[Python-ideas] Match statement brainstorm

[Michael Selik]

On Wed, May 25, 2016 at 2:26 AM Greg Ewing <greg.ewing at canterbury.ac.nz>
wrote:

>
> My feeling is that the patterns should look like
> constructors. The archetypal constructor for a mapping
> object is the dict display, so a pattern that matches
> a mapping having particular keys would be
>
>     case {"x": p, "y": q}:
>

This is starting to look really good to me. But if that's valid in a case
statement, why not in a regular assignment?

    (a, b, *rest) = sequence
    {'x': p, 'y': q, **rest} = mapping
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