Python OOP naive example.

dogs.py

class Dog:
    def __init__(self):
        self.name = "Unknown"
        self.age = 10

    def bit(self):
        print(self.name + " has bitten")

    def describe(self):
        print("Name: ", self.name)
        print("Age: ", self.age)

if __name__ == '__main__':
    snoopy = Dog()
    laika = Dog()

    snoopy.name = "Snoopy"
    snoopy.age = 4

    laika.name = "Laika"

    snoopy.bit()

    snoopy.describe()
    print()
    laika.describe()