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pythonGH-109190: Copyedit 3.12 What's New: PEP 684 (python#109657)
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AA-Turner authored and csm10495 committed Sep 28, 2023
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8 changes: 4 additions & 4 deletions Doc/whatsnew/3.12.rst
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PEP 684: A Per-Interpreter GIL
------------------------------

Sub-interpreters may now be created with a unique GIL per interpreter.
:pep:`684` introduces a per-interpreter :term:`GIL <global interpreter lock>`,
so that sub-interpreters may now be created with a unique GIL per interpreter.
This allows Python programs to take full advantage of multiple CPU
cores.
cores. This is currently only available through the C-API,
though a Python API is :pep:`anticipated for 3.13 <554>`.

Use the new :c:func:`Py_NewInterpreterFromConfig` function to
create an interpreter with its own GIL::
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For further examples how to use the C-API for sub-interpreters with a
per-interpreter GIL, see :source:`Modules/_xxsubinterpretersmodule.c`.

A Python API is anticipated for 3.13. (See :pep:`554`.)

(Contributed by Eric Snow in :gh:`104210`, etc.)

.. _whatsnew312-pep669:
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