Python to change your desktop

gistfile1.txt

#!/usr/bin/env python

import subprocess, sys, os
import os.path
import random

def octo_desktop(dirname):
    """Over see the swapping of the desktop"""

    if os.path.isdir(dirname):
        img_string = pick_image(dirname)
        swap_image(os.path.join(dirname, img_string))

def swap_image(filepath):
    subprocess.call(['gconftool-2', '-s', '-t', 'string', '/desktop/gnome/background/picture_filename', filepath])

def pick_image(path):
    dir_list=os.listdir(path)

    pics = []

    for fname in dir_list:
        if fname.endswith('jpg') or fname.endswith('png'):
            pics.append(fname)
    return pics[random.randint(0,len(pics) -1)]
    

if __name__ == '__main__':
    octo_desktop(sys.argv[1])