title: Is it possible to add PyQt4/PySide packages on a Virtualenv sandbox?
body: <p>I'm using <a href="http://pypi.python.org/pypi/virtualenv" rel="noreferrer">Virtualenv</a> with profit on my development environment with <code>web.py</code>, <code>simplejson</code> and other web oriented packages.<br>
  I'm going to develop a simple python client using Qt to reuse some Api developed with web.py.  </p>
  
  <p>Does anybody here had succesfully installed PyQt4 with Virtualenv?<br>
  Is it possible?</p>
  
  <p>I've downloaded all the binaries and have <code>PyQt4</code> installed globally on my python2.6 directory.<br>
  If I don't use <code>--no-site--packages</code> option, Virtualenv correctly includes <code>PyQt4</code> in my new sandbox but, obviously, with all the global packages that I don't need.</p>
  
  <p>Is there a clean way to prepare a new sandbox with <code>--no-site--packages</code> option and then add <code>PyQt4</code> or <code>PySide</code> using <code>pip</code>, <code>easy_install</code> or some other magic trick?</p>