def _OpenRealBD(disk):
  real_disk = _RecursiveFindBD(disk)
  if real_disk is None:
    _Fail("Block device '%s' is not set up", disk)

  real_disk.Open()

  return real_disk
Select recommendations given predicted scores/ratings.
dataset/ETHPy150Open ganeti/ganeti/lib/backend.py/_OpenRealBD--crossover with--dataset/ETHPy150Open Mendeley/mrec/mrec/mf/recommender.py/MatrixFactorizationRecommender._get_recommendations_from_predictions