Anyone have experience with this or other multiprocessing.Pool variants?: https://pypi.python.org/pypi/billiard/3.3.0.20 I implemented a means of detecting internal pool errors, namely pickle errors in its internal queues, but it requires polling AsyncResult objects - not ideal. in python 3.2+ there is an error_callback that would be just the ticket, and billiard above gives me that, but before going either path wanted to see if folks had wisdoms here