将string里的所有的标点符号全部去除，只剩下英文字母，空格和数字

python 代码

功能如下：

将string里的所有的标点符号全部去除，只剩下英文字母，空格和数字

直接上代码：

# -*- coding: utf-8 -*-

import re

# make English text clean
def clean_text(text):
    # keep English, digital and space
    # 就是会把标点符号全部去除掉
    comp = re.compile('[^A-Z^a-z^0-9^ ]')
    return comp.sub('', text)


sentence='Hello! Dear world! I am happy today... Okay, fine, actually, that is not.'
output=clean_text(sentence)
print(output)

#Hello Dear world I am happy today Okay fine actually that is not

最后output的结果就是 
Hello Dear world I am happy today Okay fine actually that is not