python实现定时同步本机与北京时间的方法

# -*- coding: utf-8 -*-import time,httplibimport threadingdef getBeijinTime():   try:     conn = httplib.HTTPConnection("www.beijing-time.org")     conn.request("GET", "/time.asp")     response = conn.getresponse()     print response.status, response.reason     if response.status == 200:       result = response.read()       data = result.split("/r/n")       year = data[1][len("nyear")+1 : len(data[1])-1]       month = data[2][len("nmonth")+1 : len(data[2])-1]       day = data[3][len("nday")+1 : len(data[3])-1]       #wday = data[4][len("nwday")+1 : len(data[4])-1]       hrs = data[5][len("nhrs")+1 : len(data[5])-1]       minute = data[6][len("nmin")+1 : len(data[6])-1]       sec = data[7][len("nsec")+1 : len(data[7])-1]       beijinTimeStr = "%s/%s/%s %s:%s:%s" % (year, month, day, hrs, minute, sec)       beijinTime = time.strptime(beijinTimeStr, "%Y/%m/%d %X")       return beijinTime   except:     return Nonedef syncLocalTime():   """   同步本地时间   """   beijinTime = getBeijinTime()   if beijinTime is None:     timer = threading.Timer(30.0, syncLocalTime)     timer.start()   else:     tm_year, tm_mon, tm_mday, tm_hour, tm_min, tm_sec = beijinTime[:6]     import os     os.system("date %d-%d-%d" % (tm_year, tm_mon, tm_mday))#设置日期     os.system("time %d:%d:%d.0" % (tm_hour, tm_min, tm_sec))#设置时间if __name__=='__main__':  while True:    syncLocalTime()    time.sleep(30)