Current rawhide python-formencode's api.py has: from pkg_resources import resource_filename pkg_resources is in python-setuptools.
Fixed in python-formencode-0.7-3. Luke, I've updated EL-5 as well but not submitted a build yet. 0.7.1 is out and I was thinking we might want to update to that at the same time. Unfortunately I haven't been able to get through to cheeseshop to download the new tarball for a couple days to confirm that the new tarball is a minor bugfix release. Feel free to tag and build for EL-5 if you want. I'm going to keep trying cheeseshop for a few days.
0.7.1 build successfully for rawhide and EL-5.