[Python-ideas] Revisiting Immutable Mappings

Sven R. Kunze srkunze at mail.de
Thu Oct 18 13:12:33 EDT 2018

On 18.10.18 18:49, Anders Hovmöller wrote:
> If it's AND, shouldn't it be "hasinterfaces" (notice the s!)?

Yeah, could be.

To be sure, we are on the same page here: "interface" refers to a set of 
attributes of the object in question, does it?

E.g. like the __iter__ iterface. I usually don't care about the actual 
inheritance hierarchy but care about functionality.

> One could also imagine that isinstance and issubclass taking a keyword 
> argument for the logical operator. Maybe just something as simple as 
> "isinstance(foo, (a, b), all=True)"

Does AND even make sense for isinstance/issubclass?


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