@classmethod
  def __factory_for_kind(cls, kind):
    if kind == BLOB_INFO_KIND:
      return BlobInfo
    raise ValueError(kind % 'Cannot query for kind %s')
dataset/ETHPy150Open livid/v2ex/mapreduce/lib/blobstore/blobstore.py/BlobInfo.__factory_for_kind/swapped operands of `%`