +7256,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_XDECREF_SET(__pyx_v_t, __pyx_t_4);
       __pyx_t_4 = 0;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":833
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -7265,7 +7266,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __pyx_t_6 = (((__pyx_v_end - __pyx_v_f) < 5) != 0);
       if (unlikely(__pyx_t_6)) {
 
-        /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":834
+        /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
  *             t = child.type_num
  *             if end - f < 5:
  *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
@@ -7278,7 +7279,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         __PYX_ERR(1, 834, __pyx_L1_error)
 
-        /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":833
+        /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -7287,7 +7288,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":837
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
  * 
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"             # <<<<<<<<<<<<<<
@@ -7305,7 +7306,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":838
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":838
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"             # <<<<<<<<<<<<<<
@@ -7323,7 +7324,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":839
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":839
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"             # <<<<<<<<<<<<<<
@@ -7341,7 +7342,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":840
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":840
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"             # <<<<<<<<<<<<<<
@@ -7359,7 +7360,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":841
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":841
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"             # <<<<<<<<<<<<<<
@@ -7377,7 +7378,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":842
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"             # <<<<<<<<<<<<<<
@@ -7395,7 +7396,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":843
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":843
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"             # <<<<<<<<<<<<<<
@@ -7413,7 +7414,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":844
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":844
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"             # <<<<<<<<<<<<<<
@@ -7431,7 +7432,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":845
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":845
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"             # <<<<<<<<<<<<<<
@@ -7449,7 +7450,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":846
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":846
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"             # <<<<<<<<<<<<<<
@@ -7467,7 +7468,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":847
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":847
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"             # <<<<<<<<<<<<<<
@@ -7485,7 +7486,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":848
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":848
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"             # <<<<<<<<<<<<<<
@@ -7503,7 +7504,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":849
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":849
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"             # <<<<<<<<<<<<<<
@@ -7521,7 +7522,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":850
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":850
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf             # <<<<<<<<<<<<<<
@@ -7541,7 +7542,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":851
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd             # <<<<<<<<<<<<<<
@@ -7561,7 +7562,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":852
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":852
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg             # <<<<<<<<<<<<<<
@@ -7581,7 +7582,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":853
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":853
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"             # <<<<<<<<<<<<<<
@@ -7599,7 +7600,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":855
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -7618,7 +7619,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       }
       __pyx_L15:;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":856
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *             f += 1             # <<<<<<<<<<<<<<
@@ -7627,7 +7628,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":831
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -7637,7 +7638,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       goto __pyx_L13;
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":860
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":860
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":805
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":861
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":861
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":796
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":796
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@@ -7695,7 +7696,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":977
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":979
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":980
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":980
  *      cdef PyObject* baseptr
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":979
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":979
  * cdef inline void set_array_base(ndarray arr, object base):
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":982
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":982
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":983
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":983
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":984
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":984
  *          Py_INCREF(base) # important to do this before decref below!
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@@ -7770,7 +7771,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":985
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":985
  *          baseptr = <PyObject*>base
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":977
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":977
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  * 
  * cdef inline void set_array_base(ndarray arr, object base):             # <<<<<<<<<<<<<<
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":987
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":988
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":989
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":988
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":991
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":987
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":987
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  * cdef inline object get_array_base(ndarray arr):             # <<<<<<<<<<<<<<
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":996
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
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  * # Cython code.
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":998
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":998
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":997
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":999
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@@ -7939,7 +7940,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1000
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1000
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":996
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":996
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1002
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  * cdef inline int import_umath() except -1:             # <<<<<<<<<<<<<<
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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  * cdef inline int import_umath() except -1:
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1004
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1004
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       __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(1, 1004, __pyx_L3_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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  * cdef inline int import_umath() except -1:
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1005
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1005
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@@ -8068,7 +8069,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1006
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1006
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1002
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1002
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1008
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1008
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  * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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@@ -8159,7 +8160,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1010
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1010
  * cdef inline int import_ufunc() except -1:
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@@ -8168,7 +8169,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
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       __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(1, 1010, __pyx_L3_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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  * cdef inline int import_ufunc() except -1:
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1011
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1011
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1012
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1012
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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  * cdef inline int import_ufunc() except -1:
  *     try:             # <<<<<<<<<<<<<<
@@ -8225,7 +8226,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
     __pyx_L8_try_end:;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1008
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1008
  *         raise ImportError("numpy.core.umath failed to import")
  * 
  * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
@@ -8378,7 +8379,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_RefNannyDeclarations
   __Pyx_RefNannySetupContext("__Pyx_InitCachedConstants", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":229
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":229
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_C_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
@@ -8389,7 +8390,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple_);
   __Pyx_GIVEREF(__pyx_tuple_);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":233
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":233
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_F_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
@@ -8400,7 +8401,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__2);
   __Pyx_GIVEREF(__pyx_tuple__2);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":263
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":263
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -8411,7 +8412,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__3);
   __Pyx_GIVEREF(__pyx_tuple__3);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":810
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":810
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")             # <<<<<<<<<<<<<<
@@ -8422,7 +8423,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__4);
   __Pyx_GIVEREF(__pyx_tuple__4);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":814
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":814
  *         if ((child.byteorder == c'>' and little_endian) or
  *             (child.byteorder == c'<' and not little_endian)):
  *             raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -8433,7 +8434,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__5);
   __Pyx_GIVEREF(__pyx_tuple__5);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":834
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
  *             t = child.type_num
  *             if end - f < 5:
  *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
@@ -8444,7 +8445,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__6);
   __Pyx_GIVEREF(__pyx_tuple__6);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1000
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1000
  *         _import_array()
  *     except Exception:
  *         raise ImportError("numpy.core.multiarray failed to import")             # <<<<<<<<<<<<<<
@@ -8455,7 +8456,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__7);
   __Pyx_GIVEREF(__pyx_tuple__7);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1006
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1006
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -8466,7 +8467,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__8);
   __Pyx_GIVEREF(__pyx_tuple__8);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1012
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1012
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -8666,7 +8667,7 @@ static int __Pyx_modinit_function_import_code(void) {
 #ifndef CYTHON_SMALL_CODE
 #if defined(__clang__)
     #define CYTHON_SMALL_CODE
-#elif defined(__GNUC__)
+#elif defined(__GNUC__) && (!(defined(__cplusplus)) || (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 4)))
     #define CYTHON_SMALL_CODE __attribute__((optimize("Os")))
 #else
     #define CYTHON_SMALL_CODE
@@ -9026,7 +9027,7 @@ if (!__Pyx_RefNanny) {
   if (PyDict_SetItem(__pyx_d, __pyx_n_s_test, __pyx_t_7) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1008
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1008
  *         raise ImportError("numpy.core.umath failed to import")
  * 
  * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
@@ -9709,7 +9710,7 @@ static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
 /* SaveResetException */
 #if CYTHON_FAST_THREAD_STATE
 static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     *type = tstate->exc_state.exc_type;
     *value = tstate->exc_state.exc_value;
     *tb = tstate->exc_state.exc_traceback;
@@ -9724,7 +9725,7 @@ static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject *
 }
 static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
     PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -9808,7 +9809,7 @@ static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
     *value = local_value;
     *tb = local_tb;
 #if CYTHON_FAST_THREAD_STATE
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -9947,6 +9948,9 @@ static int __Pyx_CLineForTraceback(CYTHON_UNUSED PyThreadState *tstate, int c_li
 #if CYTHON_COMPILING_IN_CPYTHON
     PyObject **cython_runtime_dict;
 #endif
+    if (unlikely(!__pyx_cython_runtime)) {
+        return c_line;
+    }
     __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback);
 #if CYTHON_COMPILING_IN_CPYTHON
     cython_runtime_dict = _PyObject_GetDictPtr(__pyx_cython_runtime);
@@ -11013,14 +11017,42 @@ static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err,
     return res;
 }
 #endif
+static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    assert(PyExceptionClass_Check(exc_type));
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        PyObject *t = PyTuple_GET_ITEM(tuple, i);
+        #if PY_MAJOR_VERSION < 3
+        if (likely(exc_type == t)) return 1;
+        #endif
+        if (likely(PyExceptionClass_Check(t))) {
+            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
+        } else {
+        }
+    }
+    return 0;
+}
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
     if (likely(err == exc_type)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
-        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        if (likely(PyExceptionClass_Check(exc_type))) {
+            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        } else if (likely(PyTuple_Check(exc_type))) {
+            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
+        } else {
+        }
     }
     return PyErr_GivenExceptionMatches(err, exc_type);
 }
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
+    assert(PyExceptionClass_Check(exc_type1));
+    assert(PyExceptionClass_Check(exc_type2));
     if (likely(err == exc_type1 || err == exc_type2)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
         return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
@@ -11472,6 +11504,9 @@ static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
   Py_DECREF(x);
   return ival;
 }
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) {
+  return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False);
+}
 static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
     return PyInt_FromSize_t(ival);
 }
diff --git a/gensim/models/doc2vec_inner.c b/gensim/models/doc2vec_inner.c
index 6ab9beeb93..02239e4c14 100644
--- a/gensim/models/doc2vec_inner.c
+++ b/gensim/models/doc2vec_inner.c
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.28.2 */
+/* Generated by Cython 0.28.4 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,7 +7,7 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_28_2"
+#define CYTHON_ABI "0_28_4"
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -453,6 +453,7 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define PyString_Type                PyUnicode_Type
   #define PyString_Check               PyUnicode_Check
   #define PyString_CheckExact          PyUnicode_CheckExact
+  #define PyObject_Unicode             PyObject_Str
 #endif
 #if PY_MAJOR_VERSION >= 3
   #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
@@ -650,7 +651,7 @@ static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) {
 #define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
 #define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
 #define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
-#define __Pyx_PyBool_FromLong(b) ((b) ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False))
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b);
 static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
 static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x);
 #define __Pyx_PySequence_Tuple(obj)\
@@ -758,7 +759,7 @@ static CYTHON_INLINE void __Pyx_pretend_to_initialize(void* ptr) { (void)ptr; }
 static PyObject *__pyx_m = NULL;
 static PyObject *__pyx_d;
 static PyObject *__pyx_b;
-static PyObject *__pyx_cython_runtime;
+static PyObject *__pyx_cython_runtime = NULL;
 static PyObject *__pyx_empty_tuple;
 static PyObject *__pyx_empty_bytes;
 static PyObject *__pyx_empty_unicode;
@@ -808,7 +809,7 @@ static const char *__pyx_f[] = {
 #endif
 
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":730
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":730
  * # in Cython to enable them only on the right systems.
  * 
  * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
@@ -817,7 +818,7 @@ static const char *__pyx_f[] = {
  */
 typedef npy_int8 __pyx_t_5numpy_int8_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":731
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":731
  * 
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
@@ -826,7 +827,7 @@ typedef npy_int8 __pyx_t_5numpy_int8_t;
  */
 typedef npy_int16 __pyx_t_5numpy_int16_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":732
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":732
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
@@ -835,7 +836,7 @@ typedef npy_int16 __pyx_t_5numpy_int16_t;
  */
 typedef npy_int32 __pyx_t_5numpy_int32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":733
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":733
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t
  * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
@@ -844,7 +845,7 @@ typedef npy_int32 __pyx_t_5numpy_int32_t;
  */
 typedef npy_int64 __pyx_t_5numpy_int64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":737
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":737
  * #ctypedef npy_int128     int128_t
  * 
  * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
@@ -853,7 +854,7 @@ typedef npy_int64 __pyx_t_5numpy_int64_t;
  */
 typedef npy_uint8 __pyx_t_5numpy_uint8_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":738
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":738
  * 
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
@@ -862,7 +863,7 @@ typedef npy_uint8 __pyx_t_5numpy_uint8_t;
  */
 typedef npy_uint16 __pyx_t_5numpy_uint16_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":739
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":739
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
@@ -871,7 +872,7 @@ typedef npy_uint16 __pyx_t_5numpy_uint16_t;
  */
 typedef npy_uint32 __pyx_t_5numpy_uint32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":740
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":740
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t
  * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
@@ -880,7 +881,7 @@ typedef npy_uint32 __pyx_t_5numpy_uint32_t;
  */
 typedef npy_uint64 __pyx_t_5numpy_uint64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":744
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":744
  * #ctypedef npy_uint128    uint128_t
  * 
  * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
@@ -889,7 +890,7 @@ typedef npy_uint64 __pyx_t_5numpy_uint64_t;
  */
 typedef npy_float32 __pyx_t_5numpy_float32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":745
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":745
  * 
  * ctypedef npy_float32    float32_t
  * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
@@ -898,7 +899,7 @@ typedef npy_float32 __pyx_t_5numpy_float32_t;
  */
 typedef npy_float64 __pyx_t_5numpy_float64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":754
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":754
  * # The int types are mapped a bit surprising --
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
@@ -907,7 +908,7 @@ typedef npy_float64 __pyx_t_5numpy_float64_t;
  */
 typedef npy_long __pyx_t_5numpy_int_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":755
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":755
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
@@ -916,7 +917,7 @@ typedef npy_long __pyx_t_5numpy_int_t;
  */
 typedef npy_longlong __pyx_t_5numpy_long_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":756
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":756
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t
  * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
@@ -925,7 +926,7 @@ typedef npy_longlong __pyx_t_5numpy_long_t;
  */
 typedef npy_longlong __pyx_t_5numpy_longlong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":758
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":758
  * ctypedef npy_longlong   longlong_t
  * 
  * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
@@ -934,7 +935,7 @@ typedef npy_longlong __pyx_t_5numpy_longlong_t;
  */
 typedef npy_ulong __pyx_t_5numpy_uint_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":759
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":759
  * 
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
@@ -943,7 +944,7 @@ typedef npy_ulong __pyx_t_5numpy_uint_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":760
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":760
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t
  * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
@@ -952,7 +953,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":762
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":762
  * ctypedef npy_ulonglong  ulonglong_t
  * 
  * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
@@ -961,7 +962,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
  */
 typedef npy_intp __pyx_t_5numpy_intp_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":763
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":763
  * 
  * ctypedef npy_intp       intp_t
  * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
@@ -970,7 +971,7 @@ typedef npy_intp __pyx_t_5numpy_intp_t;
  */
 typedef npy_uintp __pyx_t_5numpy_uintp_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":765
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":765
  * ctypedef npy_uintp      uintp_t
  * 
  * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
@@ -979,7 +980,7 @@ typedef npy_uintp __pyx_t_5numpy_uintp_t;
  */
 typedef npy_double __pyx_t_5numpy_float_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":766
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":766
  * 
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
@@ -988,7 +989,7 @@ typedef npy_double __pyx_t_5numpy_float_t;
  */
 typedef npy_double __pyx_t_5numpy_double_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":767
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":767
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t
  * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
@@ -1032,7 +1033,7 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
 
