python - How do I check (at runtime) if one class is a subclass of another? -

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let's have class suit , 4 subclasses of suit: heart, spade, diamond, club.

class suit:    ... class heart(suit):    ... class spade(suit):    ... class diamond(suit):    ... class club(suit):    ...

i have method receives suit parameter, class object, not instance. more precisely, may receive 1 of 4 values: heart, spade, diamond, club. how can make assertion ensures such thing? like:

def my_method(suit):    assert(suit subclass of suit)    ...

i'm using python 3.

you can use issubclass() assert issubclass(suit, suit).

but why want such thing? python not java.


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