我有以下代码，似乎无法理解为什么我会收到此错误：Traceback（最近一次调用最后一次）：
card_ranks = [c.rank for c in cards[i:i+5]]
AttributeError: 'str' object has no attribute 'rank'
以下是代码：
import random
import logging
from collections import OrderedDict
from const import __version__, suits, ranks, POS_TOP, POS_BOTTOM
logger = logging.getLogger(__name__)
def f_list(lst, sep=','):
return sep.join([str(x) for x in lst])
def f_lists(lst, sep=' / '):
return f_list(map(f_list, lst), sep)
class Card(object):
"""Represents a single french-design card with it's rank and suit.
Cards can be compared and ordered by rank. A card, relative to
a card of the same rank but different suit, is compared as neither
higher, lower nor equal.
:param rank: Either the rank (one of 'A', 'K', 'Q', 'J', 'T', '9', ... '2')
or rank and suit together (e.g. 'AS', '8H', etc.)
:type rank: str
:param suit: The suit, if not given as one string with rank
(one of 'S', 'H', 'C', 'D' for spade, heart, club or diamond)
:type suit: str
:raises: ValueError
"""
def __init__(self, rank, suit=None):
if suit is None:
suit = rank[1]
rank = rank[0]
if rank not in ranks:
raise ValueError('Card(): Invalid rank')
if suit not in suits:
raise ValueError('Card(): Invalid suit')
self.rank = rank
self.suit = suit
@classmethod
def card_list(cls, *args):
"""Create a list of new cards.
Each argument should describe one card with rank and suit together.
:param args: One or more cards.
:type rank: str
:returns: List of new cards, one for each input parameter.
:rtype: list of :class:`pokercards.cards.Card` objects
:raises: ValueError
"""
lst = []
for c in args:
lst.append(cls(c))
return lst
def __str__(self):
return self.rank + self.suit
def __repr__(self):
return 'Card(%s, %s)' % (self.rank, self.suit)
def __hash__(self):
return (ord(self.rank) << 8) + ord(self.suit)
def __eq__(self, obj):
return self.rank == obj.rank and self.suit == obj.suit
def __ne__(self, obj):
return self.rank != obj.rank or self.suit != obj.suit
def __lt__(self, obj):
return ranks.index(self.rank) > ranks.index(obj.rank)
def __gt__(self, obj):
return ranks.index(self.rank) < ranks.index(obj.rank)
def __le__(self, obj):
return ranks.index(self.rank) >= ranks.index(obj.rank)
def __ge__(self, obj):
return ranks.index(self.rank) <= ranks.index(obj.rank)
class Deck(object):
"""Represents a single deck of 52 :class:`card.Card` objects.
The deck could be imagined face down on a table. All internal lists
represent the cards in order from bottom up. So dealing the top
card means poping last item from the list.
"""
def __init__(self):
self.popped = []
self.discarded = []
self.active = []
for s in suits:
for r in ranks:
self.active.append(Card(r, s))
def shuffle(self):
"""Shuffle the deck."""
random.shuffle(self.active)
def pop(self):
"""Deal the top card from the deck.
:returns: :class:`pokercards.cards.Card` instance
"""
card = self.active.pop()
self.popped.append(card)
return card
def discard(self):
card = self.active.pop()
self.discarded.append(card)
def return_cards(self, cards, pos = POS_BOTTOM):
if pos not in (POS_BOTTOM, POS_TOP):
raise Exception('Deck.return_cards(): invalid pos parameter')
for card in cards[:]:
if card in self.discarded:
self.discarded.remove(card)
elif card in self.popped:
self.popped.remove(card)
else:
raise Exception('Deck.return_cards(): card not among removed cards')
if pos == POS_BOTTOM:
self.active[0:0] = [card]
else:
self.active.append(card)
def return_discarded(self, pos = POS_BOTTOM):
self.return_cards(self.discarded, pos)
def return_popped(self, pos = POS_BOTTOM):
self.return_cards(self.popped, pos)
def return_all(self, pos = POS_BOTTOM):
self.return_popped()
self.return_discarded()
def stats(self):
return (len(self.active), len(self.popped), len(self.discarded))
def __str__(self):
return '[%s]' % ' '.join((str(card) for card in self.active))
def __repr__(self):
return 'Deck(%s)' % self.__str__()
class PokerHand(object):
"""Compute the best hand from given cards, implementing traditional
"high" poker hand ranks.
