Is there a way to have all subclasses of a specific class execute a function whenever an attribute i-CodePudding

I have a class with a custom __getattribute__ definition, for example:

class DummyBaseClass:
    def __getattribute__(self, name):
        #Interesting logging/validation code here
        return object.__getattribute__(self, name)

I would like subclasses of this class to also execute what is in the #Interesting code block when they have their attributes accessed, without explicitly adding a __getattribute__ definition to every subclass.

What is the best way to achieve this?

CodePudding user response：

I think this is what you are looking for:

class DummyBaseClass:
    test = 'Hello World'

    def __getattribute__(self, name):
        #Interesting logging/validation code here
        print(f"{self}: __getattribute__ is called")
        return object.__getattribute__(self, name)


class DummySubClass(DummyBaseClass):
    pass


class AnotherDummySubClass(DummyBaseClass):
    def __getattribute__(self, name):
        print('Hi, I do more than the others when __getattribute__ gets called')
        return super().__getattribute__(name)


class JustAnotherDummySubClass(AnotherDummySubClass):
    test_german = 'Hallo Welt'


print(DummyBaseClass().test)
print(DummySubClass().test)
print(AnotherDummySubClass().test)
print(JustAnotherDummySubClass().test_german)