Hosed yum

[cam at apt2324.com]

My yum got hosed after installing some faulty test packages...it dies
with an "ImportError: No module named rpm" when I try to run it.  As
this was a couple months back, I imagine there are decent packages out
now.

What packages would anyone suggest I reinstall (from rpm) to fix
this?  I'm guessing something python-related, but I'm not certain
what.  Thanks.
-- 
Cam Desautels <cam at apt2324.com>