 /*--- Type declarations ---*/
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":769
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":769
  * ctypedef npy_longdouble longdouble_t
  * 
  * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
@@ -1041,7 +1042,7 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
  */
 typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":770
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":770
  * 
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
@@ -1050,7 +1051,7 @@ typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":771
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":771
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t
  * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
@@ -1059,7 +1060,7 @@ typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
  */
 typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":773
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":773
  * ctypedef npy_clongdouble clongdouble_t
  * 
  * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
@@ -7753,7 +7754,7 @@ static PyObject *__pyx_pf_6gensim_6models_13doc2vec_inner_4train_document_dm_con
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":215
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":215
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -7801,7 +7802,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_info->obj = Py_None; __Pyx_INCREF(Py_None);
   __Pyx_GIVEREF(__pyx_v_info->obj);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":222
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":222
  * 
  *             cdef int i, ndim
  *             cdef int endian_detector = 1             # <<<<<<<<<<<<<<
@@ -7810,7 +7811,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_endian_detector = 1;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":223
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":223
  *             cdef int i, ndim
  *             cdef int endian_detector = 1
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
@@ -7819,7 +7820,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":225
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":225
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
  * 
  *             ndim = PyArray_NDIM(self)             # <<<<<<<<<<<<<<
@@ -7828,7 +7829,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_ndim = PyArray_NDIM(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -7842,7 +7843,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L4_bool_binop_done;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":228
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":228
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_C_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -7853,7 +7854,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L4_bool_binop_done:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -7862,7 +7863,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":229
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":229
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_C_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
@@ -7875,7 +7876,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 229, __pyx_L1_error)
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -7884,7 +7885,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -7898,7 +7899,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L7_bool_binop_done;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":232
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":232
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_F_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -7909,7 +7910,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L7_bool_binop_done:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -7918,7 +7919,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":233
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":233
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_F_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
@@ -7931,7 +7932,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 233, __pyx_L1_error)
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -7940,7 +7941,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":235
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":235
  *                 raise ValueError(u"ndarray is not Fortran contiguous")
  * 
  *             info.buf = PyArray_DATA(self)             # <<<<<<<<<<<<<<
@@ -7949,7 +7950,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->buf = PyArray_DATA(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":236
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":236
  * 
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim             # <<<<<<<<<<<<<<
@@ -7958,7 +7959,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->ndim = __pyx_v_ndim;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":237
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":237
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -7968,7 +7969,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":240
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":240
  *                 # Allocate new buffer for strides and shape info.
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)             # <<<<<<<<<<<<<<
@@ -7977,7 +7978,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->strides = ((Py_ssize_t *)PyObject_Malloc((((sizeof(Py_ssize_t)) * 2) * ((size_t)__pyx_v_ndim))));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":241
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":241
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim             # <<<<<<<<<<<<<<
@@ -7986,7 +7987,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->shape = (__pyx_v_info->strides + __pyx_v_ndim);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":242
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":242
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -7998,7 +7999,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
       __pyx_v_i = __pyx_t_6;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":243
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":243
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]             # <<<<<<<<<<<<<<
@@ -8007,7 +8008,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
       (__pyx_v_info->strides[__pyx_v_i]) = (PyArray_STRIDES(__pyx_v_self)[__pyx_v_i]);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":244
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":244
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]
  *                     info.shape[i] = PyArray_DIMS(self)[i]             # <<<<<<<<<<<<<<
@@ -8017,7 +8018,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       (__pyx_v_info->shape[__pyx_v_i]) = (PyArray_DIMS(__pyx_v_self)[__pyx_v_i]);
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":237
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":237
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -8027,7 +8028,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L9;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":246
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":246
  *                     info.shape[i] = PyArray_DIMS(self)[i]
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)             # <<<<<<<<<<<<<<
@@ -8037,7 +8038,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->strides = ((Py_ssize_t *)PyArray_STRIDES(__pyx_v_self));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":247
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":247
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)             # <<<<<<<<<<<<<<
@@ -8048,7 +8049,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   }
   __pyx_L9:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":248
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":248
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL             # <<<<<<<<<<<<<<
@@ -8057,7 +8058,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->suboffsets = NULL;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":249
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":249
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)             # <<<<<<<<<<<<<<
@@ -8066,7 +8067,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->itemsize = PyArray_ITEMSIZE(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":250
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":250
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)
  *             info.readonly = not PyArray_ISWRITEABLE(self)             # <<<<<<<<<<<<<<
@@ -8075,7 +8076,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->readonly = (!(PyArray_ISWRITEABLE(__pyx_v_self) != 0));
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":253
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":253
  * 
  *             cdef int t
  *             cdef char* f = NULL             # <<<<<<<<<<<<<<
@@ -8084,7 +8085,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_f = NULL;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":254
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":254
  *             cdef int t
  *             cdef char* f = NULL
  *             cdef dtype descr = self.descr             # <<<<<<<<<<<<<<
@@ -8096,7 +8097,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_descr = ((PyArray_Descr *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":257
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":257
  *             cdef int offset
  * 
  *             info.obj = self             # <<<<<<<<<<<<<<
@@ -8109,7 +8110,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __Pyx_DECREF(__pyx_v_info->obj);
   __pyx_v_info->obj = ((PyObject *)__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":259
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":259
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -8119,7 +8120,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = ((!(PyDataType_HASFIELDS(__pyx_v_descr) != 0)) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":260
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":260
  * 
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num             # <<<<<<<<<<<<<<
@@ -8129,7 +8130,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_4 = __pyx_v_descr->type_num;
     __pyx_v_t = __pyx_t_4;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -8149,7 +8150,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     }
     __pyx_L15_next_or:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":262
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":262
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):             # <<<<<<<<<<<<<<
@@ -8166,7 +8167,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_1 = __pyx_t_2;
     __pyx_L14_bool_binop_done:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -8175,7 +8176,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     if (unlikely(__pyx_t_1)) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":263
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":263
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -8188,7 +8189,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 263, __pyx_L1_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -8197,7 +8198,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":264
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":264
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"             # <<<<<<<<<<<<<<
@@ -8209,7 +8210,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"b");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":265
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"             # <<<<<<<<<<<<<<
@@ -8220,7 +8221,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"B");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":266
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"             # <<<<<<<<<<<<<<
@@ -8231,7 +8232,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"h");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":267
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":267
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"             # <<<<<<<<<<<<<<
@@ -8242,7 +8243,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"H");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":268
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"             # <<<<<<<<<<<<<<
@@ -8253,7 +8254,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"i");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":269
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":269
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"             # <<<<<<<<<<<<<<
@@ -8264,7 +8265,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"I");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":270
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"             # <<<<<<<<<<<<<<
@@ -8275,7 +8276,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"l");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":271
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"             # <<<<<<<<<<<<<<
@@ -8286,7 +8287,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"L");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":272
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"             # <<<<<<<<<<<<<<
@@ -8297,7 +8298,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"q");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":273
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":273
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"             # <<<<<<<<<<<<<<
@@ -8308,7 +8309,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Q");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":274
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"             # <<<<<<<<<<<<<<
@@ -8319,7 +8320,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"f");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":275
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":275
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"             # <<<<<<<<<<<<<<
@@ -8330,7 +8331,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"d");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":276
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"             # <<<<<<<<<<<<<<
@@ -8341,7 +8342,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"g");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":277
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":277
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"             # <<<<<<<<<<<<<<
@@ -8352,7 +8353,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zf");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":278
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":278
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"             # <<<<<<<<<<<<<<
@@ -8363,7 +8364,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zd");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":279
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":279
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"             # <<<<<<<<<<<<<<
@@ -8374,7 +8375,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zg");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":280
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"
  *                 elif t == NPY_OBJECT:      f = "O"             # <<<<<<<<<<<<<<
@@ -8386,7 +8387,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       default:
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":282
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":282
  *                 elif t == NPY_OBJECT:      f = "O"
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -8407,7 +8408,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":283
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":283
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f             # <<<<<<<<<<<<<<
@@ -8416,7 +8417,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->format = __pyx_v_f;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":284
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":284
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f
  *                 return             # <<<<<<<<<<<<<<
@@ -8426,7 +8427,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_r = 0;
     goto __pyx_L0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":259
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":259
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -8435,7 +8436,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":286
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":286
  *                 return
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)             # <<<<<<<<<<<<<<
@@ -8445,7 +8446,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->format = ((char *)PyObject_Malloc(0xFF));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":287
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":287
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment             # <<<<<<<<<<<<<<
@@ -8454,7 +8455,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     (__pyx_v_info->format[0]) = '^';
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":288
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":288
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0             # <<<<<<<<<<<<<<
@@ -8463,7 +8464,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_offset = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":289
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":289
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0
  *                 f = _util_dtypestring(descr, info.format + 1,             # <<<<<<<<<<<<<<
@@ -8473,7 +8474,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_8 = __pyx_f_5numpy__util_dtypestring(__pyx_v_descr, (__pyx_v_info->format + 1), (__pyx_v_info->format + 0xFF), (&__pyx_v_offset)); if (unlikely(__pyx_t_8 == ((char *)NULL))) __PYX_ERR(1, 289, __pyx_L1_error)
     __pyx_v_f = __pyx_t_8;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":292
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":292
  *                                       info.format + _buffer_format_string_len,
  *                                       &offset)
  *                 f[0] = c'\0' # Terminate format string             # <<<<<<<<<<<<<<
@@ -8483,7 +8484,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     (__pyx_v_f[0]) = '\x00';
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":215
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":215
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -8515,7 +8516,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":294
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":294
  *                 f[0] = c'\0' # Terminate format string
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
@@ -8539,7 +8540,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("__releasebuffer__", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":295
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":295
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
@@ -8549,7 +8550,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __pyx_t_1 = (PyArray_HASFIELDS(__pyx_v_self) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":296
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":296
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)             # <<<<<<<<<<<<<<
@@ -8558,7 +8559,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
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     PyObject_Free(__pyx_v_info->format);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":295
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":295
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
@@ -8567,7 +8568,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
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   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":297
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
  *             if PyArray_HASFIELDS(self):
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@@ -8577,7 +8578,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
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   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":298
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":298
  *                 PyObject_Free(info.format)
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  *                 PyObject_Free(info.strides)             # <<<<<<<<<<<<<<
@@ -8586,7 +8587,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->strides);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":297
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -8595,7 +8596,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
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   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":294
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":294
  *                 f[0] = c'\0' # Terminate format string
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  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":775
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":775
  * ctypedef npy_cdouble     complex_t
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  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
@@ -8621,7 +8622,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":776
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
  * 
  * cdef inline object PyArray_MultiIterNew1(a):
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@@ -8635,7 +8636,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":775
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":775
  * ctypedef npy_cdouble     complex_t
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  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
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   return __pyx_r;
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":778
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
  *     return PyArray_MultiIterNew(1, <void*>a)
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  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -8668,7 +8669,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":779
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  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):
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@@ -8682,7 +8683,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":778
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
  *     return PyArray_MultiIterNew(1, <void*>a)
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -8701,7 +8702,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":781
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":781
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -8715,7 +8716,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":782
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":782
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):
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@@ -8729,7 +8730,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   __pyx_t_1 = 0;
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":781
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":781
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
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  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -8748,7 +8749,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   return __pyx_r;
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":784
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
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  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
@@ -8762,7 +8763,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":785
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):
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@@ -8776,7 +8777,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
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   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":784
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
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  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
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   return __pyx_r;
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":787
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":787
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  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":788
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  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":787
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":787
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  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":790
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":791
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  * 
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":792
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":792
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":791
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":794
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":794
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":790
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":796
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":801
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":802
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":805
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":806
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
  * 
  *     for childname in descr.names:
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":807
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":807
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     __pyx_t_4 = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":809
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":810
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":810
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  *         if (end - f) - <int>(new_offset - offset[0]) < 15:
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":809
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
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     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
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  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":813
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
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  *         if ((child.byteorder == c'>' and little_endian) or
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@@ -9114,7 +9115,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = __pyx_t_7;
     __pyx_L7_bool_binop_done:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -9123,7 +9124,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     if (unlikely(__pyx_t_6)) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":814
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":814
  *         if ((child.byteorder == c'>' and little_endian) or
  *             (child.byteorder == c'<' and not little_endian)):
  *             raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -9136,7 +9137,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 814, __pyx_L1_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -9145,7 +9146,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":824
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
  * 
  *         # Output padding bytes
  *         while offset[0] < new_offset:             # <<<<<<<<<<<<<<
@@ -9161,7 +9162,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       if (!__pyx_t_6) break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":825
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":825
  *         # Output padding bytes
  *         while offset[0] < new_offset:
  *             f[0] = 120 # "x"; pad byte             # <<<<<<<<<<<<<<
@@ -9170,7 +9171,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       (__pyx_v_f[0]) = 0x78;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":826
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":826
  *         while offset[0] < new_offset:
  *             f[0] = 120 # "x"; pad byte
  *             f += 1             # <<<<<<<<<<<<<<
@@ -9179,7 +9180,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":827
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
  *             f[0] = 120 # "x"; pad byte
  *             f += 1
  *             offset[0] += 1             # <<<<<<<<<<<<<<
@@ -9190,7 +9191,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + 1);
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":829
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":829
  *             offset[0] += 1
  * 
  *         offset[0] += child.itemsize             # <<<<<<<<<<<<<<
@@ -9200,7 +9201,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_8 = 0;
     (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + __pyx_v_child->elsize);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":831
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -9210,7 +9211,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = ((!(PyDataType_HASFIELDS(__pyx_v_child) != 0)) != 0);
     if (__pyx_t_6) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":832
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":832
  * 
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num             # <<<<<<<<<<<<<<
@@ -9222,7 +9223,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_XDECREF_SET(__pyx_v_t, __pyx_t_4);
       __pyx_t_4 = 0;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":833
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -9232,7 +9233,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __pyx_t_6 = (((__pyx_v_end - __pyx_v_f) < 5) != 0);
       if (unlikely(__pyx_t_6)) {
 
-        /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":834
+        /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
  *             t = child.type_num
  *             if end - f < 5:
  *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
@@ -9245,7 +9246,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         __PYX_ERR(1, 834, __pyx_L1_error)
 
-        /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":833
+        /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -9254,7 +9255,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":837
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
  * 
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"             # <<<<<<<<<<<<<<
@@ -9272,7 +9273,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":838
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":838
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"             # <<<<<<<<<<<<<<
@@ -9290,7 +9291,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":839
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":839
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"             # <<<<<<<<<<<<<<
@@ -9308,7 +9309,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":840
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":840
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"             # <<<<<<<<<<<<<<
@@ -9326,7 +9327,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":841
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":841
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"             # <<<<<<<<<<<<<<
@@ -9344,7 +9345,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":842
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"             # <<<<<<<<<<<<<<
@@ -9362,7 +9363,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":843
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":843
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"             # <<<<<<<<<<<<<<
@@ -9380,7 +9381,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":844
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":844
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"             # <<<<<<<<<<<<<<
@@ -9398,7 +9399,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":845
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":845
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"             # <<<<<<<<<<<<<<
@@ -9416,7 +9417,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":846
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":846
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"             # <<<<<<<<<<<<<<
@@ -9434,7 +9435,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":847
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":847
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"             # <<<<<<<<<<<<<<
@@ -9452,7 +9453,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":848
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":848
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"             # <<<<<<<<<<<<<<
@@ -9470,7 +9471,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":849
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":849
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"             # <<<<<<<<<<<<<<
@@ -9488,7 +9489,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":850
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":850
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf             # <<<<<<<<<<<<<<
@@ -9508,7 +9509,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":851
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd             # <<<<<<<<<<<<<<
@@ -9528,7 +9529,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":852
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":852
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg             # <<<<<<<<<<<<<<
@@ -9548,7 +9549,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":853
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":853
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"             # <<<<<<<<<<<<<<
@@ -9566,7 +9567,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":855
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -9585,7 +9586,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       }
       __pyx_L15:;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":856
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *             f += 1             # <<<<<<<<<<<<<<
@@ -9594,7 +9595,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":831
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -9604,7 +9605,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       goto __pyx_L13;
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":860
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":860
  *             # Cython ignores struct boundary information ("T{...}"),
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)             # <<<<<<<<<<<<<<
@@ -9617,7 +9618,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     }
     __pyx_L13:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":805
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
  *     cdef tuple fields
  * 
  *     for childname in descr.names:             # <<<<<<<<<<<<<<
@@ -9627,7 +9628,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":861
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":861
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)
  *     return f             # <<<<<<<<<<<<<<
@@ -9637,7 +9638,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   __pyx_r = __pyx_v_f;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":796
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":796
  *         return ()
  * 
  * cdef inline char* _util_dtypestring(dtype descr, char* f, char* end, int* offset) except NULL:             # <<<<<<<<<<<<<<
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":977
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@@ -9677,7 +9678,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":979
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":980
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":980
  *      cdef PyObject* baseptr
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":979
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":979
  * cdef inline void set_array_base(ndarray arr, object base):
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@@ -9707,7 +9708,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":982
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":982
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@@ -9717,7 +9718,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":983
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":983
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@@ -9728,7 +9729,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":984
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":984
  *          Py_INCREF(base) # important to do this before decref below!
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@@ -9737,7 +9738,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":985
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":985
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":977
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":977
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  * cdef inline void set_array_base(ndarray arr, object base):             # <<<<<<<<<<<<<<
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":988
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":989
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":988
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":991
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":987
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":987
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  * cdef inline object get_array_base(ndarray arr):             # <<<<<<<<<<<<<<
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":996
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":996
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":998
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":998
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":999
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1000
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1002
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  * cdef inline int import_umath() except -1:             # <<<<<<<<<<<<<<
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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  * cdef inline int import_umath() except -1:
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1004
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1004
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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  * cdef inline int import_umath() except -1:
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1005
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1006
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1002
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  * cdef inline int import_umath() except -1:             # <<<<<<<<<<<<<<
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1010
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1010
  * cdef inline int import_ufunc() except -1:
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@@ -10135,7 +10136,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
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       __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(1, 1010, __pyx_L3_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1011
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1012
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1012
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1008
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":229
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":233
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":233
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@@ -10391,7 +10392,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__5);
   __Pyx_GIVEREF(__pyx_tuple__5);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":263
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":263
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -10402,7 +10403,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__6);
   __Pyx_GIVEREF(__pyx_tuple__6);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":810
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":810
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")             # <<<<<<<<<<<<<<
@@ -10413,7 +10414,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__7);
   __Pyx_GIVEREF(__pyx_tuple__7);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":814
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":814
  *         if ((child.byteorder == c'>' and little_endian) or
  *             (child.byteorder == c'<' and not little_endian)):
  *             raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -10424,7 +10425,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__8);
   __Pyx_GIVEREF(__pyx_tuple__8);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":834
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
  *             t = child.type_num
  *             if end - f < 5:
  *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
@@ -10435,7 +10436,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__9);
   __Pyx_GIVEREF(__pyx_tuple__9);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1000
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1000
  *         _import_array()
  *     except Exception:
  *         raise ImportError("numpy.core.multiarray failed to import")             # <<<<<<<<<<<<<<
@@ -10446,7 +10447,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__10);
   __Pyx_GIVEREF(__pyx_tuple__10);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1006
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1006
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -10457,7 +10458,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__11);
   __Pyx_GIVEREF(__pyx_tuple__11);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1012
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1012
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -10648,7 +10649,7 @@ static int __Pyx_modinit_function_import_code(void) {
 #ifndef CYTHON_SMALL_CODE
 #if defined(__clang__)
     #define CYTHON_SMALL_CODE
-#elif defined(__GNUC__)
+#elif defined(__GNUC__) && (!(defined(__cplusplus)) || (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 4)))
     #define CYTHON_SMALL_CODE __attribute__((optimize("Os")))
 #else
     #define CYTHON_SMALL_CODE
@@ -11029,7 +11030,7 @@ if (!__Pyx_RefNanny) {
   if (PyDict_SetItem(__pyx_d, __pyx_n_s_test, __pyx_t_7) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1008
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1008
  *         raise ImportError("numpy.core.umath failed to import")
  * 
  * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
@@ -11855,7 +11856,7 @@ static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObjec
 /* SaveResetException */
     #if CYTHON_FAST_THREAD_STATE
 static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     *type = tstate->exc_state.exc_type;
     *value = tstate->exc_state.exc_value;
     *tb = tstate->exc_state.exc_traceback;
@@ -11870,7 +11871,7 @@ static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject *
 }
 static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
     PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -11954,7 +11955,7 @@ static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
     *value = local_value;
     *tb = local_tb;
 #if CYTHON_FAST_THREAD_STATE
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -12073,6 +12074,9 @@ static int __Pyx_CLineForTraceback(CYTHON_UNUSED PyThreadState *tstate, int c_li
 #if CYTHON_COMPILING_IN_CPYTHON
     PyObject **cython_runtime_dict;
 #endif
+    if (unlikely(!__pyx_cython_runtime)) {
+        return c_line;
+    }
     __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback);
 #if CYTHON_COMPILING_IN_CPYTHON
     cython_runtime_dict = _PyObject_GetDictPtr(__pyx_cython_runtime);
@@ -13724,14 +13728,42 @@ static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err,
     return res;
 }
 #endif
+static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    assert(PyExceptionClass_Check(exc_type));
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        PyObject *t = PyTuple_GET_ITEM(tuple, i);
+        #if PY_MAJOR_VERSION < 3
+        if (likely(exc_type == t)) return 1;
+        #endif
+        if (likely(PyExceptionClass_Check(t))) {
+            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
+        } else {
+        }
+    }
+    return 0;
+}
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
     if (likely(err == exc_type)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
-        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        if (likely(PyExceptionClass_Check(exc_type))) {
+            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        } else if (likely(PyTuple_Check(exc_type))) {
+            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
+        } else {
+        }
     }
     return PyErr_GivenExceptionMatches(err, exc_type);
 }
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
+    assert(PyExceptionClass_Check(exc_type1));
+    assert(PyExceptionClass_Check(exc_type2));
     if (likely(err == exc_type1 || err == exc_type2)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
         return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
@@ -14220,6 +14252,9 @@ static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
   Py_DECREF(x);
   return ival;
 }
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) {
+  return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False);
+}
 static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
     return PyInt_FromSize_t(ival);
 }
diff --git a/gensim/models/fasttext_corpusfile.cpp b/gensim/models/fasttext_corpusfile.cpp
index 861a7df26f..0ab12bffda 100644
--- a/gensim/models/fasttext_corpusfile.cpp
+++ b/gensim/models/fasttext_corpusfile.cpp
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.28.2 */
+/* Generated by Cython 0.28.4 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,7 +7,7 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_28_2"
+#define CYTHON_ABI "0_28_4"
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -467,6 +467,7 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define PyString_Type                PyUnicode_Type
   #define PyString_Check               PyUnicode_Check
   #define PyString_CheckExact          PyUnicode_CheckExact
+  #define PyObject_Unicode             PyObject_Str
 #endif
 #if PY_MAJOR_VERSION >= 3
   #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
@@ -673,7 +674,7 @@ static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) {
 #define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
 #define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
 #define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
-#define __Pyx_PyBool_FromLong(b) ((b) ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False))
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b);
 static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
 static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x);
 #define __Pyx_PySequence_Tuple(obj)\
@@ -781,7 +782,7 @@ static CYTHON_INLINE void __Pyx_pretend_to_initialize(void* ptr) { (void)ptr; }
 static PyObject *__pyx_m = NULL;
 static PyObject *__pyx_d;
 static PyObject *__pyx_b;
-static PyObject *__pyx_cython_runtime;
+static PyObject *__pyx_cython_runtime = NULL;
 static PyObject *__pyx_empty_tuple;
 static PyObject *__pyx_empty_bytes;
 static PyObject *__pyx_empty_unicode;
@@ -832,7 +833,7 @@ static const char *__pyx_f[] = {
 #endif
 
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":730
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":730
  * # in Cython to enable them only on the right systems.
  * 
  * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
@@ -841,7 +842,7 @@ static const char *__pyx_f[] = {
  */
 typedef npy_int8 __pyx_t_5numpy_int8_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":731
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":731
  * 
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
@@ -850,7 +851,7 @@ typedef npy_int8 __pyx_t_5numpy_int8_t;
  */
 typedef npy_int16 __pyx_t_5numpy_int16_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":732
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":732
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
@@ -859,7 +860,7 @@ typedef npy_int16 __pyx_t_5numpy_int16_t;
  */
 typedef npy_int32 __pyx_t_5numpy_int32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":733
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":733
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t
  * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
@@ -868,7 +869,7 @@ typedef npy_int32 __pyx_t_5numpy_int32_t;
  */
 typedef npy_int64 __pyx_t_5numpy_int64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":737
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":737
  * #ctypedef npy_int128     int128_t
  * 
  * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
@@ -877,7 +878,7 @@ typedef npy_int64 __pyx_t_5numpy_int64_t;
  */
 typedef npy_uint8 __pyx_t_5numpy_uint8_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":738
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":738
  * 
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
@@ -886,7 +887,7 @@ typedef npy_uint8 __pyx_t_5numpy_uint8_t;
  */
 typedef npy_uint16 __pyx_t_5numpy_uint16_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":739
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":739
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
@@ -895,7 +896,7 @@ typedef npy_uint16 __pyx_t_5numpy_uint16_t;
  */
 typedef npy_uint32 __pyx_t_5numpy_uint32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":740
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":740
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t
  * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
@@ -904,7 +905,7 @@ typedef npy_uint32 __pyx_t_5numpy_uint32_t;
  */
 typedef npy_uint64 __pyx_t_5numpy_uint64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":744
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":744
  * #ctypedef npy_uint128    uint128_t
  * 
  * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
@@ -913,7 +914,7 @@ typedef npy_uint64 __pyx_t_5numpy_uint64_t;
  */
 typedef npy_float32 __pyx_t_5numpy_float32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":745
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":745
  * 
  * ctypedef npy_float32    float32_t
  * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
@@ -922,7 +923,7 @@ typedef npy_float32 __pyx_t_5numpy_float32_t;
  */
 typedef npy_float64 __pyx_t_5numpy_float64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":754
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":754
  * # The int types are mapped a bit surprising --
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
@@ -931,7 +932,7 @@ typedef npy_float64 __pyx_t_5numpy_float64_t;
  */
 typedef npy_long __pyx_t_5numpy_int_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":755
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":755
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
@@ -940,7 +941,7 @@ typedef npy_long __pyx_t_5numpy_int_t;
  */
 typedef npy_longlong __pyx_t_5numpy_long_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":756
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":756
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t
  * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
@@ -949,7 +950,7 @@ typedef npy_longlong __pyx_t_5numpy_long_t;
  */
 typedef npy_longlong __pyx_t_5numpy_longlong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":758
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":758
  * ctypedef npy_longlong   longlong_t
  * 
  * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
@@ -958,7 +959,7 @@ typedef npy_longlong __pyx_t_5numpy_longlong_t;
  */
 typedef npy_ulong __pyx_t_5numpy_uint_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":759
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":759
  * 
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
@@ -967,7 +968,7 @@ typedef npy_ulong __pyx_t_5numpy_uint_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":760
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":760
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t
  * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
@@ -976,7 +977,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":762
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":762
  * ctypedef npy_ulonglong  ulonglong_t
  * 
  * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
@@ -985,7 +986,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
  */
 typedef npy_intp __pyx_t_5numpy_intp_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":763
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":763
  * 
  * ctypedef npy_intp       intp_t
  * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
@@ -994,7 +995,7 @@ typedef npy_intp __pyx_t_5numpy_intp_t;
  */
 typedef npy_uintp __pyx_t_5numpy_uintp_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":765
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":765
  * ctypedef npy_uintp      uintp_t
  * 
  * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
@@ -1003,7 +1004,7 @@ typedef npy_uintp __pyx_t_5numpy_uintp_t;
  */
 typedef npy_double __pyx_t_5numpy_float_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":766
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":766
  * 
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
@@ -1012,7 +1013,7 @@ typedef npy_double __pyx_t_5numpy_float_t;
  */
 typedef npy_double __pyx_t_5numpy_double_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":767
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":767
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t
  * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
@@ -1076,7 +1077,7 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
 struct __pyx_obj_6gensim_6models_19word2vec_corpusfile_CythonLineSentence;
 struct __pyx_obj_6gensim_6models_19word2vec_corpusfile_CythonVocab;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":769
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":769
  * ctypedef npy_longdouble longdouble_t
  * 
  * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
@@ -1085,7 +1086,7 @@ struct __pyx_obj_6gensim_6models_19word2vec_corpusfile_CythonVocab;
  */
 typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":770
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":770
  * 
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
@@ -1094,7 +1095,7 @@ typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":771
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":771
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t
  * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
@@ -1103,7 +1104,7 @@ typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
  */
 typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":773
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":773
  * ctypedef npy_clongdouble clongdouble_t
  * 
  * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
@@ -1609,6 +1610,9 @@ static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);
 /* None.proto */
 static CYTHON_INLINE int __Pyx_ErrOccurredWithGIL(void); /* proto */
 
