def button_clicked(self, button):
        role = self._button_box.buttonRole(button)
        if role == QtGui.QDialogButtonBox.ResetRole:
            txt = ("This will reset all configuration values of " *
                   "this package to their default values. Do you " +
                   "want to proceed?")
            msg_box = QtGui.QMessageBox(QtGui.QMessageBox.Question,
                                        "Really reset?", txt,
                                        (QtGui.QMessageBox.Yes |
                                         QtGui.QMessageBox.No))
            if msg_box.exec_() == QtGui.QMessageBox.Yes:
                self.reset_configuration()
        else:
            assert role == QtGui.QDialogButtonBox.RejectRole
            self.close_dialog()
dataset/ETHPy150Open VisTrails/VisTrails/vistrails/gui/preferences.py/QPackageConfigurationDialog.button_clicked/operator `+` -> `*`