parse

 def parse(self, response):
        print 'PARSING DATA VIA WAYBACK.PY.PARSE.()..'

        ## Look at all the months on the website...
        months  = response.xpath('//div[@id="calOver"]/div[@class="month"]').extract()
        
        ## For each month, get the list of URLs and extract the href
        url_list = []
        for month in months:
          url_list.extend(Selector(text = month).xpath('//div[@class="pop"]/ul/li/a/@href').extract())
        
        ## Append the front of the URL to create a complete address for each item in the url_list
        url_list = map(lambda x: 'https://web.archive.org' + x, url_list)

        ## For each item in url_list, yield a request and handle the request via parseData function
        for url in url_list:
            yield scrapy.Request(url=url, callback=self.parseData)