Class that returns False with bool(TheClassItself)

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孤街浪徒
孤街浪徒 2021-02-19 05:29

I want to create a class MyClass where bool(MyClass) returns False. Is it possible?

I want this behavior with the class itself, no

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  • 2021-02-19 05:49

    To define the __bool__ method used by a class, not its instances, you need to modify its class. You do that by writing a metaclass.

    class FalseMeta(type):
        def __bool__(self):
            return False
    
    class MyClass(metaclass=FalseMeta):
        pass
    
    print(bool(MyClass))  # False
    
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