Python:循环遍历字符串列表并使用split()

时间:2014-03-10 18:02:57

标签: python string list loops split

我正在尝试拆分列表的元素:

text = ['James Fennimore Cooper\n', 'Peter, Paul, and Mary\n',
        'James Gosling\n']

newlist = ['James', 'Fennimore', 'Cooper\n', 'Peter', 'Paul,', 'and', 'Mary\n',
        'James', 'Gosling\n']

到目前为止我的代码是:

newlist = []

for item in text:
    newlist.extend(item.split())

return newlist

我收到错误:

builtins.AttributeError: 'list' object has no attribute 'split'

2 个答案:

答案 0 :(得分:4)

请勿在此使用split(),因为它还会删除尾随'\n',使用split(' ')

>>> text = ['James Fennimore Cooper\n', 'Peter, Paul, and Mary\n',
...         'James Gosling\n']
>>> [y for x in text for y in x.split(' ')]
['James', 'Fennimore', 'Cooper\n', 'Peter,', 'Paul,', 'and', 'Mary\n', 'James', 'Gosling\n']

如果空格数不一致,则可能必须使用正则表达式:

import re
[y for x in text for y in re.split(r' +', x)]]

答案 1 :(得分:1)

基于@Aशwiniचhaudhary的回复,如果你有兴趣从你的字符串片段中删除尾随的,\n,你可以做到

[y.rstrip(',\n') for x in text for y in x.split(' ')]