Bug report

Bug description:

The API_PyErr_ChainExceptions1 has been removed from public headers as part ofthis 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 the3.12 whatsnew.

In my extemsion module I use_PyErr_ChainExceptions for exception chaining for Python <= 3.11 fromPEP 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-116809: Restore removed _PyErr_ChainExceptions1() function #116900