Ֆունկցիոնալության ընդլայնում super()-ի միջոցով

class Animal:                       # Define a class named 'Animal'
    def __init__(self, species):
        self.species = species

    def speak(self):
        return 'Sounds...'

class Dog(Animal):                  # Define a subclass named 'Dog' that inherits from 'Animal'
    def __init__(self, name):
        super().__init__('Dog')     # Call the parent's '__init__' method using 'super()'
        self.name = name            # Additional attribute 'name' for 'Dog'
        print(self.species)         # Will print Dog

    def speak(self):
        original = super().speak()  # Call the parent's 'speak' method using 'super()'
        return original + ' Woof!'

class Cat(Animal):                  # Define a subclass named 'Cat' that inherits from 'Animal'
    def __init__(self, name):
        super().__init__('Cat')     # Call the parent's '__init__' method using 'super()'
        self.name = name            # Additional attribute 'name' for 'Cat'

    def speak(self):
        original = super().speak()  # Call the parent's 'speak' method using 'super()'
        return original + ' Meow!'

dog = Dog('Rex')                              # Create an instance of the 'Dog' class
cat = Cat('Fluffy')                           # Create an instance of the 'Cat' class
print(dog.name, dog.species, dog.speak())     # Rex Dog Sounds... Woof!
print(cat.name, cat.species, cat.speak())     # Fluffy Cat Sounds... Meow!