python: class override “is” behavior

Question

I\'m writing a class which encapsulates any arbitrary object, including simple types. I want the \"is\" keyword to operate on the encapsulated value, such as this behavior:<

Answer 1

is itself cannot be overloaded, but you may be interested in other "Reflection" magic methods which may be suitable for your use case (since you are looking at this thread):

__instancecheck__(self, instance) Checks if an instance is an instance of the class you defined (e.g. isinstance(instance, class).

__subclasscheck__(self, subclass) Checks if a class subclasses the class you defined (e.g. issubclass(subclass, class)).