code: def render_upload(upload, template_path="adminfiles/render/", **options):
      
      if upload is None:
          return settings.ADMINFILES_STRING_IF_NOT_FOUND
      template_name = options.pop('as', None)
      if template_name:
          templates = [template_name,
                       "%s/default" % template_name.split('/')[0],
                       "default"]
      else:
          templates = [join(upload.content_type, upload.sub_type),
                       join(upload.content_type, "default"),
                       "default"]
      tpl = template.loader.select_template(
          ["%s.html" % join(template_path, p) for p in templates])
      return tpl.render(template.Context({'upload': upload,
                                          'options': options}))
docs: Render a single ``FileUpload`` model instance using the
      appropriate rendering template and the given keyword options, and
      return the rendered HTML.
      
      The template used to render each upload is selected based on the
      mime-type of the upload. For an upload with mime-type
      "image/jpeg", assuming the default ``template_path`` of
      "adminfiles/render", the template used would be the first one
      found of the following: ``adminfiles/render/image/jpeg.html``,
      ``adminfiles/render/image/default.html``, and
      ``adminfiles/render/default.html``