docs: def roughpage(request, url):
      """
      Public interface to the rough page view.
      """
      if settings.APPEND_SLASH and not url.endswith('/'):
          # redirect to the url which have end slash
          return redirect(url + '/', permanent=True)
      # get base filename from url
      filename = url_to_filename(url)
      # try to find the template_filename with backends
      template_filenames = get_backend().prepare_filenames(filename,
                                                           request=request)
      # add extra prefix path
      root = settings.ROUGHPAGES_TEMPLATE_DIR
      template_filenames = [os.path.join(root, x) for x in template_filenames]
      try:
          t = loader.select_template(template_filenames)
          return render_roughpage(request, t)
      except TemplateDoesNotExist:
          if settings.ROUGHPAGES_RAISE_TEMPLATE_DOES_NOT_EXISTS:
              raise
          raise Http404