Easy example to understand!

# Parent class
class Animal:
    def __init__(self, name):
        self.name = name

    def speak(self):
        print("The animal speaks.")

# Child class inheriting from Animal
class Dog(Animal):
    def speak(self):
        print("Woof!")

# Child class inheriting from Animal
class Cat(Animal):
    def speak(self):
        print("Meow!")

# Creating instances of the classes
animal = Animal("Generic Animal")
dog = Dog("Buddy")
cat = Cat("Whiskers")

# Calling the speak() method on instances
animal.speak()  # Output: The animal speaks.
dog.speak()     # Output: Woof!
cat.speak()     # Output: Meow!