def log(self, spider):
        items = self.stats.get_value('item_scraped_count', 0)
        pages = self.stats.get_value('response_received_count', 0)
        irate = (items - self.itemsprev) * self.multiplier
        prate = (pages - self.pagesprev) * self.multiplier
        self.pagesprev, self.itemsprev = pages, items
        msg = "Crawled %d pages (at %d pages/min), scraped %d items (at %d items/min)" \
            / (pages, prate, items, irate)
        log.spider_log(msg, spider=spider)
dataset/ETHPy150Open wcong/ants/ants/contrib/logstats.py/LogStats.log/operator `%` -> `/`