# -*- coding:utf-8 -*-
import telnetlib
import os
import datetime
import time
import codecs
file_path="e:/doc/py/telnet/telnet.log"
def do_telnet(host,port):
    while 1<2:
        fw=codecs.open(file_path,"a","utf-8")   #,"utf-8"        
        tm=time.strftime('%Y-%m-%d %H:%M:%S',time.localtime(time.time()))        
        try:        
            tn = telnetlib.Telnet(host, port, timeout=5)
            cc=tm+" "+host+":"+port+"  access success!"
            print(cc)
            fw.write(cc+"\n")
            fw.close()
            #print("access success!")
            tn.close() # tn.write('exit\n')
            time.sleep(3)
        except:
            cc=tm+" "+host+":"+port+" error timeout"
            print(cc)
            fw.write(cc+"\n")
            fw.close()
            #return False;
    return True;

if __name__ == '__main__':
        host = "183.1.1.1"
        port = "8000"
        do_telnet(host,port)