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https://api.github.com/repos/huggingface/datasets/issues/8340 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8340/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8340/comments | https://api.github.com/repos/huggingface/datasets/issues/8340/events | https://github.com/huggingface/datasets/pull/8340 | 4,908,511,747 | PR_kwDODunzps7y1YDI | 8,340 | Make Dataset generic to allow specifying column types in typehints | {
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} | Closes #7719
## What does this PR do?
Makes `Dataset` optionally generic so its column types can be specified in a
typehint, similar to how `torch.utils.data.DataLoader[T]` works today (as
requested in the issue).
Before, the only way to document a dataset's columns was a docstring comment:
```python
from datasets ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8339 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8339/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8339/comments | https://api.github.com/repos/huggingface/datasets/issues/8339/events | https://github.com/huggingface/datasets/pull/8339 | 4,905,200,782 | PR_kwDODunzps7yqz1j | 8,339 | Make the dataset fingerprint independent of Arrow chunking | {
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} | Fixes #8327.
As discussed in the issue, the OOM in `Dataset.from_pandas` comes from `generate_fingerprint`, not from the Arrow conversion. Fingerprinting hashes `dataset.__dict__`, and the underlying `pa.Table` (and the `InMemoryTable` wrapping it) pickles chunk-by-chunk, so the serialized size and the hashing cost ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8338 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8338/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8338/comments | https://api.github.com/repos/huggingface/datasets/issues/8338/events | https://github.com/huggingface/datasets/pull/8338 | 4,898,613,660 | PR_kwDODunzps7yVTjf | 8,338 | Include file size in dataset fingerprint | {
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} | ### Motivation
Currently, the dataset cache fingerprints rely entirely on the `ETag`/`etag`/`mtime` metadata fetched during `fs.info()`. If a file's byte size changes on the remote end—and the remote backend fails to reliably update the ETag—the dataset fingerprint stays improperly static. This leads to insidious bugs... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8337 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8337/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8337/comments | https://api.github.com/repos/huggingface/datasets/issues/8337/events | https://github.com/huggingface/datasets/pull/8337 | 4,894,686,483 | PR_kwDODunzps7yIgNf | 8,337 | Bump fsspec and simpler wds compr | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8337). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-07-15T17:01:52Z | 2026-07-16T13:09:43Z | null | null | MEMBER | [] | null | null | 0 | {
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} | Fixes #7413
Adds a WebDataset example to the video dataset docs showing how multiple media files of the same type per sample are mapped. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8335 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8335/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8335/comments | https://api.github.com/repos/huggingface/datasets/issues/8335/events | https://github.com/huggingface/datasets/pull/8335 | 4,892,837,423 | PR_kwDODunzps7yCdSS | 8,335 | Fix column loss in horizontal concatenation of arrow-backed IterableDatasets | {
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"Closing this — on review the fix only covers the equal-length case. The arrow (`_iter_arrow`) path also needs to pad different-length sources with nulls the way the non-arrow path does, otherwise horizontal concat of unequal-length sources raises `ArrowInvalid`. I'd rather rework it to handle that completely befor... | 2026-07-15T13:18:15Z | 2026-07-15T14:33:35Z | 2026-07-15T14:33:35Z | null | NONE | [] | null | null | 0 | {
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} | ## Bug
`concatenate_datasets([...], axis=1)` over arrow-backed `IterableDataset`s (e.g. from `.to_iterable_dataset()`) silently drops the **first** dataset's columns and duplicates the **last** dataset's column.
In `HorizontallyConcatenatedMultiSourcesExamplesIterable._iter_arrow`, the merged table is built by append... | {
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} | This PR updates the type hint for the `path_or_paths` argument in dataset loading methods (`from_parquet`, `from_csv`, `from_json`, and `from_text`) in `src/datasets/arrow_dataset.py`.
It replaces `list[PathLike]` with `Sequence[PathLike]`. Since `list` is invariant and `Sequence` is covariant, this prevents users f... | null | {
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} | ## What does this do?
`Dataset.to_dict(batch_size=..., batched=True)` silently ignores both arguments and always returns the full dict, even though its signature, docstring ("Set to `True` to return a generator that yields the dataset as batches"), and `-> Union[dict, Iterator[dict]]` return type all promise batching.... | null | {
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} | ## Problem
`IterableDataset.map(fn, batched=True)` can silently drop or misalign rows when the mapping function changes the batch's row count but does not re-emit every retained input column.
In `MappedExamplesIterable._iter`, `prepare_outputs` merges the batch with `transformed_inputs = {**inputs, **processed_inputs... | null | {
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"Hi ! Thanks for the ping, yes we are aware of the issue and actively working on it. It's taking some time though since we want to make sure it will be 100% back and for good.\n\nThis impacts both the API and the Viewer on HF which is based on it"
] | 2026-07-14T13:59:29Z | 2026-07-14T18:01:57Z | null | null | NONE | [] | null | null | null | null | ### Describe the bug
The entire datasets-server.huggingface.co backend (the dataset-viewer API) is
returning 503 Service Temporarily Unavailable on every route I've tried, not
just one endpoint. It reproduces on public datasets with no auth token, so it
doesn't appear to be account- or dataset-specific. huggingface.co... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8330 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8330/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8330/comments | https://api.github.com/repos/huggingface/datasets/issues/8330/events | https://github.com/huggingface/datasets/issues/8330 | 4,883,330,907 | I_kwDODunzps8AAAABIxG3Ww | 8,330 | Dataset Studio and Viewer down | {
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"Hi ! Thanks for the ping, yes we are aware of the issue and actively working on it. It's taking some time though since we want to make sure it will be 100% back and for good"
] | 2026-07-14T13:06:53Z | 2026-07-14T18:01:18Z | null | null | NONE | [] | null | null | null | null | ### Describe the bug
Hello!
I want to report a bug on the datasets viewer and data studio pages. I have attempted to access it on various datasets from various devices and it will not let me view the dataset this way. I have tried restarting, login in and out but to no success. I use Hugging Face as a repository th... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8329 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8329/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8329/comments | https://api.github.com/repos/huggingface/datasets/issues/8329/events | https://github.com/huggingface/datasets/pull/8329 | 4,882,090,554 | PR_kwDODunzps7xfhUD | 8,329 | fix: replace list/List with Sequence in function parameter annotations | {
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} | Fixes #5354
Replaces `list[T]` with `Sequence[T]` in function parameter type annotations across `arrow_dataset.py`, `dataset_dict.py`, and `iterable_dataset.py`.
The built-in `list` is invariant in its type parameter, so passing a `List[str]` where `list[PathLike]` is expected causes a mypy error. `Sequence` is cova... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8328 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8328/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8328/comments | https://api.github.com/repos/huggingface/datasets/issues/8328/events | https://github.com/huggingface/datasets/issues/8328 | 4,881,665,580 | I_kwDODunzps8AAAABIvhOLA | 8,328 | Streaming datasets fail with 403 SignatureError: invalid key pair id from xet-bridge-us (Colab, latest libraries) | {
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"Hi ! I couldn't reproduce the issue on my side. I can see two options, let me know if any helps you:\n\n1) this was a transient issue (we restarted some machines recently but this shouldn't have impacted you tbh), can you try again just in case ?\n2) something is wrong with your token smh, can you logout and login... | 2026-07-14T09:21:43Z | 2026-07-15T00:58:06Z | null | null | NONE | [] | null | null | null | null | ### Describe the bug
I'm unable to stream datasets from the Hugging Face Hub. The issue affects both public datasets (e.g. beans) and gated datasets (ILSVRC/imagenet-1k).
