Dataset.lazy() ray.data.dataset.Dataset[ray.data.block.T][source]#

Enable lazy evaluation.

Datasets are lazy by default, so this is only useful for datasets created from ray.data.from_items(), which is eager.

The returned dataset is a lazy dataset, where all subsequent operations on the dataset won’t be executed until the dataset is consumed (e.g. .take(), .iter_batches(), .to_torch(), .to_tf(), etc.) or execution is manually triggered via .fully_executed().