Bug#751827: python-virtualenv: version of pip in virtualenvs fails to uninstall some packages

[Jack L.]

1.5.6-3 doesn't seem to be working over here even on a fresh virtualenv

Installing collected packages: pillow
Found existing installation: Pillow 2.4.0
Can't uninstall 'Pillow'. No files were found to uninstall.

- Jack Laxson