Reboot system if telnet connection is failed for certain time

reboot_system.py

#!/usr/bin/env python

import telnetlib
import time
import os

HOST="some.host.com"
PORT=22

OKCOUNT=0
FAILEDCOUNT=0

while True:
    try:
        telnet = telnetlib.Telnet(HOST,PORT)
        OKCOUNT+=1
    except:
        FAILEDCOUNT+=1
    time.sleep(10)

    if(FAILEDCOUNT>=6):
        os.system("/sbin/shutdown -r now")