def _ExpandItemName(expand_fn, name, kind):
  (uuid, full_name) = expand_fn(name)
  if uuid is None or full_name is None:
    raise errors.OpPrereqError("%s '%s' not known" % (kind, name),
                               errors.ECODE_NOENT)
  return (uuid, full_name)
Check if bug #21 is fixed.
dataset/ETHPy150Open ganeti/ganeti/lib/cmdlib/common.py/_ExpandItemName--crossover with--dataset/ETHPy150Open yetty/django-embed-video/embed_video/tests/backends/tests_soundcloud.py/SoundCloudBackendTestCase.test_invalid_url