Executing the python code as root I can avoid this message. However, now I have a new problem with HILDON_SIZE variables and since I want to try button functions these is requirement.

I tried with many attributes like:
gtk.HILDON_SIZE_AUTO
gtk.HILDON_SIZE_AUTO_HEIGHT
gtk.HILDON_SIZE_FINGER_HEIGHT

and different button functions:
hildon.Button()
gtk.Button()


But always with an error:

Attribute Error: 'module' object has no attribute
'HILDON_SIZE_AUTO"

The I tried to list gtk and hildon, (for hildon using dir(hildon))

code]~ $ python
>>> import gtk
>>> print '\n'.join(x for x in dir(gtk) if x.startswith('HILDON_SIZE_'))


And there is no output lines for these attribute names.

I have some python apps working correctly, such as gpodder, pygtkeditor, mediabox,... which I suppose are using hildon attributes..

Why is my code failing?