On Mon, Sep 21, 2015 at 5:30 AM, OmPs <torque.india at gmail.com> wrote: > It says no matching distribution, but at pypi repo I am able to see it. > > https://pypi.python.org/pypi/atfork/0.1.2 That has a version number of zero. I think that might count as a pre-release version, so you need the --pre option to pip or it won't install. ChrisA