Does anybody know a good working Python 3.x wrapper for OAUTH2? I'm having issues with the backwards incompatability with simplegeo-python-oauth2.:'(

I do not know if this would be worth a try, it at least support newer 2.0 version also. This is a Google answer though, never used it. I do not know if it work for Python3. It has quite a few promising examples on the page, though.
https://github.com/ryanhorn/tyoiOAuth2