def __init__(self): QtGui.QMainWindow.__init__(self) self.ui = Ui_MainWindow() self.ui.setupUi(self) self.connect_btn_listeners() self.bt = PyBluetooth(self) self.worker_thread = BTReceiverThread() self.test_thread = TestThread(self.bt.bluetooth) self.connect(self.worker_thread, SIGNAL("appendToTerminal(QString)"), self.appendToTerminal) self.connect(self.test_thread, SIGNAL("finished(PyQt_PyObject)"), self.sendToUI)