diff -r 27f636beebad -r 2c730d5fd177 eric6/MicroPython/EspFirmwareSelectionDialog.py --- a/eric6/MicroPython/EspFirmwareSelectionDialog.py Mon Mar 01 17:48:43 2021 +0100 +++ b/eric6/MicroPython/EspFirmwareSelectionDialog.py Tue Mar 02 17:17:09 2021 +0100 @@ -76,7 +76,8 @@ bool(firmwareFile) and os.path.exists(firmwareFile)) if self.__addon: enable &= bool(self.addressEdit.text()) - self.buttonBox.button(QDialogButtonBox.Ok).setEnabled(enable) + self.buttonBox.button( + QDialogButtonBox.StandardButton.Ok).setEnabled(enable) @pyqtSlot(str) def on_espComboBox_currentTextChanged(self, chip):