+/* None.proto */
+#include <new>
+
 /* RealImag.proto */
 #if CYTHON_CCOMPLEX
   #ifdef __cplusplus
@@ -1710,9 +1714,6 @@ static CYTHON_INLINE int __Pyx_ErrOccurredWithGIL(void); /* proto */
 /* CIntToPy.proto */
 static CYTHON_INLINE PyObject* __Pyx_PyInt_From_enum__NPY_TYPES(enum NPY_TYPES value);
 
-/* None.proto */
-#include <new>
-
 /* CIntFromPy.proto */
 static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);
 
@@ -3877,7 +3878,7 @@ static PyObject *__pyx_pf_6gensim_6models_19fasttext_corpusfile_2train_epoch_cbo
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":215
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":215
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -3925,7 +3926,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_info->obj = Py_None; __Pyx_INCREF(Py_None);
   __Pyx_GIVEREF(__pyx_v_info->obj);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":222
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":222
  * 
  *             cdef int i, ndim
  *             cdef int endian_detector = 1             # <<<<<<<<<<<<<<
@@ -3934,7 +3935,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_endian_detector = 1;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":223
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":223
  *             cdef int i, ndim
  *             cdef int endian_detector = 1
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
@@ -3943,7 +3944,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":225
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":225
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
  * 
  *             ndim = PyArray_NDIM(self)             # <<<<<<<<<<<<<<
@@ -3952,7 +3953,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_ndim = PyArray_NDIM(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -3966,7 +3967,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L4_bool_binop_done;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":228
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":228
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_C_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -3977,7 +3978,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L4_bool_binop_done:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -3986,7 +3987,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":229
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":229
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_C_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
@@ -3999,7 +4000,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 229, __pyx_L1_error)
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -4008,7 +4009,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -4022,7 +4023,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L7_bool_binop_done;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":232
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":232
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_F_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -4033,7 +4034,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L7_bool_binop_done:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -4042,7 +4043,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":233
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":233
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_F_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
@@ -4055,7 +4056,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 233, __pyx_L1_error)
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -4064,7 +4065,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":235
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":235
  *                 raise ValueError(u"ndarray is not Fortran contiguous")
  * 
  *             info.buf = PyArray_DATA(self)             # <<<<<<<<<<<<<<
@@ -4073,7 +4074,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->buf = PyArray_DATA(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":236
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":236
  * 
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim             # <<<<<<<<<<<<<<
@@ -4082,7 +4083,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->ndim = __pyx_v_ndim;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":237
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":237
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -4092,7 +4093,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":240
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":240
  *                 # Allocate new buffer for strides and shape info.
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)             # <<<<<<<<<<<<<<
@@ -4101,7 +4102,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->strides = ((Py_ssize_t *)PyObject_Malloc((((sizeof(Py_ssize_t)) * 2) * ((size_t)__pyx_v_ndim))));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":241
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":241
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim             # <<<<<<<<<<<<<<
@@ -4110,7 +4111,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->shape = (__pyx_v_info->strides + __pyx_v_ndim);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":242
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":242
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -4122,7 +4123,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
       __pyx_v_i = __pyx_t_6;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":243
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":243
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]             # <<<<<<<<<<<<<<
@@ -4131,7 +4132,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
       (__pyx_v_info->strides[__pyx_v_i]) = (PyArray_STRIDES(__pyx_v_self)[__pyx_v_i]);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":244
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":244
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]
  *                     info.shape[i] = PyArray_DIMS(self)[i]             # <<<<<<<<<<<<<<
@@ -4141,7 +4142,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       (__pyx_v_info->shape[__pyx_v_i]) = (PyArray_DIMS(__pyx_v_self)[__pyx_v_i]);
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":237
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":237
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -4151,7 +4152,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L9;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":246
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":246
  *                     info.shape[i] = PyArray_DIMS(self)[i]
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)             # <<<<<<<<<<<<<<
@@ -4161,7 +4162,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->strides = ((Py_ssize_t *)PyArray_STRIDES(__pyx_v_self));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":247
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":247
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)             # <<<<<<<<<<<<<<
@@ -4172,7 +4173,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   }
   __pyx_L9:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":248
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":248
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL             # <<<<<<<<<<<<<<
@@ -4181,7 +4182,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->suboffsets = NULL;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":249
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":249
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)             # <<<<<<<<<<<<<<
@@ -4190,7 +4191,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->itemsize = PyArray_ITEMSIZE(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":250
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":250
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)
  *             info.readonly = not PyArray_ISWRITEABLE(self)             # <<<<<<<<<<<<<<
@@ -4199,7 +4200,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->readonly = (!(PyArray_ISWRITEABLE(__pyx_v_self) != 0));
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":253
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":253
  * 
  *             cdef int t
  *             cdef char* f = NULL             # <<<<<<<<<<<<<<
@@ -4208,7 +4209,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_f = NULL;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":254
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":254
  *             cdef int t
  *             cdef char* f = NULL
  *             cdef dtype descr = self.descr             # <<<<<<<<<<<<<<
@@ -4220,7 +4221,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_descr = ((PyArray_Descr *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":257
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":257
  *             cdef int offset
  * 
  *             info.obj = self             # <<<<<<<<<<<<<<
@@ -4233,7 +4234,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __Pyx_DECREF(__pyx_v_info->obj);
   __pyx_v_info->obj = ((PyObject *)__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":259
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":259
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -4243,7 +4244,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = ((!(PyDataType_HASFIELDS(__pyx_v_descr) != 0)) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":260
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":260
  * 
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num             # <<<<<<<<<<<<<<
@@ -4253,7 +4254,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_4 = __pyx_v_descr->type_num;
     __pyx_v_t = __pyx_t_4;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -4273,7 +4274,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     }
     __pyx_L15_next_or:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":262
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":262
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):             # <<<<<<<<<<<<<<
@@ -4290,7 +4291,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_1 = __pyx_t_2;
     __pyx_L14_bool_binop_done:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -4299,7 +4300,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     if (unlikely(__pyx_t_1)) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":263
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":263
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -4312,7 +4313,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 263, __pyx_L1_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -4321,7 +4322,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":264
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":264
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"             # <<<<<<<<<<<<<<
@@ -4333,7 +4334,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"b");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":265
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"             # <<<<<<<<<<<<<<
@@ -4344,7 +4345,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"B");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":266
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"             # <<<<<<<<<<<<<<
@@ -4355,7 +4356,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"h");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":267
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":267
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"             # <<<<<<<<<<<<<<
@@ -4366,7 +4367,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"H");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":268
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"             # <<<<<<<<<<<<<<
@@ -4377,7 +4378,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"i");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":269
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":269
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"             # <<<<<<<<<<<<<<
@@ -4388,7 +4389,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"I");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":270
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"             # <<<<<<<<<<<<<<
@@ -4399,7 +4400,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"l");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":271
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"             # <<<<<<<<<<<<<<
@@ -4410,7 +4411,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"L");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":272
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"             # <<<<<<<<<<<<<<
@@ -4421,7 +4422,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"q");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":273
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":273
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"             # <<<<<<<<<<<<<<
@@ -4432,7 +4433,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Q");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":274
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"             # <<<<<<<<<<<<<<
@@ -4443,7 +4444,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"f");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":275
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":275
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"             # <<<<<<<<<<<<<<
@@ -4454,7 +4455,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"d");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":276
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"             # <<<<<<<<<<<<<<
@@ -4465,7 +4466,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"g");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":277
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":277
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"             # <<<<<<<<<<<<<<
@@ -4476,7 +4477,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zf");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":278
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":278
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"             # <<<<<<<<<<<<<<
@@ -4487,7 +4488,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zd");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":279
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":279
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"             # <<<<<<<<<<<<<<
@@ -4498,7 +4499,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zg");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":280
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"
  *                 elif t == NPY_OBJECT:      f = "O"             # <<<<<<<<<<<<<<
@@ -4510,7 +4511,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       default:
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":282
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":282
  *                 elif t == NPY_OBJECT:      f = "O"
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -4531,7 +4532,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":283
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":283
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f             # <<<<<<<<<<<<<<
@@ -4540,7 +4541,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->format = __pyx_v_f;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":284
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":284
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f
  *                 return             # <<<<<<<<<<<<<<
@@ -4550,7 +4551,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_r = 0;
     goto __pyx_L0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":259
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":259
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -4559,7 +4560,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":286
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":286
  *                 return
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)             # <<<<<<<<<<<<<<
@@ -4569,7 +4570,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->format = ((char *)PyObject_Malloc(0xFF));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":287
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":287
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment             # <<<<<<<<<<<<<<
@@ -4578,7 +4579,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     (__pyx_v_info->format[0]) = '^';
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":288
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":288
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0             # <<<<<<<<<<<<<<
@@ -4587,7 +4588,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_offset = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":289
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":289
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0
  *                 f = _util_dtypestring(descr, info.format + 1,             # <<<<<<<<<<<<<<
@@ -4597,7 +4598,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_8 = __pyx_f_5numpy__util_dtypestring(__pyx_v_descr, (__pyx_v_info->format + 1), (__pyx_v_info->format + 0xFF), (&__pyx_v_offset)); if (unlikely(__pyx_t_8 == ((char *)NULL))) __PYX_ERR(1, 289, __pyx_L1_error)
     __pyx_v_f = __pyx_t_8;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":292
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":292
  *                                       info.format + _buffer_format_string_len,
  *                                       &offset)
  *                 f[0] = c'\0' # Terminate format string             # <<<<<<<<<<<<<<
@@ -4607,7 +4608,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     (__pyx_v_f[0]) = '\x00';
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":215
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":215
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -4639,7 +4640,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":294
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":294
  *                 f[0] = c'\0' # Terminate format string
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
@@ -4663,7 +4664,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("__releasebuffer__", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":295
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":295
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
@@ -4673,7 +4674,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __pyx_t_1 = (PyArray_HASFIELDS(__pyx_v_self) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":296
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":296
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)             # <<<<<<<<<<<<<<
@@ -4682,7 +4683,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->format);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":295
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":295
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
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@@ -4691,7 +4692,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
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   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":297
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
  *             if PyArray_HASFIELDS(self):
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@@ -4701,7 +4702,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
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   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":298
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":298
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
  *                 PyObject_Free(info.strides)             # <<<<<<<<<<<<<<
@@ -4710,7 +4711,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
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     PyObject_Free(__pyx_v_info->strides);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":297
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -4719,7 +4720,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
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   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":294
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":294
  *                 f[0] = c'\0' # Terminate format string
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  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":775
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":775
  * ctypedef npy_cdouble     complex_t
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  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
@@ -4745,7 +4746,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":776
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
  * 
  * cdef inline object PyArray_MultiIterNew1(a):
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@@ -4759,7 +4760,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":775
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":775
  * ctypedef npy_cdouble     complex_t
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  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
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   return __pyx_r;
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":778
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
  *     return PyArray_MultiIterNew(1, <void*>a)
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  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -4792,7 +4793,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":779
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":779
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):
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   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":778
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
  *     return PyArray_MultiIterNew(1, <void*>a)
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  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -4825,7 +4826,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":781
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":781
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
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  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -4839,7 +4840,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":782
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":782
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):
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@@ -4853,7 +4854,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":781
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":781
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
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  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -4872,7 +4873,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":784
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
@@ -4886,7 +4887,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":785
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):
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@@ -4900,7 +4901,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
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   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":784
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
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  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
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   return __pyx_r;
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":787
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":787
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  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
@@ -4933,7 +4934,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":788
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  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":787
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":787
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
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  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":790
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":791
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  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":792
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":792
  * cdef inline tuple PyDataType_SHAPE(dtype d):
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":791
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
  * 
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":794
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":794
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":790
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":796
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":796
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":801
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":802
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
  *     cdef dtype child
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":805
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
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     __pyx_t_3 = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":806
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
  * 
  *     for childname in descr.names:
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@@ -5127,7 +5128,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":807
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":807
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     __pyx_t_4 = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":809
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
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@@ -5179,7 +5180,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":810
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":810
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":809
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
  *         child, new_offset = fields
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  *         if (end - f) - <int>(new_offset - offset[0]) < 15:             # <<<<<<<<<<<<<<
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     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
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  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -5221,7 +5222,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":813
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
  * 
  *         if ((child.byteorder == c'>' and little_endian) or
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     __pyx_L7_bool_binop_done:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -5247,7 +5248,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     if (unlikely(__pyx_t_6)) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":814
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":814
  *         if ((child.byteorder == c'>' and little_endian) or
  *             (child.byteorder == c'<' and not little_endian)):
  *             raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -5260,7 +5261,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 814, __pyx_L1_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -5269,7 +5270,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":824
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
  * 
  *         # Output padding bytes
  *         while offset[0] < new_offset:             # <<<<<<<<<<<<<<
@@ -5285,7 +5286,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       if (!__pyx_t_6) break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":825
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":825
  *         # Output padding bytes
  *         while offset[0] < new_offset:
  *             f[0] = 120 # "x"; pad byte             # <<<<<<<<<<<<<<
@@ -5294,7 +5295,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       (__pyx_v_f[0]) = 0x78;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":826
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":826
  *         while offset[0] < new_offset:
  *             f[0] = 120 # "x"; pad byte
  *             f += 1             # <<<<<<<<<<<<<<
@@ -5303,7 +5304,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":827
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
  *             f[0] = 120 # "x"; pad byte
  *             f += 1
  *             offset[0] += 1             # <<<<<<<<<<<<<<
@@ -5314,7 +5315,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + 1);
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":829
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":829
  *             offset[0] += 1
  * 
  *         offset[0] += child.itemsize             # <<<<<<<<<<<<<<
@@ -5324,7 +5325,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_8 = 0;
     (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + __pyx_v_child->elsize);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":831
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -5334,7 +5335,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = ((!(PyDataType_HASFIELDS(__pyx_v_child) != 0)) != 0);
     if (__pyx_t_6) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":832
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":832
  * 
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num             # <<<<<<<<<<<<<<
@@ -5346,7 +5347,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_XDECREF_SET(__pyx_v_t, __pyx_t_4);
       __pyx_t_4 = 0;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":833
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -5356,7 +5357,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __pyx_t_6 = (((__pyx_v_end - __pyx_v_f) < 5) != 0);
       if (unlikely(__pyx_t_6)) {
 
-        /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":834
+        /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
  *             t = child.type_num
  *             if end - f < 5:
  *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
@@ -5369,7 +5370,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         __PYX_ERR(1, 834, __pyx_L1_error)
 
