[$] "Structural pattern matching" for Python, part 2

We left the
("Structural Pattern Matching") at the end of June, but the
discussion of
a Python "match" statement—superficially similar to a C
switch but with extra data-matching features—continued. At this
point, the next steps are up to the Python steering
council, which will determine the fate of the PEP. But there is lots
of discussion to catch up on from the last two months or so.