I was thankful to see your reaction to my issue#453, but unfortunately GitPython 2.0.9 has some issues on Python 2.6. GitPython 2.0.8 worked like a charm for us.

The issues are:

• uses of dictionary comprehension ingit/cmd.py around line 800 (dict comprehensions were introduced in py27).
• use of SkipTest and skipIf fromunittest.case ingit/util.py and in several test cases (these were added tounittest in py27). Also, the Pythonunittest docs suggest they be imported fromunittest and not fromunittest.case, but that is minor.

I have fixed those locally and will create a PR for your review.