An example of getting an attribute from a child class

car.py

class Car(object):

    def __init__(self, model, engine, fuel_capacity, tires):
        self.model = model
        self.tires = tires
        self.engine = engine
        self.fuel_capacity = fuel_capacity

    def drive(self, text):
        print text + ' ' + self.model


class Engine(object):

    def __init__(self, size):
        self.size = size


class Tires(object):

    def __init__(self, model, number, has_spare_tire=False):
        self.model = model
        self.number_of_tires = number
        self.has_spare_tire = has_spare_tire


class Toyota(Car):

    def __init__(self, ):
        self.model = 'Corolla'
        self.engine = 'v4'
        self.fuel_capacity = '1500 cc'
        self.tires = 4
        super(Toyota, self).drive('I am driving a')

    def print_tires(self):
        print self.tires.model


ToyotaCarInstance = Car.__subclasses__()[0]()
print ToyotaCarInstance
print ToyotaCarInstance.model
print ToyotaCarInstance.fuel_capacity