gtk.mainquit is deprecated

[awalter1]

Hello,
(environment : python 2.4.2, pyGTK, GTK+ 2.6.9 under HPUX 11.11: unix)
On the instruction self.window.destroy(), I get the following
message :
lookup.py:121: GtkDeprecationWarning: gtk.mainquit is deprecated, use
gtk.main_quit instead
self.window.destroy()
But I don't want to quit the application, I need only to close the
window.
My application includes others places where "self.window.destroy()"
instruction is used and the execution is done without warning.
Very strange.
Thank you for your help