【设计开发】 Python学习笔记-super() argument 1 must be type, not classobj

 

#!/usr/bin/python
# -*- coding:UTF-8 -*-

class Person():
  "A Person class"

  def __init__(self,name,age):
    self.name =name
    self.__age = age

  def Introduce(self):
    print "Hi, My name is:%s,I'm %d years-old."%(self.name,self.__age)


class Student(Person):
  "A student class <- Person"

  def __init__(self,name,age,score):
    Person.__init__(self,name,age)  #Notice：If don't call person.__init__ then Student class will lose name and age.
    self.score = score
  
  def ReportScore(self):
    super(Student,self).Introduce()
    print "My score is:%d"%(self.score)

  def __str__(self):
    return "This is a student class"


s1=Student('A',20,80)

#s1.Introduce()
s1.ReportScore()

 

以上代码第23行报错：

➜  Python git:(master) ✗ python oop_syntax.py
Traceback (most recent call last):
  File "oop_syntax.py", line 33, in <module>
    s1.ReportScore()
  File "oop_syntax.py", line 23, in ReportScore
    super(Student,self).Introduce()
TypeError: super() argument 1 must be type, not classobj

 

参考做法：https://blog.csdn.net/andos/article/details/8973368

将Person改为新类，问题解决。

#!/usr/bin/python
# -*- coding:UTF-8 -*-

class Person(object):
  "A Person class"

  def __init__(self,name,age):
    self.name =name
    self.__age = age

  def Introduce(self):
    print "Hi, My name is:%s,I'm %d years-old."%(self.name,self.__age)