Python Tutorial 8.4 - Inheritance & Polymorphism

Welcome to the “Inheritance & Polymorphism” tutorial!

Overview

Inheritance lets a class derive from another, reusing code. Polymorphism allows different classes to be used interchangeably.

Example

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

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

class Cat(Animal):
    def speak(self):
        return "Meow!"

def make_it_speak(animal: Animal):
    print(animal.speak())

make_it_speak(Dog())  # Woof!
make_it_speak(Cat())  # Meow!

Key Takeaways

• Subclass with (ParentClass).
• Override methods to change behavior.
• Use base class references for polymorphism.

Happy coding!