Improved Python 3 Support In Debian

[Scott Kitterman <scott@kitterman.com>]

Last night I started looking at porting pyversions to Python 3 with the idea of providing a py3versions in python3-defaults. The plan would be to have python3.1 as the default and only supported version for Squeeze. 

The goal is to have the run time requirements for python3 not require python2.  This is probably not something we can do fully for Squeeze (I didn't check if the Python 3 parts of POX's dh_python will be in Python 3 or not).

This is consistent with the last round of proposed Python policy changes I sent out a few months ago.  Once I have it done, I'll ask for review of the code and the relevant policy changes to make sure this is on a sensible path.

Scott K