Most python packages seem to use a versioned prefix, e.g. python2.7-. Some modules don't, e.g. python-tkinter, python-pyaudio.

I think all packages should use a versioned prefix (in contrast to apps, that should not use a prefix, see #1466).

Having all packages use a versioned prefix we could also enable recursion for python2.6 and python3.2 though this might be a separate discussion.