Disable site-packages?

[Deepwalker]

Do we need to disable site-packages to prevent pollution of our environment by system installed packages? With pyenv this is not actual, but do we need to support debian/ubuntu/centos/whatever system pythons? Unlikely, but need to discuss.

[dan-passaro]

If virtualenv and bundler do it, I think pundler should do it, too. (And I'm pretty sure virtualenv and bundler do it.)

[bpiwowar]

at least pundler packages should have higher priority (which amounts to the same results I guess)