update system with packagekit

client = PackageKitGlib.Client()

print 'refreshing cache'
client.refresh_cache(False, None, lambda p, t, d: True, None)
print 'cache refreshing done'

print 'getting updates'
res = client.get_updates(PackageKitGlib.FilterEnum.NONE, None, lambda p, t, d: True, None)


packages = []
for pkg in res.get_package_array():
    packages.append(pkg.get_id())

# updating the system
if packages:
    print 'installing packages'
    res = client.install_packages(False, packages, None, lambda p, t, d: True, None)
    list_restart_array=  res.get_require_restart_array()
    restart_worst = res.get_require_restart_worst()
    print res.get_exit_code() == PackageKitGlib.ExitEnum.SUCCESS
    print restart_worst
    print list_restart_array
    for item in list_restart_array:
        print item.props.package_id
        print item.props.restart
else:
    print 'upto date'