Hopefully you've found it by now and didn't have a frustrating
christmas :).
Get the source from sourceforge and then follow the instructions here.
http://www.davidcramer.net/code/57/mysqldb-on-leopard.html
Worked perfectly for me on OSX 10.5, python 2.5. Was frustrating to
find. Good luck!
I've been trying to get MySQL-python to install on Leopard for the
past couple of days, and I keep running into relatively the same
error. I'm hoping that someone on this list will be able to help me
out in solving the issue. I'd like to get this solved so I can
continue developing with Dja