[issue11358] Please replace the use of pickle in multiprocessing with json.

[Ezio Melotti]

Changes by Ezio Melotti <ezio.melotti at gmail.com>:


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components: +Library (Lib)
stage:  -> needs patch
type:  -> feature request
versions: +Python 3.3

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Python tracker <report at bugs.python.org>
<http://bugs.python.org/issue11358>
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