Determine class where method is defined in

Question

Given the following example, how can we determine at run-time that A.__init__ belongs to class A?

class A:
    def __init__(self):
        print(f"We are in class {self.__class__}")
        # Prints "We are in class <class '__main__.B'>",
        # but desired result  is <class '__main__.A'>


class B(A):
    def __init__(self):
        super().__init__()

B()

Get class that defined method is related, but not the same.

Answer 1

import inspect

class A:
    def __init__(self):
        c = inspect.getmro(self.__class__)
        print(f"We are in class {c}")
        # Prints "We are in class <class '__main__.B'>",
        # but desired result  is <class '__main__.A'>


class B(A):
    def __init__(self):
        super().__init__()

B()
A()

Output:

We are in class (<class '__main__.B'>, <class '__main__.A'>, <class 'object'>)
We are in class (<class '__main__.A'>, <class 'object'>)