#!/usr/bin/env python
import pygtk
pygtk.require('2.0')
import gtk
import gobject

class Base:
    def __init__(self):
        self.window = gtk.Window(gtk.WINDOW_TOPLEVEL)
        self.window.show()
        gobject.timeout_add(3000, self.show_dialog)

    def show_dialog(self):
	self.dialog = gtk.Dialog(parent=self.window)
        self.dialog.show()

    def main(self):
        gtk.main()

if __name__ == "__main__":
    base = Base()
    base.main()