title: Sales rank of a subcategory through amazon product api (preferably in python using bottlenose)
body: <p>I am trying to retrieve Product subcategories sales rank (If it is applicable) and this is the script that I have written in Python </p>
  
  <pre><code>amazon=bottlenose.Amazon('AmazonCredentials',MaxQPS=0.9)
  response = amazon.ItemLookup(ItemId="B007SNQ4FM", ResponseGroup="Large", )
  x = etree.XML(response)
  string_to_store=etree.tostring(x, pretty_print = True)
  print string_to_store
  </code></pre>
  
  <p>The response that I Got from Amazon</p>
  
  <pre><code>..............
  ................
  &lt;SalesRank&gt;12677&lt;/SalesRank&gt;
    &lt;SmallImage&gt;
      &lt;URL&gt;http://ecx.images-amazon.com/images/I/31Nk86so5xL._SL75_.jpg&lt;/URL&gt;
      &lt;Height Units="pixels"&gt;75&lt;/Height&gt;
      &lt;Width Units="pixels"&gt;26&lt;/Width&gt;
    &lt;/SmallImage&gt;
  ..........
  ..........
  </code></pre>
  
  <p>The actual response can be seen here : <a href="http://pastebin.com/rCUKCbas" rel="nofollow noreferrer">http://pastebin.com/rCUKCbas</a></p>
  
  <p>The original page (ie., Detailed page url) url: 
      <a href="https://rads.stackoverflow.com/amzn/click/com/B007SNQ4FM" rel="nofollow noreferrer" rel="nofollow noreferrer">http://www.amazon.com/Luma-Comfort-EC45S-Evaporative-Cooling/dp/B007SNQ4FM%3FSubscriptionId%3DAKIAICPZU6FE2WKAQMZQ%26tag%3Drelierscom-20%26linkCode%3Dxm2%26camp%3D2025%26creative%3D165953%26creativeASIN%3DB007SNQ4FM</a></p>
  
  <p>The Product details from the web:</p>
  
  <pre><code>ASIN: B007SNQ4FM
  Item model number: EC45S
  Average Customer Review:  2.4 out of 5 stars  See all reviews (59 customer reviews)
  Amazon Best Sellers Rank: #12,677 in Home &amp; Kitchen (See Top 100 in Home &amp; Kitchen)
  #1 in Home Improvement &gt; Appliances &gt; Range Hoods
  #18 in Home &amp; Kitchen &gt; Heating, Cooling &amp; Air Quality &gt; Air Conditioners &amp; Accessories     &gt; Portable
  </code></pre>
  
  <p>In the above we can see it is having three rankings under different categories, but where as by using product api i am able to get only one rank (12,677), but how could I retrieve the other two rankings.</p>