[英]TyperError: object() takes no parameters
Here's my class : 这是我的课:
class Person:
def __new__(cls, first, last):
print("Calling __new__() method of class {}".format(cls))
return object.__new__(cls, first, last)
def __init__(self, first, last):
"""Constructor of Person working instance
(attribute initialization)"""
print("Calling __init__()")
self.first = first
self.last = last
self.age = 23
self.residency = "Lyon"
def __repr__(self):
return "Person : {} {} aged {} years living in {}".format(self.first, self.last, self.age, self.residency)
person = Person("Doe", "John")
print(person)
and I'm getting the following error that I cannot seem to resolve: 并且出现以下我似乎无法解决的错误:
Calling __new__() method of class <class '__main__.Person'>
Traceback (most recent call last):
File "test.py", line 20, in <module>
person = Person("Doe", "John")
File "test.py", line 6, in __new__
return object.__new__(cls, first, last)
TypeError: object() takes no parameters
What am I doing wrong? 我究竟做错了什么? Thank you and cheers!
谢谢您的欢呼!
The object
constructor takes no additional parameters. object
构造函数不需要其他参数。 The right implementation of the __new__
method should not pass the last two parameters: __new__
方法的正确实现不应传递最后两个参数:
def __new__(cls, first, last):
print("Calling __new__() method of class {}".format(cls))
return object.__new__(cls)
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