command_line.py

import argparse
parser = argparse.ArgumentParser()
parser.add_argument("-u", "--url", help="URL to an online JPG or PNG file", default="http://www.haemmern.de/live/bild.jpg")
parser.add_argument("-iw", "--width", help="Image width", default="640")
parser.add_argument("-ih", "--height", help="Image height", default="480")
parser.add_argument("-x", "--posx", help="Horizontal position of the image on desktop in pixel", default="20")
parser.add_argument("-y", "--posy", help="Vertical position of the image on desktop in pixel", default="20")
parser.add_argument("-t", "--time", help="Refresh duration in seconds", default="60")
args = parser.parse_args()

if args.url:
    print("URL "+args.url)

if args.width:
    print("Breite "+args.width)

if args.height:
    print("Hoehe "+args.height)

if args.posx:
    print("Position X "+args.posx)

if args.posy:
    print("Position Y "+args.posy)

if args.time:
    print("Duration "+args.time)