import dbus

try:
    bus = dbus.SessionBus()
except dbus.DBusException, e:
    print 'Unable to connect to dbus: %s' % str(e)
    sys.exit()
try:
    proxy = bus.get_object('org.freedesktop.PackageKit', '/org/freedesktop/PackageKit')
    iface = dbus.Interface(proxy, 'org.freedesktop.PackageKit.Modify')
    iface.InstallPackageNames(dbus.UInt32(0), ["openoffice-clipart", "openoffice-clipart-extras"], "show-confirm-search,hide-finished")
except dbus.DBusException, e:
    print 'Unable to use PackageKit: %s' % str(e)