Complete output from command python setup.py egg_info:
Error initializing standard platform: Cannot use unix platform on non-file-like stream
/usr/lib/python2.7/distutils/dist.py:267: UserWarning: Unknown distribution option: 'python_requires'
warnings.warn(msg)
warning: no previously-included files matching '*.pyc' found anywhere in distribution
no previously-included directories found matching 'docs/build/'
zip_safe flag not set; analyzing archive contents...