-        /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":833
+        /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -5378,7 +5379,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":837
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
  * 
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"             # <<<<<<<<<<<<<<
@@ -5396,7 +5397,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":838
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":838
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"             # <<<<<<<<<<<<<<
@@ -5414,7 +5415,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":839
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":839
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"             # <<<<<<<<<<<<<<
@@ -5432,7 +5433,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":840
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":840
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"             # <<<<<<<<<<<<<<
@@ -5450,7 +5451,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":841
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":841
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"             # <<<<<<<<<<<<<<
@@ -5468,7 +5469,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":842
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"             # <<<<<<<<<<<<<<
@@ -5486,7 +5487,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":843
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":843
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"             # <<<<<<<<<<<<<<
@@ -5504,7 +5505,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":844
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":844
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"             # <<<<<<<<<<<<<<
@@ -5522,7 +5523,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":845
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":845
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"             # <<<<<<<<<<<<<<
@@ -5540,7 +5541,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":846
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":846
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"             # <<<<<<<<<<<<<<
@@ -5558,7 +5559,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":847
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":847
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"             # <<<<<<<<<<<<<<
@@ -5576,7 +5577,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":848
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":848
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"             # <<<<<<<<<<<<<<
@@ -5594,7 +5595,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":849
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":849
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"             # <<<<<<<<<<<<<<
@@ -5612,7 +5613,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":850
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":850
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf             # <<<<<<<<<<<<<<
@@ -5632,7 +5633,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":851
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd             # <<<<<<<<<<<<<<
@@ -5652,7 +5653,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":852
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":852
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg             # <<<<<<<<<<<<<<
@@ -5672,7 +5673,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":853
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":853
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"             # <<<<<<<<<<<<<<
@@ -5690,7 +5691,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":855
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -5709,7 +5710,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       }
       __pyx_L15:;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":856
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *             f += 1             # <<<<<<<<<<<<<<
@@ -5718,7 +5719,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":831
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -5728,7 +5729,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       goto __pyx_L13;
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":860
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":860
  *             # Cython ignores struct boundary information ("T{...}"),
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)             # <<<<<<<<<<<<<<
@@ -5741,7 +5742,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     }
     __pyx_L13:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":805
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
  *     cdef tuple fields
  * 
  *     for childname in descr.names:             # <<<<<<<<<<<<<<
@@ -5751,7 +5752,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":861
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":861
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)
  *     return f             # <<<<<<<<<<<<<<
@@ -5761,7 +5762,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   __pyx_r = __pyx_v_f;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":796
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":796
  *         return ()
  * 
  * cdef inline char* _util_dtypestring(dtype descr, char* f, char* end, int* offset) except NULL:             # <<<<<<<<<<<<<<
@@ -5786,7 +5787,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":977
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":977
  * 
  * 
  * cdef inline void set_array_base(ndarray arr, object base):             # <<<<<<<<<<<<<<
@@ -5801,7 +5802,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   int __pyx_t_2;
   __Pyx_RefNannySetupContext("set_array_base", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":979
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":980
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":980
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":979
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":979
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":982
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":983
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":984
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":984
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":985
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":977
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":988
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":989
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":988
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":991
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":987
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":998
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":999
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1000
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1004
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1005
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1006
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1010
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1011
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1012
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":233
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":263
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   __Pyx_GIVEREF(__pyx_tuple__3);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":810
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":810
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")             # <<<<<<<<<<<<<<
@@ -6495,7 +6496,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__4);
   __Pyx_GIVEREF(__pyx_tuple__4);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":814
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":814
  *         if ((child.byteorder == c'>' and little_endian) or
  *             (child.byteorder == c'<' and not little_endian)):
  *             raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -6506,7 +6507,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__5);
   __Pyx_GIVEREF(__pyx_tuple__5);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":834
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
  *             t = child.type_num
  *             if end - f < 5:
  *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
@@ -6517,7 +6518,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__6);
   __Pyx_GIVEREF(__pyx_tuple__6);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1000
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1000
  *         _import_array()
  *     except Exception:
  *         raise ImportError("numpy.core.multiarray failed to import")             # <<<<<<<<<<<<<<
@@ -6528,7 +6529,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__7);
   __Pyx_GIVEREF(__pyx_tuple__7);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1006
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1006
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -6539,7 +6540,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__8);
   __Pyx_GIVEREF(__pyx_tuple__8);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1012
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1012
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -6725,7 +6726,7 @@ static int __Pyx_modinit_function_import_code(void) {
 #ifndef CYTHON_SMALL_CODE
 #if defined(__clang__)
     #define CYTHON_SMALL_CODE
-#elif defined(__GNUC__)
+#elif defined(__GNUC__) && (!(defined(__cplusplus)) || (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 4)))
     #define CYTHON_SMALL_CODE __attribute__((optimize("Os")))
 #else
     #define CYTHON_SMALL_CODE
@@ -6934,7 +6935,7 @@ if (!__Pyx_RefNanny) {
   if (PyDict_SetItem(__pyx_d, __pyx_n_s_test, __pyx_t_1) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1008
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1008
  *         raise ImportError("numpy.core.umath failed to import")
  * 
  * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
@@ -7613,7 +7614,7 @@ static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
 /* SaveResetException */
 #if CYTHON_FAST_THREAD_STATE
 static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     *type = tstate->exc_state.exc_type;
     *value = tstate->exc_state.exc_value;
     *tb = tstate->exc_state.exc_traceback;
@@ -7628,7 +7629,7 @@ static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject *
 }
 static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
     PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -7712,7 +7713,7 @@ static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
     *value = local_value;
     *tb = local_tb;
 #if CYTHON_FAST_THREAD_STATE
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -7837,6 +7838,9 @@ static int __Pyx_CLineForTraceback(CYTHON_UNUSED PyThreadState *tstate, int c_li
 #if CYTHON_COMPILING_IN_CPYTHON
     PyObject **cython_runtime_dict;
 #endif
+    if (unlikely(!__pyx_cython_runtime)) {
+        return c_line;
+    }
     __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback);
 #if CYTHON_COMPILING_IN_CPYTHON
     cython_runtime_dict = _PyObject_GetDictPtr(__pyx_cython_runtime);
@@ -8903,14 +8907,42 @@ static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err,
     return res;
 }
 #endif
+static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    assert(PyExceptionClass_Check(exc_type));
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        PyObject *t = PyTuple_GET_ITEM(tuple, i);
+        #if PY_MAJOR_VERSION < 3
+        if (likely(exc_type == t)) return 1;
+        #endif
+        if (likely(PyExceptionClass_Check(t))) {
+            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
+        } else {
+        }
+    }
+    return 0;
+}
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
     if (likely(err == exc_type)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
-        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        if (likely(PyExceptionClass_Check(exc_type))) {
+            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        } else if (likely(PyTuple_Check(exc_type))) {
+            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
+        } else {
+        }
     }
     return PyErr_GivenExceptionMatches(err, exc_type);
 }
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
+    assert(PyExceptionClass_Check(exc_type1));
+    assert(PyExceptionClass_Check(exc_type2));
     if (likely(err == exc_type1 || err == exc_type2)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
         return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
@@ -9362,6 +9394,9 @@ static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
   Py_DECREF(x);
   return ival;
 }
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) {
+  return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False);
+}
 static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
     return PyInt_FromSize_t(ival);
 }
diff --git a/gensim/models/fasttext_inner.c b/gensim/models/fasttext_inner.c
index 670c4a94a4..480c863d35 100644
--- a/gensim/models/fasttext_inner.c
+++ b/gensim/models/fasttext_inner.c
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.28.2 */
+/* Generated by Cython 0.28.4 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,7 +7,7 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_28_2"
+#define CYTHON_ABI "0_28_4"
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -453,6 +453,7 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define PyString_Type                PyUnicode_Type
   #define PyString_Check               PyUnicode_Check
   #define PyString_CheckExact          PyUnicode_CheckExact
+  #define PyObject_Unicode             PyObject_Str
 #endif
 #if PY_MAJOR_VERSION >= 3
   #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
@@ -651,7 +652,7 @@ static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) {
 #define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
 #define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
 #define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
-#define __Pyx_PyBool_FromLong(b) ((b) ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False))
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b);
 static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
 static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x);
 #define __Pyx_PySequence_Tuple(obj)\
@@ -759,7 +760,7 @@ static CYTHON_INLINE void __Pyx_pretend_to_initialize(void* ptr) { (void)ptr; }
 static PyObject *__pyx_m = NULL;
 static PyObject *__pyx_d;
 static PyObject *__pyx_b;
-static PyObject *__pyx_cython_runtime;
+static PyObject *__pyx_cython_runtime = NULL;
 static PyObject *__pyx_empty_tuple;
 static PyObject *__pyx_empty_bytes;
 static PyObject *__pyx_empty_unicode;
@@ -809,7 +810,7 @@ static const char *__pyx_f[] = {
 #endif
 
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":730
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":730
  * # in Cython to enable them only on the right systems.
  * 
  * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
@@ -818,7 +819,7 @@ static const char *__pyx_f[] = {
  */
 typedef npy_int8 __pyx_t_5numpy_int8_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":731
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":731
  * 
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
@@ -827,7 +828,7 @@ typedef npy_int8 __pyx_t_5numpy_int8_t;
  */
 typedef npy_int16 __pyx_t_5numpy_int16_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":732
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":732
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
@@ -836,7 +837,7 @@ typedef npy_int16 __pyx_t_5numpy_int16_t;
  */
 typedef npy_int32 __pyx_t_5numpy_int32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":733
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":733
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t
  * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
@@ -845,7 +846,7 @@ typedef npy_int32 __pyx_t_5numpy_int32_t;
  */
 typedef npy_int64 __pyx_t_5numpy_int64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":737
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":737
  * #ctypedef npy_int128     int128_t
  * 
  * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
@@ -854,7 +855,7 @@ typedef npy_int64 __pyx_t_5numpy_int64_t;
  */
 typedef npy_uint8 __pyx_t_5numpy_uint8_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":738
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":738
  * 
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
@@ -863,7 +864,7 @@ typedef npy_uint8 __pyx_t_5numpy_uint8_t;
  */
 typedef npy_uint16 __pyx_t_5numpy_uint16_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":739
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":739
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
@@ -872,7 +873,7 @@ typedef npy_uint16 __pyx_t_5numpy_uint16_t;
  */
 typedef npy_uint32 __pyx_t_5numpy_uint32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":740
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":740
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t
  * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
@@ -881,7 +882,7 @@ typedef npy_uint32 __pyx_t_5numpy_uint32_t;
  */
 typedef npy_uint64 __pyx_t_5numpy_uint64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":744
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":744
  * #ctypedef npy_uint128    uint128_t
  * 
  * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
@@ -890,7 +891,7 @@ typedef npy_uint64 __pyx_t_5numpy_uint64_t;
  */
 typedef npy_float32 __pyx_t_5numpy_float32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":745
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":745
  * 
  * ctypedef npy_float32    float32_t
  * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
@@ -899,7 +900,7 @@ typedef npy_float32 __pyx_t_5numpy_float32_t;
  */
 typedef npy_float64 __pyx_t_5numpy_float64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":754
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":754
  * # The int types are mapped a bit surprising --
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
@@ -908,7 +909,7 @@ typedef npy_float64 __pyx_t_5numpy_float64_t;
  */
 typedef npy_long __pyx_t_5numpy_int_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":755
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":755
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
@@ -917,7 +918,7 @@ typedef npy_long __pyx_t_5numpy_int_t;
  */
 typedef npy_longlong __pyx_t_5numpy_long_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":756
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":756
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t
  * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
@@ -926,7 +927,7 @@ typedef npy_longlong __pyx_t_5numpy_long_t;
  */
 typedef npy_longlong __pyx_t_5numpy_longlong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":758
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":758
  * ctypedef npy_longlong   longlong_t
  * 
  * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
@@ -935,7 +936,7 @@ typedef npy_longlong __pyx_t_5numpy_longlong_t;
  */
 typedef npy_ulong __pyx_t_5numpy_uint_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":759
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":759
  * 
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
@@ -944,7 +945,7 @@ typedef npy_ulong __pyx_t_5numpy_uint_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":760
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":760
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t
  * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
@@ -953,7 +954,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":762
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":762
  * ctypedef npy_ulonglong  ulonglong_t
  * 
  * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
@@ -962,7 +963,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
  */
 typedef npy_intp __pyx_t_5numpy_intp_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":763
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":763
  * 
  * ctypedef npy_intp       intp_t
  * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
@@ -971,7 +972,7 @@ typedef npy_intp __pyx_t_5numpy_intp_t;
  */
 typedef npy_uintp __pyx_t_5numpy_uintp_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":765
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":765
  * ctypedef npy_uintp      uintp_t
  * 
  * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
@@ -980,7 +981,7 @@ typedef npy_uintp __pyx_t_5numpy_uintp_t;
  */
 typedef npy_double __pyx_t_5numpy_float_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":766
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":766
  * 
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
@@ -989,7 +990,7 @@ typedef npy_double __pyx_t_5numpy_float_t;
  */
 typedef npy_double __pyx_t_5numpy_double_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":767
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":767
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t
  * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
@@ -1033,7 +1034,7 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
 
 /*--- Type declarations ---*/
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":769
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":769
  * ctypedef npy_longdouble longdouble_t
  * 
  * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
@@ -1042,7 +1043,7 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
  */
 typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":770
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":770
  * 
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
@@ -1051,7 +1052,7 @@ typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":771
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":771
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t
  * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
@@ -1060,7 +1061,7 @@ typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
  */
 typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":773
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":773
  * ctypedef npy_clongdouble clongdouble_t
  * 
  * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
@@ -6477,7 +6478,7 @@ static PyObject *__pyx_pf_6gensim_6models_14fasttext_inner_4init(CYTHON_UNUSED P
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":215
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":215
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -6525,7 +6526,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_info->obj = Py_None; __Pyx_INCREF(Py_None);
   __Pyx_GIVEREF(__pyx_v_info->obj);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":222
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":222
  * 
  *             cdef int i, ndim
  *             cdef int endian_detector = 1             # <<<<<<<<<<<<<<
@@ -6534,7 +6535,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_endian_detector = 1;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":223
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":223
  *             cdef int i, ndim
  *             cdef int endian_detector = 1
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
@@ -6543,7 +6544,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":225
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":225
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
  * 
  *             ndim = PyArray_NDIM(self)             # <<<<<<<<<<<<<<
@@ -6552,7 +6553,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_ndim = PyArray_NDIM(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -6566,7 +6567,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L4_bool_binop_done;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":228
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":228
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_C_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -6577,7 +6578,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L4_bool_binop_done:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -6586,7 +6587,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":229
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":229
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_C_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
@@ -6599,7 +6600,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 229, __pyx_L1_error)
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -6608,7 +6609,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -6622,7 +6623,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L7_bool_binop_done;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":232
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":232
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_F_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -6633,7 +6634,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L7_bool_binop_done:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -6642,7 +6643,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":233
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":233
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_F_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
@@ -6655,7 +6656,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 233, __pyx_L1_error)
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -6664,7 +6665,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":235
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":235
  *                 raise ValueError(u"ndarray is not Fortran contiguous")
  * 
  *             info.buf = PyArray_DATA(self)             # <<<<<<<<<<<<<<
@@ -6673,7 +6674,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->buf = PyArray_DATA(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":236
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":236
  * 
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim             # <<<<<<<<<<<<<<
@@ -6682,7 +6683,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->ndim = __pyx_v_ndim;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":237
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":237
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -6692,7 +6693,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":240
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":240
  *                 # Allocate new buffer for strides and shape info.
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)             # <<<<<<<<<<<<<<
@@ -6701,7 +6702,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->strides = ((Py_ssize_t *)PyObject_Malloc((((sizeof(Py_ssize_t)) * 2) * ((size_t)__pyx_v_ndim))));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":241
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":241
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim             # <<<<<<<<<<<<<<
@@ -6710,7 +6711,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->shape = (__pyx_v_info->strides + __pyx_v_ndim);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":242
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":242
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -6722,7 +6723,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
       __pyx_v_i = __pyx_t_6;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":243
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":243
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]             # <<<<<<<<<<<<<<
@@ -6731,7 +6732,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
       (__pyx_v_info->strides[__pyx_v_i]) = (PyArray_STRIDES(__pyx_v_self)[__pyx_v_i]);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":244
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":244
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]
  *                     info.shape[i] = PyArray_DIMS(self)[i]             # <<<<<<<<<<<<<<
@@ -6741,7 +6742,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       (__pyx_v_info->shape[__pyx_v_i]) = (PyArray_DIMS(__pyx_v_self)[__pyx_v_i]);
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":237
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":237
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -6751,7 +6752,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L9;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":246
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":246
  *                     info.shape[i] = PyArray_DIMS(self)[i]
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)             # <<<<<<<<<<<<<<
@@ -6761,7 +6762,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->strides = ((Py_ssize_t *)PyArray_STRIDES(__pyx_v_self));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":247
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":247
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)             # <<<<<<<<<<<<<<
@@ -6772,7 +6773,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   }
   __pyx_L9:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":248
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":248
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL             # <<<<<<<<<<<<<<
@@ -6781,7 +6782,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->suboffsets = NULL;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":249
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":249
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)             # <<<<<<<<<<<<<<
@@ -6790,7 +6791,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->itemsize = PyArray_ITEMSIZE(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":250
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":250
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)
  *             info.readonly = not PyArray_ISWRITEABLE(self)             # <<<<<<<<<<<<<<
@@ -6799,7 +6800,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->readonly = (!(PyArray_ISWRITEABLE(__pyx_v_self) != 0));
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":253
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":253
  * 
  *             cdef int t
  *             cdef char* f = NULL             # <<<<<<<<<<<<<<
@@ -6808,7 +6809,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_f = NULL;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":254
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":254
  *             cdef int t
  *             cdef char* f = NULL
  *             cdef dtype descr = self.descr             # <<<<<<<<<<<<<<
@@ -6820,7 +6821,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_descr = ((PyArray_Descr *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":257
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":257
  *             cdef int offset
  * 
  *             info.obj = self             # <<<<<<<<<<<<<<
@@ -6833,7 +6834,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __Pyx_DECREF(__pyx_v_info->obj);
   __pyx_v_info->obj = ((PyObject *)__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":259
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":259
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -6843,7 +6844,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = ((!(PyDataType_HASFIELDS(__pyx_v_descr) != 0)) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":260
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":260
  * 
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num             # <<<<<<<<<<<<<<
@@ -6853,7 +6854,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_4 = __pyx_v_descr->type_num;
     __pyx_v_t = __pyx_t_4;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -6873,7 +6874,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     }
     __pyx_L15_next_or:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":262
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":262
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):             # <<<<<<<<<<<<<<
@@ -6890,7 +6891,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_1 = __pyx_t_2;
     __pyx_L14_bool_binop_done:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -6899,7 +6900,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     if (unlikely(__pyx_t_1)) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":263
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":263
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -6912,7 +6913,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 263, __pyx_L1_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -6921,7 +6922,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":264
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":264
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"             # <<<<<<<<<<<<<<
@@ -6933,7 +6934,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"b");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":265
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"             # <<<<<<<<<<<<<<
@@ -6944,7 +6945,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"B");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":266
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"             # <<<<<<<<<<<<<<
@@ -6955,7 +6956,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"h");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":267
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":267
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"             # <<<<<<<<<<<<<<
@@ -6966,7 +6967,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"H");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":268
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"             # <<<<<<<<<<<<<<
@@ -6977,7 +6978,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"i");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":269
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":269
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"             # <<<<<<<<<<<<<<
@@ -6988,7 +6989,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"I");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":270
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"             # <<<<<<<<<<<<<<
@@ -6999,7 +7000,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"l");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":271
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"             # <<<<<<<<<<<<<<
@@ -7010,7 +7011,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"L");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":272
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"             # <<<<<<<<<<<<<<
@@ -7021,7 +7022,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"q");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":273
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":273
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"             # <<<<<<<<<<<<<<
@@ -7032,7 +7033,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Q");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":274
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"             # <<<<<<<<<<<<<<
@@ -7043,7 +7044,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"f");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":275
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":275
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"             # <<<<<<<<<<<<<<
@@ -7054,7 +7055,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"d");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":276
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"             # <<<<<<<<<<<<<<
@@ -7065,7 +7066,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"g");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":277
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":277
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"             # <<<<<<<<<<<<<<
@@ -7076,7 +7077,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zf");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":278
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":278
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"             # <<<<<<<<<<<<<<
@@ -7087,7 +7088,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zd");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":279
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":279
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"             # <<<<<<<<<<<<<<
@@ -7098,7 +7099,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zg");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":280
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"
  *                 elif t == NPY_OBJECT:      f = "O"             # <<<<<<<<<<<<<<
@@ -7110,7 +7111,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       default:
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":282
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":282
  *                 elif t == NPY_OBJECT:      f = "O"
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -7131,7 +7132,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":283
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":283
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f             # <<<<<<<<<<<<<<
@@ -7140,7 +7141,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->format = __pyx_v_f;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":284
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":284
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f
  *                 return             # <<<<<<<<<<<<<<
@@ -7150,7 +7151,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_r = 0;
     goto __pyx_L0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":259
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":259
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -7159,7 +7160,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":286
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":286
  *                 return
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)             # <<<<<<<<<<<<<<
@@ -7169,7 +7170,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->format = ((char *)PyObject_Malloc(0xFF));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":287
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":287
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment             # <<<<<<<<<<<<<<
@@ -7178,7 +7179,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     (__pyx_v_info->format[0]) = '^';
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":288
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":288
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0             # <<<<<<<<<<<<<<
@@ -7187,7 +7188,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_offset = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":289
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":289
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0
  *                 f = _util_dtypestring(descr, info.format + 1,             # <<<<<<<<<<<<<<
@@ -7197,7 +7198,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_8 = __pyx_f_5numpy__util_dtypestring(__pyx_v_descr, (__pyx_v_info->format + 1), (__pyx_v_info->format + 0xFF), (&__pyx_v_offset)); if (unlikely(__pyx_t_8 == ((char *)NULL))) __PYX_ERR(1, 289, __pyx_L1_error)
     __pyx_v_f = __pyx_t_8;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":292
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":292
  *                                       info.format + _buffer_format_string_len,
  *                                       &offset)
  *                 f[0] = c'\0' # Terminate format string             # <<<<<<<<<<<<<<
@@ -7207,7 +7208,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     (__pyx_v_f[0]) = '\x00';
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":215
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":215
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -7239,7 +7240,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":294
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":294
  *                 f[0] = c'\0' # Terminate format string
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
@@ -7263,7 +7264,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("__releasebuffer__", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":295
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":295
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
@@ -7273,7 +7274,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __pyx_t_1 = (PyArray_HASFIELDS(__pyx_v_self) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":296
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":296
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)             # <<<<<<<<<<<<<<
@@ -7282,7 +7283,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->format);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":295
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":295
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
@@ -7291,7 +7292,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":297
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -7301,7 +7302,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":298
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":298
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
  *                 PyObject_Free(info.strides)             # <<<<<<<<<<<<<<
@@ -7310,7 +7311,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->strides);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":297
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
  *             if PyArray_HASFIELDS(self):
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@@ -7319,7 +7320,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
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   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":294
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":294
  *                 f[0] = c'\0' # Terminate format string
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":775
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":775
  * ctypedef npy_cdouble     complex_t
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  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
@@ -7345,7 +7346,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":776
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
  * 
  * cdef inline object PyArray_MultiIterNew1(a):
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@@ -7359,7 +7360,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":775
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":775
  * ctypedef npy_cdouble     complex_t
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  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
@@ -7378,7 +7379,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   return __pyx_r;
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":778
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
  *     return PyArray_MultiIterNew(1, <void*>a)
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  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -7392,7 +7393,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":779
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  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):
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@@ -7406,7 +7407,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
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   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":778
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
  *     return PyArray_MultiIterNew(1, <void*>a)
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  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -7425,7 +7426,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":781
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":781
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
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  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -7439,7 +7440,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":782
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":782
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):
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@@ -7453,7 +7454,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":781
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":781
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
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  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -7472,7 +7473,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":784
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
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  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
@@ -7486,7 +7487,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":785
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):
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@@ -7500,7 +7501,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":784
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
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  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
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   return __pyx_r;
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":787
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":787
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
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  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":788
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  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":787
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":787
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
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  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":790
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":791
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  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":792
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":792
  * cdef inline tuple PyDataType_SHAPE(dtype d):
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     goto __pyx_L0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":791
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
  * 
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":794
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":794
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":790
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":796
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":796
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":801
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":802
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":805
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":806
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
  * 
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":807
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":807
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     __pyx_t_4 = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":809
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":810
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":810
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":809
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
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  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":813
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
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  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
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     if (unlikely(__pyx_t_6)) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":814
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":814
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@@ -7860,7 +7861,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
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  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":824
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
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@@ -7885,7 +7886,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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       if (!__pyx_t_6) break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":825
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":825
  *         # Output padding bytes
  *         while offset[0] < new_offset:
  *             f[0] = 120 # "x"; pad byte             # <<<<<<<<<<<<<<
@@ -7894,7 +7895,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       (__pyx_v_f[0]) = 0x78;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":826
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":826
  *         while offset[0] < new_offset:
  *             f[0] = 120 # "x"; pad byte
  *             f += 1             # <<<<<<<<<<<<<<
@@ -7903,7 +7904,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":827
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
  *             f[0] = 120 # "x"; pad byte
  *             f += 1
  *             offset[0] += 1             # <<<<<<<<<<<<<<
@@ -7914,7 +7915,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + 1);
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":829
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":829
  *             offset[0] += 1
  * 
  *         offset[0] += child.itemsize             # <<<<<<<<<<<<<<
@@ -7924,7 +7925,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_8 = 0;
     (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + __pyx_v_child->elsize);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":831
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -7934,7 +7935,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = ((!(PyDataType_HASFIELDS(__pyx_v_child) != 0)) != 0);
     if (__pyx_t_6) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":832
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":832
  * 
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num             # <<<<<<<<<<<<<<
@@ -7946,7 +7947,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_XDECREF_SET(__pyx_v_t, __pyx_t_4);
       __pyx_t_4 = 0;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":833
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -7956,7 +7957,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __pyx_t_6 = (((__pyx_v_end - __pyx_v_f) < 5) != 0);
       if (unlikely(__pyx_t_6)) {
 
