4.2.0

Dataset Features

• Sample without replacement option when interleaving datasets by @radulescupetru in https://github.com/huggingface/datasets/pull/7786

  ds = interleave_datasets(datasets, stopping_strategy="all_exhausted_without_replacement")
  

• Parquet: add on_bad_files argument to error/warn/skip bad files by @lhoestq in https://github.com/huggingface/datasets/pull/7806

  ds = load_dataset(parquet_dataset_id, on_bad_files="warn")
  

• Add parquet scan options and docs by @lhoestq in https://github.com/huggingface/datasets/pull/7801

  • docs to select columns and filter data efficiently

  ds = load_dataset(parquet_dataset_id, columns=["col_0", "col_1"])
  ds = load_dataset(parquet_dataset_id, filters=[("col_0", "==", 0)])
  

  • new argument to control buffering and caching when streaming

  fragment_scan_options = pyarrow.dataset.ParquetFragmentScanOptions(cache_options=pyarrow.CacheOptions(prefetch_limit=1, range_size_limit=128 << 20))
  ds = load_dataset(parquet_dataset_id, streaming=True, fragment_scan_options=fragment_scan_options)
  

What's Changed

• Document HDF5 support by @klamike in https://github.com/huggingface/datasets/pull/7740
• update tips in docs by @lhoestq in https://github.com/huggingface/datasets/pull/7790
• feat: avoid some copies in torch formatter by @drbh in https://github.com/huggingface/datasets/pull/7787
• Support huggingface_hub v0.x and v1.x by @Wauplin in https://github.com/huggingface/datasets/pull/7783
• Define CI future by @lhoestq in https://github.com/huggingface/datasets/pull/7799
• More Parquet streaming docs by @lhoestq in https://github.com/huggingface/datasets/pull/7803
• Less api calls when resolving data_files by @lhoestq in https://github.com/huggingface/datasets/pull/7805
• typo by @lhoestq in https://github.com/huggingface/datasets/pull/7807

New Contributors

• @drbh made their first contribution in https://github.com/huggingface/datasets/pull/7787

Full Changelog: https://github.com/huggingface/datasets/compare/4.1.1...4.2.0