gitpython-developers/GitPython — pull request #42 by gsoltis (2012-01-11 00:17:35+00:00)
Title: Ignore progress lines from the git http backend that start w/ POST ...

A better way to implement this might be to enumerate the things you do want to count, rather than skipping ones you don't. In the meantime, this fixes the error I ran into on my server.