multithreading - Python: how to use pickle to dump Queue objects? -

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the problem directly using pickle dump queue raise exception. have read similar post not got answer yet: pickle queue objects in python

i can't replace queue collections.deque because i'm running multithreading program, in queue used synchronization.

so how can this?

if need save queue remaining content the (one , one) master thread after consumer , producer threads have terminated, have dump queue plain of list -- , use pickle persist list. 

def qdumper(q):     try:         yield q.get(false)     except queue.empty:         pass  remaining = [item item in qdumper(my_queue)] pickle.dump(remaining, ....)

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