pypa/pip — pull request #1672 by thewtex (2014-03-24 02:57:41+00:00)
Title: Fix installation stacktrace when winterm not defined.

Outside of the python.org CPython distribution, winterm can not defined
in colorama, causing a stack trace during installation.

This patch fixes that issue. It has been reported to upstream colorama
at:

http://code.google.com/p/colorama/issues/detail?id=54&q=winterm