-        /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":834
+        /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
  *             t = child.type_num
  *             if end - f < 5:
  *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
@@ -7969,7 +7970,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         __PYX_ERR(1, 834, __pyx_L1_error)
 
-        /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":833
+        /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -7978,7 +7979,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":837
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
  * 
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"             # <<<<<<<<<<<<<<
@@ -7996,7 +7997,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":838
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":838
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"             # <<<<<<<<<<<<<<
@@ -8014,7 +8015,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":839
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":839
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"             # <<<<<<<<<<<<<<
@@ -8032,7 +8033,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":840
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":840
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"             # <<<<<<<<<<<<<<
@@ -8050,7 +8051,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":841
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":841
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"             # <<<<<<<<<<<<<<
@@ -8068,7 +8069,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":842
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"             # <<<<<<<<<<<<<<
@@ -8086,7 +8087,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":843
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":843
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"             # <<<<<<<<<<<<<<
@@ -8104,7 +8105,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":844
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":844
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"             # <<<<<<<<<<<<<<
@@ -8122,7 +8123,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":845
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":845
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"             # <<<<<<<<<<<<<<
@@ -8140,7 +8141,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":846
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":846
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"             # <<<<<<<<<<<<<<
@@ -8158,7 +8159,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":847
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":847
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"             # <<<<<<<<<<<<<<
@@ -8176,7 +8177,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":848
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":848
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"             # <<<<<<<<<<<<<<
@@ -8194,7 +8195,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":849
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":849
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"             # <<<<<<<<<<<<<<
@@ -8212,7 +8213,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":850
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":850
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf             # <<<<<<<<<<<<<<
@@ -8232,7 +8233,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":851
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd             # <<<<<<<<<<<<<<
@@ -8252,7 +8253,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":852
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":852
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg             # <<<<<<<<<<<<<<
@@ -8272,7 +8273,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":853
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":853
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"             # <<<<<<<<<<<<<<
@@ -8290,7 +8291,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":855
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -8309,7 +8310,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       }
       __pyx_L15:;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":856
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *             f += 1             # <<<<<<<<<<<<<<
@@ -8318,7 +8319,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":831
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -8328,7 +8329,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       goto __pyx_L13;
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":860
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":860
  *             # Cython ignores struct boundary information ("T{...}"),
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)             # <<<<<<<<<<<<<<
@@ -8341,7 +8342,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     }
     __pyx_L13:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":805
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
  *     cdef tuple fields
  * 
  *     for childname in descr.names:             # <<<<<<<<<<<<<<
@@ -8351,7 +8352,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":861
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":861
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)
  *     return f             # <<<<<<<<<<<<<<
@@ -8361,7 +8362,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   __pyx_r = __pyx_v_f;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":796
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":796
  *         return ()
  * 
  * cdef inline char* _util_dtypestring(dtype descr, char* f, char* end, int* offset) except NULL:             # <<<<<<<<<<<<<<
@@ -8386,7 +8387,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":977
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":977
  * 
  * 
  * cdef inline void set_array_base(ndarray arr, object base):             # <<<<<<<<<<<<<<
@@ -8401,7 +8402,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   int __pyx_t_2;
   __Pyx_RefNannySetupContext("set_array_base", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":979
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":979
  * cdef inline void set_array_base(ndarray arr, object base):
  *      cdef PyObject* baseptr
  *      if base is None:             # <<<<<<<<<<<<<<
@@ -8412,7 +8413,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":980
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":980
  *      cdef PyObject* baseptr
  *      if base is None:
  *          baseptr = NULL             # <<<<<<<<<<<<<<
@@ -8421,7 +8422,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
  */
     __pyx_v_baseptr = NULL;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":979
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":979
  * cdef inline void set_array_base(ndarray arr, object base):
  *      cdef PyObject* baseptr
  *      if base is None:             # <<<<<<<<<<<<<<
@@ -8431,7 +8432,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
     goto __pyx_L3;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":982
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":982
  *          baseptr = NULL
  *      else:
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@@ -8441,7 +8442,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":983
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":983
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@@ -8452,7 +8453,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":984
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":984
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":985
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":985
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":977
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":987
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":988
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":989
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":988
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":991
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":987
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":987
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  * cdef inline object get_array_base(ndarray arr):             # <<<<<<<<<<<<<<
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":996
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":996
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":998
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":998
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":999
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@@ -8630,7 +8631,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1000
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":996
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":996
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1002
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  * cdef inline int import_umath() except -1:             # <<<<<<<<<<<<<<
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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  * cdef inline int import_umath() except -1:
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1004
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1004
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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  * cdef inline int import_umath() except -1:
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1005
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@@ -8759,7 +8760,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1006
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1002
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1008
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1010
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1010
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       __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(1, 1010, __pyx_L3_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1011
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1012
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1008
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":229
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":233
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":233
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":263
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":263
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@@ -9136,7 +9137,7 @@ static int __Pyx_InitCachedConstants(void) {
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":810
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":810
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":814
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":814
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":834
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1000
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1000
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  *     except Exception:
  *         raise ImportError("numpy.core.multiarray failed to import")             # <<<<<<<<<<<<<<
@@ -9180,7 +9181,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__11);
   __Pyx_GIVEREF(__pyx_tuple__11);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1006
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1006
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -9191,7 +9192,7 @@ static int __Pyx_InitCachedConstants(void) {
   __Pyx_GOTREF(__pyx_tuple__12);
   __Pyx_GIVEREF(__pyx_tuple__12);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1012
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1012
  *         _import_umath()
  *     except Exception:
  *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
@@ -9387,7 +9388,7 @@ static int __Pyx_modinit_function_import_code(void) {
 #ifndef CYTHON_SMALL_CODE
 #if defined(__clang__)
     #define CYTHON_SMALL_CODE
-#elif defined(__GNUC__)
+#elif defined(__GNUC__) && (!(defined(__cplusplus)) || (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ > 4)))
     #define CYTHON_SMALL_CODE __attribute__((optimize("Os")))
 #else
     #define CYTHON_SMALL_CODE
@@ -9776,7 +9777,7 @@ if (!__Pyx_RefNanny) {
   if (PyDict_SetItem(__pyx_d, __pyx_n_s_test, __pyx_t_7) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
   __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1008
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1008
  *         raise ImportError("numpy.core.umath failed to import")
  * 
  * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
@@ -10575,7 +10576,7 @@ static CYTHON_INLINE void __Pyx_RaiseNoneNotIterableError(void) {
 /* SaveResetException */
 #if CYTHON_FAST_THREAD_STATE
 static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     *type = tstate->exc_state.exc_type;
     *value = tstate->exc_state.exc_value;
     *tb = tstate->exc_state.exc_traceback;
@@ -10590,7 +10591,7 @@ static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject *
 }
 static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
     PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -10674,7 +10675,7 @@ static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
     *value = local_value;
     *tb = local_tb;
 #if CYTHON_FAST_THREAD_STATE
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -10841,6 +10842,9 @@ static int __Pyx_CLineForTraceback(CYTHON_UNUSED PyThreadState *tstate, int c_li
 #if CYTHON_COMPILING_IN_CPYTHON
     PyObject **cython_runtime_dict;
 #endif
+    if (unlikely(!__pyx_cython_runtime)) {
+        return c_line;
+    }
     __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback);
 #if CYTHON_COMPILING_IN_CPYTHON
     cython_runtime_dict = _PyObject_GetDictPtr(__pyx_cython_runtime);
@@ -12523,14 +12527,42 @@ static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err,
     return res;
 }
 #endif
+static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    assert(PyExceptionClass_Check(exc_type));
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        PyObject *t = PyTuple_GET_ITEM(tuple, i);
+        #if PY_MAJOR_VERSION < 3
+        if (likely(exc_type == t)) return 1;
+        #endif
+        if (likely(PyExceptionClass_Check(t))) {
+            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
+        } else {
+        }
+    }
+    return 0;
+}
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
     if (likely(err == exc_type)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
-        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        if (likely(PyExceptionClass_Check(exc_type))) {
+            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        } else if (likely(PyTuple_Check(exc_type))) {
+            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
+        } else {
+        }
     }
     return PyErr_GivenExceptionMatches(err, exc_type);
 }
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
+    assert(PyExceptionClass_Check(exc_type1));
+    assert(PyExceptionClass_Check(exc_type2));
     if (likely(err == exc_type1 || err == exc_type2)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
         return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
@@ -13019,6 +13051,9 @@ static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
   Py_DECREF(x);
   return ival;
 }
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) {
+  return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False);
+}
 static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
     return PyInt_FromSize_t(ival);
 }
diff --git a/gensim/models/word2vec_corpusfile.cpp b/gensim/models/word2vec_corpusfile.cpp
index 78513c4aae..d18b9e5141 100644
--- a/gensim/models/word2vec_corpusfile.cpp
+++ b/gensim/models/word2vec_corpusfile.cpp
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.28.2 */
+/* Generated by Cython 0.28.4 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,7 +7,7 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_28_2"
+#define CYTHON_ABI "0_28_4"
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -467,6 +467,7 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define PyString_Type                PyUnicode_Type
   #define PyString_Check               PyUnicode_Check
   #define PyString_CheckExact          PyUnicode_CheckExact
+  #define PyObject_Unicode             PyObject_Str
 #endif
 #if PY_MAJOR_VERSION >= 3
   #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
@@ -673,7 +674,7 @@ static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) {
 #define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
 #define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
 #define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
-#define __Pyx_PyBool_FromLong(b) ((b) ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False))
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b);
 static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
 static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x);
 #define __Pyx_PySequence_Tuple(obj)\
@@ -781,7 +782,7 @@ static CYTHON_INLINE void __Pyx_pretend_to_initialize(void* ptr) { (void)ptr; }
 static PyObject *__pyx_m = NULL;
 static PyObject *__pyx_d;
 static PyObject *__pyx_b;
-static PyObject *__pyx_cython_runtime;
+static PyObject *__pyx_cython_runtime = NULL;
 static PyObject *__pyx_empty_tuple;
 static PyObject *__pyx_empty_bytes;
 static PyObject *__pyx_empty_unicode;
@@ -833,7 +834,7 @@ static const char *__pyx_f[] = {
 #define __Pyx_FastGilFuncInit()
 
