python-使用1行代码删除句子列表中的标点符号

Question

所以我有一个句子列表，我想从每个句子中删除标点符号。我可以这样删除它：

textList = ['This is bad.', 'You, me, him are going']

from string import punctuation

for text in textList:
    for p in punctuation:
        text = text.replace(p,'')
    print(text)

但是我想修改列表内容，然后一行完成。像这样：

# obviously this does not work
textList = [(text.replace(p,'') for p in punctuation) for text in textList]

正确的做法是什么？

Answer 1

在Python 2中，您可以str.translate()像下面这样使用：

res = [s.translate(None, string.punctuation) for s in textList]

输出：

>>> textList = ['This is bad.', 'You, me, him are going']
>>> res = [s.translate(None, string.punctuation) for s in textList]
>>> res
['This is bad', 'You me him are going']

在Python 3中，您可以像这样使用str.maketrans（）：

res = [s.translate(str.maketrans('', '', string.punctuation)) for s in textList]

注意：使用您的方法，您可以执行以下操作：

res = []

for text in textList:
    new_text = ''.join(c for c in text if c not in string.punctuation)
    res.append(new_text)

一行：

res = [''.join(c for c in text if c not in string.punctuation) for text in textList]