Assuming you have gdb available, you should be able to attach to the running process, then set a breakpoint in relevant functions (like exit() or abort()). Once there, you can pick through the C stack manually (kind of tedious) or use the gdbinit file which comes with Python to get a Python stack trace (much less tedious, once you've made sure any version dependencies have been eliminated). Or, with the latest versions of gdb (7.x I think), you get more stuff built into gdb itself.
More details here: https://wiki.python.org/moin/DebuggingWithGdb Skip -- https://mail.python.org/mailman/listinfo/python-list
