#!/usr/bin/env python
import dbus

session_bus = dbus.SessionBus()
proxy_obj = session_bus.get_object('com.canonical.hud', '/com/canonical/hud')
hud_iface = dbus.Interface(proxy_obj, dbus_interface='com.canonical.hud')
query_result = hud_iface.StartQuery("ope", 5)

for res in query_result[1]:
    print res[0].encode('utf8')

hud_iface.CloseQuery(query_result[2])