[$] Python structural pattern matching morphs again

A way to specify multiply branched conditionals in the Python language—akin
to the C switch statement—has been
a longtime feature request. Over the years, various proposals have been
mooted, but none has ever crossed the finish line and made it into the
language. A highly ambitious proposal that
would solve the multi-branch-conditional problem (and quite a bit more) has
been discussed—dissected, perhaps—in the Python community over the last six
months or so. We have covered
some of the discussion in , but the ground has shifted once
again so it is time to see where things stand.