[issue4106] multiprocessing occasionally spits out exception during shutdown

[Antoine Pitrou]

Antoine Pitrou <pitrou at free.fr> added the comment:

Ok, I think the reason this doesn't appear in 3.2/3.3 is the fix for issue1856. In 2.x (and 3.1) daemon threads can continue executing after the interpreter's internal structures have started being destroyed.

The least intrusive solution is to always join the helper thread before shutting down the interpreter. Patch attached.

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keywords: +patch
stage:  -> patch review
Added file: http://bugs.python.org/file23031/mpqshutdown.patch

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