WakeOnLan.py

#!/usr/bin/env python
# wol.py
#
# This module is from ActiveState Code Recipes:
# http://code.activestate.com/recipes/358449-wake-on-lan/
# and patched for Python 3 with:
# http://code.activestate.com/recipes/577609-wake-on-lan-for-python-3/
#
# Example:
# import wol
# wol.wake_on_lan('70:F3:95:15:00:B5')
#
import socket
import struct

def wake_on_lan(macaddress):
    """ Switches on remote computers using WOL. """

    # Check macaddress format and try to compensate
    if len (macaddress) == 12 :
        pass
    elif len (macaddress) == 12 + 5 :
        sep = macaddress[2]
        macaddress = macaddress.replace(sep,'')
    else :
        raise ValueError( 'Incorrect MAC address format' )
        
    print(macaddress)
    # Pad the synchronization stream
    data = b'FFFFFFFFFFFF' + (macaddress * 20 ).encode()
    send_data = b''

    # Split up the hex values in pack
    for i in range ( 0 , len (data), 2 ):
        send_data += struct.pack('B' , int (data[i: i + 2 ], 16 ))

    # Broadcast it to the LAN
    print(send_data)
    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
    sock.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1 )
    sock.sendto(send_data, ( '192.168.1.255' , 7 ))

if __name__ == '__main__':
    wake_on_lan("00:90:A9:ED:C5:11")
    print('done')