carkey.py

class Car:
    def __init__ (self, model, color):
        self.model = model
        self.color = color
        self.__engine_running = False
        self.__fuel_level = 100
    
    def start_engine(self, car_key):
        if car_key == "car_key_number":
            self.__engine_running = True
            print("Vroom! Engine started.")

    def stop_engine(self):
        self.__engine_running = False
        print("Silence! Engine stopped.")

    def drive(self, distance):
        if self.__engine_running:
            if self.__fuel_level > 0:
                fuel_needed = distance / 10
                if fuel_needed > self.__fuel_level:
                    # Can only drive part of the distance
                    possible_distance = self.__fuel_level * 10
                    print(f"Not enough fuel! Only drove {possible_distance} miles.")
                    self.__fuel_level = 0
                else:
                    self.__fuel_level -= fuel_needed
                    print(f"Driving {distance} miles.")
                print(f"Fuel level: {self.__fuel_level}%")
            else:
                print("Out of fuel! Need to refuel.")
        else:
            print("Engine is not running. Start the engine first.")
    
    def refuel(self, amount):
        self.__fuel_level += amount
        if self.__fuel_level > 100:
            self.__fuel_level = 100
            print(f"Refueled. Fuel level: {self.__fuel_level}%")

my_car = Car("Toyota Camry", "Red")
print(f"My car is a {my_car.color} {my_car.model}.")
my_car.start_engine("car_key_number")
my_car.drive(1000)
my_car.stop_engine()