Thanks for trying. :)  I've got a complicated "test" case of zipping up the
stdlib into python27.zip and running the Python test suite against that
which also tends to trigger the bugs.  Some tests failing with SystemError
and such.

It smells like a memory corruption issue but I haven't had time to sit down
and dive in to find it. I won't proceed on my patches for the original bug
until I can figure it out and come up with a more exhaustive unittest that
demonstrates the bug.