PEP 649: Mark as Final

[AA-Turner]

• Final implementation has been merged (including tests and docs)
• PEP matches the final implementation
• Any substantial changes since the accepted version approved by the SC/PEP delegate
• Pull request title in appropriate format (PEP 123: Mark as Final)
• Status changed to Final (and Python-Version is correct)
• Canonical docs/spec linked with a canonical-doc directive
  (or canonical-pypa-spec for packaging PEPs,
  or canonical-typing-spec for typing PEPs)

649 is an odd one as "PEP matches the final implementation" requires also reading 749. Thoughts?

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[JelleZijlstra]

I wonder if we should add some sort of note pointing to PEP-749

[AA-Turner]

On second thought, it might be good to wait until after 3.14.0 final is released? I'll put this as draft.

[StanFromIreland]

This has been addressed in 5a1fddd.