(For people who fail to find any mention of protocols in PEP 634, Protocols (PEP 544) can be used (with the @runtime decorator) to override isinstance(), and class patterns are defined to use isinstance() for the class check.) On Wed, Nov 18, 2020 at 11:50 AM Brett Cannon <brett@python.org> wrote:
On Wed, Nov 18, 2020 at 1:25 AM Robin Becker <robin@reportlab.com> wrote:
Is there a bestiary of examples for the current pattern matching proposal(s)?
It seems I don't have a good handle on how one matches simple tests like callability,
Doable using protocols.
function signatures,
I don't think that's directly doable, but there might be some way to bend it to protocols.
possession of specific attribute(s).....etc.
Protocols.
Also will matching ever extend into the Typing universe?
In what way do you have in mind? With protocol support baked into PEP 634 that already ties into type hints.
-Brett
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