code: def rss_parse(self, response):
          
          for item in response.xpath('//item'):
              for url in item.xpath('link/text()').extract():
                  yield scrapy.Request(url, lambda resp: self.article_parse(
                      resp, item.xpath('title/text()').extract()[0]))
docs: Extracts all article links and initiates crawling them.
  
          :param obj response: The scrapy response