>> 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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