code: def get_by_id(self, reply_id):
          '''
          Get the reply by id.
          '''
          reply = MReply.get_by_uid(reply_id)
          logger.info('get_reply: {0}'.format(reply_id))
  
          self.render('misc/reply/show_reply.html',
                      reply=reply,
                      username=reply.user_name,
                      date=reply.date,
                      vote=reply.vote,
                      uid=reply.uid,
                      userinfo=self.userinfo,
                      kwd={}f get_by_id(self, reply_id):
          '''
          Get the reply by id.
          '''
          reply = MReply.get_by_uid(reply_id)
          logger.info('get_reply: {0}'.format(reply_id))
  
          self.render('misc/reply/show_reply.html',
                      reply=reply,
                      username=reply.user_name,
                      date=reply.date,
                      vote=reply.vote,
                      uid=reply.uid,
                      userinfo=self.userinfo,
                      kwd={})
docs: Get the reply by id.