[issue22864] Add filter to multiprocessing.Pool

[Christian Leichsenring]

Christian Leichsenring <christian.leichsenring at googlemail.com> added the comment:

The main point the OP didn't make is exactly the issue that Pool.map returns a list which is potentially very large given that multiprocessing is used to process large amounts of data.

So IMHO either there should be the possibility to exclude elements from being saved in memory (i.e. Pool.filter) or Pool.map shouldn't return a list but just an iterable.

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nosy: +christian.leichsenring

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue22864>
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