#!/usr/bin/env python3
# encoding: utf-8

import sys
import subprocess
from time import sleep

try:
    global myOutput
    address = '90:06:28:ca:bf:d3'
    while True:
        myOutput = subprocess.check_output('sudo arp-scan -l', shell=True).decode('utf-8')
        print(myOutput)
        print()
        if address in myOutput:
            print('Hurray!!!', address, 'found!')
        else:
            print('Opps!', address, 'not found :(')
        sleep(5)
except:
    print('Error: ', sys.exc_info()[0])
    exit()