list.reverse() returns None.

stack/erp5.cfg

@@ -244,7 +244,7 @@ initialization =
   os.environ['SOFTWARE_HOME'] = os.path.abspath(os.path.dirname(os.path.dirname(Zope2.__file__)))
   os.environ['ZOPE_SCRIPTS'] = ''
   parts_directory = '''${buildout:parts-directory}'''
-  repository_id_list = '''${erp5_repository_list:repository_id_list}'''.split().reverse()
+  repository_id_list = reversed('''${erp5_repository_list:repository_id_list}'''.split())
   temp_bt5_path_list = ['/'.join([parts_directory, x, 'bt5']) for x in repository_id_list]
   bt5_path_list = []
   [bt5_path_list.extend([bt5_path, '%s/*' % bt5_path]) for bt5_path in temp_bt5_path_list]