bugfix

      y_next = np.zeros((0,) + (len(tasks),))

      w_next = np.zeros((0,) + (len(tasks),))

      ids_next = np.zeros((0,), dtype=object)

      for (X, y, w, ids) in self.itershards():

        loger.info("Resharding shard %d/%d" % (shard_num, n_shards))

      for shard_num, (X, y, w, ids) in enumerate(self.itershards()):

        logger.info("Resharding shard %d/%d" % (shard_num, n_shards))

        X_next = np.concatenate([X_next, X], axis=0)

        y_next = np.concatenate([y_next, y], axis=0)

        w_next = np.concatenate([w_next, w], axis=0)

      out_dir = tempfile.mkdtemp()

    tasks = self.get_task_names()

    n_shards = self.get_number_shard()

    n_shards = self.get_number_shards()

    def generator():

      for shard_num, row in self.metadata_df.iterrows():

        loger.info("Transforming shard %d/%d" % (shard_num, n_shards))

        logger.info("Transforming shard %d/%d" % (shard_num, n_shards))

        X, y, w, ids = self.get_shard(shard_num)

        newx, newy, neww = fn(X, y, w)

        yield (newx, newy, neww, ids)

    def generator():

      for ind, dataset in enumerate(datasets):

        loger.info("Merging in dataset %d/%d" % (ind, len(datasets)))

        logger.info("Merging in dataset %d/%d" % (ind, len(datasets)))

        X, y, w, ids = (dataset.X, dataset.y, dataset.w, dataset.ids)

        yield (X, y, w, ids)

    def generator():

      count, indices_count = 0, 0

      for shard_num, (X, y, w, ids) in enumerate(self.itershards()):

        loger.info("Selecting from shard %d/%d" % (shard_num, n_shards))

        logger.info("Selecting from shard %d/%d" % (shard_num, n_shards))

        shard_len = len(X)

        # Find indices which rest in this shard

        num_shard_elts = 0