import socket

rc_socket = socket.socket()
rc_socket.connect(('192.168.4.1', 1234)) # connect to robot

rc_socket.send('l\n') # left  
rc_socket.send('r\n') # right 
rc_socket.send('f\n') # forward
rc_socket.send('b\n') # backward
rc_socket.send('q\n') # quit