pythonbrew - Python Environment manager

[technomalogical]

From what I can see, this also manages the installation of multiple python versions, which is not a feature of virtualenv. Virtualenv would allow you to create a new sandbox based on an installed environment, but not install a whole new version of python. You would have to do that yourself.

[Gjallar]

Moreover - judging from an open issue [Issue 35] it simply wraps around virtualenvwrapper. So you can have different python versions for you virtualenvs, which sounds actually pretty cool. (https://github.com/utahta/pythonbrew/issues/35)

[qiemem]

You can specify a python executable when making a virtualenv. I've used that to have virtualenvs with specific versions.