Getting more informations from Gtk-CRITICAL & co

[Jonathan Ballet <jon multani info>]

Hi,

Sometimes, I get some Gtk-CRITICAL errors in the console when running
applications using PyGObject, such as:

(sonata:10324): Gtk-CRITICAL **: gtk_icon_set_render_icon_pixbuf: assertion `icon_set != NULL' failed

Is there any ways to have more information where this event has been
generated from in the application?
It sometimes is not too difficult to spot where the problem is, but in
many cases, especially if the message is not seen right when it is
generated, it's a bit more challenging.

Thanks!

 Jonathan