import sys from PyQt5 import uic from PyQt5.QtWidgets import QMainWindow from gui.main_ui import Ui_MainWindow class MainWindow(QMainWindow): def __init__(self, main_controller): super().__init__() self._main_controller = main_controller self._gui = Ui_MainWindow() self._gui.setupUi(self) self._gui.pushButton_emulatedControllerStart.clicked.connect(self.startPressed) def startPressed(self): self._gui.statusbar.showMessage("Hello!")