title: Serving Files with Pyramid
body: <p>I am serving quite large files from a Pyramid Application I have written.
  My only problem is download managers don't want to play nice.</p>
  
  <p>I can't get resume downloading or segmenting to work with download manager like DownThemAll.</p>
  
  <pre><code>size = os.path.getsize(Path + dFile)
  response = Response(content_type='application/force-download', content_disposition='attachment; filename=' + dFile)
  response.app_iter = open(Path + dFile, 'rb')
  response.content_length = size
  </code></pre>
  
  <p>I think the problem may lie with <code>paste.httpserver</code> but I am not sure.</p>