On Thu, Oct 8, 2009 at 5:31 PM, Tarek Ziadé <ziade.ta...@gmail.com> wrote:
> = Virtualenv and the multiple version support in Distribute = > > (I am not saying "We" here because this part was not discussed yet > with everyone) > > Virtualenv allows you to create an isolated environment to install > some distribution without polluting the > main site-packages, a bit like a user site-packages. > > My opinion is that this tool exists only because Python doesn't > support the installation of multiple versions for the same > distributions. I am really worried about this, because it may encourage people to use multiple versions as a bandaid to maintaining backward compatibility. At least with virtual-env, the problem is restricted to the user. Generalized multiple, side by side installation has been tried in many different contexts, and I have never seen a single one working and not bringing more problems that it solved. One core problem being the exponential number of combination (package A depends on B and C, B depends on one version of D, C on another version of D). Being able to install *some* libraries in multiple versions is OK, but generalizing is very dangerous IMHO. David _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
