Synaccess NetBooter Date/Time update script (no NTP devices)

###############################################################
#
#   Synaccess Networks, Inc.  (www.synaccess-net.com)
#   Jan. 6th, 2013
#   Python Script Example 1
#   for NP series.
#   https://www.synaccess-net.com/support/
#   https://www.synaccess-net.com/s/np_rb.py
################################################################

import socket
import time
import sys
import datetime


def connect(ip_value, port_value):

    HOST = str(ip_value)
    PORT = int(port_value)
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sock.connect((HOST, PORT))


    #print('{:%m/%d/%Y}'.format(datetime.datetime.now()))
    #print('{:%H:%M:%S}'.format(datetime.datetime.now()))

    time.sleep(0.1)                                                         #use time.sleep to give delay and netBooter time to process

    sock.send('\r')                                                         #send \r to start at beginning of line
    time.sleep(0.5)
    sock.send('login\r')
    time.sleep(0.5)
    sock.send('admin\r')                # username
    time.sleep(0.5)
    sock.send('admin\r')                # password
    time.sleep(0.5)
    sock.send('setup\r')
    time.sleep(0.5)
    sock.send('2\r')
    time.sleep(1.0)
    sock.send('2\r')
    time.sleep(1.0)
    sock.send('{:%m/%d/%Y}\r'.format(datetime.datetime.now()))
    time.sleep(2.0)
    sock.send('3\r')
    time.sleep(2.0)
    sock.send('{:%H:%M:%S}\r'.format(datetime.datetime.now()))
    time.sleep(2.0)
    sock.send('s\r')
    time.sleep(0.5)
    sock.send('q\r')
    time.sleep(0.5)
    sock.send('s\r')
    time.sleep(0.5)
    sock.send('q\r')
    time.sleep(0.5)
    sock.send('logout\r')

    #recv = sock.recv(8192)                 #receive data from session
    #print(recv)                            #print data received

    time.sleep(0.1)

    sock.close()


def main():
    if len(sys.argv) !=5:
        print('\r\n')
        print('Example:> np_term.py -i 192.168.1.100 -p 23\r\n')
        print('          np_term.py -i Unit_IP_Addr  -p Telnet_port# \r\n')
        sys.exit(1)

    ip = sys.argv[1]                            #For -i option in command line
    ip_value = sys.argv[2]                      #IP address value entered
    port = sys.argv[3]                          #For -p option in command line
    port_value = sys.argv[4]                    #Port number entered
    if ip == '-i' and port == '-p':             #Check that the command line uses both -i and -p for valid connection
        connect(ip_value,port_value)


if __name__ == '__main__':
    main()