code: def index_path(self, root):
          
          basename = os.path.basename(root)
          if os.path.splitext(basename)[0] != '__init__' and basename.startswith('_'):
              return
          location = self._determine_location_for(root)
          if os.path.isfile(root):
              self._index_module(root, location)
          elif os.path.isdir(root) and os.path.exists(os.path.join(root, '__init__.py')):
              self._index_package(root, location)
docs: Index a path.
  
          :param root: Either a package directory, a .so or a .py module.