The failure occurs before any examples are yielded. The request is redirected to the Xet CDN (xet-bridge-us) and fails with:
```
403 Forbidden
Au... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8327 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8327/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8327/comments | https://api.github.com/repos/huggingface/datasets/issues/8327/events | https://github.com/huggingface/datasets/issues/8327 | 4,874,477,254 | I_kwDODunzps8AAAABIoqexg | 8,327 | `Dataset.from_pandas` allocates ~1 MB per Arrow chunk, Out of Memory errors | {
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"The measurements in the issue point at `from_pandas`, but I think the allocation is actually in fingerprinting, and not in the Arrow conversion at all.\n\nOn datasets 5.0.0 I get:\n\n| step | peak |\n|---|---|\n| `pa.Table.from_pandas(df)` | ~0 MB |\n| `Dataset.from_pandas(df)` | 1499 MB |\n| `generate_fingerprint... | 2026-07-13T14:13:38Z | 2026-07-16T13:43:01Z | null | null | NONE | [] | null | null | null | null | ### Describe the bug
`Dataset.from_pandas` memory usage scales with the chunk count of the backing Arrow array (around 1 MB per chunk).
`Dataset.shuffle()` followed by `to_pandas()` produces string columns with one chunk per row, so a 25k-row DataFrame holding ~32 MB of text allocates ~30 GB on the way back through ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8326 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8326/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8326/comments | https://api.github.com/repos/huggingface/datasets/issues/8326/events | https://github.com/huggingface/datasets/pull/8326 | 4,871,148,453 | PR_kwDODunzps7w78O8 | 8,326 | docs: replace AutoFeatureExtractor with AutoImageProcessor in image preprocessing docs | {
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} | Fixes #8199
Replaces deprecated with the modern in the image preprocessing example in . | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8325 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8325/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8325/comments | https://api.github.com/repos/huggingface/datasets/issues/8325/events | https://github.com/huggingface/datasets/pull/8325 | 4,869,263,834 | PR_kwDODunzps7w2Bma | 8,325 | Fix path traversal via metadata file_name in folder-based builders | {
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"Thanks, both addressed.\n\n**1. `dummy/../../../`:** this is actually already caught — `file_name` is run through `os.path.normpath` before the check, so `dummy/../../../etc/passwd` normalizes to `../../etc/passwd` and is rejected by the existing `..` guard. I added explicit regression tests (`dummy/../../../etc/p... | 2026-07-12T23:48:39Z | 2026-07-16T08:28:46Z | null | null | NONE | [] | null | null | 0 | {
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} | Fix #8324
### Vulnerability
The folder-based builders (`imagefolder`, `audiofolder`, `videofolder`, `pdffolder`) resolve each metadata row's `file_name` by joining it to the metadata file's directory with no containment check. A malicious dataset can set `file_name` to a `../`-traversal path or an absolute path, caus... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8324 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8324/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8324/comments | https://api.github.com/repos/huggingface/datasets/issues/8324/events | https://github.com/huggingface/datasets/issues/8324 | 4,867,649,641 | I_kwDODunzps8AAAABIiJwaQ | 8,324 | Path traversal / arbitrary file read via the `file_name` metadata field in `*folder` dataset builders (no `trust_remote_code`) | {
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"#self-assign"
] | 2026-07-12T15:38:21Z | 2026-07-12T23:34:48Z | null | null | NONE | [] | null | null | null | null | ### Describe the bug
reported via email on 9 June 2026 - no acknowledgement or response:
Package: datasets (PyPI). Affected file: src/datasets/packaged_modules/folder_based_builder/folder_based_builder.py
Affected Versions: confirmed on 5.0.0 (PyPI) and HEAD 63e103e.
CVSS: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8323 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8323/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8323/comments | https://api.github.com/repos/huggingface/datasets/issues/8323/events | https://github.com/huggingface/datasets/pull/8323 | 4,863,233,039 | PR_kwDODunzps7wku51 | 8,323 | Raise on Dataset.rename_columns name collision with an existing column | {
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} | ### What
`Dataset.rename_column` (singular) already rejects a new column name that collides with an
existing column:
```python
>>> ds.rename_column("foo", "bar") # "bar" already exists
ValueError: New column name bar already in the dataset. ...
```
`Dataset.rename_columns` (plural, dict-based) has no equivalent che... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8322 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8322/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8322/comments | https://api.github.com/repos/huggingface/datasets/issues/8322/events | https://github.com/huggingface/datasets/pull/8322 | 4,862,220,787 | PR_kwDODunzps7whovv | 8,322 | feat: use `ListLike` instead of `list` in path type hints | {
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} | ---
## Description
Changed type annotations from `list[PathLike]` to `ListLike[PathLike]` in
`from_csv`, `from_json`, `from_parquet`, and `from_text`.
`list` type hints are invariant — passing a `tuple` of paths fails mypy even
though it works fine at runtime. `ListLike` (defined in
`src/datasets/utils/typing.py`) ac... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8321 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8321/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8321/comments | https://api.github.com/repos/huggingface/datasets/issues/8321/events | https://github.com/huggingface/datasets/pull/8321 | 4,861,816,606 | PR_kwDODunzps7wgZfn | 8,321 | Fix: Resolve Sequence type hints and add from_jsonl alias (#5354) | {
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} | Fixes #5354
## Proposed Changes
- Updates features typing to use Sequence instead of List/Tuple in from_json and from_parquet parsing functions.
- Adds from_jsonl as an explicit wrapper to from_json for dataset creation, providing API symmetry with to_jsonl.
- Includes dedicated tests for the new from_jsonl alias in a... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8320 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8320/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8320/comments | https://api.github.com/repos/huggingface/datasets/issues/8320/events | https://github.com/huggingface/datasets/pull/8320 | 4,860,517,539 | PR_kwDODunzps7wcTTb | 8,320 | docs: add community health files (CHANGELOG.md) | {
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} | ## Summary
Adds missing open-source community health files:
- **CHANGELOG.md** — Keep a Changelog format, Semantic Versioning
- **README.md** — contributor profile link
### Why
These files help contributors understand how to participate and set community expectations.
---
*[Mukller](https://github.com/Mu... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8319 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8319/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8319/comments | https://api.github.com/repos/huggingface/datasets/issues/8319/events | https://github.com/huggingface/datasets/pull/8319 | 4,859,119,134 | PR_kwDODunzps7wX361 | 8,319 | Cast multi-dimensional numpy arrays when inferring IterableDataset features | {
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} | ## Summary
`IterableDataset._resolve_features()` crashes when a `map` function yields multi-dimensional numpy arrays:
```python
from datasets import Dataset
import numpy as np
ds = Dataset.from_dict({"a": [[[1, 2, 3], [1, 2, 3]]]}).to_iterable_dataset().map(lambda x: {"a": [np.array(x["a"])]})
ds._resolve_features()
... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8318 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8318/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8318/comments | https://api.github.com/repos/huggingface/datasets/issues/8318/events | https://github.com/huggingface/datasets/pull/8318 | 4,852,071,515 | PR_kwDODunzps7wBLK6 | 8,318 | Vectorize interleave_datasets index generation (probabilities + first/all_exhausted) | {
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"Hi @lhoestq — gentle ping on this one when you have a moment.\n\nIt vectorizes the `probabilities`-given index generation in `_interleave_map_style_datasets` (the `first_exhausted` / `all_exhausted` branches), which currently builds the index list in a pure-Python per-row loop. This brings it to parity with the al... | 2026-07-10T04:43:02Z | 2026-07-12T14:08:11Z | null | null | NONE | [] | null | null | 0 | {
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} | ## What
`_interleave_map_style_datasets` (used by `interleave_datasets` for map-style `Dataset`s) builds the output index list in a **pure-Python `for`-loop, one iteration per output row**, when `probabilities` is given:
```python
for source_idx in iter_random_indices():
if bool_strategy_func(is_exhausted):
... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8317 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8317/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8317/comments | https://api.github.com/repos/huggingface/datasets/issues/8317/events | https://github.com/huggingface/datasets/pull/8317 | 4,851,996,655 | PR_kwDODunzps7wA7r8 | 8,317 | fix(json): produce valid JSON when lines=False spans multiple batches (#7037) | {
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} | ## Summary
Fixes #7037.
