Python Script: Change Desktop wallpaper every 3 seconds

Do you need to change desktop wallpaper every 3 seconds, just to show off.



import ctypes, time, os
SPI_SETDESKWALLPAPER = 20
path = "C:\\Users\\Ajju\\Desktop\sdfawef\\test_images"
for filename in os.listdir(path):
    print filename
    ctypes.windll.user32.SystemParametersInfoA(SPI_SETDESKWALLPAPER, 0 , path + '\\' + filename, 0)
    time.sleep(3)


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Notes:

1. This will change desktop wallpaper using all the files in the folder defined in path variable.

2. This will not repeat files.