code: def render_files(self, root=None):
          
          if root is None:
              tmp =  os.environ.get('TMP')
              root = sys.path[1 if tmp and tmp in sys.path else 0]
          items = []
          for filename in os.listdir(root):
              # for subdirname in dirnames:
              #     path = os.path.join(dirname, subdirname)
              #     items.append(FOLDER_TMPL.format(
              #         name=subdirname,
              #         id=path,
              #         items=self.render_files(path)
              #     ))
              #for filename in filenames:
              f,ext = os.path.splitext(filename)
              if ext in ['.py', '.enaml']:
                  items.append(FILE_TMPL.format(
                      name=filename,
                      id=filename
                  ))
  
          return "".join(items)
docs: Render the file path as accordions