`Dataset.to_json(lines=False)` raised `NotImplementedError` (and before the guard was added, silently produced _invalid_ JSON) whenever `batch_size < num_rows` — i.e., the default case for any dataset larger than `DEFAULT_MAX_BATCH_SIZE` (1000 rows).
**Root cause:** Each batch was serialised ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8316 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8316/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8316/comments | https://api.github.com/repos/huggingface/datasets/issues/8316/events | https://github.com/huggingface/datasets/pull/8316 | 4,851,944,983 | PR_kwDODunzps7wAxOj | 8,316 | Preserve features after IterableDataset.add_column | {
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} | ## What
`IterableDataset.add_column` delegates to `map` but never propagates the schema. After the call, `dataset.features` is `None` even when the original dataset had a typed schema, silently breaking all downstream code that inspects features.
## Root cause
The implementation is a one-liner:
```python
return self... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8315 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8315/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8315/comments | https://api.github.com/repos/huggingface/datasets/issues/8315/events | https://github.com/huggingface/datasets/pull/8315 | 4,849,890,950 | PR_kwDODunzps7v6TJQ | 8,315 | Fix size_str(0) returning "Unknown size" instead of "0 bytes" | {
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} | `size_str` uses `if not size_in_bytes:` to return `"Unknown size"`, which also catches `0`. But `0` is a valid size (0 bytes), and the docstring states that only `None` means "Unknown size". So a 0-byte size (e.g. an empty split) currently renders as "Unknown size":
```python
>>> from datasets.utils.py_utils import... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8314 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8314/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8314/comments | https://api.github.com/repos/huggingface/datasets/issues/8314/events | https://github.com/huggingface/datasets/pull/8314 | 4,849,455,669 | PR_kwDODunzps7v46i1 | 8,314 | Fix to_json(lines=False) producing invalid JSON for multi-batch datasets | {
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} | Fixes #7037.
to_json(lines=False) concatenated batch JSON arrays directly (like [...][...][...]), which is invalid JSON. Fixed by stripping outer brackets from each batch with orient=records and wrapping in a single array. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8313 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8313/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8313/comments | https://api.github.com/repos/huggingface/datasets/issues/8313/events | https://github.com/huggingface/datasets/pull/8313 | 4,843,463,896 | PR_kwDODunzps7vlZFI | 8,313 | Fix crash on millisecond-scale started_at in hermes agent traces | {
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} | ## Summary
Parsing a hermes-format agent trace whose `started_at` is expressed in milliseconds crashes with `OSError: [Errno 22] Invalid argument`.
## The bug
`src/datasets/packaged_modules/json/json.py` normalizes `started_at` before feeding it to `datetime.fromtimestamp` (which expects **seconds**), using a magnit... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8312 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8312/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8312/comments | https://api.github.com/repos/huggingface/datasets/issues/8312/events | https://github.com/huggingface/datasets/pull/8312 | 4,835,483,160 | PR_kwDODunzps7vLR6W | 8,312 | Fix Dataset.take raising IndexError when taking more elements than available | {
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} | ### Description
`Dataset.take(n)` is implemented as `self.select(range(n))`, so when `n` is larger than the dataset length it raises `IndexError: Index N out of range for dataset of size M` instead of returning the whole dataset. This is inconsistent with `IterableDataset.take`, which clamps and returns all available e... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8311 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8311/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8311/comments | https://api.github.com/repos/huggingface/datasets/issues/8311/events | https://github.com/huggingface/datasets/pull/8311 | 4,832,988,791 | PR_kwDODunzps7vDKY3 | 8,311 | Fix silent dataset truncation in batched map with mismatched empty column (#6879) | {
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} | ## What does this PR do?
Fixes #6879.
`Dataset.map(fn, batched=True)` silently truncates the dataset to **0 rows** (instead of raising) when the mapping function empties an *existing* column while another column stays non-empty.
### Reproducer (from the issue)
```python
import datasets
data = datasets.Dataset.from_... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8310 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8310/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8310/comments | https://api.github.com/repos/huggingface/datasets/issues/8310/events | https://github.com/huggingface/datasets/pull/8310 | 4,821,704,510 | PR_kwDODunzps7ueW6y | 8,310 | Make patch_submodule robust to __builtins__ being a module (PyPy / __main__) | {
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} | Closes #7636.
### Problem
`patch_submodule` reads the builtins through `globals()["__builtins__"]`:
```python
elif target_attr in globals()["__builtins__"]: # if it's a builtin like "open"
self.original[target_attr] = globals()["__builtins__"][target_attr]
```
The value of a module's `__builtins__` global is a... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8309 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8309/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8309/comments | https://api.github.com/repos/huggingface/datasets/issues/8309/events | https://github.com/huggingface/datasets/pull/8309 | 4,818,217,806 | PR_kwDODunzps7uS_TH | 8,309 | Make doc builds faster | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8309). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-07-06T10:28:24Z | 2026-07-06T13:21:54Z | null | null | NONE | [] | null | null | 0 | {
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} | Companion to the doc-builder tracker: huggingface/doc-builder#802
🤖 Generated with [Claude Code](https://claude.com/claude-code) | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8308 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8308/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8308/comments | https://api.github.com/repos/huggingface/datasets/issues/8308/events | https://github.com/huggingface/datasets/issues/8308 | 4,818,109,751 | I_kwDODunzps8AAAABHy6FNw | 8,308 | Streaming IterableDataset state stops advancing after first resume — second resume restarts from the beginning | {
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## Description
For a streaming `IterableDataset`, calling `load_state_dict()` and then continuing to iterate leaves `state_dict()` frozen at the initial position (`shard_idx=0`, `shard_example_idx=0`). Reading resumes correctly the first time, but the tracked state never advances again.
This causes a second consecut... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8307 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8307/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8307/comments | https://api.github.com/repos/huggingface/datasets/issues/8307/events | https://github.com/huggingface/datasets/pull/8307 | 4,814,981,536 | PR_kwDODunzps7uIqj_ | 8,307 | Improve missing tsfile dependency error | {
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} | Related to #8256
This PR improves the error message when the optional `tsfile` dependency is unavailable.
Currently, loading a TSFile dataset without `tsfile` installed raises a raw:
ModuleNotFoundError: No module named 'tsfile'
This change raises a clearer ImportError instead:
ImportError: To support lo... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8306 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8306/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8306/comments | https://api.github.com/repos/huggingface/datasets/issues/8306/events | https://github.com/huggingface/datasets/pull/8306 | 4,814,736,642 | PR_kwDODunzps7uH7t7 | 8,306 | Fix `add_column` parameter order so `feature` precedes `new_fingerprint` | {
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} | ### What
`Dataset.add_column`'s signature is `(name, column, new_fingerprint=None, feature=None)`, but:
- its own docstring documents the third argument as `feature` (not `new_fingerprint`), and
- every sibling `@fingerprint_transform` method keeps `new_fingerprint` as the **last** parameter (e.g. `cast_column(column... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8303 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8303/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8303/comments | https://api.github.com/repos/huggingface/datasets/issues/8303/events | https://github.com/huggingface/datasets/pull/8303 | 4,805,200,544 | PR_kwDODunzps7trDJb | 8,303 | Fix symlink-following arbitrary file write in archive extraction | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8303). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-07-03T17:10:38Z | 2026-07-06T10:04:30Z | 2026-07-06T10:04:29Z | null | CONTRIBUTOR | [] | null | null | 0 | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | Extractor.extract() called shutil.rmtree(output_path, ignore_errors=True) before extracting. Since Python 3.8, shutil.rmtree() raises OSError on a symlink pointing to a directory, which ignore_errors=True silently swallows. An attacker with write access to a shared cache directory could pre-plant a symlink at the predi... | {
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https://api.github.com/repos/huggingface/datasets/issues/8302 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8302/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8302/comments | https://api.github.com/repos/huggingface/datasets/issues/8302/events | https://github.com/huggingface/datasets/issues/8302 | 4,804,667,688 | I_kwDODunzps8AAAABHmFpKA | 8,302 | Turkish DIK-style Syntactic Structure Benchmark Dataset | {
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] | open | false | [] | null | [] | 2026-07-03T15:33:39Z | 2026-07-03T15:33:39Z | null | null | NONE | [] | null | null | null | null | ### Feature request
A structured dataset proposal introducing a Turkish syntactic structure benchmark designed for evaluating LLMs on fine-grained grammatical reasoning in a morphologically rich language.
