You are hardcoding python version there and don't run python_mod_cleanup on uninstall. Patch attached below.
Created attachment 108835 [details, diff] pymmlib-0.9.8.ebuild.diff
Hi Jakub, Thanks a lot for the note and I just fixed this in cvs. It turns out that we need an additional call to python_version before python_mod_cleanup to get {PYVER} set up properly. cheers, Markus