Python多繼承帶參數(shù)出現(xiàn)異常

1在學(xué)習(xí)python多繼承過(guò)程中出現(xiàn)了一個(gè)異常，實(shí)在是搞不清楚問(wèn)題出在哪里，求大神解答

class People(object):
    def __init__(self,name,sex):
        self.name=name
        self.sex=sex
class Teacher(People):
    def __init__(self, name, sex, student):
        super(Teacher, self).__init__(name, sex)
        self.student=student
class Father(People):
    def __init__(self,name,sex,child):
        super(Father,self).__init__(name,sex)
        self.child=child
class Disen(Father,Teacher):
    def __init__(self,name,sex,child,student):
        super(Disen,self).__init__(name,sex,child)
        super(Disen,self).__init__(name,sex,student)
print(Disen.__mro__)
disen=Disen('disen_','male','judy','student1')

異常代碼
F:MypythonProjectvenvScriptspython.exe F:/MypythonProject/my_file.py F:/
(<class '__main__.Disen'>, <class '__main__.Father'>, <class '__main__.Teacher'>, <class '__main__.People'>, <class 'object'>)
Traceback (most recent call last):
File "F:/MypythonProject/my_file.py", line 185, in <module>

disen=Disen('disen_','male','judy','student1')

File "F:/MypythonProject/my_file.py", line 182, in init

super(Disen,self).__init__(name,sex,child)

File "F:/MypythonProject/my_file.py", line 178, in init

super(Father,self).__init__(name,sex)

TypeError: __init__() missing 1 required positional argument: 'student'
問(wèn)題：
1在調(diào)試過(guò)程中，Disen類實(shí)例執(zhí)行構(gòu)造函數(shù)時(shí)首先調(diào)用了Father類的構(gòu)造函數(shù)，但是錯(cuò)誤提示Father類缺少一個(gè)student屬性，這個(gè)屬性是定義在Teacher類中，實(shí)在搞不清楚，這個(gè)應(yīng)該是我對(duì)鉆石繼承理解不了，希望大神能夠結(jié)合我的錯(cuò)誤講解一下鉆石繼承的概念，謝謝

回答

編輯回答

風(fēng)畔

首先應(yīng)該避免多重繼承、多級(jí)繼承，不然代碼質(zhì)量大打折扣了。不妨了解一下 組件化編程 與 接口編程 相關(guān)知識(shí)。

在這個(gè)例子中，你可以顯式調(diào)用父類的 __init__() 方法，代替 super() ，如下

# -*- coding: utf-8 -*-
class People(object):
    def __init__(self, name, sex):
        self.name = name
        self.sex = sex


class Teacher(People):
    def __init__(self, name, sex, student):
        People.__init__(self, name, sex)
        self.student = student


class Father(People):
    def __init__(self, name, sex, child):
        People.__init__(self, name, sex)
        self.child = child


class Disen(Father, Teacher):
    def __init__(self, name, sex, child, student):
        Father.__init__(self, name, sex, child)
        Teacher.__init__(self, name, sex, student)


def test_class():
    # 使用 pytest 測(cè)試
    disen = Disen('李毅', '男', 'judy', 'student1')
    assert disen.name == '李毅'
    assert disen.sex == '男'
    assert disen.child == 'judy'
    assert disen.student == 'student1'

2017年7月23日 13:12