#carexample5.py
class Car:
    c_mileage_units = "Mi"
    __max_speed = 200

    def __init__(self, color, miles, model):
        self.i_color = color
        self.i_mileage = miles
        self.__no_doors = 4
        self._model = model

    def __str__(self):
        return f"car with color {self.i_color}, mileage {self.i_mileage}, model {self._model} and doors {self.__doors()}"

    def __doors(self):
        return self.__no_doors

if __name__ == "__main__":
    car = Car ("blue", 1000, "Camry")
    print (car)

    """These lines are only for illustration and not best practice"""
    print(Car._Car__max_speed)
    print (car._Car__doors())
    print (car._model)         #possible but against the protected definition