runtime type information in python?

[Erik Max Francis]

Issac Trotts wrote:

> Suppose I execute the following code:
> 
> class C: pass
> class B(C): pass
> b=B();
> 
> How do I find out what kind of object b is?

    if b.__class__ is B:
        ...

> How can I find out whether b is-a C?

    if isinstance(b, C):
        ...

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