PEP 820 – PySlot: Unified slot system for the C API

PEPs
6

I’ve updated the PEP a bit:

  • Be clearer that the PEP 793 API added in 3.15 alpha (PyModExport, PyModule_FromSlotsAndSpec) will be changed to return the new slots.

  • Deprecation of things that were documented to not work, but worked in practice:

    • setting a slot value to NULL (except if the slot explicitly allows this)
    • repeating a slot ID in a definition (except )

    As with all deprecations, happy to hear use cases for un-deprecation.

  • Added “third-party slot ID allocation” and “avoiding anonymous unions” to Rejected Ideas.