_PyErr_ChainExceptions1 no longer avallable to extension modules in Python 3.13 alpha headers

Bug report

Bug description:

The API _PyErr_ChainExceptions1 has been removed from public headers as part of this change in Python 3.13 alpha. It is the only C API available to chain exceptions replacing _PyErr_ChainExceptions. That change was publicly documented in the 3.12 whatsnew.

In my extemsion module I use _PyErr_ChainExceptions for exception chaining for Python <= 3.11 from PEP 490 and _PyErr_ChainExceptions1for 3.12+.

Please provide an approved way for C extensions to continue to chain exceptions. The function is still present and I can duplicate the prototype for all to continue working, but that is not a desirable solution.

CPython versions tested on:

3.13

Operating systems tested on:

Linux

Linked PRs

• gh-116900

Commencez par examiner la modification référencée de Python 3.13 alpha dans issue 106320 et le PR lié gh-116900, puis étudiez la manière dont la C API publique expose le chaînage des exceptions dans Python 3.11–3.13. Le travail sera terminé lorsqu’une méthode approuvée permettant aux extension modules de chaîner les exceptions sera établie sans dupliquer un prototype privé.