Fix IOError: [Errno 2] No such file or directory error for appdirs

Appdirs is a small Python module for determining appropriate platform-specific dirs, e.g. a "user data dir".

Github repo - https://github.com/ActiveState/appdirs

This error from my experience occurred when I updated my local branch from origin and ran pip install to get the latest installed packages.

pip tried to upgrade appdir but it failed for some unknown reasons, then the error came up:

IOError: [Errno 2] No such file or directory: '/.local/lib/python2.7/site-packages/appdirs-1.4.0.dist-info/METADATA'

What worked for me was running

[sourcecode language="plain"]$ pip install appdirs --upgrade [/sourcecode]

then:

[sourcecode language="plain"]$ pip install -r requirements.txt --upgrade [/sourcecode]

The issue was addressed here:

https://github.com/ActiveState/appdirs/issues/89