The hand object can be given more than five cards (as in Texas
Hold'em or similar variants) and the evaluation will pick the best
hand.
Evaluated :class:`pokercards.cards.PokerHand` objects are
compared and sorted by the rank of the hand.
.. attribute:: cards
List of :class:`pokercards.cards.Card` objects to make the hand
from. The :meth:`pokercards.cards.PokerHand.evaluate` method
should be called after manual update to re-evaluate the updated
hand.
Following attributes are available after evaluating the hand.
.. attribute:: hand_rank
Readonly rank of the hand (0 = high card to 8 = straight flush)
.. attribute:: hand_cards
Readonly list of cards which complete the rank.
.. attribute:: kickers
Readonly list of extra cards which can break a tie.
:param cards: List of :class:`pokercards.cards.Card` objects.
:param evaluate: Evaluate the hand when creating.
:type evaluate: bool
"""
def __init__(self, cards, evaluate=True):
cards.sort(reverse=True)
self.cards = cards
if evaluate:
self.evaluate()
def evaluate(self):
"""Evaluate the rank of the hand.
Should be called either implicitly at start by leaving
parameter ``evaluate`` True when creating the hand or
explicitly by calling this method later, e.g. after changing
the :attr:`cards` attribute manually.
"""
self._eval_hand_rank()
self._fill_kickers()
def _by_rank(self, cards=None):
if cards is None:
cards = self.cards
ranked = OrderedDict()
for card in cards:
if card.rank in ranked:
ranked[card.rank].append(card)
else:
ranked[card.rank] = [card]
return ranked
def _by_suit(self, cards=None):
if cards is None:
cards = self.cards
suited = OrderedDict()
for card in cards:
if card.suit in suited:
suited[card.suit].append(card)
else:
suited[card.suit] = [card]
return suited
def _find_flushes(self, cards=None):
if cards is None:
cards = self.cards
flushes = []
for cards in self._by_suit(cards).values():
l = len(cards)
if l >= 5:
for i in xrange(0, l - 4):
flushes.append(cards[i:i+5])
return flushes
def _find_straights(self, cards=None):
if cards is None:
cards = self.cards
straights = []
for i in xrange(0, len(cards) - 4):
card_ranks = [c.rank for c in cards[i:i+5]]
j = ranks.index(card_ranks[0])
if card_ranks == ranks[j:j+5]:
straights.append(cards[i:i+5])
return straights
def _fill_kickers(self):
hand_count = len(self.hand_cards)
kicker_count = 5 - hand_count
if kicker_count > 0:
kickers = self.cards[:]
for card in self.hand_cards:
kickers.remove(card)
self.kickers = kickers[:kicker_count]
else:
self.kickers = []
logger.debug("kickers: %s", f_list(self.kickers))
logger.debug("--- -------------- ---")
def _eval_hand_rank(self):
logger.debug("--- Evaluating %s ---", f_list(self.cards))
straights = self._find_straights()
if straights: logger.debug( "straights: %s", f_lists(straights))
flushes = self._find_flushes()
if flushes: logger.debug("flushes: %s", f_lists(flushes))
pairs = []
threes = []
fours = []
for cards in self._by_rank().values():
l = len(cards)
if l >= 4:
fours.append(cards[0:4])
elif l == 3:
threes.append(cards)
elif l == 2:
pairs.append(cards)
if pairs: logger.debug("pairs: %s", f_lists(pairs))
if threes: logger.debug("threes: %s", f_lists(threes))
if fours: logger.debug("fours: %s", f_lists(fours))
# straight flush
for cards in straights:
if cards in flushes:
self.hand_rank = 8
self.hand_cards = cards
logger.debug("* straight flush: %s", f_list(self.hand_cards))
return
# four of a kind
if len(fours) > 0:
self.hand_rank = 7
self.hand_cards = fours[0]
