super() 在 Python 2 中给出错误

Question

刚开始学习Python，不太明白这段代码的问题出在哪里。我有一个基础 class Proband，有两种方法，我想创建一个 subclass Gesunder，我想覆盖属性 idn，artefakte。

import scipy.io
class Proband:
  def __init__(self,idn,artefakte):
    self.__idn = idn
    self.artefakte = artefakte
  def getData(self):
    path = 'C:\matlab\EKGnurbild_von Proband'+ str(self.idn)
    return scipy.io.loadmat(path)
  def __eq__(self,neueProband):
    return self.idn == neueProband.idn and self.artefakte == neueProband.artefakte



class Gesunder(Proband):
  def __init__(self,idn,artefakte,sportler):
    super().__init__(self,idn,artefakte)
    self.__sportler = sportler

hans = Gesunder(2,3,3)

Answer 1

在Python2中，super()本身是无效的。相反，您必须使用 super(ClassName, self).

super(Gesunder, self).__init__(self, idn, artefakte)

Answer 2

super() 调用应修改为：

super(Gesunder, self).__init__(self, idn, artefakte)

Answer 3

您的代码有 2 个问题。在 python 2:

super() 接受 2 个参数：class 名称和实例
为了使用 super()，基础 class 必须继承自 object

因此您的代码变为：

import scipy.io

class Proband(object):
    def __init__(self,idn,artefakte):
        self.__idn = idn
        self.artefakte = artefakte
    def getData(self):
        path = 'C:\matlab\EKGnurbild_von Proband'+ str(self.idn)
        return scipy.io.loadmat(path)
    def __eq__(self,neueProband):
        return self.idn == neueProband.idn and self.artefakte == neueProband.artefakte

class Gesunder(Proband):
    def __init__(self,idn,artefakte,sportler):
        super(Gesunder, self).__init__(idn,artefakte)
        self.__sportler = sportler

hans = Gesunder(2,3,3)

请注意，对 super(Gesunder, self).__init__ 的调用没有将 self 作为第一个参数。

super() 在 Python 2 中给出错误

super() gives an error in Python 2

python

subclass

super