Mine

rssver = 2trackfile = "U:\\userdata\\.rssver"rssfile = "U:\\userdata\\RssFeeds.xml"oldFeeds = ['http://feeds.feedburner.com/XboxScene',            'http://feeds.feedburner.com/XbmcMediaCenter']currentFeed = 'http://feeds.feedburner.com/xbmc'def updatefeed():  try:    xml = open(rssfile, "r")  except:    return      text = xml.read()  xml.close()  for feed in oldFeeds:    text = text.replace(feed, currentFeed)    xml = open(rssfile, "w")  xml.write(text)  xml.close()    file = open(trackfile,"w")  file.write("%d" % (rssver))  file.close()try:  file = open(trackfile, "r")except:  file = Noneif file != None:  try:    version = int(file.read())    file.close()  except:    version = -1  if version != rssver:    updatefeed()else:  updatefeed()