When I try to use a Python application that depends on python-docker-py (or python3-docker-py) and uses setuptools entry point for its binary, I get this error (using atomic-reactor [1]):

Traceback (most recent call last):
  File "/usr/bin/atomic-reactor2", line 5, in <module>
    from pkg_resources import load_entry_point
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3084, in <module>
    @_call_aside
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3070, in _call_aside
    f(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 3097, in _initialize_master_working_set
    working_set = WorkingSet._build_master()
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 653, in _build_master
    return cls._build_from_requirements(__requires__)
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 666, in _build_from_requirements
    dists = ws.resolve(reqs, Environment())
  File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 839, in resolve
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'websocket-client>=0.32.0' distribution was not found and is required by docker-py

So the problem is that Fedora's python-websocket-client is too old. I'll open another bug for python-websocket-client to update, but I think there's also a problem in python-docker-py that should be solved.
Either python-docker-py should use proper python-websocket-client version in specfile, like "Requires: python-websocket-client >= 0.32.0" or "/usr/lib/python2.7/site-packages/docker_py-1.3.0-py2.7.egg-info/requires.txt" should be patched to not require that specific version (assuming the package can work with older versions).

[1] https://github.com/projectatomic/atomic-reactor