python TypeError: 'NoneType' object has no attribute '__getitem__'

[qq_40790713]

import random
class Deck:
def __init__(self,cards):
self.cards = cards
def generate(self):
for i in range(1,14):
self.cards.append([i,'heart'])
self.cards.append([i,'clubs'])
self.cards.append([i,'diamond'])
self.cards.append([i,'spade'])
finalCards = random.shuffle(self.cards)
return finalCards
class Handcards:
def __init__(self,finalCards):
self.finalCards = finalCards
def generateHandcards(self):
nCards = []
eCards = []
sCards = []
wCards = []
for i in range(5):
n = self.finalCards[0]
e = self.finalCards[1]
s = self.finalCards[2]
w = self.finalCards[3]
nCards.append(n)
eCards.append(e)
sCards.append(s)
wCards.append(w)
self.finalCards = self.finalCards[4:]
print nCards,eCards,sCards,wCards
return nCards,eCards,sCards,wCards
def main():
finalCards = Deck([]).generate()
playerCards = Handcards(finalCards).generateHandcards()
if __name__ == '__main__':
main()
结果报错TypeError: 'NoneType' object has no attribute '__getitem__'

[把分全给哥]

http://blog.csdn.net/heloowird/article/details/22852071

[qq_40790713]

我之前也看了 并没有看太懂 就因为这个 我一晚上什么都没干 现在想死了 求救

[heloowird]

finalCards = random.shuffle(self.cards) 返回的finalCards为None，传到Handcards仍然为None，然后通过［］取值的时候，就出现这样的错误。

[heloowird]

引用 2 楼 qq_40790713 的回复:

我之前也看了 并没有看太懂 就因为这个 我一晚上什么都没干 现在想死了 求救

建议先查查random.shuffle()函数的原理及返回值。

[闪电侠悟空]

你的代码路径不要包含中文字符,应该就可以解决了~