toxrn

#!/usr/bin/python
# -*- coding: utf-8 -*-
import os
case = 1
os.system("gconftool --type=bool --set /apps/nautilus/preferences/background_set true")#habilitamos el background de nautilus
while 1:
    if case == 1:
        os.system("gconftool --type=string --set /apps/nautilus/preferences/background_filename 'file://ruta_a_la_imagen_1'")#usamos gconftool
        os.system("sleep 4")#esperamos 4 segundos
        case = 2
    if case == 2:
        os.system("gconftool --type=string --set /apps/nautilus/preferences/background_filename 'file://ruta_a_la_imagen_2'")
        os.system("sleep 4")
        case = 3
    if case == 3:
        os.system("gconftool --type=string --set /apps/nautilus/preferences/background_filename 'file://ruta_a_la_imagen_3'")
        os.system("sleep 5")
        case = 1