def AuthSubTokenFromUrl(url):
  token = TokenFromUrl(url)
  if token:
    return 'AuthSub token=%s' % token
  return None
Extracts the AuthSub token from the URL. 
dataset/ETHPy150Open acil-bwh/SlicerCIP/Scripted/attic/PicasaSnap/gdata/auth.py/AuthSubTokenFromUrl