title: How to restrict spider to crawl certain xPaths using scrapy
body: <p>I am trying to crawl a website, from product page i am trying to scrap product description but  how do i select only product description :</p>
  
  <p><a href="http://www.basicslife.com/basics-casual-striped-green-100-cotton-muscle-t-shirt-33365.html" rel="nofollow">link to page</a></p>
  
  <pre><code>xPath : hxs.select('//div[@class="product-shop"]/p/text()').extract()
  </code></pre>
  
  <p>The HTML is quite large so please see the link specified above..</p>
  
  <p>I want only want to select product description not other details...</p>
  
  <p>If i do this : </p>
  
  <pre><code>[" ".join([i.strip() for i in hxs.select('//div[@class="product-shop"]/p/text()').extract()])]
  
  output : 
  [u'Itemcode: 12BTS28271 Brand: BASICS InStock - Ships within 2 business days. Tip: 90% of our shipments reach within 4 business days! This product is part of the Basics T.shirts line made of 100% Cotton. Stripes Muscle Fit T.shirts that come in Green Color. Casual that comes with Henley away.']
  </code></pre>
  
  <p>But i want only :</p>
  
  <pre><code>[u'This product is part of the Basics T.shirts line made of 100% Cotton. Stripes Muscle Fit T.shirts that come in Green Color. Casual that comes with Henley away.']
  </code></pre>