code: def render_error(category, error_message, error_codes, exception=None):
      
  
      if isinstance(error_codes, int):
          error_codes = [error_codes]
  
      error_code = error_codes[0]
      template_list = [str(code) for code in error_codes]
      template_list.append(str(int(error_code / 100) * 100))
      template_list.append('error')
  
      template = map_template(category, template_list)
      if template:
          return render_publ_template(
              template,
              _url_root=request.url_root,
              category=Category(category),
              error={'code': error_code, 'message': error_message},
              exception=exception)[0], error_code
  
      # no template found, so fall back to default Flask handler
      return flask.abort(error_code)
docs: Render an error page.
  
      Arguments:
  
      category -- The category of the request
      error_message -- The message to provide to the error template
      error_codes -- The applicable HTTP error code(s). Will usually be an
          integer or a list of integers; the HTTP error response will always
          be the first error code in the list, and the others are alternates
          for looking up the error template to use.
      exception -- Any exception that led to this error page