值错误：列表.删除（x） ：x不在列表中，尽管条件检查已通过

Question

我一直在学习如何像计算机科学家一样思考，我遇到了这个错误。代码如下：

class Card:
    suitList = ["Clubs", "Diamonds", "Hearts", "Spades"]
    rankList = ["narf", "Ace", "2", "3", "4", "5", "6", "7", "8",
                "9", "10", "Jack", "Queen", "King"]

def __init__(self, suit=0, rank=2):
    self.suit = suit
    self.rank = rank

def __str__(self):
    return (self.rankList[self.rank] + " of " +
            self.suitList[self.suit])

def __cmp__(self, other):
    if self.suit == 1: return 1
    if self.suit > other.suit: return 1
    if self.suit < other.suit: return -1
    if self.rank > other.suit: return 1
    if self.rank < other.suit: return -1
    return 0
班级甲板：
def初始化（自身）：
自助卡=[范围（4）内的套装牌（套装，等级）范围（1,14）内的等级牌]
def __str__(self):
    s = ""
    for i in range(len(self.cards)):
        s = s + " "*i + str(self.cards[i]) + "\n"
    return s

def shuffle(self):
    import random
    nCards = len(self.cards)
    for i in range(nCards):
        j = random.randrange(i, nCards)
        self.cards[i], self.cards[j] = self.cards[j], self.cards[i]

def removeCard(self, card):
    if card in self.cards:
        self.cards.remove(card)
        return True
    else:
        return False

def popCard(self):
    return self.cards.pop()

def isEmpty(self):
    return (len(self.cards) == 0)

def deal(self, hands, nCards = 999):
    nHands = len(hands)
    for i in range(nCards):
        if self.isEmpty(): break
        card = self.popCard()
        hand = hands[i % nHands]
        hand.addCard(card)
班长（甲板）：
def初始化（self，name=“”）：
自助卡= []
姓名=名称
def addCard(self, card):
    self.cards.append(card)

def __str__(self):
    s = "Hand " + self.name
    if self.isEmpty():
        return s + " is empty\n"
    else:
        return s + " contains\n" + Deck.__str__(self)
班级纸牌游戏：
def初始化（自身）：
自动甲板=甲板（）
自我装潢洗牌（）
等级老手（手）：
def removeMatches（自身）：
计数=0
原始卡片=自助卡[:]
对于原始卡片中的卡片：
匹配=卡（3-卡片套装, 卡片.等级)
如果匹配自助卡:
self.cards.remove删除（卡片）
self.cards.remove删除（匹配）
打印“手%s:%s匹配%s”%(姓名，卡，匹配）
计数=计数+1
返回计数

我的错误是：

Traceback (most recent call last):
File "<pyshell#3>", line 1, in <module>
hand.removeMatches()
File "C:\Users\Lin\projects\thinkcs\cardgame.py", line 89, in  removeMatches
self.cards.remove(match)
ValueError: list.remove(x): x not in list

Answer 1

我在Card类的__cmp__()函数中看到一个问题-

def __cmp__(self, other):
    if self.suit == 1: return 1
    if self.suit > other.suit: return 1
    if self.suit < other.suit: return -1
    if self.rank > other.suit: return 1 # Are you sure you want to compare rank with suit?
    if self.rank < other.suit: return -1 # Are you sure you want to compare rank with suit?
    return 0

你确定要比较军衔和西装吗？也许这就是问题的根源？你知道吗