[issue42294] [C API] Add new C functions with more regular reference counting like PyTuple_GetItemRef()

[STINNER Victor]

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

> PyTuple_SetItem() does clear the previous item, it uses Py_XSETREF. The macro version (PyTuple_SET_ITEM) does not clear the previous item.

Oh sorry, I was thinking at PyTuple_SET_ITEM().

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue42294>
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