Hmm, that sounds good. Could you send the script over? I can add it to the Panda source, and anyone who wants to go out of his way to use Python 3 can run that script after building and installing Panda3D.
Perhaps I can incorporate it into makepanda, so that when building against Python 3 it would automatically convert the tree in built/direct.
If you have any suggestions for setting up unit testing in the Panda3D codebase, I’d love to hear your ideas.