chore(dev): consolidate requirements to setup.py

DEVELOPMENT.md

@@ -3,18 +3,12 @@
 We need to clone the project and prepare the dev environment:
 
 ```bash
-$ git clone https://github.com/manrajgrover/halo.git // or using ssh: [email protected]:manrajgrover/halo.git
+$ git clone https://github.com/manrajgrover/halo.git  # or using ssh: [email protected]:manrajgrover/halo.git
 $ cd halo
-$ pip install -e .
+$ pip install -e requirements.dev.txt
 ```
 
-This will install all requirements to use `halo`. You may want to create a virtual environment specifically for this.
-
-To install development dependencies, run:
-
-```bash
-$ pip install -r requirements-dev.txt
-```
+This will install all requirements to use and develop `halo`. You may want to create a virtual environment specifically for this.
 
 #### Testing
 Before submitting a pull request, make sure the code passes all the tests and is clean of lint errors:
@@ -27,15 +21,15 @@ To run tests for specific environment, run:
 
 1. For Python 2.7:
 
-```bash
-$ tox -e py27
-```
+    ```bash
+    $ tox -e py27
+    ```
 
 2. For Python 3.6:
 
-```bash
-$ tox -e py36
-```
+    ```bash
+    $ tox -e py36
+    ```
 
 For checking lint issues:
 

requirements-dev.txt

@@ -1,4 +1 @@
-coverage==4.4.1
-nose==1.3.7
-pylint==1.7.2
-tox==2.8.2
+--editable .[dev]

requirements.txt

@@ -1,7 +1 @@
-backports.shutil_get_terminal_size==1.0.0;python_version < '3.3'
-log_symbols==0.0.11
-spinners==0.0.23
-cursor==1.2.0
-termcolor==1.1.0
-colorama==0.3.9
-six==1.11.0
+--editable .

setup.py

@@ -1,14 +1,10 @@
 from setuptools import setup, find_packages  # pylint: disable=no-name-in-module,import-error
 
 
-def dependencies(file):
-    with open(file) as f:
-        return f.read().splitlines()
-
-
 setup(
     name='halo',
     packages=find_packages(exclude=('tests', 'examples')),
+    include_package_data=True,
     version='0.0.18',
     license='MIT',
     description='Beautiful terminal spinners in Python',
@@ -17,26 +13,44 @@ def dependencies(file):
     author_email='[email protected]',
     url='https://github.com/manrajgrover/halo',
     keywords=[
-        "console",
-        "loading",
-        "indicator",
-        "progress",
-        "cli",
-        "spinner",
-        "spinners",
-        "terminal",
-        "term",
-        "busy",
-        "wait",
-        "idle"
+        'console',
+        'loading',
+        'indicator',
+        'progress',
+        'cli',
+        'spinner',
+        'spinners',
+        'terminal',
+        'term',
+        'busy',
+        'wait',
+        'idle',
+    ],
+    install_requires=[
+        'backports.shutil_get_terminal_size==1.0.0;python_version < "3.3"',
+        'log_symbols==0.0.11',
+        'spinners==0.0.23',
+        'cursor==1.2.0',
+        'termcolor==1.1.0',
+        'colorama==0.3.9',
+        'six==1.11.0',
     ],
-    install_requires=dependencies('requirements.txt'),
-    tests_require=dependencies('requirements-dev.txt'),
-    include_package_data=True,
     extras_require={
         'ipython': [
             'IPython==5.7.0',
             'ipywidgets==7.1.0',
-        ]
-    }
+        ],
+        'test': [
+            'coverage==4.4.1',
+            'nose==1.3.7',
+            'pylint==1.7.2',
+            'tox==2.8.2',
+        ],
+        'dev': [
+            'halo[test,ipython]',
+        ],
+    },
+    tests_require=[
+        'halo[test]',
+    ],
 )

tox.ini

@@ -10,10 +10,9 @@ skip_missing_interpreters =
     True
 
 [testenv]
-deps =
-    -r{toxinidir}/requirements.txt
-    -r{toxinidir}/requirements-dev.txt
-extras=ipython
+extras=
+    test
+    ipython
 recreate =
     True
 setenv =