Current NLP datasets in Hugging Face focus heavily on surface-level semantic tasks or English-centric benchmarks.... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8301 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8301/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8301/comments | https://api.github.com/repos/huggingface/datasets/issues/8301/events | https://github.com/huggingface/datasets/pull/8301 | 4,803,858,831 | PR_kwDODunzps7tmuV3 | 8,301 | Fix lance auth | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8301). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-07-03T13:30:28Z | 2026-07-03T14:17:40Z | 2026-07-03T14:17:38Z | null | MEMBER | [] | null | null | 0 | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | fix two bugs
- `TypeError: argument 'storage_options': 'None' is not an instance of 'str'` because "token": None is not supported in storage_options
- download_config.storage_options was empty and therefore the token for private datasets was not passed to lance | {
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https://api.github.com/repos/huggingface/datasets/issues/8300 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8300/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8300/comments | https://api.github.com/repos/huggingface/datasets/issues/8300/events | https://github.com/huggingface/datasets/issues/8300 | 4,798,952,848 | I_kwDODunzps8AAAABHgo1kA | 8,300 | Dataset spotlight: Helium benchmarks | {
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"Closing — wrong venue (Library repo; use HF dataset page.). We're focusing on eval awesome-list PRs and lm-eval/promptfoo integrations. — Helium Trades"
] | 2026-07-02T23:50:52Z | 2026-07-03T04:08:04Z | 2026-07-03T04:08:04Z | null | NONE | [] | null | null | null | null | Helium Model Worldview: 304 cue-swap prompts. https://huggingface.co/datasets/HeliumTrades/helium-model-worldview-benchmark | https://heliumtrades.com/benchmarks/ | {
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https://api.github.com/repos/huggingface/datasets/issues/8299 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8299/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8299/comments | https://api.github.com/repos/huggingface/datasets/issues/8299/events | https://github.com/huggingface/datasets/pull/8299 | 4,796,399,878 | PR_kwDODunzps7tOQW5 | 8,299 | Fix MetadataConfigs dropping parquet shards for non-consecutive configs | {
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} | Fixes #8269
## Problem
`MetadataConfigs._from_exported_parquet_files_and_dataset_infos()` groups the exported parquet files with `itertools.groupby(exported_parquet_files, itemgetter("config"))`. `groupby` only groups **consecutive** equal keys, but the result is built as a dict keyed by config name:
```python
metad... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8298 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8298/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8298/comments | https://api.github.com/repos/huggingface/datasets/issues/8298/events | https://github.com/huggingface/datasets/pull/8298 | 4,790,672,091 | PR_kwDODunzps7s7tdy | 8,298 | Replace distutils.util.strtobool in tests with a local helper | {
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} | ## What this fixes
`tests/utils.py` imports `strtobool` from `distutils.util`:
```python
from distutils.util import strtobool
```
`distutils` was removed from the standard library in **Python 3.12** ([PEP 632](https://peps.python.org/pep-0632/)). `tests/utils.py` is imported (via `from .utils import ...`) by **20 te... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8297 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8297/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8297/comments | https://api.github.com/repos/huggingface/datasets/issues/8297/events | https://github.com/huggingface/datasets/pull/8297 | 4,782,770,650 | PR_kwDODunzps7sh2Y4 | 8,297 | Fix: preserve features after IterableDataset.add_column (GH#5752) | {
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} | ## Problem
After calling `.add_column()` on a streaming `IterableDataset`, accessing `.features` returns `None`:
```python
from datasets import load_dataset
ds = load_dataset("...", streaming=True)
print(ds.features) # {'text': Value('string'), ...}
ds2 = ds.add_column("new_column", ["val"] * len(ds))
print(ds2.fe... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8296 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8296/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8296/comments | https://api.github.com/repos/huggingface/datasets/issues/8296/events | https://github.com/huggingface/datasets/issues/8296 | 4,779,554,534 | I_kwDODunzps8AAAABHOI25g | 8,296 | [security] Symlink-Following Arbitrary File Write via Archive Extraction in huggingface/datasets | {
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"thanks for reporting, I'm not entirely sure how someone could exploit this but a fix would be welcome for sure ! Option A looks good to me",
"@lhoestq Thanks for the quick response! I opened a PR #8303 implementing Option A. The threat model is a shared cache. Any user who can write into downloads/extracted/ — b... | 2026-06-30T18:46:34Z | 2026-07-04T19:06:53Z | null | null | CONTRIBUTOR | [] | null | null | null | null | ### Describe the bug
## Summary
A symlink-following vulnerability exists in the archive extraction subsystem of `huggingface/datasets` that allows a local attacker with write access to a shared HuggingFace cache directory to write arbitrary files with the victim's privileges, by pre-planting a symlink at a predictabl... | null | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8295). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-06-30T15:28:14Z | 2026-07-06T15:19:54Z | 2026-07-06T15:19:54Z | null | CONTRIBUTOR | [] | null | null | 0 | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | ## Summary
For a streaming `IterableDataset`, calling `load_state_dict()` and then continuing to iterate leaves `state_dict()` at the initial position (`shard_idx=0`, `shard_example_idx=0`). Reading resumes from the correct place, but the the state never advances again.
The practical consequence shows up on the ... | {
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} | ## What does this PR do?
Adds missing docstrings to five public utility functions in `src/datasets/utils/py_utils.py`. Each docstring follows the HuggingFace documentation style with `Args`, `Returns`, `Raises`, and `Example` sections.
**Functions documented:**
| Function | What it does |
|---|---|
| `glob_pattern_t... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8293 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8293/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8293/comments | https://api.github.com/repos/huggingface/datasets/issues/8293/events | https://github.com/huggingface/datasets/issues/8293 | 4,774,067,106 | I_kwDODunzps8AAAABHI57og | 8,293 | Support concatenating multiple streaming datasets while preserving the sum of shards | {
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"it's already the case afaik:\n\n```python\nIn [1]: from datasets import IterableDataset, concatenate_datasets\n\nIn [2]: ds1 = IterableDataset.from_dict({\"i\": [0, 1]})\n\nIn [3]: ds2 = IterableDataset.from_dict({\"i\": [2, 3]})\n\nIn [4]: ds = concatenate_datasets([ds1, ds2])\n\nIn [5]: list(ds)\nOut[5]: [{'i': ... | 2026-06-30T05:44:23Z | 2026-07-03T13:40:43Z | null | null | NONE | [] | null | null | null | null | ### Feature request
It would be useful if concatenating multiple `IterableDataset`s could preserve the shard information from each input dataset, so that:
- the total number of shards equals the sum of the input shards;
- `split_dataset_by_node()` and worker sharding continue to work efficiently;
- downstream distrib... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8291 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8291/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8291/comments | https://api.github.com/repos/huggingface/datasets/issues/8291/events | https://github.com/huggingface/datasets/pull/8291 | 4,773,012,250 | PR_kwDODunzps7sB4nP | 8,291 | Add `skip_origin_metadata` flag to optimize streaming startup time | {
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"Hi @lhoestq, could you take a look at this PR? Thanks."
] | 2026-06-30T02:00:17Z | 2026-07-16T07:11:35Z | null | null | NONE | [] | null | null | 0 | {
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} | Fix #8197
This PR introduces the `skip_origin_metadata` kwarg to skip costly origin metadata fetching (ETags/mtime) when it's not needed, improving streaming initialization latency. This saves number of files `fs.info` calls per `load_dataset` call.
