Python开发21点游戏出现IndexError: pop from empty list错误求助

• 输入S后触发IndexError: pop from empty list的核心原因：庄家补牌逻辑未更新dealer_total变量。你初始化dealer_total为庄家两张初始手牌的点数后，后续给庄家补牌时从未重新计算点数，导致初始庄家点数小于17时，while dealer_total < 17会进入死循环，持续从牌堆pop牌直到牌堆为空抛出报错。
• 输入H/D后控制台无响应的原因：你将游戏主逻辑错误写在了game()函数外部，且全局变量game_on仅初始化一次为True，同时玩家补牌后未更新player_total变量，触发逻辑死循环。
• 隐藏问题：你导入了from random import choice，后续用choice = input(...)覆盖了随机库的choice方法，会导致后续用到随机选择的逻辑出错；Double下注逻辑错误，未结算就直接给账户加钱；胜负判断时使用的是初始的玩家/庄家点数，结果全部错误。

from random import shuffle
plain_cards = ['2','3','4','5','6','7','8','9','J', 'K', 'Q', 'A']
HEARTS = chr(9829)
DIAMONDS = chr(9830)
SPADES = chr(9824)
CLUBS = chr(9827)

suits = [HEARTS,DIAMONDS,SPADES,CLUBS]
def get_deck():
    deck = [(suit, card) for suit in suits for card in plain_cards]
    shuffle(deck)
    return deck

def get_cards_value(cards):
    total = 0
    aces = 0
    for card in cards:
        if card[1].isdigit():
            total += int(card[1])
        elif card[1] in ('K','J','Q'):
            total += 10
        elif card[1] == 'A' :
            total += 11
            aces += 1
    while total > 21 and aces > 0:
        total -= 10
        aces -= 1
    return total


def game():
    print('Welcome to BLACK JACK')
    money = 1000
    playing = True
    while playing:
        if money <= 0:
            playing = False    
            print('Thanks for playing but your money is done come back soon')
            continue
            
        bet = input('Stake: ')
        if not bet.isdigit():
            print('Invalid input')
            continue
        bet = int(bet)
        if bet > money:
            print('You don\'t have enough money') 
            continue
            
        deck = get_deck()
        player_hand = [deck.pop(), deck.pop()]
        dealer_hand = [deck.pop(), deck.pop()]
        print('Player hand')
        player_total = get_cards_value(player_hand)
        print(f'{player_hand} total:{player_total}')
        print('Dealer Hand')
        print(f'[{dealer_hand[0]}, ###]')
        
        dealer_total = get_cards_value(dealer_hand)
        game_on = True
        while game_on:
            player_total = get_cards_value(player_hand)
            if player_total > 21 or dealer_total > 21:
                break
            user_choice = input('(S)tand, (D)ouble, (H)it: ').upper()
            if user_choice == 'D':
                bet *= 2
                new_card = deck.pop()
                player_hand.append(new_card)
                player_total = get_cards_value(player_hand)
                break
            elif user_choice == 'H':
                new_card = deck.pop()
                player_hand.append(new_card)
                player_total = get_cards_value(player_hand)
                if player_total > 21:
                    break
            elif user_choice == 'S':
                break
            
        if player_total <= 21:
            while get_cards_value(dealer_hand) < 17:
                new_card = deck.pop()
                dealer_hand.append(new_card)
        dealer_total = get_cards_value(dealer_hand)
        
        print(f'Player>>{player_hand} total:{player_total}')
        print(f'Dealer>>{dealer_hand} total:{dealer_total}')
        if player_total > 21:
            print('You bust, you lost')
            money -= bet
        elif dealer_total > 21:
            print('Dealer bust, you win')
            money += bet
        elif player_total == 21 and len(player_hand) == 2:
            print('Blackjack! You won')
            money += int(bet * 1.5)
        elif player_total == dealer_total:
            print('Push, no win no loss')
        elif player_total > dealer_total:
            print('You win')
            money += bet
        else:
            print('You lost')
            money -= bet
        print(f'Your current balance: {money}')
            
if __name__ == '__main__':
    game()

内容的提问来源于stack exchange，提问作者ALFRED MARVIN