class_inheritance2.PY

class Animal:
    def __init__(self, nickname: str, age: int):
        self.nickname = nickname
        self.age = age

    def make_sound(self):
        pass

class Cat(Animal):
    def make_sound(self) -> str:
        return "Meow"

class Dog(Animal):

    def __init__(self, nickname: str, age: int, breed: str):
        super().__init__(nickname, age)  # Викликаємо конструктор базового класу
        self.breed = breed  # Додаємо нову властивість

    def make_sound(self) -> str:
        return "Woof"

    def chase_tail(self) -> str:
        return f"{self.nickname} is chasing its tail!"

class Cow(Animal):
    def make_sound(self):
        return "Moo"

my_cat = Cat("Simon", 4)
my_cow = Cow("Bessie", 3)

print(my_cat.make_sound())  # Виведе "Meow"
print(my_cow.make_sound())  # Виведе "Moo"

my_dog = Dog("Rex", 5, "Golden Retriever")
print(my_dog.make_sound())  # Виведе "Woof"
print(my_dog.chase_tail())  # Виведе "Rex is chasing its tail!"