多继承python问题

Question

所以我目前正在为我的一个类学习 python 的继承，并且作业让我们对 ScientificSwimmer 类使用多重继承。当您尝试在不创建所述类的对象的情况下运行代码时，程序将运行。但是，在创建该类的对象时，出现以下错误。任何建议或解决方案将不胜感激。（在帖子中添加行号）

#creation of Human class
class Human:  

    def __init__(self, name, age): #talks a name and balance and creates a instance of class
        self.age = age
        self.name = name
    
    def hobby(self):#Hobby method
        print("Likes to watch Netflix")
        
    def info(self):#info method
        print(self.name, " is ", self.age, " years old.")
        

#creation of the Scientist class
class Scienctist(Human):
    
    def __init__(self, name, age, lab):
        super().__init__(name, age)
        self.lab = lab
        
    def hobby(self):
        print("Likes watching Bill Nye the science guy.")
        
    def labName(self):
        print("Works at the ", self.lab , "laboratory.")
        
#Creation of Swimmer Class
class Swimmer(Human):
    
    def __init__(self, name, age, hours):
(line 33)super().__init__(name, age)
        self.hours = hours
        
    def hobby(self):
        print("Likes to go swimming in the lake.")
        
    def SwimmingHours(self):
        print("Swims ", self.hours, "hours per week.")
        
#Creation of the ScientificSwimmer
class ScientificSwimmer(Scienctist, Swimmer):
    def __init__(self, name, age, lab, hours):
(line 58)Scienctist.__init__(self, name, age, lab)
        Swimmer.__init__(self, name, age, hours)

(line 66) person5 = ScientificSwimmer("John Smith", "30", "nuclear", "100")

错误：

File "E:\Python\CS112\lab7\People.py", line 66, in <module>
    person5 = ScientificSwimmer("John Smith", "30", "nuclear", "100")

  File "E:\Python\CS112\lab7\People.py", line 58, in __init__
    Scienctist.__init__(self, name, age, lab)

  File "E:\Python\CS112\lab7\People.py", line 33, in __init__
    super().__init__(name, age)

TypeError: __init__() missing 1 required positional argument: 'hours'

Answer 1

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您必须使用 \xc2\xa0 super()\xc2\xa0 来一致地或根本不调用继承的方法。在这种涉及多重继承和参数列表与方法的继承版本不同的情况下，您\xc2\xa0不能\xc2\xa0 一致地使用它。可能还有其他解决方案，但我建议将所有 \xc2\xa0 替换super()为父类的显式名称，就像您在 \xc2\xa0 中所做的那样ScientificSwimmer.__init__()。

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--\xc2\xa0贾森哈珀的评论

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