Merge pull request #338 from vidartf/traitlets5

fix traitlets5 compat

Author: vidartf

.travis.yml

@@ -1,17 +1,17 @@
 language: python
 python:
+  - 3.9
+  - 3.8
   - 3.7
   - 3.6
-  - 3.5
-  - 2.7
 sudo: false
 dist: xenial
 env:
   matrix:
     - GROUP=python
 matrix:
   include:
-    - python: 3.5
+    - python: 3.9
       env: GROUP=docs
       addons:
         apt:

docs/sphinxext/autodoc_traits.py

@@ -78,7 +78,7 @@ def format_name(self):
         return self.objpath[-1]
 
     def add_directive_header(self, sig):
-        default = self.object.get_default_value()
+        default = self.object.default_value
         if default is Undefined:
             default_s = ''
         else:

pythreejs/traits.py

@@ -45,6 +45,8 @@ def __init__(self, trait=Undefined, default_value=Undefined, **kwargs):
             trait = CFloat()
         if default_value is Undefined:
             default_value = self.default_value
+        else:
+            self.default_value = default_value
         super(Vector2, self).__init__(*(trait, trait), default_value=default_value, **kwargs)
 
 
@@ -60,6 +62,8 @@ def __init__(self, trait=Undefined, default_value=Undefined, **kwargs):
             trait = CFloat()
         if default_value is Undefined:
             default_value = self.default_value
+        else:
+            self.default_value = default_value
         super(Vector3, self).__init__(*(trait, trait, trait), default_value=default_value, **kwargs)
 
 
@@ -75,6 +79,8 @@ def __init__(self, trait=Undefined, default_value=Undefined, **kwargs):
             trait = CFloat()
         if default_value is Undefined:
             default_value = self.default_value
+        else:
+            self.default_value = default_value
         super(Vector4, self).__init__(*(trait, trait, trait, trait), default_value=default_value, **kwargs)
 
 
@@ -94,6 +100,8 @@ def __init__(self, trait=Undefined, default_value=Undefined, **kwargs):
             trait = CFloat()
         if default_value is Undefined:
             default_value = self.default_value
+        else:
+            self.default_value = default_value
         super(Matrix3, self).__init__(*((trait,) * 9), default_value=default_value, **kwargs)
 
 
@@ -114,6 +122,8 @@ def __init__(self, trait=Undefined, default_value=Undefined, **kwargs):
             trait = CFloat()
         if default_value is Undefined:
             default_value = self.default_value
+        else:
+            self.default_value = default_value
         super(Matrix4, self).__init__(*((trait,) * 16), default_value=default_value, **kwargs)
 
 
@@ -161,6 +171,8 @@ class Euler(Tuple):
     def __init__(self, default_value=Undefined, **kwargs):
         if default_value is Undefined:
             default_value = self.default_value
+        else:
+            self.default_value = default_value
         super(Euler, self).__init__(
             CFloat(), CFloat(), CFloat(),
             Enum(self._accepted_orders, self._accepted_orders[0]),