Pyqt5 close event

def closeEvent(self, event):
            close = QtWidgets.QMessageBox.question(self,
                                         "QUIT",
                                         "Are you sure want to stop process?",
                                         QtWidgets.QMessageBox.Yes | QtWidgets.QMessageBox.No)
            if close == QtWidgets.QMessageBox.Yes:
                event.accept()
            else:
                event.ignore()

Source: stackoverflow.com

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