gistfile1.txt

#!/usr/bin/env python3
import sys
import subprocess

reloadtime = 30

args = dict(ac='Aachen',d='Duesseldorf',e='Essen',do='Dortmund')
key = sys.argv[1]

def geturl(city):
	return "http://www.yr.no/place/Germany/North_Rhine-Westphalia/{}/meteogram.png".format(args[city])

def gettitle(city):
	return "yrno"

file = subprocess.Popen(['feh', '--title', gettitle(key), '--reload', str(reloadtime), geturl(key)])
file.wait()