### Changes
- **Kwarg Plumbing**: Routes the `skip_origin_metadat... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8290 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8290/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8290/comments | https://api.github.com/repos/huggingface/datasets/issues/8290/events | https://github.com/huggingface/datasets/pull/8290 | 4,765,649,212 | PR_kwDODunzps7rpmpe | 8,290 | Fix docstring example for select_columns in IterableDatasetDict | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8290). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-06-29T06:34:26Z | 2026-06-29T06:37:17Z | null | null | MEMBER | [] | null | null | 0 | {
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} | Fix docstring example for select_columns in IterableDatasetDict.
This PR updates the usage example for selecting columns in a streaming dataset. The example now correctly uses the `select_columns` method instead of the outdated `select` method.
### Changes
- **Documentation update:**
* Updated the example i... | null | {
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} | ## What does this PR do?
Adds a data-driven manual/semi-automated **regression test suite** for `datasets` at `tests/regression/regression_suite.md` (128 test cases).
The suite was built by mining 984 historical issues (2020-04 → 2021-09) to find the bug categories that keep repeating, cross-checking the currently-op... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8288 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8288/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8288/comments | https://api.github.com/repos/huggingface/datasets/issues/8288/events | https://github.com/huggingface/datasets/pull/8288 | 4,764,844,456 | PR_kwDODunzps7rm9RQ | 8,288 | Fix duplicate word in HubBucketDatasetModuleFactory docstring | {
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} | Removes a duplicated "a" in the `HubBucketDatasetModuleFactory` docstring in `src/datasets/load.py`:
"...data files of a a Storage Bucket." → "...data files of a Storage Bucket."
Documentation-only change; no code behavior affected. | null | {
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} | Fixes two typos in `docs/source/video_load.mdx`:
- "effiently" -> "efficiently" in the description of `get_frames_in_range`
- "whithin" -> "within" in the description of `get_frames_played_in_range`
Both flagged by `typos` (typos-cli 1.47.2) and verified by reading the surrounding context.
## AI assistance
This patc... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8286 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8286/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8286/comments | https://api.github.com/repos/huggingface/datasets/issues/8286/events | https://github.com/huggingface/datasets/pull/8286 | 4,754,239,506 | PR_kwDODunzps7rFykk | 8,286 | Share fsspec filesystem across threads when resolving data files | {
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} | ## What does this PR do?
Fixes #8149.
`_get_origin_metadata` resolves each data file in a `ThreadPoolExecutor` and every worker builds its own filesystem via `url_to_fs` since fsspec caches filesystem instances per thread. For cloud backends like `s3://` or `gcs://` this re-resolves credentials and opens a new co... | {
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} | ## Summary
- Fixes gated-repo failures when `Dataset.push_to_hub(..., embed_external_files=True)` embeds `hf://` image/audio paths into Parquet shards.
- `_push_parquet_shards_to_hub_single` now builds a `token_per_repo_id` map from shard paths (and destination repo metadata) and passes it to `embed_table_storage`, mat... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8284 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8284/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8284/comments | https://api.github.com/repos/huggingface/datasets/issues/8284/events | https://github.com/huggingface/datasets/pull/8284 | 4,750,361,058 | PR_kwDODunzps7q5CZm | 8,284 | Hash frozensets deterministically | {
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} | While looking at how transforms get fingerprinted I noticed `frozenset` isn't hashed deterministically, unlike `set`.
`set` has a custom reducer (`_save_set`) that pickles its elements sorted, so the fingerprint is stable across runs. `frozenset` has no such reducer and falls back to the default one, which keeps the i... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8283 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8283/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8283/comments | https://api.github.com/repos/huggingface/datasets/issues/8283/events | https://github.com/huggingface/datasets/pull/8283 | 4,744,123,924 | PR_kwDODunzps7qklZL | 8,283 | Fix CI: commit operation equality (hfh 1.20.0) and pytest parametrize collection error | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8283). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-06-25T13:14:36Z | 2026-06-25T14:57:11Z | 2026-06-25T14:57:08Z | null | CONTRIBUTOR | [] | null | null | 0 | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | Fixes two unrelated CI failures (seen e.g. in the `huggingface_hub` 1.21.0.rc0 test run, but **the first one already affects `main` with the latest stable `huggingface_hub`**).
## 1. `tests/test_hub.py::test_delete_from_hub`
Since `huggingface_hub` 1.20.0 (introduced in https://github.com/huggingface/huggingface_... | {
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https://api.github.com/repos/huggingface/datasets/issues/8282 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8282/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8282/comments | https://api.github.com/repos/huggingface/datasets/issues/8282/events | https://github.com/huggingface/datasets/pull/8282 | 4,726,350,211 | PR_kwDODunzps7pq4O0 | 8,282 | Fix Mypy typing invariance by updating List to Sequence in dataset loading functions (#5354) | {
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} | ## Description
This PR addresses issue #5354. The standard `typing.List` (or built-in `list`) is invariant in Python, meaning static analyzers like Mypy will complain if a user tries to pass a tuple or another valid sequence into the dataset loading parameters (e.g. `data_files`). By refactoring these type hints from ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8281 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8281/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8281/comments | https://api.github.com/repos/huggingface/datasets/issues/8281/events | https://github.com/huggingface/datasets/pull/8281 | 4,725,962,136 | PR_kwDODunzps7pplkb | 8,281 | Fix fixed size binary | {
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"Subset of #8258 \r\nPing @lhoestq "
] | 2026-06-23T12:45:34Z | 2026-06-23T12:46:41Z | null | null | NONE | [] | null | null | 0 | {
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} | The original issue is a crash in _arrow_to_datasets_dtype because the miss of support of fixed_size_binary:
```
Exception: SplitsNotFoundError
Message: The split names could not be parsed from the dataset config.
Traceback: Traceback (most recent call last):
File "/usr/local/lib/python... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8280 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8280/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8280/comments | https://api.github.com/repos/huggingface/datasets/issues/8280/events | https://github.com/huggingface/datasets/pull/8280 | 4,697,663,192 | PR_kwDODunzps7oNulR | 8,280 | Support Cursor agent traces | {
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"Here's an svg that should look good for the icon:\r\n\r\n<img width=\"167\" height=\"190\" alt=\"cursor\" src=\"https://github.com/user-attachments/assets/669c71b8-1025-4c99-a540-04f5ada1eead\" />\r\n\r\n```\r\n<svg xmlns=\"http://www.w3.org/2000/svg\" viewBox=\"0 0 166.79 190\" width=\"166.79\" height=\"190\" fil... | 2026-06-19T03:19:30Z | 2026-06-20T01:42:59Z | null | null | NONE | [] | null | null | 0 | {
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} | ## Summary
- detect Teich Cursor trace rows using Cursor-specific metadata and preserved `raw_cursor` data
- normalize Cursor sessions into the shared agent traces schema with session id, timestamp, prompt, user count, tool-call count, and per-row raw trace preservation
- update the Teich test dependency to `0.2.8... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8279 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8279/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8279/comments | https://api.github.com/repos/huggingface/datasets/issues/8279/events | https://github.com/huggingface/datasets/pull/8279 | 4,691,369,984 | PR_kwDODunzps7n43Ko | 8,279 | fix: ensure to_json(lines=False) produces valid JSON | {
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invalid concatenated JSON arrays. Now forces a single batch. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8277 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8277/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8277/comments | https://api.github.com/repos/huggingface/datasets/issues/8277/events | https://github.com/huggingface/datasets/pull/8277 | 4,683,481,450 | PR_kwDODunzps7ne9o_ | 8,277 | fix traces streaming | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8277). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"Thanks for the PR. Implemented them in the latest version: 0.2.5"
] | 2026-06-17T13:01:36Z | 2026-06-18T02:26:01Z | 2026-06-17T13:02:42Z | null | MEMBER | [] | null | null | 0 | {
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https://api.github.com/repos/huggingface/datasets/issues/8276 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8276/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8276/comments | https://api.github.com/repos/huggingface/datasets/issues/8276/events | https://github.com/huggingface/datasets/pull/8276 | 4,677,108,314 | PR_kwDODunzps7nJ8AR | 8,276 | Fix typos in docstrings and comments | {
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} | ## What does this PR do?
