abstract_classes.py

# abstract classes uses
# prevent a user from creating an object of that class
# compels a user to override abstract methods in a child class
# abstract class = a class which contains one or more abstract methods.
# abstract method = a method that has a declaration but does not have an implementation.

from abc import ABC, abstractmethod


class Vehicle(ABC):

    @abstractmethod
    def go(self):
        pass

    @abstractmethod
    def stop(self):
        pass


class Car(Vehicle):

    def go(self):
        print("You drive the car")

    def stop(self):
        print("The car has stopped")


class Motorcycle(Vehicle):

    def go(self):
        print("You ride the motorcycle")

    def stop(self):
        print("The Motorcycle has stopped")


# vehicle = Vehicle()
car = Car()
motorcycle = Motorcycle()

# vehicle.go()
car.go()
motorcycle.go()

car.stop()
motorcycle.stop()