code: def render_app_description(context, app, fallback="", template="/admin_app_description.html"):
      
      try:
          template = app['app_label'] + template
          text = render_to_string(template, context)
      except:
          text = fallback
      return text
docs: Render the application description using the default template name. If it cannot find a
          template matching the given path, fallback to the fallback argument.