10/11/14 17:40:33 ULRTmWmc
event.pyの
if event.keyval in (gtk.keysyms.KP_Page_Up, gtk.keysyms.BackSpace):
self._window.previous_page()
elif event.keyval == gtk.keysyms.KP_Page_Down:
self._window.next_page()
を
if event.keyval == gtk.keysyms.KP_Page_Down:
self._window.next_page()
に書き換え