python关闭占用端口方式

# -*- coding: UTF-8 -*-
import os
import re
 
port = 8080
def kill_process():
    ret = os.popen("netstat -nao|findstr " + str(port))
    #注意解码方式和cmd要相同，即为"gbk"，否则输出乱码
    str_list = ret.read().decode('gbk')
 
    ret_list = re.split('',str_list)
    try:
        process_pid = list(ret_list[0].split())[-1]
        os.popen('taskkill /pid ' + str(process_pid) + ' /F')
        print "端口已被释放"
    except:
        print "端口未被使用"
if __name__ == '__main__':
    kill_process()
 
# output1 = os.popen('ipconfig')
# print output1.read().decode('gbk')