[英]Python error when implementing class
class DetailedScore(Score):
'''A subclass of Score adding level'''
def __init__(self, points, initials, level):
'''
(Score, int, str, int) -> NoneType
Create a score including number of points, initials, and level.
'''
super().__init__(points, initials)
self.level = level
def __str__(self):
'''
Return a string representation of DetailedScore formated:
'The student with initials 'KTH' scored 100 points, the student is in level 10'
'''
score_str = super().__str__()
return '{}, the student is in level {}'.format(score_str, self.level)
def __repr__(self):
'''
Return a string representation of DetailedScore formated:
'DetailedScore(100, 'KTH', 10)'
'''
return 'DetailedScore({}, {}, {})'.format(self.points, self.initials, self.level)
score5 = DetailedScore(1000, 'JQP', 100)
score6 = DetailedScore(999, 'ABC', 99)
score7 = DetailedScore(999, 'BBB', 15)
score8 = DetailedScore(1, 'KTH', 12)
I am trying to finish this class, and am not sure why I keep getting an error when trying to build. 我正在尝试完成本课程,并且不确定在尝试构建时为什么会不断出错。
This is the error: 这是错误:
Traceback (most recent call last):
File "/Users/KoryHershock/Documents/Python/[Kory_Hershock]_final.py", line 187, in <module>
score5 = DetailedScore(1000, 'JQP', 100)
File "/Users/KoryHershock/Documents/Python/[Kory_Hershock]_final.py", line 162, in __init__
super().__init__(points, initials)
TypeError: super() takes at least 1 argument (0 given)
[Finished in 0.1s with exit code 1]
If you're using Python 2, you must write super(DetailedScore, self)
, not super()
. 如果您使用的是Python 2,则必须编写
super(DetailedScore, self)
,而不要编写super()
。
It is Python 3 that also allows the no-argument form with the compiler inserting the appropriate class object taken from lexical context. 正是Python 3允许无参数形式的编译器插入从词法上下文中获取的适当的类对象。
将super().__whatever__()
更改为super(Score, self).__whatever__()
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