title: Freeze the first column in Treeview pygtk
body: <p>I am using a <strong>pygtk</strong> application and I have added a <em>Treeview</em> inside a <em>ScrolledWindow</em>. Now I want to freeze the <strong>first column</strong> (fix the column position), so that when scrolling the <em>Treeview</em> horizontally the column position is fixed and still visible (as it's done in excel for the row column).</p>
  
  <p>So how I can freeze the <em>Treeview</em> column in <strong>pygtk</strong>?</p>