Fixes ~20 typos in docstrings, comments, and messages (no functional changes). Examples: `informations`→`information`, `simulatenous`→`simultaneous`, `acculumation`→`accumulation`, `ambigious`→`ambiguous`, `conveniant`→`convenient`, `unstructred`→`unstructured`, `lenth`→`length`, `compresssed`... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8275 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8275/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8275/comments | https://api.github.com/repos/huggingface/datasets/issues/8275/events | https://github.com/huggingface/datasets/pull/8275 | 4,665,007,240 | PR_kwDODunzps7miALR | 8,275 | fix(json): write valid JSON array when lines=False with batching | {
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} | ## Summary
- Fix `Dataset.to_json(lines=False, orient="records")` when the dataset is larger than `batch_size`
- Previously each batch wrote a separate top-level JSON array (`[...][...]`), producing invalid JSON (`JSONDecodeError: Extra data`)
- Merge batched pandas outputs into one array by stripping per-batch bracket... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8274 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8274/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8274/comments | https://api.github.com/repos/huggingface/datasets/issues/8274/events | https://github.com/huggingface/datasets/pull/8274 | 4,664,371,357 | PR_kwDODunzps7mf4Kr | 8,274 | Fix typos in documentation, comments, and a docstring | {
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} | aFixes a handful of spelling typos across the docs and source comments/docstrings. This is a documentation/comment-only change; no functional code is affected.
Changes:
docs/source/process.mdx: colums -> columns
docs/source/video_load.mdx: effiently -> efficiently; whithin -> within
src/datasets/arrow_reade... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8273 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8273/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8273/comments | https://api.github.com/repos/huggingface/datasets/issues/8273/events | https://github.com/huggingface/datasets/pull/8273 | 4,659,900,183 | PR_kwDODunzps7mRmp3 | 8,273 | Docs: Fix dataset link in access tutorial | {
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} | Actual link returns 404. Updated the URL to the new dataset location | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8272 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8272/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8272/comments | https://api.github.com/repos/huggingface/datasets/issues/8272/events | https://github.com/huggingface/datasets/pull/8272 | 4,658,001,717 | PR_kwDODunzps7mL2Kj | 8,272 | fix: report the correct variable type in fingerprint_transform ignore_kwargs validation error | {
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} | The `ignore_kwargs` validation branch in `fingerprint_transform` builds its error from `type(use_kwargs)` instead of `type(ignore_kwargs)`, so an invalid `ignore_kwargs` is reported with the wrong type while `use_kwargs` is at its default. The preceding `use_kwargs` branch already uses `type(use_kwargs)` correctly; thi... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8271 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8271/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8271/comments | https://api.github.com/repos/huggingface/datasets/issues/8271/events | https://github.com/huggingface/datasets/pull/8271 | 4,657,968,767 | PR_kwDODunzps7mLwJS | 8,271 | fix(dataset): accept pathlib.Path in save_to_disk and load_from_disk | {
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https://api.github.com/repos/huggingface/datasets/issues/8270 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8270/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8270/comments | https://api.github.com/repos/huggingface/datasets/issues/8270/events | https://github.com/huggingface/datasets/pull/8270 | 4,657,872,687 | PR_kwDODunzps7mLd9o | 8,270 | Fix metadata export when config rows are non-consecutive | {
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} | Fixes #8269
`groupby()` on unsorted exported parquet rows dropped earlier shards when the same config reappeared later in the list. Sort by `(config, split)` first.
Regression test: `test_non_consecutive_config_rows_are_merged_in_metadata_configs_from_exported_parquet_files`
```
rootdir: /tmp/datasets
configfile: py... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8269 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8269/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8269/comments | https://api.github.com/repos/huggingface/datasets/issues/8269/events | https://github.com/huggingface/datasets/issues/8269 | 4,657,872,220 | I_kwDODunzps8AAAABFaF9XA | 8,269 | MetadataConfigs drops parquet shards when exported config rows are non-consecutive | {
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`_from_exported_parquet_files_and_dataset_infos()` uses `itertools.groupby()` on unsorted `exported_parquet_files`.
If the same `config` appears again after another config, the earlier shard URLs are lost.
## Repro
```python
from itertools import groupby
from operator import itemgetter
exported = [
{"co... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8268 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8268/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8268/comments | https://api.github.com/repos/huggingface/datasets/issues/8268/events | https://github.com/huggingface/datasets/pull/8268 | 4,655,884,563 | PR_kwDODunzps7mFhu6 | 8,268 | Add force_sample_level to split_dataset_by_node | {
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"@lhoestq , hi, could you please help review this PR? Thanks!"
] | 2026-06-13T14:52:49Z | 2026-06-13T14:55:21Z | null | null | NONE | [] | null | null | 0 | {
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} | Allow users to explicitly request sample-level sharding for streaming `IterableDataset` even when `num_shards % world_size == 0`. Default behavior is unchanged.
When `num_physical_files < world_size`, or when shards divide evenly but are too few or too imbalanced for shard-level sharding, applying sample-level shard... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8267 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8267/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8267/comments | https://api.github.com/repos/huggingface/datasets/issues/8267/events | https://github.com/huggingface/datasets/pull/8267 | 4,655,715,782 | PR_kwDODunzps7mFBCj | 8,267 | Fix webdataset type inference when a field is null in the first examples (#7549) | {
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} | Fixes #7549.
The webdataset builder types any JSON field that is null (or an empty list) in all of the first `NUM_EXAMPLES_FOR_FEATURES_INFERENCE = 5` examples as arrow `null`, and the first later batch with a real value then fails the strict cast in `cast_array_to_feature`. Promoting the schema mid-write isn't an opt... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8266 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8266/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8266/comments | https://api.github.com/repos/huggingface/datasets/issues/8266/events | https://github.com/huggingface/datasets/pull/8266 | 4,655,621,592 | PR_kwDODunzps7mEum8 | 8,266 | Use cached .no_exist entries from the hub cache in cached_path (#7686) | {
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} | Fixes #7686.
`cached_path` requested the Hub on every call for files that usually don't exist in dataset repos (`.huggingface.yaml`, `dataset_infos.json`) because its `hf://` branch goes straight to `HfApi.hf_hub_download`. It now consults `huggingface_hub.try_to_load_from_cache` first and raises `FileNotFoundError` r... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8265 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8265/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8265/comments | https://api.github.com/repos/huggingface/datasets/issues/8265/events | https://github.com/huggingface/datasets/pull/8265 | 4,654,957,223 | PR_kwDODunzps7mCwH9 | 8,265 | Add support audio from video | {
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} | Add support for extracting video from audio. Closes https://github.com/huggingface/datasets/issues/8007
Example:
```python
from datasets import load_dataset
test_ds = load_dataset("Samoed/testds")
test_ds["train"][0]["video"].audio
# <datasets.features._torchcodec.AudioDecoder object at 0x34422fb60>
test_ds[... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8264 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8264/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8264/comments | https://api.github.com/repos/huggingface/datasets/issues/8264/events | https://github.com/huggingface/datasets/pull/8264 | 4,651,573,466 | PR_kwDODunzps7l3-7K | 8,264 | docs: sync four docstrings with their actual signatures | {
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"Added one more: `DatasetBuilder.as_dataset` documented a `verification_mode` parameter it doesn't accept (signature is `(self, split=None, in_memory=False)`) — dropped the stale entry. Same drift class as the others."
] | 2026-06-12T18:14:05Z | 2026-06-16T19:04:07Z | null | null | CONTRIBUTOR | [] | null | null | 0 | {
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} | ## What does this PR do?
