null created by frankcorneliusmartin - https://repl.it/G6AZ/0

G6AZ-0.py

class Parent(object):

    def __init__(self):
        print(self.A() + self.B())

    def A(self):
        return 1

    def B(self):
        return 2
        
class Child(Parent):
    
    def __init__(self):
        super(Child, self).__init__()
        
    def A(self):
        return 3

print("Parent Class")
Parent()
print("Child Class")
Child()