[issue21817] `concurrent.futures.ProcessPoolExecutor` swallows tracebacks

[Claudiu Popa]

Claudiu Popa added the comment:

Here's the updated version of this patch.

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type: behavior -> enhancement
versions:  -Python 3.4
Added file: http://bugs.python.org/file37738/issue21817_1.patch

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<http://bugs.python.org/issue21817>
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