Vehicle_Interface.py

from abc import ABC, abstractmethod

class IVehicle(ABC):

    @abstractmethod
    def start_engine(self):
        pass

    @abstractmethod
    def stop_engine(self):
        pass

class Car(IVehicle):

    def start_engine(self):
        print("Starting the car engine")

    def stop_engine(self):
        print("Stopping the car engine")

class Bike(IVehicle):

    def start_engine(self):
        print("Starting the bike engine")

    def stop_engine(self):
        print("Stopping the bike engine")

class Truck(IVehicle):

    def start_engine(self):
        print("Starting the truck engine")

    def stop_engine(self):
        print("Stopping the truck engine")

car = Car()
car.start_engine()
car.stop_engine()

bike = Bike()
bike.start_engine()
bike.stop_engine()

truck = Truck()
truck.start_engine()
truck.stop_engine()