Audits docstring Args sections against actual signatures and fixes three drifts:
### `Dataset.train_test_split`
The Args section documents `train_cache_file_name` / `test_cache_file_name` — **neither is a parameter**; the real names are `train_indices_cache_file_name` / `test_indices_cache_f... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8263 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8263/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8263/comments | https://api.github.com/repos/huggingface/datasets/issues/8263/events | https://github.com/huggingface/datasets/pull/8263 | 4,651,542,146 | PR_kwDODunzps7l34ig | 8,263 | support droid agent traces | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8263). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-06-12T18:08:48Z | 2026-06-17T13:06:43Z | 2026-06-17T13:06:41Z | null | CONTRIBUTOR | [] | null | null | 0 | {
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> [!NOTE]
> **License and capability clarification (2026-07-14):** FunASR is a toolkit, not a single checkpoint. The [FunASR](https://github.com/modelscope/FunASR#license) and [SenseVoice](https://github.com/FunAudioLLM/SenseVoice#license) repository source code is MIT; model ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8260 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8260/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8260/comments | https://api.github.com/repos/huggingface/datasets/issues/8260/events | https://github.com/huggingface/datasets/pull/8260 | 4,644,413,236 | PR_kwDODunzps7lgzRi | 8,260 | Fix data file patterns starting with "./" for Hub datasets (#7727) | {
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} | Fixes #7727.
`data_files` patterns starting with `./` raise `FileNotFoundError` when the dataset is loaded from the Hub, even though the same patterns work locally.
The asymmetry comes from `resolve_pattern()`: it joins relative patterns onto the base path with `xjoin` (a plain `posixpath.join`), which keeps the `.` ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8259 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8259/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8259/comments | https://api.github.com/repos/huggingface/datasets/issues/8259/events | https://github.com/huggingface/datasets/pull/8259 | 4,641,430,204 | PR_kwDODunzps7lXAY_ | 8,259 | Fix batch(by_column=...) crashing after shard/shuffle/split | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8259). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-06-11T14:30:32Z | 2026-06-11T15:57:17Z | 2026-06-11T15:57:16Z | null | MEMBER | [] | null | null | 0 | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | ## Bug
`batch(by_column=...)` (#8172) works when you iterate the dataset directly, but crashes as soon as the dataset gets copied into a new shape — which happens in very common situations: calling `.shard()` or `.shuffle()`, using `split_dataset_by_node`, or just using a torch `DataLoader` with `num_workers > 0` (e... | {
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https://api.github.com/repos/huggingface/datasets/issues/8258 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8258/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8258/comments | https://api.github.com/repos/huggingface/datasets/issues/8258/events | https://github.com/huggingface/datasets/pull/8258 | 4,638,117,690 | PR_kwDODunzps7lMoUG | 8,258 | Add the supports of missing types in conversion between arrow and dtype types | {
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"@lhoestq Hi Quentin. A gentle ping to run the workflows",
"Hi! Can you only include the change for fixed_size_binary ? For the other types it requires discussing them in an issue first."
] | 2026-06-11T07:14:51Z | 2026-06-19T14:14:38Z | null | null | NONE | [] | null | null | 0 | {
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} | The original issue is a crash in _arrow_to_datasets_dtype because the miss of support of fixed_size_binary:
```
Exception: SplitsNotFoundError
Message: The split names could not be parsed from the dataset config.
Traceback: Traceback (most recent call last):
File "/usr/local/lib/python... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8257 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8257/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8257/comments | https://api.github.com/repos/huggingface/datasets/issues/8257/events | https://github.com/huggingface/datasets/pull/8257 | 4,637,211,254 | PR_kwDODunzps7lJwOT | 8,257 | fix: skip filename-based split detection for media files in get_data_… | {
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} | Fixes #7201
## Problem
When a user has an image file named `train.png` in a flat folder,
the library mistakenly treats it as a split name instead of an image,
resulting in only that one file being loaded.
## Fix
Modified `_get_data_files_patterns` in `data_files.py` to skip
filename-based split detection w... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8256 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8256/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8256/comments | https://api.github.com/repos/huggingface/datasets/issues/8256/events | https://github.com/huggingface/datasets/issues/8256 | 4,627,616,612 | I_kwDODunzps8AAAABE9PTZA | 8,256 | Dataset Viewer fails on TSFile datasets | {
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"Thanks for reporting ! I'm working on it :)\n\nThe viewer doesn't use `datasets` V5 yet, I have to do some minor adjustments first",
"I opened a PR that addresses the missing optional tsfile dependency error by replacing the raw ModuleNotFoundError with a clearer ImportError and adding a regression test.\n\nThis... | 2026-06-10T03:15:32Z | 2026-07-06T01:52:51Z | null | null | NONE | [] | null | null | null | null | ### Describe the bug
## Description
The Dataset Viewer fails when trying to display a dataset stored in TSFile format.
The error shown by the viewer is:
```python
ModuleNotFoundError: No module named 'tsfile'
### Steps to reproduce the bug
# Dataset Viewer fails to load TSFile dataset due to missing `tsfile` depe... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8255 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8255/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8255/comments | https://api.github.com/repos/huggingface/datasets/issues/8255/events | https://github.com/huggingface/datasets/pull/8255 | 4,622,727,887 | PR_kwDODunzps7kabPI | 8,255 | Support hermes traces | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8255). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"do we want to use teich for trace detection too to simplify somethings?\r\n\r\n```pytho... | 2026-06-09T14:09:47Z | 2026-06-10T13:22:27Z | 2026-06-10T13:22:25Z | null | MEMBER | [] | null | null | 0 | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | Parse hermes agent traces export using teich
supports both single session export and multi-sessions export
```bash
# single session
>>> hermes sessions export session.jsonl --session-id 20250305_091523_a1b2c3d4
# multi-sessions
>>> hermes sessions export sessions.jsonl
```
+ bump teich to 0.1.2
breakin... | {
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https://api.github.com/repos/huggingface/datasets/issues/8254 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8254/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8254/comments | https://api.github.com/repos/huggingface/datasets/issues/8254/events | https://github.com/huggingface/datasets/pull/8254 | 4,621,100,582 | PR_kwDODunzps7kVBP4 | 8,254 | Prefer torchvision to decode images instead of PIL | {
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"Sounds good ! Maybe a way to make it work even on List(Image()) would be to integrate it in decode_nested_example() directly (or copy and adapt decode_nested_example())\r\n\r\nE.g. decode_nested_example() could accept an argument that makes it use `_decode_image_for_torch` for Image() type instead of `Image.decode... | 2026-06-09T10:21:26Z | 2026-06-23T07:48:37Z | null | null | NONE | [] | null | null | 0 | {
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} | This PR uses `torchvision.io.decode_image` instead of `PIL.open()` to decode images when the `torch` formatter is used.
TorchVision is typically faster than PIL to decode images, and this also saves the `pil_to_tensor` conversion. See https://github.com/huggingface/transformers/pull/45195 for benchmarks on `transfom... | null | {
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"I feel like IterableDatasetShard is not well suited for this and shouldn't be used / should be improved. Instead there is `ds.shard()` or even `split_dataset_by_node()` which works when `num_physical_files < global_world_size`. WDYT ?",
"I checked current `main`, and the requested behavior seems to sit between t... | 2026-06-09T03:14:46Z | 2026-06-29T13:00:36Z | null | null | NONE | [] | null | null | null | null | ## Feature request: Add a streaming_shard operator for early sample-level sharding when file-level sharding is insufficient
### Proposed API
It would be useful to provide a first-class streaming sharding operator in `datasets`, for example:
```python
dataset = datasets.load_dataset(..., streaming=True, split="train"... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8252 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8252/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8252/comments | https://api.github.com/repos/huggingface/datasets/issues/8252/events | https://github.com/huggingface/datasets/pull/8252 | 4,617,669,510 | PR_kwDODunzps7kJsgc | 8,252 | docs: fix duplicate "to" in IterableDataset push-to-hub example | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | ## What does this PR do?
