I have been getting periodic crashes from a long running python job on Mac OS X. There is nothing indicative of a crash from standard output or error. I'm not sure if the OS X crash records actually find your way back to you, but I am explicitly including mine here. I will try to attach my code after submission of this entry. I run this in the background on OS X, with stdout and stderr redirected to the same file.

According to the crash trace you supplied, the crash happened as a result of a call in librdkafka called from the cimpl extension module. As neither of these are part of the Python standard library, suggest you contact the project that supplies them or possibly Homebrew if you installed them through brew. Good luck!