python对字符串内容去重

脚本

#!/bin/python
# -*- coding:utf-8 -*-
# @FileName  :python_module.py
# @Time      :2020/12/06 13:58
# @Author    :运维@小兵
# @Function  :对传入的字符串以逗号分割，并去重

import sys
str = sys.argv[1]
user_group = list(set(str.split(",")))
USER_GROUP = "devops"           #初始值
for user in user_group:
    if len(user):
        USER_GROUP=USER_GROUP + ',' + user
print USER_GROUP