Comment 3 for bug 1379579

We can't really add a direct version-based requirement from pbr and setuptools, because setuptools is used to install pbr and you do not want setuptools to upgrade itself as a side-effect of installing a package (that tends to leave you with either a broken setuptools or none at all).

We could document that pbr needs the newest setuptools, but I'm not sure that's really going to help the situation. Maybe if we include this error message in the docs as well, that would make it easy to find via search? OTOH, this bug should also show up in search results for the same reason.