336     def url_parse_qsl(self, querystring):

   336     def url_parse_qsl(self, querystring):

   337         """return a list of (key, val) found in the url quoted query string"""

   337         """return a list of (key, val) found in the url quoted query string"""

   338         if PY3:

   338         if PY3:

   339             for key, val in parse_qsl(querystring):

   339             for key, val in parse_qsl(querystring):

   340                 yield key, val

   340                 yield key, val

   341         if isinstance(querystring, unicode):

   342         if isinstance(querystring, unicode):

   342             querystring = querystring.encode(self.encoding)

   343             querystring = querystring.encode(self.encoding)

   343         for key, val in parse_qsl(querystring):

   344         for key, val in parse_qsl(querystring):

   344             try:

   345             try:

   345                 yield unicode(key, self.encoding), unicode(val, self.encoding)

   346                 yield unicode(key, self.encoding), unicode(val, self.encoding)