2.2 features

[Skip Montanaro]

    Skip> How about 'x in type' as a shorthand for 'issubclass(x, type)' if
    Skip> x is a type or class instead of an instance?

    Guido> No, that would be ambiguous.  A subclass is not an instance.  A
    Guido> class or type represents a set of instances, so 'in' is justified
    Guido> in a sense.

I guess I'm confused, but if isinstance(x, type) is true isn't
issubclass(x.__class__, type) also true?

Skip