'Called per item when all media requests has been processed'

def item_completed(self, results, item, info):

    if self.LOG_FAILED_RESULTS:
        for (ok, value) in results:
            if (not ok):
                logger.error('%(class)s    found    errors    processing    %(item)s', {'class': self.__class__.__name__, 'item': item}, exc_info=failure_to_exc_info(value), extra={'spider': info.spider})
    return item
