[issue35206] [WIP] Add a new experimental _Py_CAPI2 API

[STINNER Victor]

Change by STINNER Victor <vstinner at redhat.com>:


----------
title: Add a new experimental _Py_CAPI2 API -> [WIP] Add a new experimental _Py_CAPI2 API

_______________________________________
Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue35206>
_______________________________________