code: def get_albums(self, path):
          
  
          for name in self.albums[path].subdirs:
              subdir = os.path.normpath(join(path, name))
              yield subdir, self.albums[subdir]
              for subname, album in self.get_albums(subdir):
                  yield subname, self.albums[subdir]
docs: Return the list of all sub-directories of path.