在 Python 3.x 中出错：TypeError: 'int' object is not callable

我是编程新手。我从 Python 3.x 开始，从 Python Crash Course 学习。我在尝试书中的示例程序时遇到错误。代码是：

class Car():
    def __init__(self, make, model, year):
        self.make = make
        self.model = model
        self.year = year
        self.odometer_reading = 0

    def get_descriptive_name(self):
        car_name = str(self.year) + ' ' + self.make + ' ' + self.model + 'model.'
        return car_name.title()
    def read_odometer(self):
        print("This car has " + str(self.odometer_reading) + " miles on it.")

my_dream_car = Car('lamborghini', 'one-off', 2017 )
print("\nMy dream car is " + my_dream_car.get_descriptive_name())
my_dream_car.odometer_reading = 23
my_dream_car.odometer_reading()

输出：

Traceback (most recent call last):

  File "C:/Users/Jai/PycharmProjects/PCC/Chapter_9-Classes/4_car_class.py", line 18, in <module>

My dream car is 2017 Lamborghini One-Off Model.

    my_dream_car.odometer_reading()

TypeError: 'int' object is not callable

进程以退出代码 1 结束