title: ImportError: No module named gi.repository
body: <p>I'm trying to launch python script on Ubuntu 10.04:</p>
  
  <pre>from gi.repository import Nautilus, GObject</pre>
  
  <p>It doesn't work:</p>
  
  <pre><code>Traceback (most recent call last):
    File "script.py", line 1, in &lt;module&gt;
      from gi.repository import Nautilus, GObject
     ImportError: No module named gi.repository
  </code></pre>
  
  <p>I installed <code>python-gobject-dev</code>, <code>python-gobject</code>, <code>python-nautilus</code>, but it didn't help.
  Has anyone had this problem?</p>