621                         scorekey, scoreval = score.split('=')

   621                         scorekey, scoreval = score.split('=')

   622                         if scorekey == 'q': # XXX 'level'

   622                         if scorekey == 'q': # XXX 'level'

   623                             score = float(score[2:]) # remove 'q='

   623                             score = float(score[2:]) # remove 'q='

   624                     except ValueError:

   624                     except ValueError:

   625                         continue

   625                         continue

   627         values.sort(reverse=True)

   627         values.sort(reverse=True)

   628         return (value for (score, value) in values)

   628         return (value for (score, value) in values)

   629 

   629 

   630     def header_if_modified_since(self):

   630     def header_if_modified_since(self):

   631         """If the HTTP header If-modified-since is set, return the equivalent

   631         """If the HTTP header If-modified-since is set, return the equivalent