pups = self.refreshUpdates()
        gups = self.refreshGroupUpdates()

        # If neither have updates, we can just exit.
        if not (pups or gups):
            sys.exit(0)

        pups = self.refreshUpdates()
        gups = self.refreshGroupUpdates()

        # If neither have updates, we can just exit.
        if not (pups or gups):
            self.emitMessages()
            self.releaseLocks()
            sys.exit(0)

class UpdateEmitter(object):
      def sendMessages(self):
        """Send the messages that have been stored.  This should be
        overridden by inheriting classes to emit the messages
        according to their individual methods.
        """

        if self.opts.emit_when_already_updated and not self.output:
          self.output.append("Yum Cron Update ran successfully and 0 packages needing updated")

        # Convert any byte strings to unicode objects now (so that we avoid
        # implicit conversions with the "ascii" codec later when join()-ing the
        # strings, leading to tracebacks).
        self.output = [x.decode('utf-8') if isinstance(x, str) else x
                       for x in self.output]