Polymorphism allows methods to do different things based on the object it is acting upon. It enables objects of different classes to be treated as objects of a common superclass.

Method Overriding

Derived classes can override methods from the base class.

Example:

class Animal:
    def speak(self):
        print("Animal speaks")

class Dog(Animal):
    def speak(self):
        print("Dog barks")

class Cat(Animal):
    def speak(self):
        print("Cat meows")

animals = [Dog(), Cat()]
for animal in animals:
    animal.speak()

Output:

Dog barks
Cat meows

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