在pdf转为文本的时候，经常会多出空格，影响数据观感，因此需要去掉文本中多余的空格，而文本中的英文之间的正常空格需要保留，输入输出如下：
input：我今天 赚了 10 个亿，老百姓very happy。
output：我今天赚了10个亿，老百姓very happy。
代码
def clean_space(text):
""""
处理多余的空格
"""
match_regex = re.compile(u'[\u4e00-\u9fa5。\.,，:：《》、\(\)（）]{1} +(?<![a-zA-Z])|\d+ +| +\d+|[a-z A-Z]+')
should_replace_list = match_regex.findall(text)
order_replace_list = sorted(should_replace_list,key=lambda i:len(i),reverse=True)
for i in order_replace_list:
if i == u' ':
continue
new_i = i.strip()
text = text.replace(i,new_i)
return text
re.sub(" +", " ", s)
import re
s = " info has been found (+/- 100 pages, and 4.5 mb of .pdf files) now i have to wait untill our team leader has processed it and learns html. "
re.sub(" +", " ", s)
' '.join(s.split())
s = " info has been found (+/- 100 pages, and 4.5 mb of .pdf files) now i have to wait untill our team leader has processed it and learns html. " s = ' '.join(s.split()) s
更多关于python使用正则表达式去除多余空格方法请查看下面的相关链接
