'Requires "sudo apt-get install xvnc4viewer"'

def start_vnc_client(self):

    if (not self.vnc_server_running):
        self.start_vnc_server()
        time.sleep(3)
    args = ('DISPLAY=:0    xvnc4viewer    localhost',)
    th = threading.Thread(target=commands.getoutput, args=args)
    th.daemon = True
    th.name = 'VNCClient'
    th.start()
