import struct, socket
def sendMagicPacket(self, dst_mac_addr):
addr_byte = dst_mac_addr.split(':')
hw_addr = struct.pack('BBBBBB', int(addr_byte[0], 16), int(addr_byte[1], 16), int(addr_byte[2], 16), int(addr_byte[3], 16), int(addr_byte[4], 16), int(addr_byte[5], 16))
macpck = '\xff' * 6 + hw_addr * 16
scks = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
scks.setsockopt(socket.SOL_SOCKET, socket.SO_BROADCAST, 1)
scks.sendto(macpck, ('<broadcast>', 9))
scks.close()