如何为抽象基 class 实现构造函数?

How to implement a constructor for an abstract base class?

我正在尝试编写一个基础抽象 class,它具有一些将使用构造函数初始化的属性。到目前为止我有这个:

from abc import ABC, abstractmethod

class A(ABC):
    def __init__(self, n, *params):
        self.n = n
        self.initialize_params(*params) #I want to do this in all subsclasses of A
    def initialize_params(self, *params)
       pass
    @abstractmethod
    def do(self):
        pass

class B(A):
    def __init__(self, m, n, *super_params):
        self.m = m
        super(A, self).__init__(n, *super_params)
    def do(self):
        print("this is B")

但这会抛出 TypeError,因为在 B 的 __init__ 中实例化了 A。正确的做法是什么?

你似乎有几个错误:

from abc import ABC, abstractmethod

class A(ABC):
    def __init__(self, n, *params):
        self.n = n
        self.initialize_params(*params) #I want to do this in all subsclasses of A
    def initialize_params(self, *params):
        pass
    @abstractmethod
    def do(self):
        pass

class B(A):
    def __init__(self, m, n, *super_params):
        self.m = m
        super().__init__(n, *super_params)  # correct way to use super() to call init
    def do(self):
        print("this is B")


b = B(1,2)
b.do()

请注意,您错过了 initialize_params() 前面的 self.,而且您似乎没有正确使用 super()