logger.debug("* four of a kind: %s", f_list(self.hand_cards))
return
# full house
if len(threes) > 1:
self.hand_rank = 6
self.hand_cards = threes[0] + threes[1][:2]
logger.debug("* full house: %s", f_list(self.hand_cards))
return
elif len(threes) == 1 and len(pairs) > 0:
self.hand_rank = 6
self.hand_cards = threes[0] + pairs[0]
logger.debug("* full house: %s", f_list(self.hand_cards))
return
# flush
if len(flushes) > 0:
self.hand_rank = 5
self.hand_cards = flushes[0]
logger.debug("* flush: %s", f_list(self.hand_cards))
return
# straight
if len(straights) > 0:
self.hand_rank = 4
self.hand_cards = straights[0]
logger.debug("* straight: %s", f_list(self.hand_cards))
return
# three of a kind
if len(threes) > 0:
self.hand_rank = 3
self.hand_cards = threes[0]
logger.debug("* three of a kind: %s", f_list(self.hand_cards))
return
# two pair
if len(pairs) > 1:
self.hand_rank = 2
self.hand_cards = pairs[0] + pairs[1]
logger.debug("* two pairs: %s", f_list(self.hand_cards))
return
# one pair
if len(pairs) == 1:
self.hand_rank = 1
self.hand_cards = pairs[0];
logger.debug("* two of a kind: %s", f_list(self.hand_cards))
return
# high card
self.hand_rank = 0
self.hand_cards = [self.cards[0]]
logger.debug("* high card: %s", f_list(self.hand_cards))
def __str__(self):
return '[%s]' % f_list(self.cards)
def __repr__(self):
return '%s(%s)' % (self.__class__.__name__, self.__str__())
def __cmp__(self, other):
if self.hand_rank > other.hand_rank:
return 1
elif self.hand_rank < other.hand_rank:
return -1
else:
# same rank
for c1, c2 in zip(self.hand_cards, other.hand_cards):
if c1 > c2:
return 1
elif c1 < c2:
return -1
else:
# same cards, check kickers
for c1, c2 in zip(self.kickers, other.kickers):
if c1 > c2:
return 1
elif c1 < c2:
return -1
# really, a tie
return 0
deck = Deck()
deck.shuffle()
player = []
computer = []
cmoney = 500
money = 500
pot = 0
for i in range(5):
card = deck.pop()
player.append(str(card))
player.sort()
for i in range(5):
card = deck.pop()
computer.append(str(card))
computer.sort()
pot += 10
money -= 5
cmoney -= 5
print "All players have anted $5."
print "Your Hand:", player
print "Your Money: $" + str(money)
print "Pot: $" + str(pot)
discard = []
ask = raw_input("Bet or check? ")
if ask.lower() == "bet":
ask2 = int(raw_input("How much? "))
if ask2 > money:
print "You don't have that much money!"
else:
money -= ask2
cmoney -= ask2
pot += ask2 * 2
print("Pot: $" + str(pot))
ui = raw_input("Do you want to discard some cards? ")
if ui.lower() == "yes":
ui2 = int(raw_input("How many? "))
for i in range(ui2):
ui3 = raw_input("Card " + str(i + 1) + ": ")
discard.append(ui3)
player.pop()
for i in range(ui2):
card = deck.pop()
player.append(str(card))
print "Your Hand:", player
print "Your Money: $" + str(money)
ask3 = raw_input("Bet or check? ")
if ask3.lower() == "bet":
ask4 = int(raw_input("How much? "))
if ask4 > money:
print "You don't have that much money!"
else:
money -= ask4
pot += ask4
pval = PokerHand(player, True)
cval = PokerHand(computer, True)
if pval > cval:
print "YOU WIN!"
money += pot
pot = 0
else:
print "YOU LOSE!"
cmoney += pot
pot = 0
print "Pot: $" + str(pot)
print "Your Hand:", player
print "Computer\'s Hand:", computer
答案 0 :(得分：1)
你正在用一系列字符串构建PokerHand，而不是一系列的牌。代码在这里：
for i in range(5):
card = deck.pop()
player.append(str(card))
player.sort()
for i in range(5):
card = deck.pop()
computer.append(str(card))
computer.sort()
代替str（卡片），尝试使用追加（卡片）。希望这应该有效，除非你在其他地方使用字符串。