Description:

Starting mitmproxy spit the following error :

Traceback (most recent call last):
File "/usr/bin/mitmproxy", line 5, in <module>
from pkg_resources import load_entry_point
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2900, in <module>
@_call_aside
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2886, in _call_aside
f(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 2913, in _initialize_master_working_set
working_set = WorkingSet._build_master()
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 637, in _build_master
return cls._build_from_requirements(__requires__)
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 650, in _build_from_requirements
dists = ws.resolve(reqs, Environment())
File "/usr/lib/python2.7/site-packages/pkg_resources/__init__.py", line 829, in resolve
raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'Pillow<3.2,>=3.1' distribution was not found and is required by mitmproxy

This appeared since the latest update of Pillow to 3.2.0 in community.

As of now, mitmproxy didn't release a new version including their new dependencies, which are updated upstream on master.

Additional info:
* package version(s) : 0.16-3


Steps to reproduce: