Thanks, will try that in the next version (I've actually heard of some other people with problems in Ubuntu - might be the same reason :D
Thanks for the fix, but you fixed just one of the two places that used to give that error - there's still a call to "map(int, platform.python_version().split("."))" on line 78, when you check for Python version 2.5, that gives the same error.
(Sorry for the long response time, and thanks for this great tool)
BTW, any plans for adding git support? I have at least one addon (TourGuide) I upgrade with git, it would be nice to do upgrade it along with the other hundred or so I handle with WUU.