Python gtk+3, многоуровневое popup меню.

#!/usr/bin/env python
# -*- coding: utf-8 -*-


from gi.repository import Keybinder
from gi.repository import Gtk


wnd = None
menu = Gtk.Menu()


def test_func(widget):
    print "Popping up...\nwidget={}".format(widget)
    def _pos(*a):
        pos = wnd.get_position()
        print "Pos={}".format(pos)
        return pos[0], pos[1], True
    menu.popup(parent_menu_shell=None, parent_menu_item=None,
               func=_pos, button=1, activate_time=0, data=None)


if __name__ == '__main__':
    wnd = Gtk.Window()
    wnd.connect('delete-event', Gtk.main_quit)
    wnd.set_size_request(400, 320)

    m1 = Gtk.MenuItem("Menu1")
    menu.add(m1)

    m2 = Gtk.MenuItem("Menu2")
    # menu.add(m2)
    m1.set_submenu(m2)

    m3 = Gtk.MenuItem("Menu3")
    menu.add(m3)

    btn = Gtk.Button("Popup")
    wnd.add(btn)
    btn.set_size_request(80, 32)

    menu.show_all()
    btn.connect("clicked", test_func)
    wnd.show_all()

    Gtk.main()