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bpo-39573: Remove What's new entry for Py_SIZE() #23375

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Nov 18, 2020
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bpo-39573: Remove What's new entry for Py_SIZE() #23375

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11 changes: 0 additions & 11 deletions Doc/whatsnew/3.10.rst
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Expand Up @@ -500,17 +500,6 @@ Porting to Python 3.10

(Contributed by Victor Stinner in :issue:`39573`.)

* Since :c:func:`Py_SIZE()` is changed to the inline static function,
``Py_SIZE(obj) = new_size`` must be replaced with ``Py_SET_SIZE(obj, new_size)``:
see :c:func:`Py_SET_SIZE()` (available since Python 3.9). For backward
compatibility, this macro can be used::

#if PY_VERSION_HEX < 0x030900A4
# define Py_SET_SIZE(obj, size) ((Py_SIZE(obj) = (size)), (void)0)
#endif

(Contributed by Victor Stinner in :issue:`39573`.)

* Calling :c:func:`PyDict_GetItem` without :term:`GIL` held had been allowed
for historical reason. It is no longer allowed.
(Contributed by Victor Stinner in :issue:`40839`.)
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