Slightly OT: The slowness of running 2to3 during install time can be fixed by not doing so, but instead running it when the distribution is created, including both Python 2 and Python 3 code in the distribution. http://python3porting.com/2to3.html#distribution-section There are no tools that support this at the moment though. I guess it would be cool if Distribute supported making these kinds of distributions... //Lennart