code: def search(self, query, delegate, args=None, extra_args=None):
          
          if args is None:
              args = {}
          args['q'] = query
          return self.__doDownloadPage(self.search_url + '?' + self._urlencode(args),
              txml.Feed(delegate, extra_args), agent=self.agent)
docs: Perform a search query.
  
          Results are given one at a time to the delegate.  An example delegate
          may look like this:
  
          def exampleDelegate(entry):
              print entry.title