import datetime
import os
import time
import subprocess
today = datetime.date.today()
weekday = datetime.date.weekday(today)
proc = None
while True:
   if weekday == 4: #friday friday!
      proc = subprocess.Popen(["C:\\Program Files\\VideoLAN\\VLC\\vlc.exe", "C:\\fredagsklipp.avi", "--fullscreen", "--loop"])
   else: # :(
      proc = subprocess.Popen(["C:\\Program Files\\VideoLAN\\VLC\\vlc.exe", "C:\\vanligtklipp.avi", "--fullscreen", "--loop"])

   time.sleep(86400) #sleep for 24 hours
   proc.terminate()