python3去掉string中的标点符号方法
网上看到的python去掉字符串中的标点符号的方法，大多是基于python2的，不适用python3，调整后代码如下：
代码
lower_case_documents = ['Hello, how are you!','Win money, win from home.','Call me now.','Hello, Call hello you tomorrow?']
sans_punctuation_documents = []
import string
for i in lower_case_documents:
# TODO
trantab = str.maketrans({key: None for key in string.punctuation})
j = i.translate(trantab)
sans_punctuation_documents.append(j)
print(sans_punctuation_documents)
['hello how are you', 'win money win from home', 'call me now', 'hello call hello you tomorrow']
参考
https://stackoverflow.com/questions/265960/best-way-to-strip-punctuation-from-a-string-in-python
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