[NOTE] Updated August 19, 2013. This article may have outdated content or subject matter.
It turns out that running
python setup.py install installs everything into
/path/to/site-packages/Powerline-beta-py2.7.egg/. This folder should be named
Symlinking the included
powerline folder to
site-packages/powerline seems to fix this.
Author Vlad Vasiliu