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gh-68663: clarify task definition in Pool.map docs #150063

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gh-68663: clarify task definition in Pool.map docs #150063

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7 changes: 5 additions & 2 deletions Doc/library/multiprocessing.rst
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Expand Up @@ -2508,8 +2508,11 @@ with the :class:`Pool` class.
one *iterable* argument though, for multiple iterables see :meth:`starmap`).
It blocks until the result is ready.

This method chops the iterable into a number of chunks which it submits to
the process pool as separate tasks. The (approximate) size of these
This method chops the iterable into a number of chunks and submits each
chunk to the process pool as a separate task. A task may therefore
process multiple items from the iterable.

The (approximate) size of these
chunks can be specified by setting *chunksize* to a positive integer.

Note that it may cause high memory usage for very long iterables. Consider
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