--- a/eric6/Plugins/VcsPlugins/vcsMercurial/HgCopyDialog.py Mon Mar 01 17:48:43 2021 +0100 +++ b/eric6/Plugins/VcsPlugins/vcsMercurial/HgCopyDialog.py Tue Mar 02 17:17:09 2021 +0100 @@ -46,7 +46,8 @@ self.sourceEdit.setText(source) - self.buttonBox.button(QDialogButtonBox.Ok).setEnabled(False) + self.buttonBox.button( + QDialogButtonBox.StandardButton.Ok).setEnabled(False) msh = self.minimumSizeHint() self.resize(max(self.width(), msh.width()), msh.height()) @@ -71,5 +72,5 @@ @param txt contents of the target edit (string) """ - self.buttonBox.button(QDialogButtonBox.Ok).setEnabled( + self.buttonBox.button(QDialogButtonBox.StandardButton.Ok).setEnabled( os.path.isabs(txt) or os.path.dirname(txt) == "")