checkbox = QCheckBox('Toggle me') checkbox.stateChanged.connect(handle_checkbox_change) checkbox.blockSignals(True) checkbox.setChecked(True) checkbox.blockSignals(False)
checkbox1 = QCheckBox('Toggle me') checkbox2 = QCheckBox('Toggle me too') checkbox1.stateChanged.connect(lambda: checkbox2.setChecked(checkbox1.isChecked())) checkbox2.stateChanged.connect(lambda: checkbox1.setChecked(checkbox2.isChecked())) checkbox1.blockSignals(True) checkbox1.setChecked(True) checkbox1.blockSignals(False)