python3 for NetBSD/pkgsrc

[Chris Ross <cross+netbsd%distal.com@localhost>]

  I was surprised to see, on recent investigation of pkgsrc, that there doesn't 
seem to be a python any newer than 2.6.x.  Since 2.7 and 3.1 have been out for 
many months, and 3.0 well before that, I was curious if I was missing 
something.  Is there a python3 somewhere else in the pkgsrc tree, or a reason 
that it isn't?

  Thanks.  Inquiring minds, and all...

          - Chris