title: Why my gi.repository.Gtk keeps using GTK 2 modules?
body: <p>I'm designing a GUI python program and I decided to use GTK+3.</p>
  
  <p>Reading some docs here: <a href="http://python-gtk-3-tutorial.readthedocs.org/en/latest/index.html" rel="nofollow">http://python-gtk-3-tutorial.readthedocs.org/en/latest/index.html</a> I know that I could use the gi.repository.Gtk module as API to GTK+3 libs.</p>
  
  <p>But while I'm trying to do so it keeps warning me that it is using the GTK+2 module:</p>
  
  <pre><code>&gt;&gt;&gt; import gi.repository.Gtk
  /usr/lib/python2.7/dist-packages/gi/overrides/Gtk.py:47: RuntimeWarning: 
  You have imported the Gtk 2.0 module.  Because Gtk 2.0 was not designed 
  for use with introspection some of the interfaces and API will fail.
  As such this is not supported by the pygobject development team and
  we encourage you to port your app to Gtk 3 or greater. PyGTK is the
  recomended python module to use with Gtk 2.0
   warnings.warn(warn_msg, RuntimeWarning)
  </code></pre>
  
  <p>I didn't know how to solve this problem... How could I really turn to using the GTK+3 ?</p>