realpython-materials/python-class/animals.py at master · 4383/realpython-materials · GitHub

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class Animal:
    def __init__(self, name, sex, habitat):
        self.name = name
        self.sex = sex
        self.habitat = habitat


class Mammal(Animal):
    unique_feature = "Mammary glands"


class Bird(Animal):
    unique_feature = "Feathers"


class Fish(Animal):
    unique_feature = "Gills"


class Dog(Mammal):
    def walk(self):
        print("The dog is walking")


class Cat(Mammal):
    def walk(self):
        print("The cat is walking")


class Eagle(Bird):
    def fly(self):
        print("The eagle is flying")


class Penguin(Bird):
    def swim(self):
        print("The penguin is swimming")


class Salmon(Fish):
    def swim(self):
        print("The salmon is swimming")


class Shark(Fish):
    def swim(self):
        print("The shark is swimming")