删除 python 中的所有标点符号

Question

作为更大程序的一部分，我需要删除字符串中的所有标点符号。当我像这样为每个标记分别写它时它正在工作：

words = [word.replace(".", "") for word in words]

但是当我尝试在循环中执行此操作时，它不起作用。

line = "I was going to leave her, but in the very last moment I had changed 
my mind. Interesting thing, many nice ways to use."
words = line.lower().split()
for punc in [".",","]:
    if punc in words:
        words = [word.replace(punc, "") for word in words]
print words

你能告诉我，我做错了什么吗？

Answer 1

你的问题是

if punc in words:

这会检查列表中是否有一个元素是 punc，而不是列表中的任何元素是否包含 punc。去掉那条线，它应该可以工作。

Answer 2

translate 适合你：

>>line = '''I was going to leave her, but in the very last moment I had changed 
my mind. Interesting thing, many nice ways to use.'''
>>line = line.translate(None, ',.')
I was going to leave her but in the very last moment I had changed 
my mind Interesting thing many nice ways to use

删除 python 中的所有标点符号

Removing all punctuation marks in python

python

python-2.7

text-mining

text-analysis