Introduction to Polymorphism

Polymorphism is a core concept in Object-Oriented Programming (OOP) that allows objects of different classes to be treated as objects of a common superclass. It provides flexibility and reusability in code.

In this lesson, you’ll learn how to implement polymorphism in Python using methods and classes.

What Is Polymorphism?

Polymorphism allows methods in different classes to share the same name while behaving differently. It makes the code more flexible and easier to extend.

# Defining a superclass
class Animal:
    # Method in the superclass
    def speak(self):
        print("Animal speaks")  # Generic message for all animals

# Defining a subclass that overrides the speak method
class Dog(Animal):
    def speak(self):
        print("Dog barks")  # Specific behavior for Dog