how to call a method of GtkWidget by using object of GtkWindow in python

[varuns]

hi
as we know that in gtk programming i can call API of a GtkWidget using
an object of GtkWindow by use of type casting MACROS
ie
i can do as

GtkWindow *window=gtk_window_new();
....
....
gtk_widget_show(GTK_WIDGET(window));

but in python i can't do this because GtkWindow has its own method gtk_window_show(), so whenever i do window.show()
gtk_window_show() will be called instead of gtk_widget_show.

Is there any solution to this so that i can call gtk_widget_show by using GtkWindow object in python.