[Python-ideas] Revisiting Immutable Mappings

[Anders Hovmöller]

>> Even though, it would be the same as issubclass() (though I'd like an AND relationship with the tuple of ABCs..)
> 
> When "hasinterface" ANDs the tuple, it's already different, isn't it?
> 

If it's AND, shouldn't it be "hasinterfaces" (notice the s!)?

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)"

/ Anders
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