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GH-109190: Copyedit 3.12 What's New: PEP 669 #109658

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Sep 22, 2023
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GH-109190: Copyedit 3.12 What's New: PEP 669 #109658

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418d21d
669: Add link to PEP, rephrase, credits
AA-Turner Sep 8, 2023
830e697
Add full sentence period to attribution.
ambv Sep 22, 2023
eaab463
Avoid saying "instrumentation" which is an implementation detail
ambv Sep 22, 2023
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8 changes: 5 additions & 3 deletions Doc/whatsnew/3.12.rst
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Expand Up @@ -322,13 +322,15 @@ A Python API is anticipated for 3.13. (See :pep:`554`.)
PEP 669: Low impact monitoring for CPython
------------------------------------------

CPython 3.12 now supports the ability to monitor calls,
returns, lines, exceptions and other events using instrumentation.
:pep:`669` defines a new :mod:`API <sys.monitoring>` for profilers,
debuggers, and other tools to monitor events in CPython.
It covers a wide range of events, including calls,
returns, lines, exceptions, jumps, and more.
This means that you only pay for what you use, providing support
for near-zero overhead debuggers and coverage tools.

See :mod:`sys.monitoring` for details.

(Contributed by Mark Shannon in :gh:`103083`.)

New Features Related to Type Hints
==================================
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