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":730
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":730
  * # in Cython to enable them only on the right systems.
  * 
  * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
@@ -842,7 +843,7 @@ static const char *__pyx_f[] = {
  */
 typedef npy_int8 __pyx_t_5numpy_int8_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":731
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":731
  * 
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
@@ -851,7 +852,7 @@ typedef npy_int8 __pyx_t_5numpy_int8_t;
  */
 typedef npy_int16 __pyx_t_5numpy_int16_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":732
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":732
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
@@ -860,7 +861,7 @@ typedef npy_int16 __pyx_t_5numpy_int16_t;
  */
 typedef npy_int32 __pyx_t_5numpy_int32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":733
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":733
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t
  * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
@@ -869,7 +870,7 @@ typedef npy_int32 __pyx_t_5numpy_int32_t;
  */
 typedef npy_int64 __pyx_t_5numpy_int64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":737
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":737
  * #ctypedef npy_int128     int128_t
  * 
  * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
@@ -878,7 +879,7 @@ typedef npy_int64 __pyx_t_5numpy_int64_t;
  */
 typedef npy_uint8 __pyx_t_5numpy_uint8_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":738
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":738
  * 
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
@@ -887,7 +888,7 @@ typedef npy_uint8 __pyx_t_5numpy_uint8_t;
  */
 typedef npy_uint16 __pyx_t_5numpy_uint16_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":739
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":739
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
@@ -896,7 +897,7 @@ typedef npy_uint16 __pyx_t_5numpy_uint16_t;
  */
 typedef npy_uint32 __pyx_t_5numpy_uint32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":740
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":740
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t
  * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
@@ -905,7 +906,7 @@ typedef npy_uint32 __pyx_t_5numpy_uint32_t;
  */
 typedef npy_uint64 __pyx_t_5numpy_uint64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":744
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":744
  * #ctypedef npy_uint128    uint128_t
  * 
  * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
@@ -914,7 +915,7 @@ typedef npy_uint64 __pyx_t_5numpy_uint64_t;
  */
 typedef npy_float32 __pyx_t_5numpy_float32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":745
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":745
  * 
  * ctypedef npy_float32    float32_t
  * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
@@ -923,7 +924,7 @@ typedef npy_float32 __pyx_t_5numpy_float32_t;
  */
 typedef npy_float64 __pyx_t_5numpy_float64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":754
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":754
  * # The int types are mapped a bit surprising --
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
@@ -932,7 +933,7 @@ typedef npy_float64 __pyx_t_5numpy_float64_t;
  */
 typedef npy_long __pyx_t_5numpy_int_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":755
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":755
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
@@ -941,7 +942,7 @@ typedef npy_long __pyx_t_5numpy_int_t;
  */
 typedef npy_longlong __pyx_t_5numpy_long_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":756
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":756
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t
  * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
@@ -950,7 +951,7 @@ typedef npy_longlong __pyx_t_5numpy_long_t;
  */
 typedef npy_longlong __pyx_t_5numpy_longlong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":758
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":758
  * ctypedef npy_longlong   longlong_t
  * 
  * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
@@ -959,7 +960,7 @@ typedef npy_longlong __pyx_t_5numpy_longlong_t;
  */
 typedef npy_ulong __pyx_t_5numpy_uint_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":759
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":759
  * 
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
@@ -968,7 +969,7 @@ typedef npy_ulong __pyx_t_5numpy_uint_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":760
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":760
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t
  * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
@@ -977,7 +978,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":762
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":762
  * ctypedef npy_ulonglong  ulonglong_t
  * 
  * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
@@ -986,7 +987,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
  */
 typedef npy_intp __pyx_t_5numpy_intp_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":763
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":763
  * 
  * ctypedef npy_intp       intp_t
  * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
@@ -995,7 +996,7 @@ typedef npy_intp __pyx_t_5numpy_intp_t;
  */
 typedef npy_uintp __pyx_t_5numpy_uintp_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":765
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":765
  * ctypedef npy_uintp      uintp_t
  * 
  * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
@@ -1004,7 +1005,7 @@ typedef npy_uintp __pyx_t_5numpy_uintp_t;
  */
 typedef npy_double __pyx_t_5numpy_float_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":766
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":766
  * 
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
@@ -1013,7 +1014,7 @@ typedef npy_double __pyx_t_5numpy_float_t;
  */
 typedef npy_double __pyx_t_5numpy_double_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":767
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":767
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t
  * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
@@ -1069,7 +1070,7 @@ struct __pyx_obj_6gensim_6models_19word2vec_corpusfile_CythonLineSentence;
 struct __pyx_obj_6gensim_6models_19word2vec_corpusfile_CythonVocab;
 struct __pyx_obj_6gensim_6models_19word2vec_corpusfile___pyx_scope_struct____iter__;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":769
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":769
  * ctypedef npy_longdouble longdouble_t
  * 
  * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
@@ -1078,7 +1079,7 @@ struct __pyx_obj_6gensim_6models_19word2vec_corpusfile___pyx_scope_struct____ite
  */
 typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":770
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":770
  * 
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
@@ -1087,7 +1088,7 @@ typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":771
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":771
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t
  * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
@@ -1096,7 +1097,7 @@ typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
  */
 typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":773
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":773
  * ctypedef npy_clongdouble clongdouble_t
  * 
  * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
@@ -7184,7 +7185,7 @@ static PyObject *__pyx_pf_6gensim_6models_19word2vec_corpusfile_4train_epoch_cbo
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":215
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":215
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -7232,7 +7233,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_info->obj = Py_None; __Pyx_INCREF(Py_None);
   __Pyx_GIVEREF(__pyx_v_info->obj);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":222
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":222
  * 
  *             cdef int i, ndim
  *             cdef int endian_detector = 1             # <<<<<<<<<<<<<<
@@ -7241,7 +7242,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_endian_detector = 1;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":223
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":223
  *             cdef int i, ndim
  *             cdef int endian_detector = 1
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
@@ -7250,7 +7251,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":225
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":225
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
  * 
  *             ndim = PyArray_NDIM(self)             # <<<<<<<<<<<<<<
@@ -7259,7 +7260,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_ndim = PyArray_NDIM(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -7273,7 +7274,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L4_bool_binop_done;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":228
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":228
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_C_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -7284,7 +7285,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L4_bool_binop_done:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -7293,7 +7294,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":229
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":229
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_C_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
@@ -7306,7 +7307,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(3, 229, __pyx_L1_error)
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -7315,7 +7316,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -7329,7 +7330,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L7_bool_binop_done;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":232
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":232
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_F_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -7340,7 +7341,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L7_bool_binop_done:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -7349,7 +7350,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":233
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":233
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_F_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
@@ -7362,7 +7363,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(3, 233, __pyx_L1_error)
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -7371,7 +7372,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":235
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":235
  *                 raise ValueError(u"ndarray is not Fortran contiguous")
  * 
  *             info.buf = PyArray_DATA(self)             # <<<<<<<<<<<<<<
@@ -7380,7 +7381,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->buf = PyArray_DATA(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":236
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":236
  * 
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim             # <<<<<<<<<<<<<<
@@ -7389,7 +7390,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->ndim = __pyx_v_ndim;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":237
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":237
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -7399,7 +7400,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":240
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":240
  *                 # Allocate new buffer for strides and shape info.
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)             # <<<<<<<<<<<<<<
@@ -7408,7 +7409,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->strides = ((Py_ssize_t *)PyObject_Malloc((((sizeof(Py_ssize_t)) * 2) * ((size_t)__pyx_v_ndim))));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":241
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":241
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim             # <<<<<<<<<<<<<<
@@ -7417,7 +7418,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->shape = (__pyx_v_info->strides + __pyx_v_ndim);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":242
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":242
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -7429,7 +7430,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
       __pyx_v_i = __pyx_t_6;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":243
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":243
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]             # <<<<<<<<<<<<<<
@@ -7438,7 +7439,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
       (__pyx_v_info->strides[__pyx_v_i]) = (PyArray_STRIDES(__pyx_v_self)[__pyx_v_i]);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":244
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":244
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]
  *                     info.shape[i] = PyArray_DIMS(self)[i]             # <<<<<<<<<<<<<<
@@ -7448,7 +7449,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       (__pyx_v_info->shape[__pyx_v_i]) = (PyArray_DIMS(__pyx_v_self)[__pyx_v_i]);
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":237
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":237
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -7458,7 +7459,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L9;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":246
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":246
  *                     info.shape[i] = PyArray_DIMS(self)[i]
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)             # <<<<<<<<<<<<<<
@@ -7468,7 +7469,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->strides = ((Py_ssize_t *)PyArray_STRIDES(__pyx_v_self));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":247
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":247
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)             # <<<<<<<<<<<<<<
@@ -7479,7 +7480,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   }
   __pyx_L9:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":248
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":248
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL             # <<<<<<<<<<<<<<
@@ -7488,7 +7489,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->suboffsets = NULL;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":249
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":249
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)             # <<<<<<<<<<<<<<
@@ -7497,7 +7498,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->itemsize = PyArray_ITEMSIZE(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":250
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":250
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)
  *             info.readonly = not PyArray_ISWRITEABLE(self)             # <<<<<<<<<<<<<<
@@ -7506,7 +7507,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->readonly = (!(PyArray_ISWRITEABLE(__pyx_v_self) != 0));
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":253
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":253
  * 
  *             cdef int t
  *             cdef char* f = NULL             # <<<<<<<<<<<<<<
@@ -7515,7 +7516,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_f = NULL;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":254
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":254
  *             cdef int t
  *             cdef char* f = NULL
  *             cdef dtype descr = self.descr             # <<<<<<<<<<<<<<
@@ -7527,7 +7528,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_descr = ((PyArray_Descr *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":257
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":257
  *             cdef int offset
  * 
  *             info.obj = self             # <<<<<<<<<<<<<<
@@ -7540,7 +7541,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __Pyx_DECREF(__pyx_v_info->obj);
   __pyx_v_info->obj = ((PyObject *)__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":259
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":259
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -7550,7 +7551,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = ((!(PyDataType_HASFIELDS(__pyx_v_descr) != 0)) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":260
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":260
  * 
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num             # <<<<<<<<<<<<<<
@@ -7560,7 +7561,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_4 = __pyx_v_descr->type_num;
     __pyx_v_t = __pyx_t_4;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -7580,7 +7581,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     }
     __pyx_L15_next_or:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":262
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":262
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):             # <<<<<<<<<<<<<<
@@ -7597,7 +7598,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_1 = __pyx_t_2;
     __pyx_L14_bool_binop_done:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -7606,7 +7607,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     if (unlikely(__pyx_t_1)) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":263
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":263
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -7619,7 +7620,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(3, 263, __pyx_L1_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -7628,7 +7629,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":264
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":264
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"             # <<<<<<<<<<<<<<
@@ -7640,7 +7641,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"b");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":265
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"             # <<<<<<<<<<<<<<
@@ -7651,7 +7652,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"B");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":266
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"             # <<<<<<<<<<<<<<
@@ -7662,7 +7663,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"h");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":267
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":267
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"             # <<<<<<<<<<<<<<
@@ -7673,7 +7674,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"H");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":268
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"             # <<<<<<<<<<<<<<
@@ -7684,7 +7685,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"i");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":269
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":269
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"             # <<<<<<<<<<<<<<
@@ -7695,7 +7696,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"I");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":270
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"             # <<<<<<<<<<<<<<
@@ -7706,7 +7707,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"l");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":271
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"             # <<<<<<<<<<<<<<
@@ -7717,7 +7718,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"L");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":272
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"             # <<<<<<<<<<<<<<
@@ -7728,7 +7729,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"q");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":273
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":273
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"             # <<<<<<<<<<<<<<
@@ -7739,7 +7740,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Q");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":274
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"             # <<<<<<<<<<<<<<
@@ -7750,7 +7751,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"f");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":275
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":275
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"             # <<<<<<<<<<<<<<
@@ -7761,7 +7762,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"d");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":276
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"             # <<<<<<<<<<<<<<
@@ -7772,7 +7773,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"g");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":277
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":277
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"             # <<<<<<<<<<<<<<
@@ -7783,7 +7784,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zf");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":278
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":278
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"             # <<<<<<<<<<<<<<
@@ -7794,7 +7795,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zd");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":279
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":279
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"             # <<<<<<<<<<<<<<
@@ -7805,7 +7806,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zg");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":280
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"
  *                 elif t == NPY_OBJECT:      f = "O"             # <<<<<<<<<<<<<<
@@ -7817,7 +7818,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       default:
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":282
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":282
  *                 elif t == NPY_OBJECT:      f = "O"
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -7838,7 +7839,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":283
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":283
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f             # <<<<<<<<<<<<<<
@@ -7847,7 +7848,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->format = __pyx_v_f;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":284
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":284
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f
  *                 return             # <<<<<<<<<<<<<<
@@ -7857,7 +7858,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_r = 0;
     goto __pyx_L0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":259
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":259
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -7866,7 +7867,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":286
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":286
  *                 return
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)             # <<<<<<<<<<<<<<
@@ -7876,7 +7877,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->format = ((char *)PyObject_Malloc(0xFF));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":287
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":287
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment             # <<<<<<<<<<<<<<
@@ -7885,7 +7886,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     (__pyx_v_info->format[0]) = '^';
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":288
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":288
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0             # <<<<<<<<<<<<<<
@@ -7894,7 +7895,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_offset = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":289
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":289
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0
  *                 f = _util_dtypestring(descr, info.format + 1,             # <<<<<<<<<<<<<<
@@ -7904,7 +7905,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_8 = __pyx_f_5numpy__util_dtypestring(__pyx_v_descr, (__pyx_v_info->format + 1), (__pyx_v_info->format + 0xFF), (&__pyx_v_offset)); if (unlikely(__pyx_t_8 == ((char *)NULL))) __PYX_ERR(3, 289, __pyx_L1_error)
     __pyx_v_f = __pyx_t_8;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":292
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":292
  *                                       info.format + _buffer_format_string_len,
  *                                       &offset)
  *                 f[0] = c'\0' # Terminate format string             # <<<<<<<<<<<<<<
@@ -7914,7 +7915,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     (__pyx_v_f[0]) = '\x00';
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":215
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":215
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -7946,7 +7947,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":294
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":294
  *                 f[0] = c'\0' # Terminate format string
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
@@ -7970,7 +7971,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("__releasebuffer__", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":295
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":295
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
@@ -7980,7 +7981,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __pyx_t_1 = (PyArray_HASFIELDS(__pyx_v_self) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":296
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":296
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)             # <<<<<<<<<<<<<<
@@ -7989,7 +7990,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->format);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":295
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":295
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
@@ -7998,7 +7999,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":297
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -8008,7 +8009,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":298
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":298
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
  *                 PyObject_Free(info.strides)             # <<<<<<<<<<<<<<
@@ -8017,7 +8018,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->strides);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":297
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -8026,7 +8027,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":294
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":294
  *                 f[0] = c'\0' # Terminate format string
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
@@ -8038,7 +8039,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __Pyx_RefNannyFinishContext();
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":775
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":775
  * ctypedef npy_cdouble     complex_t
  * 
  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
@@ -8052,7 +8053,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew1", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":776
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
  * 
  * cdef inline object PyArray_MultiIterNew1(a):
  *     return PyArray_MultiIterNew(1, <void*>a)             # <<<<<<<<<<<<<<
@@ -8066,7 +8067,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":775
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":775
  * ctypedef npy_cdouble     complex_t
  * 
  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
@@ -8085,7 +8086,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":778
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
  *     return PyArray_MultiIterNew(1, <void*>a)
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -8099,7 +8100,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
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   __Pyx_RefNannySetupContext("PyArray_MultiIterNew2", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":779
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":779
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):
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@@ -8113,7 +8114,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":778
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
  *     return PyArray_MultiIterNew(1, <void*>a)
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -8132,7 +8133,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":781
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":781
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -8146,7 +8147,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
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   __Pyx_RefNannySetupContext("PyArray_MultiIterNew3", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":782
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":782
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)             # <<<<<<<<<<<<<<
@@ -8160,7 +8161,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":781
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":781
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -8179,7 +8180,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":784
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
@@ -8193,7 +8194,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":785
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)             # <<<<<<<<<<<<<<
@@ -8207,7 +8208,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":784
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
@@ -8226,7 +8227,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":787
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":787
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
@@ -8240,7 +8241,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":788
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":788
  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):
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@@ -8254,7 +8255,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":787
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":787
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
@@ -8273,7 +8274,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":790
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
  *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):             # <<<<<<<<<<<<<<
@@ -8287,7 +8288,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":791
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):
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@@ -8297,7 +8298,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
   __pyx_t_1 = (PyDataType_HASSUBARRAY(__pyx_v_d) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":792
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":792
  * cdef inline tuple PyDataType_SHAPE(dtype d):
  *     if PyDataType_HASSUBARRAY(d):
  *         return <tuple>d.subarray.shape             # <<<<<<<<<<<<<<
@@ -8309,7 +8310,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
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     goto __pyx_L0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":791
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):
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@@ -8318,7 +8319,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
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   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":794
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":794
  *         return <tuple>d.subarray.shape
  *     else:
  *         return ()             # <<<<<<<<<<<<<<
@@ -8332,7 +8333,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
     goto __pyx_L0;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":790
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
  *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)
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  * cdef inline tuple PyDataType_SHAPE(dtype d):             # <<<<<<<<<<<<<<
@@ -8347,7 +8348,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
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 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":796
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":796
  *         return ()
  * 
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@@ -8376,7 +8377,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":801
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":801
  * 
  *     cdef dtype child
  *     cdef int endian_detector = 1             # <<<<<<<<<<<<<<
@@ -8385,7 +8386,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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   __pyx_v_endian_detector = 1;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":802
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
  *     cdef dtype child
  *     cdef int endian_detector = 1
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@@ -8394,7 +8395,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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   __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":805
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
  *     cdef tuple fields
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  *     for childname in descr.names:             # <<<<<<<<<<<<<<
@@ -8417,7 +8418,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     __pyx_t_3 = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":806
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
  * 
  *     for childname in descr.names:
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@@ -8434,7 +8435,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     __pyx_t_3 = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":807
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":807
  *     for childname in descr.names:
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@@ -8469,7 +8470,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     __pyx_t_4 = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":809
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
  *         child, new_offset = fields
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:             # <<<<<<<<<<<<<<
@@ -8486,7 +8487,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     if (unlikely(__pyx_t_6)) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":810
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":810
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:
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@@ -8499,7 +8500,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":809
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
  *         child, new_offset = fields
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:             # <<<<<<<<<<<<<<
@@ -8508,7 +8509,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -8528,7 +8529,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     }
     __pyx_L8_next_or:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":813
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
  * 
  *         if ((child.byteorder == c'>' and little_endian) or
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@@ -8545,7 +8546,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     __pyx_L7_bool_binop_done:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -8554,7 +8555,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     if (unlikely(__pyx_t_6)) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":814
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":814
  *         if ((child.byteorder == c'>' and little_endian) or
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@@ -8567,7 +8568,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
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  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
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     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":824
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
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@@ -8592,7 +8593,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
       if (!__pyx_t_6) break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":825
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":825
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       (__pyx_v_f[0]) = 0x78;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":826
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":826
  *         while offset[0] < new_offset:
  *             f[0] = 120 # "x"; pad byte
  *             f += 1             # <<<<<<<<<<<<<<
@@ -8610,7 +8611,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":827
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
  *             f[0] = 120 # "x"; pad byte
  *             f += 1
  *             offset[0] += 1             # <<<<<<<<<<<<<<
@@ -8621,7 +8622,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":829
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":829
  *             offset[0] += 1
  * 
  *         offset[0] += child.itemsize             # <<<<<<<<<<<<<<
@@ -8631,7 +8632,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_8 = 0;
     (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + __pyx_v_child->elsize);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":831
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -8641,7 +8642,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = ((!(PyDataType_HASFIELDS(__pyx_v_child) != 0)) != 0);
     if (__pyx_t_6) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":832
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":832
  * 
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num             # <<<<<<<<<<<<<<
@@ -8653,7 +8654,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_XDECREF_SET(__pyx_v_t, __pyx_t_4);
       __pyx_t_4 = 0;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":833
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -8663,7 +8664,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __pyx_t_6 = (((__pyx_v_end - __pyx_v_f) < 5) != 0);
       if (unlikely(__pyx_t_6)) {
 
-        /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":834
+        /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
  *             t = child.type_num
  *             if end - f < 5:
  *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
@@ -8676,7 +8677,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         __PYX_ERR(3, 834, __pyx_L1_error)
 
-        /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":833
+        /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -8685,7 +8686,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":837
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
  * 
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"             # <<<<<<<<<<<<<<
@@ -8703,7 +8704,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":838
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":838
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"             # <<<<<<<<<<<<<<
@@ -8721,7 +8722,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":839
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":839
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"             # <<<<<<<<<<<<<<
@@ -8739,7 +8740,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":840
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":840
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"             # <<<<<<<<<<<<<<
@@ -8757,7 +8758,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":841
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":841
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"             # <<<<<<<<<<<<<<
@@ -8775,7 +8776,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":842
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"             # <<<<<<<<<<<<<<
@@ -8793,7 +8794,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":843
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":843
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"             # <<<<<<<<<<<<<<
@@ -8811,7 +8812,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":844
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":844
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"             # <<<<<<<<<<<<<<
@@ -8829,7 +8830,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":845
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":845
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"             # <<<<<<<<<<<<<<
@@ -8847,7 +8848,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":846
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":846
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"             # <<<<<<<<<<<<<<
@@ -8865,7 +8866,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":847
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":847
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"             # <<<<<<<<<<<<<<
@@ -8883,7 +8884,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":848
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":848
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"             # <<<<<<<<<<<<<<
@@ -8901,7 +8902,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":849
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":849
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"             # <<<<<<<<<<<<<<
@@ -8919,7 +8920,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":850
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":850
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf             # <<<<<<<<<<<<<<
@@ -8939,7 +8940,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":851
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd             # <<<<<<<<<<<<<<
@@ -8959,7 +8960,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":852
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":852
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg             # <<<<<<<<<<<<<<
@@ -8979,7 +8980,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":853
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":853
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"             # <<<<<<<<<<<<<<
@@ -8997,7 +8998,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":855
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -9016,7 +9017,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       }
       __pyx_L15:;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":856
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *             f += 1             # <<<<<<<<<<<<<<
@@ -9025,7 +9026,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":831
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -9035,7 +9036,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       goto __pyx_L13;
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":860
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":860
  *             # Cython ignores struct boundary information ("T{...}"),
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)             # <<<<<<<<<<<<<<
@@ -9048,7 +9049,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     }
     __pyx_L13:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":805
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
  *     cdef tuple fields
  * 
  *     for childname in descr.names:             # <<<<<<<<<<<<<<
@@ -9058,7 +9059,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":861
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":861
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)
  *     return f             # <<<<<<<<<<<<<<
@@ -9068,7 +9069,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   __pyx_r = __pyx_v_f;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":796
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":796
  *         return ()
  * 
  * cdef inline char* _util_dtypestring(dtype descr, char* f, char* end, int* offset) except NULL:             # <<<<<<<<<<<<<<
@@ -9093,7 +9094,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":977
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":977
  * 
  * 
  * cdef inline void set_array_base(ndarray arr, object base):             # <<<<<<<<<<<<<<
@@ -9108,7 +9109,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   int __pyx_t_2;
   __Pyx_RefNannySetupContext("set_array_base", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":979
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":979
  * cdef inline void set_array_base(ndarray arr, object base):
  *      cdef PyObject* baseptr
  *      if base is None:             # <<<<<<<<<<<<<<
@@ -9119,7 +9120,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":980
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":980
  *      cdef PyObject* baseptr
  *      if base is None:
  *          baseptr = NULL             # <<<<<<<<<<<<<<
@@ -9128,7 +9129,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
  */
     __pyx_v_baseptr = NULL;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":979
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":979
  * cdef inline void set_array_base(ndarray arr, object base):
  *      cdef PyObject* baseptr
  *      if base is None:             # <<<<<<<<<<<<<<
@@ -9138,7 +9139,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
     goto __pyx_L3;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":982
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":982
  *          baseptr = NULL
  *      else:
  *          Py_INCREF(base) # important to do this before decref below!             # <<<<<<<<<<<<<<
@@ -9148,7 +9149,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   /*else*/ {
     Py_INCREF(__pyx_v_base);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":983
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":983
  *      else:
  *          Py_INCREF(base) # important to do this before decref below!
  *          baseptr = <PyObject*>base             # <<<<<<<<<<<<<<
@@ -9159,7 +9160,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   }
   __pyx_L3:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":984
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":984
  *          Py_INCREF(base) # important to do this before decref below!
  *          baseptr = <PyObject*>base
  *      Py_XDECREF(arr.base)             # <<<<<<<<<<<<<<
@@ -9168,7 +9169,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
  */
   Py_XDECREF(__pyx_v_arr->base);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":985
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":985
  *          baseptr = <PyObject*>base
  *      Py_XDECREF(arr.base)
  *      arr.base = baseptr             # <<<<<<<<<<<<<<
@@ -9177,7 +9178,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
  */
   __pyx_v_arr->base = __pyx_v_baseptr;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":977
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":977
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":987
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":988
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":989
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":988
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":991
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":987
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":987
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  * cdef inline object get_array_base(ndarray arr):             # <<<<<<<<<<<<<<
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":996
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":998
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":998
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":999
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@@ -9337,7 +9338,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1000
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":996
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":996
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1002
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  * cdef inline int import_umath() except -1:             # <<<<<<<<<<<<<<
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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  * cdef inline int import_umath() except -1:
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@@ -9428,7 +9429,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1004
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1004
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       __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(3, 1004, __pyx_L3_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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  * cdef inline int import_umath() except -1:
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1005
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@@ -9466,7 +9467,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1006
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1006
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1002
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1008
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1010
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1010
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       __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(3, 1010, __pyx_L3_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1011
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1012
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1008
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":229
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":233
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":233
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   __Pyx_GIVEREF(__pyx_tuple__5);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":263
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":263
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@@ -10747,7 +10748,7 @@ static int __Pyx_InitCachedConstants(void) {
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":810
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":810
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":814
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":814
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":834
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
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@@ -10780,7 +10781,7 @@ static int __Pyx_InitCachedConstants(void) {
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   __Pyx_GIVEREF(__pyx_tuple__9);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1000
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1000
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1006
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1006
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1012
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1012
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 #ifndef CYTHON_SMALL_CODE
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     #define CYTHON_SMALL_CODE
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 static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     *type = tstate->exc_state.exc_type;
     *value = tstate->exc_state.exc_value;
     *tb = tstate->exc_state.exc_traceback;
@@ -12204,7 +12205,7 @@ static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject *
 }
 static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
     PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -12288,7 +12289,7 @@ static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
     *value = local_value;
     *tb = local_tb;
 #if CYTHON_FAST_THREAD_STATE
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -12541,6 +12542,9 @@ static int __Pyx_CLineForTraceback(CYTHON_UNUSED PyThreadState *tstate, int c_li
 #if CYTHON_COMPILING_IN_CPYTHON
     PyObject **cython_runtime_dict;
 #endif
+    if (unlikely(!__pyx_cython_runtime)) {
+        return c_line;
+    }
     __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback);
 #if CYTHON_COMPILING_IN_CPYTHON
     cython_runtime_dict = _PyObject_GetDictPtr(__pyx_cython_runtime);
@@ -14205,14 +14209,42 @@ static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err,
     return res;
 }
 #endif
+static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    assert(PyExceptionClass_Check(exc_type));
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        PyObject *t = PyTuple_GET_ITEM(tuple, i);
+        #if PY_MAJOR_VERSION < 3
+        if (likely(exc_type == t)) return 1;
+        #endif
+        if (likely(PyExceptionClass_Check(t))) {
+            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
+        } else {
+        }
+    }
+    return 0;
+}
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
     if (likely(err == exc_type)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
-        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        if (likely(PyExceptionClass_Check(exc_type))) {
+            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        } else if (likely(PyTuple_Check(exc_type))) {
+            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
+        } else {
+        }
     }
     return PyErr_GivenExceptionMatches(err, exc_type);
 }
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
+    assert(PyExceptionClass_Check(exc_type1));
+    assert(PyExceptionClass_Check(exc_type2));
     if (likely(err == exc_type1 || err == exc_type2)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
         return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
@@ -14264,7 +14296,7 @@ static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObj
       #if CYTHON_FAST_THREAD_STATE
 static CYTHON_INLINE void __Pyx__ExceptionSwap(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
     PyObject *tmp_type, *tmp_value, *tmp_tb;
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
     tmp_type = tstate->exc_state.exc_type;
     tmp_value = tstate->exc_state.exc_value;
     tmp_tb = tstate->exc_state.exc_traceback;
@@ -15726,6 +15758,9 @@ static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
   Py_DECREF(x);
   return ival;
 }
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) {
+  return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False);
+}
 static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
     return PyInt_FromSize_t(ival);
 }
diff --git a/gensim/models/word2vec_inner.c b/gensim/models/word2vec_inner.c
index 79ec298beb..94c1acd950 100644
--- a/gensim/models/word2vec_inner.c
+++ b/gensim/models/word2vec_inner.c
@@ -1,4 +1,4 @@
-/* Generated by Cython 0.28.2 */
+/* Generated by Cython 0.28.4 */
 
