[issue35629] hang and/or leaked processes with multiprocessing.Pool(...).imap(...)

[STINNER Victor]

STINNER Victor <vstinner at redhat.com> added the comment:

I suggest you to write:

with multiprocessing.Pool(4) as pool: result = tuple(pool.imap(print, (1, 2, 3)))

On Python 3.8, your example will now log a resource warning since you don't close/terminate explicitly the pool.

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nosy: +vstinner

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<https://bugs.python.org/issue35629>
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