Lang added the comment:
# code reproduce bug
# KeyError in lib\multiprocessing\managers.py in incref
import multiprocessing as mp
from time import sleep
def func(queue):
pass
if __name__ == '__main__':
manager = mp.Manager()
pool = mp.Pool(1)
queue = manager.Queue()
r = pool.apply_async(func, args = [queue])
#sleep(1)
queue = None
pool.close()
pool.join()
----------
nosy: +tlxxzj
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Python tracker <rep...@bugs.python.org>
<https://bugs.python.org/issue31092>
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