Comment 6 for bug 563060

Yes, this is a problem with python-pkg-resources (distribute), not zope.interface, and this affects me too. python-pylibmc does the same thing. When loading pylibmc through pkg_resources, I get DistributionNotFound: pylibmc. This bug is made even worse by the fact that in 10.04 you cannot actually get the real setuptools as a work-around because Ubuntu now gives you distribute when you ask for setuptools, so you're stuck with an impossible dependency.