tu-berlin-notifier.py

#!/usr/bin/env python
import subprocess, time, json
import urllib2


def main():
	print "Starting notifier..."

	message = ["notify-send", "Deine Nummer Digga, geh los!"]
	while True:
		current_number = your_number()
		if current_number in (689, 690, 691):
			subprocess.call(message)
		else:
			print current_number
		time.sleep(2)
	print "Closing notifier..."

def your_number():
	api_url = 'http://pa.freitagsrunde.org/api/'
	content = urllib2.urlopen(api_url).read()
	json_content = json.loads(content)
	for item in json_content['entries']:
		if item['src'] == 23:
			numbers = item['numbers']
			for number in numbers:
				if number['src'] == "23":
					current_number = number['num']
					return current_number

	return -1

if __name__ == "__main__":
	main()