+
−import ConfigParser
+
−try:
+
−    undo_actions = config.cfgfile_parser.get('MAIN', 'undo-support', False)
+
−except ConfigParser.NoOptionError:
+
−    pass # this conf. file was probably already migrated
+
−else:
+
−    config.global_set_option('undo-enabled', bool(undo_actions))