[issue45476] [C API] PEP 674: Disallow using macros as l-value

[STINNER Victor]

STINNER Victor <vstinner at python.org> added the comment:

> * zodbpickle-2.2.0: src/zodbpickle/_pickle_33.c

Technically, zodbpickle works on Python 3.11 and is not impacted by the Py_SIZE() change.

_pickle_33.c redefines the Py_SIZE() macro to continue using as an l-value:
https://github.com/zopefoundation/zodbpickle/commit/8d99afcea980fc7bb2ef38aadf53300e08fc4318

I proposed a PR to use Py_SET_SIZE() explicitly:
https://github.com/zopefoundation/zodbpickle/pull/64

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