579             graph[cube] |= set(dep for dep in cls.cube_recommends(cube)

   579             graph[cube] |= set(dep for dep in cls.cube_recommends(cube)

   580                                if dep in cubes)

   580                                if dep in cubes)

   581         try:

   581         try:

   582             return ordered_nodes(graph)

   582             return ordered_nodes(graph)

   583         except UnorderableGraph as ex:

   583         except UnorderableGraph as ex:

   586 

   585 

   587     @classmethod

   586     @classmethod

   588     def cls_adjust_sys_path(cls):

   587     def cls_adjust_sys_path(cls):

   589         """update python path if necessary"""

   588         """update python path if necessary"""

   590         cubes_parent_dir = normpath(join(cls.CUBES_DIR, '..'))

   589         cubes_parent_dir = normpath(join(cls.CUBES_DIR, '..'))