Python conflicting with other python when installed from packages

[John Hein]

Ruslan Mahmatkhanov wrote at 16:14 +0400 on Jun  5, 2012:
 > Baptiste Daroussin wrote on 05.06.2012 16:07:
 > > Hi,
 > >
 > > With pkgng build on pointyhat I discovered that all the python packages when
 > > built on pointyhat, tinderbox or even poudriere all conflicts which each other
 > > meaning you can't install multiple python version in parallel without
 > > overwritting files with old package system and pkgng just forbid you to install
 > > the second package to avoid overwritting the file.
 > >
 > > The thing is that they are conflicting only for the bin/2to3 file. It would be
 > > nice if this file could be for example prefixed with the release of python like:
 > >
 > > bin/py27-2to3 or something like that. I'm aware that when just installing from
 > > ports only the first version of python installed got it, but if you are thinking
 > > in package only world it can't works that way.
 > >
 > > regards,
 > > Bapt
 >
 > Packages that using 2to3 to convert their code on install to be python3
 > compatible looking exactly for `2to3' executable. So such a modification
 > would require modifying all the setup.py's according the python version
 > user has installed as default. It's just a though. I didn't see how to
 > resolve this correctly.

One way: pull out 2to3 to its own separate port and have those
ports that need it specify the dependency.  And, no, I don't
have patches.