Merge pull request #5 from yahoo/remove-packaging-dep

Remove 'packaging' as dependency

.travis.yml

@@ -7,6 +7,7 @@ python:
 
 install:
   - pip install sphinx_rtd_theme codecov packaging
+  - "python -c $'import os, packaging.version as version\\nv = version.parse(os.environ.get(\"TRAVIS_TAG\", \"1.0\")).public\\nwith open(\"VERSION\", \"w\") as f: f.write(v)'"
   - python setup.py install
   - cd docs
   - make clean html

MANIFEST.in

@@ -0,0 +1 @@
+include VERSION

setup.py

@@ -3,8 +3,6 @@
 # Licensed under the terms of the Apache License, Version 2.0. See the LICENSE file associated with the project for terms.
 
 import os
-import packaging.version as version
-
 from setuptools import setup
 
 LONG_DESCRIPTION = """
@@ -16,11 +14,14 @@
 """
 
 # Grab the version as the tag name from the Travis build, or else use a default.
-VERSION = os.environ.get('TRAVIS_TAG', '1.0')
+if os.path.isfile('VERSION'):
+     VERSION = open('VERSION').read()
+else:
+     VERSION = os.environ.get('TRAVIS_TAG', '1.0')
 
 setup(
      name='graphkit',
-     version=version.parse(VERSION).public,
+     version=VERSION,
      description='Lightweight computation graphs for Python',
      long_description=LONG_DESCRIPTION,
      author='Huy Nguyen, Arel Cordero, Pierre Garrigues, Rob Hess, Tobi Baumgartner, Clayton Mellina',