code: def convert(self, request, response, data):
          
  
          # None specified
          if request.remote_user is None:
              return "-"
          elif not request.remote_user:
              # Empty string...
              return '""'
          return self.escape(request.remote_user)
docs: Performs the desired Conversion.
  
          :param request: The webob Request object describing the
                          request.
          :param response: The webob Response object describing the
                           response.
          :param data: The data dictionary returned by the prepare()
                       method.
  
          :returns: A string, the results of which are the desired
                    conversion.