advanced35 XP

Inheritance & Polymorphism

Extend classes and make objects behave differently

Inheritance

Python

class Animal:
    def __init__(self, name):
        self.name = name
    def speak(self): return "..."

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

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

for a in [Dog("Buddy"), Cat("Whiskers")]:
    print(f"{a.name}: {a.speak()}")

Same method name, different behaviour = polymorphism!

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Python · Playground

Output

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Quick check

01/2

What does inheritance allow a child class to do?