如何发现我在Python中的错误？

Question

编写一个名为Person的类，该类具有一个人的姓名，地址和电话号码的数据属性。 接下来，编写一个名为Customer的类，它是Person类的子类。

Customer类应该具有一个用于客户编号的数据属性和一个布尔数据属性，该属性指示该客户是否希望在邮件列表中。 在一个简单的程序中演示Customer类的实例。”

这就是我的代码，但是我不断收到以下错误：

Traceback (most recent call last):
  File "/Users/ryanraben/Desktop/person1.py", line 45, in <module>
    import customer
ModuleNotFoundError: No module named 'customer'

这个学期我一直在为这堂课苦苦挣扎。 我在堆栈溢出中发现有人在问类似的问题，但是他们的代码与我的代码有很大不同（如果我复制他们的代码，我仍然无法获得正确的结果）。 这是一个视频模块，我输入了我在教练屏幕上显示的代码，但显然我做错了，因为他的代码有效，而我的代码无效。

class Person:
    def __init__(self, name, address, phone):
        self.__name = name
        self.__address = address
        self.__phone = phone

    def set_name (self, name):
        self.__name = name

    def set_address (self, address):
        self.__address = address

    def set_phone (self, phone):
        self.__phone = phone

    def get_name (self):
        return self.__name

    def get_address (self):
        return self.__address

    def get_phone (self):
        return self.__phone

class Customer (Person):
    def __init__(self, name, address, phone, customer_number, mailing_list):
        Person.__init__(self, name, adress, phone)
        self.__customer_number = customer_number
        self.__mailing_list = mailing_list

    def set_customer_number (self, customer_number):
          self.__customer_number = customer_number

    def set_mailing_list(self, mailing_list):
          self.__mailing_list = mailing_list

    def get_customer_number(self):
        return self.__customer_number

    def get_mailing_list (self):
        return self.__mailing_list



import customer

name = input ('Name: ') 
address = input ('Address: ')
phone = input ('Phone: ')
customer_number = input ('Customer number: ')
mail = input ('Include in mailing list? (y/n): ')

if mail.lower()=='y':
    mailing_list = True
else:
    mailing_list = False

my_customer = customer.Customer (name, address, phone, customer_number, mailing_list)    

print ('Customer Information')
print ('-----------------------------')
print ('Name: ', my_customer.get_name())
print ('Address: ', my_customer.get_address())
print ('Phone: ', my_customer.get_phone())
print ('Customer number: ', my_customer.get_customer_number())
print ('Mailing list: ', my_customer.get_mailing_list())

Answer 1

这是一个非常常见的错误：

您正在尝试import customer库，而您的IDE根本找不到该文件。

由于您正在定义Class Customer我看不到需要导入此不存在的库的任何原因。

因此，建议您删除行import customer 。

除非我误解了。