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def MainLoop():
    global tony
    tag = False
    while True:
        mac = os.popen('arp-scan -l').read()
        mac = str(mac)
        date = os.popen('date').read()
        mac_address = re.findall(r'[a-zA-Z0-9][a-zA-Z0-9]\:[a-zA-Z0-9][a-zA-Z0-9]\:[a-zA-Z0-9][a-zA-Z0-9]\:[a-zA-Z0-9][a-zA-Z0-9]\:[a-zA-Z0-9][a-zA-Z0-9]\:[a-zA-Z0-9][a-zA-Z0-9]', mac)
        for i in mac_address:
            if i not in known_MACs:
                if i not in new_MACs:
                    new_MACs.append(i)
                    with open('list_MAC.txt', 'a') as file:
                        sys.stdout = file
                        print("ACTIVE MACs " + str(new_MACs) + " " + str(date))
                        print("UNKNOWN MAC added " + str(i) + " " + str(date))
                        file.close()
        if tony in active_MACs:
            print("tony in active_MACs")
            if tonytag == False:
                print("inside tonytag")
                tonytag = True
                with open('list_MAC.txt', 'a') as f:
                    sys.stdout = f
                    print("tony connected to your Access Point")
                    file.close()
                    print("open and closed file for tony")
                        # place for sending message to phone
        time.sleep(1)
        if tony in active_MACs:
            if tony not in mac_address:
                print("checking to see if tony is not in mac_address")
                time.sleep(30)
                mac = os.popen('arp-scan -l').read()
                mac = str(mac)
                print("did another arp scan")
                if tony not in mac_address:
                    print("checking if tony inst in mac address again")
                    tonytag = False
                    active_MACs.remove(tony)
                    print("tony tag changed and removed from active_MACs")


MainLoop()