[Python-Dev] Bluetooth 4.0 support in "socket" module

I was interested in providing patches for the socket module to add Bluetooth 4.0 support. I couldn't find any details on how to provide contributions to the Python project, though... Is there some online documentation with guidelines on how to contribute? Should I just provide a patch to this mailing list? Also, is there a method to test changes against all the different *nix variations? Is Bluez the standard across the different *nix variations? -Tim