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[3.11] gh-91345: Talk about ``sys._getframe`` compatibility in 3.11 whatsnew (GH-92552) by miss-islington · Pull Request #92558 · python/cpython · GitHub

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[3.11] gh-91345: Talk about sys._getframe compatibility in 3.11 whatsnew (GH-92552) #92558

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miss-islington merged 1 commit into from
May 9, 2022
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[3.11] gh-91345: Talk about sys._getframe compatibility in 3.11 whatsnew (GH-92552) #92558

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9 changes: 5 additions & 4 deletions Doc/whatsnew/3.11.rst
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Expand Up @@ -891,10 +891,11 @@ holds execution information. The following are new frame optimizations:
- Streamlined the internal frame struct to contain only essential information.
Frames previously held extra debugging and memory management information.

Old-style frame objects are now created only when required by debuggers. For
most user code, no frame objects are created at all. As a result, nearly all
Python functions calls have sped up significantly. We measured a 3-7% speedup
in pyperformance.
Old-style frame objects are now created only when requested by debuggers or
by Python introspection functions such as ``sys._getframe`` or
``inspect.currentframe``. For most user code, no frame objects are
created at all. As a result, nearly all Python functions calls have sped
up significantly. We measured a 3-7% speedup in pyperformance.

(Contributed by Mark Shannon in :issue:`44590`.)

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