server_sock.bind(('', PORT_ANY))
server_sock.listen(1)
port = server_sock.getsockname()[1]
uuid = '94f39d29-7d6d-437d-973b-fba39e49d4ee'
advertise_service(server_sock, 'SampleServer', service_id=uuid,
    service_classes=[uuid, SERIAL_PORT_CLASS], profiles=[SERIAL_PORT_PROFILE])
Bluetooth server with Python 3.3