Tuple parameter unpacking in 3.x

[bearophileHUGS at lycos.com]

Brett C.:
> There are two things to realize about the tuple unpacking that acted
> as motivation. One is supporting them in the compiler is a pain.
> ...
> Second, tuple unpacking in parameters breaks introspection horribly.

Are there ways to re-implement from scratch similar native pattern-
matching features in CPython, like ones of Closure:
http://items.sjbach.com/16/some-notes-about-clojure
Or better ones of Scala, (or even OcaML, but those are static), etc,
that avoid that pain and introspection troubles?

Bye,
bearophile