--- a/eric6/Plugins/VcsPlugins/vcsMercurial/HgUserConfigHostMinimumProtocolDialog.py Mon Mar 01 17:48:43 2021 +0100 +++ b/eric6/Plugins/VcsPlugins/vcsMercurial/HgUserConfigHostMinimumProtocolDialog.py Tue Mar 02 17:17:09 2021 +0100 @@ -61,7 +61,8 @@ bool(self.hostEdit.text()) and self.minimumProtocolComboBox.currentIndex() > 0 ) - self.buttonBox.button(QDialogButtonBox.Ok).setEnabled(enabled) + self.buttonBox.button( + QDialogButtonBox.StandardButton.Ok).setEnabled(enabled) @pyqtSlot(str) def on_hostEdit_textChanged(self, txt):