python super call for class without inheritance code example

Example 1: how to get the parent class using super python

class Foo(Bar):

    def __init__(self, *args, **kwargs):
        # invoke Bar.__init__
        super().__init__(*args, **kwargs)

Example 2: python super

class Square(Rectangle):
    def __init__(self, length):
        super().__init__(length, length)