Lesson 25

Inheritance

A subclass inherits attributes and methods from a parent: class Dog(Animal). It gets everything Animal has.

Define a method with the same name in the subclass to override it. super() calls the parent version when you still need it.

Use inheritance for real "is a" relationships. A Dog is an Animal; an Engine is not a Car.

class Animal:
    def speak(self):
        return "..."

class Dog(Animal):
    def speak(self):
        return "Woof"

Check your understanding

What does overriding a method do?

CHALLENGE

Create Animal with speak() returning "..." and Cat(Animal) overriding it to return "Meow". Print Cat().speak().