In MySQL-python-1.2.3c1, _mysql_ConnectionObject_kill() contains
unsigned long pid;
if (!PyArg_ParseTuple(args, "i:kill", &pid)) return NULL;
which is wrong and will produce seriously incorrect behavior on any 64-bit big-endian architecture. (It might work by chance on little-endian.)
My inclination is to change to "l:kill" (letter ell). Another possibility is "k" to exactly match the unsigned long variable, but that will fail in pre-2.3 Python,
and doesn't really seem to offer much that "l" wouldn't. Or you could change the variable to int, but unsigned long matches mysql_kill so it's probably
best to leave the variable alone and fix the format spec.
Originally reported at https://bugzilla.redhat.com/show_bug.cgi?id=538234