I propose adding a banner to all C API documentation pages to recommend using 3rd party tools, rather than using directly the C API.

See the discussion on HPy: https://discuss.python.org/t/c-api-working-group-and-plan-to-get-a-python-c-api-compatible-with-alternative-python-implementations/89477/41

Linked PRs

• gh-133678: Add a banner to C API doc to recommend 3rd party tools #133679
• gh-133678: Document C API third party tools #134526
• [3.13] gh-133678: Document C API third party tools (GH-134526) #134792
• [3.14] gh-133678: Document C API third party tools (GH-134526) #134793