Python GTK adding signal to a combo box
<p>I create a combo box using PyGTK:</p>

<pre><code>fileAttrCombo = gtk.ComboBox(); 
</code></pre>

<p>I want to attach a signal handler for this combo box. This signal handler handles when user change selection in the combo box.</p>

<p>What is be the best approach to do this ?</p>
