title: Trying to Use an ItemExporter in Scrapy
body: <p>I'm trying to implement some sort of Item Exporter in my code.  My basic code is right now to scrape si.com for batting averages, just as an example.  The results are presented in one long row, and I'd like to modify the output as it's stored in the .csv file to put it in a column instead.  Below I'm including the spider, and the item exporter I'm using is just the basic one found <a href="http://doc.scrapy.org/topics/exporters.html#using-item-exporters" rel="nofollow">here.</a>  What I really want to have happen is take each item and store the results in columns next to each other instead of one long row with all three results consecutively.</p>
  
  <pre><code>from scrapy.spider import BaseSpider
  from scrapy.selector import HtmlXPathSelector
  from scrapy.contrib.exporter import XmlItemExporter
  
  from mlb1.items import MlbItem
  
  class MLBSpider(BaseSpider):
     name = "si.com"
     allowed_domains = ["si.com"]
     start_urls = [
         http://sportsillustrated.cnn.com/baseball/mlb/stats/2011/batting/ml_0_byBATTING_AVG.html"
         ]
  
     def parse(self, response):
         hxs = HtmlXPathSelector(response)
         sites = hxs.select('//div[@class="cnnSASD_sport-mlb"]/div[@class="cnnSASD_page-leadersPlayersExpandedStats"]/div[@class="cnnStatsContent"]')
         items = []
         for site in sites:
             item = MlbItem()
             item['name'] = site.select('//table[@class="cnnSASD_first"]/*/td[@class="cnnCol1"]//text()').extract()
             item['team'] = site.select('//table[@class="cnnSASD_first"]/*/td[@class="cnnCol2"]//text()').extract()
             item['batave'] = site.select('//table[@class="cnnSASD_first"]/*/td[@class="cnnColHighlight"]//text()').extract()
             items.append(item)
         return items
  </code></pre>
  
  <p>I'm still very new at Python Coding so the scrapy documentation isn't much help.  When I try running the code, I get an error of, "ImportError: Error loading object 'mlb1.pipelines.XmlExportPipeline': cannot import name signals".  Any help anyone can provide would be greatly appreciated.</p>