I still think it would improve the PEP significantly if it added one case of mixed positional/keyword indexing.  Lots of suggestions have floated by, and I don't care which one is used, but something to demonstrate that within the PEP.

On Tue, Sep 29, 2020 at 11:43 AM Guido van Rossum <guido@python.org> wrote:
 At this point I think we're all set for use cases, both for keyword-only and for mixed use. Clearly a lot of libraries are going to be able to provide better APIs using this PEP, and mixed use of positionals and keywords will be quite useful to some of these.

--Guido van Rossum (python.org/~guido)
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