 #define PY_SSIZE_T_CLEAN
 #include "Python.h"
@@ -7,7 +7,7 @@
 #elif PY_VERSION_HEX < 0x02060000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
     #error Cython requires Python 2.6+ or Python 3.3+.
 #else
-#define CYTHON_ABI "0_28_2"
+#define CYTHON_ABI "0_28_4"
 #define CYTHON_FUTURE_DIVISION 0
 #include <stddef.h>
 #ifndef offsetof
@@ -453,6 +453,7 @@ static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
   #define PyString_Type                PyUnicode_Type
   #define PyString_Check               PyUnicode_Check
   #define PyString_CheckExact          PyUnicode_CheckExact
+  #define PyObject_Unicode             PyObject_Str
 #endif
 #if PY_MAJOR_VERSION >= 3
   #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
@@ -651,7 +652,7 @@ static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u) {
 #define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
 #define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
 #define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
-#define __Pyx_PyBool_FromLong(b) ((b) ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False))
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b);
 static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
 static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x);
 #define __Pyx_PySequence_Tuple(obj)\
@@ -759,7 +760,7 @@ static CYTHON_INLINE void __Pyx_pretend_to_initialize(void* ptr) { (void)ptr; }
 static PyObject *__pyx_m = NULL;
 static PyObject *__pyx_d;
 static PyObject *__pyx_b;
-static PyObject *__pyx_cython_runtime;
+static PyObject *__pyx_cython_runtime = NULL;
 static PyObject *__pyx_empty_tuple;
 static PyObject *__pyx_empty_bytes;
 static PyObject *__pyx_empty_unicode;
@@ -809,7 +810,7 @@ static const char *__pyx_f[] = {
 #endif
 
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":730
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":730
  * # in Cython to enable them only on the right systems.
  * 
  * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
@@ -818,7 +819,7 @@ static const char *__pyx_f[] = {
  */
 typedef npy_int8 __pyx_t_5numpy_int8_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":731
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":731
  * 
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
@@ -827,7 +828,7 @@ typedef npy_int8 __pyx_t_5numpy_int8_t;
  */
 typedef npy_int16 __pyx_t_5numpy_int16_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":732
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":732
  * ctypedef npy_int8       int8_t
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
@@ -836,7 +837,7 @@ typedef npy_int16 __pyx_t_5numpy_int16_t;
  */
 typedef npy_int32 __pyx_t_5numpy_int32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":733
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":733
  * ctypedef npy_int16      int16_t
  * ctypedef npy_int32      int32_t
  * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
@@ -845,7 +846,7 @@ typedef npy_int32 __pyx_t_5numpy_int32_t;
  */
 typedef npy_int64 __pyx_t_5numpy_int64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":737
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":737
  * #ctypedef npy_int128     int128_t
  * 
  * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
@@ -854,7 +855,7 @@ typedef npy_int64 __pyx_t_5numpy_int64_t;
  */
 typedef npy_uint8 __pyx_t_5numpy_uint8_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":738
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":738
  * 
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
@@ -863,7 +864,7 @@ typedef npy_uint8 __pyx_t_5numpy_uint8_t;
  */
 typedef npy_uint16 __pyx_t_5numpy_uint16_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":739
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":739
  * ctypedef npy_uint8      uint8_t
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
@@ -872,7 +873,7 @@ typedef npy_uint16 __pyx_t_5numpy_uint16_t;
  */
 typedef npy_uint32 __pyx_t_5numpy_uint32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":740
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":740
  * ctypedef npy_uint16     uint16_t
  * ctypedef npy_uint32     uint32_t
  * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
@@ -881,7 +882,7 @@ typedef npy_uint32 __pyx_t_5numpy_uint32_t;
  */
 typedef npy_uint64 __pyx_t_5numpy_uint64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":744
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":744
  * #ctypedef npy_uint128    uint128_t
  * 
  * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
@@ -890,7 +891,7 @@ typedef npy_uint64 __pyx_t_5numpy_uint64_t;
  */
 typedef npy_float32 __pyx_t_5numpy_float32_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":745
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":745
  * 
  * ctypedef npy_float32    float32_t
  * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
@@ -899,7 +900,7 @@ typedef npy_float32 __pyx_t_5numpy_float32_t;
  */
 typedef npy_float64 __pyx_t_5numpy_float64_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":754
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":754
  * # The int types are mapped a bit surprising --
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
@@ -908,7 +909,7 @@ typedef npy_float64 __pyx_t_5numpy_float64_t;
  */
 typedef npy_long __pyx_t_5numpy_int_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":755
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":755
  * # numpy.int corresponds to 'l' and numpy.long to 'q'
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t             # <<<<<<<<<<<<<<
@@ -917,7 +918,7 @@ typedef npy_long __pyx_t_5numpy_int_t;
  */
 typedef npy_longlong __pyx_t_5numpy_long_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":756
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":756
  * ctypedef npy_long       int_t
  * ctypedef npy_longlong   long_t
  * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
@@ -926,7 +927,7 @@ typedef npy_longlong __pyx_t_5numpy_long_t;
  */
 typedef npy_longlong __pyx_t_5numpy_longlong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":758
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":758
  * ctypedef npy_longlong   longlong_t
  * 
  * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
@@ -935,7 +936,7 @@ typedef npy_longlong __pyx_t_5numpy_longlong_t;
  */
 typedef npy_ulong __pyx_t_5numpy_uint_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":759
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":759
  * 
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t             # <<<<<<<<<<<<<<
@@ -944,7 +945,7 @@ typedef npy_ulong __pyx_t_5numpy_uint_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":760
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":760
  * ctypedef npy_ulong      uint_t
  * ctypedef npy_ulonglong  ulong_t
  * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
@@ -953,7 +954,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulong_t;
  */
 typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":762
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":762
  * ctypedef npy_ulonglong  ulonglong_t
  * 
  * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
@@ -962,7 +963,7 @@ typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;
  */
 typedef npy_intp __pyx_t_5numpy_intp_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":763
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":763
  * 
  * ctypedef npy_intp       intp_t
  * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
@@ -971,7 +972,7 @@ typedef npy_intp __pyx_t_5numpy_intp_t;
  */
 typedef npy_uintp __pyx_t_5numpy_uintp_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":765
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":765
  * ctypedef npy_uintp      uintp_t
  * 
  * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
@@ -980,7 +981,7 @@ typedef npy_uintp __pyx_t_5numpy_uintp_t;
  */
 typedef npy_double __pyx_t_5numpy_float_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":766
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":766
  * 
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
@@ -989,7 +990,7 @@ typedef npy_double __pyx_t_5numpy_float_t;
  */
 typedef npy_double __pyx_t_5numpy_double_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":767
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":767
  * ctypedef npy_double     float_t
  * ctypedef npy_double     double_t
  * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
@@ -1033,7 +1034,7 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
 
 /*--- Type declarations ---*/
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":769
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":769
  * ctypedef npy_longdouble longdouble_t
  * 
  * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
@@ -1042,7 +1043,7 @@ static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(do
  */
 typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":770
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":770
  * 
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
@@ -1051,7 +1052,7 @@ typedef npy_cfloat __pyx_t_5numpy_cfloat_t;
  */
 typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":771
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":771
  * ctypedef npy_cfloat      cfloat_t
  * ctypedef npy_cdouble     cdouble_t
  * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
@@ -1060,7 +1061,7 @@ typedef npy_cdouble __pyx_t_5numpy_cdouble_t;
  */
 typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":773
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":773
  * ctypedef npy_clongdouble clongdouble_t
  * 
  * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
@@ -8484,7 +8485,7 @@ static PyObject *__pyx_pf_6gensim_6models_14word2vec_inner_8init(CYTHON_UNUSED P
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":215
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":215
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -8532,7 +8533,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_info->obj = Py_None; __Pyx_INCREF(Py_None);
   __Pyx_GIVEREF(__pyx_v_info->obj);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":222
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":222
  * 
  *             cdef int i, ndim
  *             cdef int endian_detector = 1             # <<<<<<<<<<<<<<
@@ -8541,7 +8542,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_endian_detector = 1;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":223
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":223
  *             cdef int i, ndim
  *             cdef int endian_detector = 1
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)             # <<<<<<<<<<<<<<
@@ -8550,7 +8551,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":225
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":225
  *             cdef bint little_endian = ((<char*>&endian_detector)[0] != 0)
  * 
  *             ndim = PyArray_NDIM(self)             # <<<<<<<<<<<<<<
@@ -8559,7 +8560,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_ndim = PyArray_NDIM(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -8573,7 +8574,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L4_bool_binop_done;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":228
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":228
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_C_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -8584,7 +8585,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L4_bool_binop_done:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -8593,7 +8594,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":229
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":229
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_C_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not C contiguous")             # <<<<<<<<<<<<<<
@@ -8606,7 +8607,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 229, __pyx_L1_error)
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":227
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":227
  *             ndim = PyArray_NDIM(self)
  * 
  *             if ((flags & pybuf.PyBUF_C_CONTIGUOUS == pybuf.PyBUF_C_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -8615,7 +8616,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -8629,7 +8630,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L7_bool_binop_done;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":232
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":232
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_F_CONTIGUOUS)):             # <<<<<<<<<<<<<<
@@ -8640,7 +8641,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = __pyx_t_2;
   __pyx_L7_bool_binop_done:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -8649,7 +8650,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   if (unlikely(__pyx_t_1)) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":233
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":233
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)
  *                 and not PyArray_CHKFLAGS(self, NPY_F_CONTIGUOUS)):
  *                 raise ValueError(u"ndarray is not Fortran contiguous")             # <<<<<<<<<<<<<<
@@ -8662,7 +8663,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
     __PYX_ERR(1, 233, __pyx_L1_error)
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":231
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":231
  *                 raise ValueError(u"ndarray is not C contiguous")
  * 
  *             if ((flags & pybuf.PyBUF_F_CONTIGUOUS == pybuf.PyBUF_F_CONTIGUOUS)             # <<<<<<<<<<<<<<
@@ -8671,7 +8672,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":235
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":235
  *                 raise ValueError(u"ndarray is not Fortran contiguous")
  * 
  *             info.buf = PyArray_DATA(self)             # <<<<<<<<<<<<<<
@@ -8680,7 +8681,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->buf = PyArray_DATA(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":236
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":236
  * 
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim             # <<<<<<<<<<<<<<
@@ -8689,7 +8690,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->ndim = __pyx_v_ndim;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":237
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":237
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -8699,7 +8700,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":240
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":240
  *                 # Allocate new buffer for strides and shape info.
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)             # <<<<<<<<<<<<<<
@@ -8708,7 +8709,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->strides = ((Py_ssize_t *)PyObject_Malloc((((sizeof(Py_ssize_t)) * 2) * ((size_t)__pyx_v_ndim))));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":241
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":241
  *                 # This is allocated as one block, strides first.
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim             # <<<<<<<<<<<<<<
@@ -8717,7 +8718,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->shape = (__pyx_v_info->strides + __pyx_v_ndim);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":242
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":242
  *                 info.strides = <Py_ssize_t*>PyObject_Malloc(sizeof(Py_ssize_t) * 2 * <size_t>ndim)
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):             # <<<<<<<<<<<<<<
@@ -8729,7 +8730,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     for (__pyx_t_6 = 0; __pyx_t_6 < __pyx_t_5; __pyx_t_6+=1) {
       __pyx_v_i = __pyx_t_6;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":243
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":243
  *                 info.shape = info.strides + ndim
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]             # <<<<<<<<<<<<<<
@@ -8738,7 +8739,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
       (__pyx_v_info->strides[__pyx_v_i]) = (PyArray_STRIDES(__pyx_v_self)[__pyx_v_i]);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":244
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":244
  *                 for i in range(ndim):
  *                     info.strides[i] = PyArray_STRIDES(self)[i]
  *                     info.shape[i] = PyArray_DIMS(self)[i]             # <<<<<<<<<<<<<<
@@ -8748,7 +8749,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       (__pyx_v_info->shape[__pyx_v_i]) = (PyArray_DIMS(__pyx_v_self)[__pyx_v_i]);
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":237
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":237
  *             info.buf = PyArray_DATA(self)
  *             info.ndim = ndim
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -8758,7 +8759,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     goto __pyx_L9;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":246
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":246
  *                     info.shape[i] = PyArray_DIMS(self)[i]
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)             # <<<<<<<<<<<<<<
@@ -8768,7 +8769,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->strides = ((Py_ssize_t *)PyArray_STRIDES(__pyx_v_self));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":247
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":247
  *             else:
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)             # <<<<<<<<<<<<<<
@@ -8779,7 +8780,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   }
   __pyx_L9:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":248
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":248
  *                 info.strides = <Py_ssize_t*>PyArray_STRIDES(self)
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL             # <<<<<<<<<<<<<<
@@ -8788,7 +8789,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->suboffsets = NULL;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":249
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":249
  *                 info.shape = <Py_ssize_t*>PyArray_DIMS(self)
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)             # <<<<<<<<<<<<<<
@@ -8797,7 +8798,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->itemsize = PyArray_ITEMSIZE(__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":250
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":250
  *             info.suboffsets = NULL
  *             info.itemsize = PyArray_ITEMSIZE(self)
  *             info.readonly = not PyArray_ISWRITEABLE(self)             # <<<<<<<<<<<<<<
@@ -8806,7 +8807,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_info->readonly = (!(PyArray_ISWRITEABLE(__pyx_v_self) != 0));
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":253
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":253
  * 
  *             cdef int t
  *             cdef char* f = NULL             # <<<<<<<<<<<<<<
@@ -8815,7 +8816,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   __pyx_v_f = NULL;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":254
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":254
  *             cdef int t
  *             cdef char* f = NULL
  *             cdef dtype descr = self.descr             # <<<<<<<<<<<<<<
@@ -8827,7 +8828,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_v_descr = ((PyArray_Descr *)__pyx_t_3);
   __pyx_t_3 = 0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":257
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":257
  *             cdef int offset
  * 
  *             info.obj = self             # <<<<<<<<<<<<<<
@@ -8840,7 +8841,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __Pyx_DECREF(__pyx_v_info->obj);
   __pyx_v_info->obj = ((PyObject *)__pyx_v_self);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":259
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":259
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -8850,7 +8851,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   __pyx_t_1 = ((!(PyDataType_HASFIELDS(__pyx_v_descr) != 0)) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":260
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":260
  * 
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num             # <<<<<<<<<<<<<<
@@ -8860,7 +8861,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_4 = __pyx_v_descr->type_num;
     __pyx_v_t = __pyx_t_4;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -8880,7 +8881,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     }
     __pyx_L15_next_or:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":262
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":262
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):             # <<<<<<<<<<<<<<
@@ -8897,7 +8898,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_1 = __pyx_t_2;
     __pyx_L14_bool_binop_done:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -8906,7 +8907,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     if (unlikely(__pyx_t_1)) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":263
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":263
  *                 if ((descr.byteorder == c'>' and little_endian) or
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")             # <<<<<<<<<<<<<<
@@ -8919,7 +8920,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
       __PYX_ERR(1, 263, __pyx_L1_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":261
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":261
  *             if not PyDataType_HASFIELDS(descr):
  *                 t = descr.type_num
  *                 if ((descr.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -8928,7 +8929,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":264
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":264
  *                     (descr.byteorder == c'<' and not little_endian)):
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"             # <<<<<<<<<<<<<<
@@ -8940,7 +8941,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"b");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":265
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":265
  *                     raise ValueError(u"Non-native byte order not supported")
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"             # <<<<<<<<<<<<<<
@@ -8951,7 +8952,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"B");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":266
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":266
  *                 if   t == NPY_BYTE:        f = "b"
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"             # <<<<<<<<<<<<<<
@@ -8962,7 +8963,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"h");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":267
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":267
  *                 elif t == NPY_UBYTE:       f = "B"
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"             # <<<<<<<<<<<<<<
@@ -8973,7 +8974,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"H");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":268
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":268
  *                 elif t == NPY_SHORT:       f = "h"
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"             # <<<<<<<<<<<<<<
@@ -8984,7 +8985,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"i");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":269
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":269
  *                 elif t == NPY_USHORT:      f = "H"
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"             # <<<<<<<<<<<<<<
@@ -8995,7 +8996,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"I");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":270
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":270
  *                 elif t == NPY_INT:         f = "i"
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"             # <<<<<<<<<<<<<<
@@ -9006,7 +9007,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"l");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":271
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":271
  *                 elif t == NPY_UINT:        f = "I"
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"             # <<<<<<<<<<<<<<
@@ -9017,7 +9018,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"L");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":272
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":272
  *                 elif t == NPY_LONG:        f = "l"
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"             # <<<<<<<<<<<<<<
@@ -9028,7 +9029,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"q");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":273
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":273
  *                 elif t == NPY_ULONG:       f = "L"
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"             # <<<<<<<<<<<<<<
@@ -9039,7 +9040,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Q");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":274
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":274
  *                 elif t == NPY_LONGLONG:    f = "q"
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"             # <<<<<<<<<<<<<<
@@ -9050,7 +9051,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"f");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":275
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":275
  *                 elif t == NPY_ULONGLONG:   f = "Q"
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"             # <<<<<<<<<<<<<<
@@ -9061,7 +9062,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"d");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":276
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":276
  *                 elif t == NPY_FLOAT:       f = "f"
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"             # <<<<<<<<<<<<<<
@@ -9072,7 +9073,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"g");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":277
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":277
  *                 elif t == NPY_DOUBLE:      f = "d"
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"             # <<<<<<<<<<<<<<
@@ -9083,7 +9084,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zf");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":278
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":278
  *                 elif t == NPY_LONGDOUBLE:  f = "g"
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"             # <<<<<<<<<<<<<<
@@ -9094,7 +9095,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zd");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":279
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":279
  *                 elif t == NPY_CFLOAT:      f = "Zf"
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"             # <<<<<<<<<<<<<<
@@ -9105,7 +9106,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       __pyx_v_f = ((char *)"Zg");
       break;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":280
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":280
  *                 elif t == NPY_CDOUBLE:     f = "Zd"
  *                 elif t == NPY_CLONGDOUBLE: f = "Zg"
  *                 elif t == NPY_OBJECT:      f = "O"             # <<<<<<<<<<<<<<
@@ -9117,7 +9118,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
       default:
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":282
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":282
  *                 elif t == NPY_OBJECT:      f = "O"
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -9138,7 +9139,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
       break;
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":283
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":283
  *                 else:
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f             # <<<<<<<<<<<<<<
@@ -9147,7 +9148,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_info->format = __pyx_v_f;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":284
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":284
  *                     raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *                 info.format = f
  *                 return             # <<<<<<<<<<<<<<
@@ -9157,7 +9158,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_r = 0;
     goto __pyx_L0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":259
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":259
  *             info.obj = self
  * 
  *             if not PyDataType_HASFIELDS(descr):             # <<<<<<<<<<<<<<
@@ -9166,7 +9167,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":286
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":286
  *                 return
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)             # <<<<<<<<<<<<<<
@@ -9176,7 +9177,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   /*else*/ {
     __pyx_v_info->format = ((char *)PyObject_Malloc(0xFF));
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":287
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":287
  *             else:
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment             # <<<<<<<<<<<<<<
@@ -9185,7 +9186,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     (__pyx_v_info->format[0]) = '^';
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":288
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":288
  *                 info.format = <char*>PyObject_Malloc(_buffer_format_string_len)
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0             # <<<<<<<<<<<<<<
@@ -9194,7 +9195,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
  */
     __pyx_v_offset = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":289
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":289
  *                 info.format[0] = c'^' # Native data types, manual alignment
  *                 offset = 0
  *                 f = _util_dtypestring(descr, info.format + 1,             # <<<<<<<<<<<<<<
@@ -9204,7 +9205,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     __pyx_t_8 = __pyx_f_5numpy__util_dtypestring(__pyx_v_descr, (__pyx_v_info->format + 1), (__pyx_v_info->format + 0xFF), (&__pyx_v_offset)); if (unlikely(__pyx_t_8 == ((char *)NULL))) __PYX_ERR(1, 289, __pyx_L1_error)
     __pyx_v_f = __pyx_t_8;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":292
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":292
  *                                       info.format + _buffer_format_string_len,
  *                                       &offset)
  *                 f[0] = c'\0' # Terminate format string             # <<<<<<<<<<<<<<
@@ -9214,7 +9215,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
     (__pyx_v_f[0]) = '\x00';
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":215
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":215
  *         # experimental exception made for __getbuffer__ and __releasebuffer__
  *         # -- the details of this may change.
  *         def __getbuffer__(ndarray self, Py_buffer* info, int flags):             # <<<<<<<<<<<<<<
@@ -9246,7 +9247,7 @@ static int __pyx_pf_5numpy_7ndarray___getbuffer__(PyArrayObject *__pyx_v_self, P
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":294
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":294
  *                 f[0] = c'\0' # Terminate format string
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
@@ -9270,7 +9271,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("__releasebuffer__", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":295
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":295
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
@@ -9280,7 +9281,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __pyx_t_1 = (PyArray_HASFIELDS(__pyx_v_self) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":296
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":296
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)             # <<<<<<<<<<<<<<
@@ -9289,7 +9290,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->format);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":295
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":295
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):
  *             if PyArray_HASFIELDS(self):             # <<<<<<<<<<<<<<
@@ -9298,7 +9299,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":297
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -9308,7 +9309,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __pyx_t_1 = (((sizeof(npy_intp)) != (sizeof(Py_ssize_t))) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":298
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":298
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):
  *                 PyObject_Free(info.strides)             # <<<<<<<<<<<<<<
@@ -9317,7 +9318,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
     PyObject_Free(__pyx_v_info->strides);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":297
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":297
  *             if PyArray_HASFIELDS(self):
  *                 PyObject_Free(info.format)
  *             if sizeof(npy_intp) != sizeof(Py_ssize_t):             # <<<<<<<<<<<<<<
@@ -9326,7 +9327,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
  */
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":294
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":294
  *                 f[0] = c'\0' # Terminate format string
  * 
  *         def __releasebuffer__(ndarray self, Py_buffer* info):             # <<<<<<<<<<<<<<
@@ -9338,7 +9339,7 @@ static void __pyx_pf_5numpy_7ndarray_2__releasebuffer__(PyArrayObject *__pyx_v_s
   __Pyx_RefNannyFinishContext();
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":775
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":775
  * ctypedef npy_cdouble     complex_t
  * 
  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
@@ -9352,7 +9353,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew1", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":776
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":776
  * 
  * cdef inline object PyArray_MultiIterNew1(a):
  *     return PyArray_MultiIterNew(1, <void*>a)             # <<<<<<<<<<<<<<
@@ -9366,7 +9367,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":775
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":775
  * ctypedef npy_cdouble     complex_t
  * 
  * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
@@ -9385,7 +9386,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":778
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
  *     return PyArray_MultiIterNew(1, <void*>a)
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -9399,7 +9400,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   PyObject *__pyx_t_1 = NULL;
   __Pyx_RefNannySetupContext("PyArray_MultiIterNew2", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":779
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":779
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)             # <<<<<<<<<<<<<<
@@ -9413,7 +9414,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":778
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":778
  *     return PyArray_MultiIterNew(1, <void*>a)
  * 
  * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
@@ -9432,7 +9433,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":781
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":781
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -9446,7 +9447,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
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   __Pyx_RefNannySetupContext("PyArray_MultiIterNew3", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":782
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":782
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)             # <<<<<<<<<<<<<<
@@ -9460,7 +9461,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":781
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":781
  *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
  * 
  * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
@@ -9479,7 +9480,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":784
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
@@ -9493,7 +9494,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
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   __Pyx_RefNannySetupContext("PyArray_MultiIterNew4", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":785
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":785
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):
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@@ -9507,7 +9508,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":784
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":784
  *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
  * 
  * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
@@ -9526,7 +9527,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":787
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":787
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
@@ -9540,7 +9541,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":788
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":788
  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):
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@@ -9554,7 +9555,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
   __pyx_t_1 = 0;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":787
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":787
  *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
  * 
  * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
@@ -9573,7 +9574,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":790
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
  *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):             # <<<<<<<<<<<<<<
@@ -9587,7 +9588,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":791
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):
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@@ -9597,7 +9598,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
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   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":792
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":792
  * cdef inline tuple PyDataType_SHAPE(dtype d):
  *     if PyDataType_HASSUBARRAY(d):
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@@ -9609,7 +9610,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
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     goto __pyx_L0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":791
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":791
  * 
  * cdef inline tuple PyDataType_SHAPE(dtype d):
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@@ -9618,7 +9619,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":794
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":794
  *         return <tuple>d.subarray.shape
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  *         return ()             # <<<<<<<<<<<<<<
@@ -9632,7 +9633,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
     goto __pyx_L0;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":790
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":790
  *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)
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  * cdef inline tuple PyDataType_SHAPE(dtype d):             # <<<<<<<<<<<<<<
@@ -9647,7 +9648,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":796
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":796
  *         return ()
  * 
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@@ -9676,7 +9677,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":801
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":801
  * 
  *     cdef dtype child
  *     cdef int endian_detector = 1             # <<<<<<<<<<<<<<
@@ -9685,7 +9686,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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   __pyx_v_endian_detector = 1;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":802
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":802
  *     cdef dtype child
  *     cdef int endian_detector = 1
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@@ -9694,7 +9695,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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   __pyx_v_little_endian = ((((char *)(&__pyx_v_endian_detector))[0]) != 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":805
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
  *     cdef tuple fields
  * 
  *     for childname in descr.names:             # <<<<<<<<<<<<<<
@@ -9717,7 +9718,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     __pyx_t_3 = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":806
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":806
  * 
  *     for childname in descr.names:
  *         fields = descr.fields[childname]             # <<<<<<<<<<<<<<
@@ -9734,7 +9735,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     __pyx_t_3 = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":807
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":807
  *     for childname in descr.names:
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@@ -9769,7 +9770,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     __pyx_t_4 = 0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":809
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
  *         child, new_offset = fields
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:             # <<<<<<<<<<<<<<
@@ -9786,7 +9787,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     if (unlikely(__pyx_t_6)) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":810
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":810
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:
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@@ -9799,7 +9800,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":809
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":809
  *         child, new_offset = fields
  * 
  *         if (end - f) - <int>(new_offset - offset[0]) < 15:             # <<<<<<<<<<<<<<
@@ -9808,7 +9809,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
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  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -9828,7 +9829,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":813
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":813
  * 
  *         if ((child.byteorder == c'>' and little_endian) or
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@@ -9845,7 +9846,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
  * 
  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
@@ -9854,7 +9855,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     if (unlikely(__pyx_t_6)) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":814
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":814
  *         if ((child.byteorder == c'>' and little_endian) or
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@@ -9867,7 +9868,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":812
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":812
  *             raise RuntimeError(u"Format string allocated too short, see comment in numpy.pxd")
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  *         if ((child.byteorder == c'>' and little_endian) or             # <<<<<<<<<<<<<<
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     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":824
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":824
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@@ -9892,7 +9893,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":825
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":825
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":826
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":826
  *         while offset[0] < new_offset:
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@@ -9910,7 +9911,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":827
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":827
  *             f[0] = 120 # "x"; pad byte
  *             f += 1
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@@ -9921,7 +9922,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
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     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":829
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":829
  *             offset[0] += 1
  * 
  *         offset[0] += child.itemsize             # <<<<<<<<<<<<<<
@@ -9931,7 +9932,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_8 = 0;
     (__pyx_v_offset[__pyx_t_8]) = ((__pyx_v_offset[__pyx_t_8]) + __pyx_v_child->elsize);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":831
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -9941,7 +9942,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     __pyx_t_6 = ((!(PyDataType_HASFIELDS(__pyx_v_child) != 0)) != 0);
     if (__pyx_t_6) {
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":832
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":832
  * 
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num             # <<<<<<<<<<<<<<
@@ -9953,7 +9954,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __Pyx_XDECREF_SET(__pyx_v_t, __pyx_t_4);
       __pyx_t_4 = 0;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":833
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -9963,7 +9964,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       __pyx_t_6 = (((__pyx_v_end - __pyx_v_f) < 5) != 0);
       if (unlikely(__pyx_t_6)) {
 
