I originally posted this as a question on StackOverflow thinking I was doing something wrong:

http://stackoverflow.com/questions/43834494/python-3-6-attributeerror-simplequeue-object-has-no-attribute-poll/43835368#43835368

But I think I found the solution and answered my own question. I'm pretty sure you need to set:

self._poll = self._reader.poll

in the __setstate__ method in the SimpleQueue class of queues.py from the multiprocessing library. Otherwise, I'd love to know an alternative solution.

Thanks!