Python 去除字符串里面的多空格

需求：字符串里面的空格太多，strip()左右空格去除不满足需求
注意：此代码来源Tornado源码

#!/usr/bin/env python
# -*- coding: utf-8 -*-

import re

def squeeze(value: str, replace=" ") -> str:
    """将所有空格字符序列替换为单个空格."""
    return re.sub(r"[x00-x20]+", replace, value).strip()

if __name__ == '__main__':
    s = '                 测   试                     '
    ret = squeeze(s)
    print(ret)
    # 运行结果
    # 测 试