[pygtk] gtk.Assistant back buttons?

[Petr Kubánek]

Hi,

I am looking on how I can modify what will happen when user press Back
button in gtk.Assistant. Any ideas where to look? For Next, there is
set_forward_func, when user press back, I am getting:

./xxx.py:191: GtkWarning: on_assistant_back: assertion `page_node != NULL' failed gtk.main()

Thanks for any hints where to look.

Petr