-        /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":834
+        /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
  *             t = child.type_num
  *             if end - f < 5:
  *                 raise RuntimeError(u"Format string allocated too short.")             # <<<<<<<<<<<<<<
@@ -9976,7 +9977,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
         __PYX_ERR(1, 834, __pyx_L1_error)
 
-        /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":833
+        /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":833
  *         if not PyDataType_HASFIELDS(child):
  *             t = child.type_num
  *             if end - f < 5:             # <<<<<<<<<<<<<<
@@ -9985,7 +9986,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":837
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":837
  * 
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"             # <<<<<<<<<<<<<<
@@ -10003,7 +10004,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":838
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":838
  *             # Until ticket #99 is fixed, use integers to avoid warnings
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"             # <<<<<<<<<<<<<<
@@ -10021,7 +10022,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":839
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":839
  *             if   t == NPY_BYTE:        f[0] =  98 #"b"
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"             # <<<<<<<<<<<<<<
@@ -10039,7 +10040,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":840
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":840
  *             elif t == NPY_UBYTE:       f[0] =  66 #"B"
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"             # <<<<<<<<<<<<<<
@@ -10057,7 +10058,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":841
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":841
  *             elif t == NPY_SHORT:       f[0] = 104 #"h"
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"             # <<<<<<<<<<<<<<
@@ -10075,7 +10076,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":842
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":842
  *             elif t == NPY_USHORT:      f[0] =  72 #"H"
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"             # <<<<<<<<<<<<<<
@@ -10093,7 +10094,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":843
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":843
  *             elif t == NPY_INT:         f[0] = 105 #"i"
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"             # <<<<<<<<<<<<<<
@@ -10111,7 +10112,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":844
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":844
  *             elif t == NPY_UINT:        f[0] =  73 #"I"
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"             # <<<<<<<<<<<<<<
@@ -10129,7 +10130,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":845
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":845
  *             elif t == NPY_LONG:        f[0] = 108 #"l"
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"             # <<<<<<<<<<<<<<
@@ -10147,7 +10148,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":846
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":846
  *             elif t == NPY_ULONG:       f[0] = 76  #"L"
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"             # <<<<<<<<<<<<<<
@@ -10165,7 +10166,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":847
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":847
  *             elif t == NPY_LONGLONG:    f[0] = 113 #"q"
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"             # <<<<<<<<<<<<<<
@@ -10183,7 +10184,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":848
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":848
  *             elif t == NPY_ULONGLONG:   f[0] = 81  #"Q"
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"             # <<<<<<<<<<<<<<
@@ -10201,7 +10202,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":849
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":849
  *             elif t == NPY_FLOAT:       f[0] = 102 #"f"
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"             # <<<<<<<<<<<<<<
@@ -10219,7 +10220,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":850
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":850
  *             elif t == NPY_DOUBLE:      f[0] = 100 #"d"
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf             # <<<<<<<<<<<<<<
@@ -10239,7 +10240,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":851
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":851
  *             elif t == NPY_LONGDOUBLE:  f[0] = 103 #"g"
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd             # <<<<<<<<<<<<<<
@@ -10259,7 +10260,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":852
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":852
  *             elif t == NPY_CFLOAT:      f[0] = 90; f[1] = 102; f += 1 # Zf
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg             # <<<<<<<<<<<<<<
@@ -10279,7 +10280,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":853
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":853
  *             elif t == NPY_CDOUBLE:     f[0] = 90; f[1] = 100; f += 1 # Zd
  *             elif t == NPY_CLONGDOUBLE: f[0] = 90; f[1] = 103; f += 1 # Zg
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"             # <<<<<<<<<<<<<<
@@ -10297,7 +10298,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
         goto __pyx_L15;
       }
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":855
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":855
  *             elif t == NPY_OBJECT:      f[0] = 79 #"O"
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)             # <<<<<<<<<<<<<<
@@ -10316,7 +10317,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       }
       __pyx_L15:;
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":856
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":856
  *             else:
  *                 raise ValueError(u"unknown dtype code in numpy.pxd (%d)" % t)
  *             f += 1             # <<<<<<<<<<<<<<
@@ -10325,7 +10326,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
  */
       __pyx_v_f = (__pyx_v_f + 1);
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":831
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":831
  *         offset[0] += child.itemsize
  * 
  *         if not PyDataType_HASFIELDS(child):             # <<<<<<<<<<<<<<
@@ -10335,7 +10336,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
       goto __pyx_L13;
     }
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":860
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":860
  *             # Cython ignores struct boundary information ("T{...}"),
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)             # <<<<<<<<<<<<<<
@@ -10348,7 +10349,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
     }
     __pyx_L13:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":805
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":805
  *     cdef tuple fields
  * 
  *     for childname in descr.names:             # <<<<<<<<<<<<<<
@@ -10358,7 +10359,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   }
   __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":861
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":861
  *             # so don't output it
  *             f = _util_dtypestring(child, f, end, offset)
  *     return f             # <<<<<<<<<<<<<<
@@ -10368,7 +10369,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   __pyx_r = __pyx_v_f;
   goto __pyx_L0;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":796
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":796
  *         return ()
  * 
  * cdef inline char* _util_dtypestring(dtype descr, char* f, char* end, int* offset) except NULL:             # <<<<<<<<<<<<<<
@@ -10393,7 +10394,7 @@ static CYTHON_INLINE char *__pyx_f_5numpy__util_dtypestring(PyArray_Descr *__pyx
   return __pyx_r;
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":977
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":977
  * 
  * 
  * cdef inline void set_array_base(ndarray arr, object base):             # <<<<<<<<<<<<<<
@@ -10408,7 +10409,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   int __pyx_t_2;
   __Pyx_RefNannySetupContext("set_array_base", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":979
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":979
  * cdef inline void set_array_base(ndarray arr, object base):
  *      cdef PyObject* baseptr
  *      if base is None:             # <<<<<<<<<<<<<<
@@ -10419,7 +10420,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   __pyx_t_2 = (__pyx_t_1 != 0);
   if (__pyx_t_2) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":980
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":980
  *      cdef PyObject* baseptr
  *      if base is None:
  *          baseptr = NULL             # <<<<<<<<<<<<<<
@@ -10428,7 +10429,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
  */
     __pyx_v_baseptr = NULL;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":979
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":979
  * cdef inline void set_array_base(ndarray arr, object base):
  *      cdef PyObject* baseptr
  *      if base is None:             # <<<<<<<<<<<<<<
@@ -10438,7 +10439,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
     goto __pyx_L3;
   }
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":982
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":982
  *          baseptr = NULL
  *      else:
  *          Py_INCREF(base) # important to do this before decref below!             # <<<<<<<<<<<<<<
@@ -10448,7 +10449,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   /*else*/ {
     Py_INCREF(__pyx_v_base);
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":983
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":983
  *      else:
  *          Py_INCREF(base) # important to do this before decref below!
  *          baseptr = <PyObject*>base             # <<<<<<<<<<<<<<
@@ -10459,7 +10460,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   }
   __pyx_L3:;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":984
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":984
  *          Py_INCREF(base) # important to do this before decref below!
  *          baseptr = <PyObject*>base
  *      Py_XDECREF(arr.base)             # <<<<<<<<<<<<<<
@@ -10468,7 +10469,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
  */
   Py_XDECREF(__pyx_v_arr->base);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":985
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":985
  *          baseptr = <PyObject*>base
  *      Py_XDECREF(arr.base)
  *      arr.base = baseptr             # <<<<<<<<<<<<<<
@@ -10477,7 +10478,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
  */
   __pyx_v_arr->base = __pyx_v_baseptr;
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":977
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":977
  * 
  * 
  * cdef inline void set_array_base(ndarray arr, object base):             # <<<<<<<<<<<<<<
@@ -10489,7 +10490,7 @@ static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_a
   __Pyx_RefNannyFinishContext();
 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":987
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":987
  *      arr.base = baseptr
  * 
  * cdef inline object get_array_base(ndarray arr):             # <<<<<<<<<<<<<<
@@ -10503,7 +10504,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
   int __pyx_t_1;
   __Pyx_RefNannySetupContext("get_array_base", 0);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":988
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":988
  * 
  * cdef inline object get_array_base(ndarray arr):
  *     if arr.base is NULL:             # <<<<<<<<<<<<<<
@@ -10513,7 +10514,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
   __pyx_t_1 = ((__pyx_v_arr->base == NULL) != 0);
   if (__pyx_t_1) {
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":989
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":989
  * cdef inline object get_array_base(ndarray arr):
  *     if arr.base is NULL:
  *         return None             # <<<<<<<<<<<<<<
@@ -10524,7 +10525,7 @@ static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__py
     __pyx_r = Py_None; __Pyx_INCREF(Py_None);
     goto __pyx_L0;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":988
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":988
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":991
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":991
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":987
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":987
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":996
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":996
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@@ -10583,7 +10584,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":997
  * # Cython code.
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":998
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":998
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":997
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":999
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":999
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@@ -10637,7 +10638,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1000
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1000
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":997
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":997
  * # Cython code.
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":996
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":996
  * # Versions of the import_* functions which are more suitable for
  * # Cython code.
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@@ -10691,7 +10692,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
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 }
 
-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1002
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1002
  *         raise ImportError("numpy.core.multiarray failed to import")
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  * cdef inline int import_umath() except -1:             # <<<<<<<<<<<<<<
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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  * cdef inline int import_umath() except -1:
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@@ -10728,7 +10729,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
     __Pyx_XGOTREF(__pyx_t_3);
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1004
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1004
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@@ -10737,7 +10738,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
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       __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(1, 1004, __pyx_L3_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1005
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1005
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@@ -10766,7 +10767,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1006
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1006
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-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1003
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1003
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  * cdef inline int import_umath() except -1:
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1002
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1002
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  * cdef inline int import_umath() except -1:             # <<<<<<<<<<<<<<
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-/* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1008
+/* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1008
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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  * cdef inline int import_ufunc() except -1:
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@@ -10857,7 +10858,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1010
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1010
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@@ -10866,7 +10867,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
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       __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(1, 1010, __pyx_L3_error)
 
-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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@@ -10880,7 +10881,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
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     __pyx_L3_error:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1011
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1011
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@@ -10894,7 +10895,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
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-      /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1012
+      /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1012
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@@ -10908,7 +10909,7 @@ static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
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     __pyx_L5_except_error:;
 
-    /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1009
+    /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1009
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  * cdef inline int import_ufunc() except -1:
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1008
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":229
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   __Pyx_GIVEREF(__pyx_tuple__3);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":233
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":233
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@@ -11132,7 +11133,7 @@ static int __Pyx_InitCachedConstants(void) {
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   __Pyx_GIVEREF(__pyx_tuple__4);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":263
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":263
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@@ -11143,7 +11144,7 @@ static int __Pyx_InitCachedConstants(void) {
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":810
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":810
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   __Pyx_GIVEREF(__pyx_tuple__6);
 
-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":814
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":814
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":834
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":834
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1000
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1000
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1006
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1006
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1012
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1012
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 #ifndef CYTHON_SMALL_CODE
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     #define CYTHON_SMALL_CODE
-#elif defined(__GNUC__)
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-  /* "../anaconda3/lib/python3.6/site-packages/Cython/Includes/numpy/__init__.pxd":1008
+  /* "../../.virtualenvs/math/local/lib/python2.7/site-packages/Cython/Includes/numpy/__init__.pxd":1008
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 static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
-    #if PY_VERSION_HEX >= 0x030700A2
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-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
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     *value = local_value;
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 #if CYTHON_FAST_THREAD_STATE
-    #if PY_VERSION_HEX >= 0x030700A2
+    #if PY_VERSION_HEX >= 0x030700A3
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+    if (unlikely(!__pyx_cython_runtime)) {
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     __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback);
 #if CYTHON_COMPILING_IN_CPYTHON
     cython_runtime_dict = _PyObject_GetDictPtr(__pyx_cython_runtime);
@@ -14685,14 +14689,42 @@ static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err,
     return res;
 }
 #endif
+static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
+    Py_ssize_t i, n;
+    assert(PyExceptionClass_Check(exc_type));
+    n = PyTuple_GET_SIZE(tuple);
+#if PY_MAJOR_VERSION >= 3
+    for (i=0; i<n; i++) {
+        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
+    }
+#endif
+    for (i=0; i<n; i++) {
+        PyObject *t = PyTuple_GET_ITEM(tuple, i);
+        #if PY_MAJOR_VERSION < 3
+        if (likely(exc_type == t)) return 1;
+        #endif
+        if (likely(PyExceptionClass_Check(t))) {
+            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
+        } else {
+        }
+    }
+    return 0;
+}
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
     if (likely(err == exc_type)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
-        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        if (likely(PyExceptionClass_Check(exc_type))) {
+            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
+        } else if (likely(PyTuple_Check(exc_type))) {
+            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
+        } else {
+        }
     }
     return PyErr_GivenExceptionMatches(err, exc_type);
 }
 static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
+    assert(PyExceptionClass_Check(exc_type1));
+    assert(PyExceptionClass_Check(exc_type2));
     if (likely(err == exc_type1 || err == exc_type2)) return 1;
     if (likely(PyExceptionClass_Check(err))) {
         return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
@@ -15109,6 +15141,9 @@ static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
   Py_DECREF(x);
   return ival;
 }
+static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) {
+  return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False);
+}
 static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
     return PyInt_FromSize_t(ival);
 }