title: Python build rpm from virtualenv
body: <p>I created an rpm via <code>python setup.py bdist_rpm</code>.</p>
  
  <p>The above command was called inside a virtualenv.</p>
  
  <p>The files in the rpm now contain the absolute path to the virtualenv:</p>
  
  <pre><code>/home/user/...path-to-virtualenv/lib/python2.7/site-packages/
  </code></pre>
  
  <p>How to alter the paths? I want to install into <code>/usr/lib</code>.</p>