8000 gh-95914: Add What's New item describing PEP 670 changes by CAM-Gerlach · Pull Request #98315 · python/cpython · GitHub
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Merged
merged 2 commits into from
Oct 17, 2022
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gh-95914: Add What's New item describing PEP 670 changes #98315

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b1a4d4c
Add item to C API porting section describing PEP 670 changes
CAM-Gerlach Oct 16, 2022
8fad67c
Apply requested changes from Victor and Kumar to PEP 670 section
CAM-Gerlach Oct 17, 2022
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Apply requested changes from Victor and Kumar to PEP 670 section 
Co-authored-by: Victor Stinner <vstinner@python.org>
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@CAM-Gerlach @vstinner
CAM-Gerlach and vstinner authored Oct 17, 2022
commit 8fad67cb543aa6e4d68ff579bc01d04b41f259a3
12 changes: 6 additions & 6 deletions Doc/whatsnew/3.11.rst
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Expand Up @@ -1884,16 +1884,16 @@ New Features
Porting to Python 3.11
----------------------

* Many macros have been converted to functions in the Python C API,
making them usable from other programming languages and avoiding
`macro pitfalls <https://gcc.gnu.org/onlinedocs/cpp/Macro-Pitfalls.html>`_
* Some macros have been converted to static inline functions to avoid
`macro pitfalls <https://gcc.gnu.org/onlinedocs/cpp/Macro-Pitfalls.html>`_.
The change should be mostly transparent to users,
as the replacement functions will cast their arguments to the expected types
to avoid compiler warnings due to static type checks.
However, when the limited C API is set to >=3.11, these casts are not done,
and callers will need to cast arguments to their expected values.
However, when the limited C API is set to >=3.11,
these casts are not done,
and callers will need to cast arguments to their expected types.
See :pep:`670` for more details.
(Contributed by Victor Stinner in :gh:`89653`.)
(Contributed by Victor Stinner and Erlend E. Aasland in :gh:`89653`.)

* :c:func:`PyErr_SetExcInfo()` no longer uses the ``type`` and ``traceback``
arguments, the interpreter now derives those values from the exception
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