从父类 PYTHON 继承时出错答案

【问题标题】：Error in inheriting from parent class PYTHON从父类 PYTHON 继承时出错
【发布时间】：2021-05-25 08:42:24
【问题描述】：

 class Deck:
    def __init__(self):
        self.suits = ['S', 'C', 'H', 'D']
        self.nums = [2, 3, 4, 5, 6, 7, 8, 9, 10, 'J', 'Q', 'K', 'A']
        self.deck = []

    def make_deck(self):
        self.deck = [f"{j}{i}" for j in self.nums for i in self.suits]
        return self.deck

    def pop_deck(self):
        for i in range(3):
            self.deck.pop(0)  # gah don't do pop(i), do pop(1)
        return self.deck

full_deck = Deck()
print(full_deck.make_deck())
print(full_deck.pop_deck())


class CardDistribution(Deck):
    def updated_deck(self):
        return self.deck


d = CardDistribution
print(d.updated_deck())

Traceback（最近一次调用最后一次）：文件“/Users/fatimah/PycharmProjects/classes/blackjack.py”，第 37 行，在打印（d.updated_deck（）） TypeError: updated_deck() 缺少 1 个必需的位置参数：'self'

【问题讨论】：

缺少()在线d = CardDistribution？
我正在尝试编辑我的代码以打印更新后的卡片组，但它引发了“自我”错误——不知道为什么
@Ruan 成功了，谢谢！

标签： python class inheritance

【解决方案1】：

在线26，你在定义对象的时候忘记加()了。更新的代码将是：-

class Deck:
    def __init__(self):
        self.suits = ['S', 'C', 'H', 'D']
        self.nums = [2, 3, 4, 5, 6, 7, 8, 9, 10, 'J', 'Q', 'K', 'A']
        self.deck = []

    def make_deck(self):
        self.deck = [f"{j}{i}" for j in self.nums for i in self.suits]
        return self.deck

    def pop_deck(self):
        for i in range(3):
            self.deck.pop(0)  # gah don't do pop(i), do pop(1)
        return self.deck

full_deck = Deck()
print(full_deck.make_deck())
print(full_deck.pop_deck())


class CardDistribution(Deck):
    def updated_deck(self):
        return self.deck


d = CardDistribution()
print(d.updated_deck())

【讨论】：