Spec URL: http://www.excelsiorsystems.net/media/files/python-virtualenv.spec
SRPM URL: http://www.excelsiorsystems.net/media/files/python-virtualenv-1.3.3-1.fc11.src.rpm
Description:     
    virtualenv is a tool to create isolated Python environments.

    The basic problem being addressed is one of dependencies and versions,
    and indirectly permissions.  Imagine you have an application that
    needs version 1 of LibFoo, but another application requires version
    2.  How can you use both these applications?  If you install
    everything into ``/usr/lib/python2.4/site-packages`` (or whatever your
    platform's standard location is), it's easy to end up in a situation
    where you unintentionally upgrade an application that shouldn't be
    upgraded.