Ideas for forward-compatible and fast extension libraries in Python 3.12

[encukou (Petr Viktorin)]

@wjakob

2. A way for this function to extend the __basicsize__ of types (including PyTypeObject itself). Petr Viktorin had a proposal that would legitimize this and provide a safe API for obtaining a pointer to the added storage region: Mailman 3 C-API for extending opaque types - capi-sig - python.org

I’ve proposed PEP 697. Could you please check it out, and comment on its topic?

@steve.dower

But if you’re insistent that this split out to a new topic, I’m happy for an admin to do it. I propose the title “Ideas for forward-compatible and fast iteration in extension libraries in Python 3.12”, since that’s what we’re proposing

+1!