The save-to-hub paragraph in `docs/source/stream.mdx` (line 584) currently reads:
> "you wish to save it **to to** [`~Dataset.push_to_hub`]"
The first `to` closes the relative clause ("the repo you wish to save it to"), and the second `to` introduces the function argument. The collision read... | {
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https://api.github.com/repos/huggingface/datasets/issues/8251 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8251/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8251/comments | https://api.github.com/repos/huggingface/datasets/issues/8251/events | https://github.com/huggingface/datasets/pull/8251 | 4,615,134,743 | PR_kwDODunzps7kBMFr | 8,251 | chore: update release-conda.yml | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8251). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-06-08T17:30:58Z | 2026-06-08T17:34:44Z | null | null | NONE | [] | null | null | 0 | {
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} | Update `.github/workflows/release-conda.yml` workflow configuration.
cc @lhoestq
Closes huggingface/tracking-issues#808
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8250). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-06-08T17:23:09Z | 2026-06-08T17:30:40Z | 2026-06-08T17:30:38Z | null | MEMBER | [] | null | null | 0 | {
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https://api.github.com/repos/huggingface/datasets/issues/8249 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8249/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8249/comments | https://api.github.com/repos/huggingface/datasets/issues/8249/events | https://github.com/huggingface/datasets/pull/8249 | 4,609,447,743 | PR_kwDODunzps7jub7- | 8,249 | Catch RecursionError when decoding deeply nested mesh files (#8246) | {
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"Gentle bump on this one — it's a small, self-contained fix for the `RecursionError` on deeply nested mesh files (#8246), with a regression test, and CI is green. Happy to rebase or adjust if anything's needed. Thanks for taking a look!"
] | 2026-06-08T01:44:26Z | 2026-07-02T03:04:50Z | null | null | CONTRIBUTOR | [] | null | null | 0 | {
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} | Fixes #8246.
A GLB whose glTF JSON chunk is deeply nested (malformed or malicious) makes `trimesh.load` exceed Python's recursion limit while parsing it (`RecursionError: maximum recursion depth exceeded while decoding a JSON array`), crashing `Mesh.decode_example` with an uncaught error.
This routes both `trimesh.lo... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8248 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8248/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8248/comments | https://api.github.com/repos/huggingface/datasets/issues/8248/events | https://github.com/huggingface/datasets/pull/8248 | 4,609,204,292 | PR_kwDODunzps7jtrLA | 8,248 | Fix partial extraction when concurrent processes share a cache (#4661) | {
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} | Fixes #4661.
`ExtractManager.extract` runs the `_do_extract` "already extracted?" check outside any lock; the lock sits one level down in `Extractor.extract`. When two jobs share a cache, the second can catch a half-written output directory mid-extraction, assume it's done, and return a partial path.
This moves the l... | {
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https://api.github.com/repos/huggingface/datasets/issues/8247 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8247/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8247/comments | https://api.github.com/repos/huggingface/datasets/issues/8247/events | https://github.com/huggingface/datasets/issues/8247 | 4,607,104,776 | I_kwDODunzps8AAAABEprXCA | 8,247 | VORTEXRAG benchmarked on 6 HuggingFace datasets — new open-source RAG framework | {
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"gists_... | [] | open | false | [] | null | [] | 2026-06-07T11:14:50Z | 2026-06-07T11:14:50Z | null | null | NONE | [] | null | null | null | null | Hi HuggingFace Datasets team!
**VORTEXRAG** was evaluated on 6 datasets available on the HuggingFace Hub using datasets.load_dataset():
- NQ, TriviaQA, WebQ, PopQA, HotpotQA, 2WikiMultiHopQA
Results: EM 74.8, F1 82.6 averaged across all 6. Full evaluation code is in the repo.
- GitHub: https://github.com/vignesh202... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8246 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8246/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8246/comments | https://api.github.com/repos/huggingface/datasets/issues/8246/events | https://github.com/huggingface/datasets/issues/8246 | 4,606,509,015 | I_kwDODunzps8AAAABEpG_1w | 8,246 | RecursionError when loading GLB file with deeply nested JSON in Mesh feature | {
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Loading a GLB file with deeply nested JSON chunk causes a RecursionError, crashing the application.
## Step to Reproduce
```python
from datasets import Dataset, Mesh
import tempfile, os, struct
def make_malicious_glb(depth=5000):
json_chunk = (b'{"a":' * depth + b'1' + b'}' * depth)
magic = b... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8245 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8245/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8245/comments | https://api.github.com/repos/huggingface/datasets/issues/8245/events | https://github.com/huggingface/datasets/pull/8245 | 4,605,978,581 | PR_kwDODunzps7jju8n | 8,245 | Update inspect.py | {
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https://api.github.com/repos/huggingface/datasets/issues/8244 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8244/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8244/comments | https://api.github.com/repos/huggingface/datasets/issues/8244/events | https://github.com/huggingface/datasets/pull/8244 | 4,605,051,825 | PR_kwDODunzps7jg1Yj | 8,244 | Fix version string in __init__.py | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8244). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-06-06T20:45:33Z | 2026-06-06T21:47:33Z | 2026-06-06T21:47:31Z | null | MEMBER | [] | null | null | 0 | {
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https://api.github.com/repos/huggingface/datasets/issues/8243 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8243/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8243/comments | https://api.github.com/repos/huggingface/datasets/issues/8243/events | https://github.com/huggingface/datasets/pull/8243 | 4,600,109,722 | PR_kwDODunzps7jQ4z3 | 8,243 | Fix JSON loader schema inference for files starting with a UTF-8 BOM (#8241) | {
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] | 2026-06-05T21:03:24Z | 2026-06-09T15:48:26Z | 2026-06-09T15:48:26Z | null | CONTRIBUTOR | [] | null | null | 0 | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | Fixes #8241.
## What's the bug
When a JSONL file starts with a UTF-8 BOM (`\xef\xbb\xbf`), `load_dataset("json", ...)` infers a different schema than the same file without the BOM.
The JSON builder's first-batch "mixed-struct-types" pre-scan parses each line with `ujson` to decide whether to preserve heterogeneous n... | {
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https://api.github.com/repos/huggingface/datasets/issues/8242 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8242/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8242/comments | https://api.github.com/repos/huggingface/datasets/issues/8242/events | https://github.com/huggingface/datasets/issues/8242 | 4,599,059,760 | I_kwDODunzps8AAAABEiAVMA | 8,242 | "eval_strategy": "no" perform evaluation | {
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"Wrong repo, this belongs in axolotl, not `datasets`. And `eval_strategy: \"no\"` was never going to stop it.\n\nWhat hangs you is the diffusion plugin's sample generation. `DiffusionGenerationCallback.on_step_end` fires on `global_step % generation_interval == 0` and ignores `eval_strategy`. When you have no eval ... | 2026-06-05T18:08:17Z | 2026-06-20T14:48:43Z | null | null | NONE | [] | null | null | null | null | ### Describe the bug
Hi,
I'm trying to train a diffusion model and I getting stuck with
```
strace -p 967873
strace: Process 967873 attached
ioctl(9, _IOC(_IOC_READ|_IOC_WRITE, 0x46, 0x2a, 0x20), 0x7fff18579d90) = 0
ioctl(9, _IOC(_IOC_READ|_IOC_WRITE, 0x46, 0x2a, 0x20), 0x7fff18579d90) = 0
```
But my issue is that ... | null | {
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] | 2026-06-05T14:39:46Z | 2026-06-09T15:48:27Z | 2026-06-09T15:48:27Z | null | NONE | [] | null | null | null | null | ### Describe the bug
When a JSONL file starts with a UTF-8 BOM (`\xef\xbb\xbf`), `datasets.load_dataset("json", data_files=...)` infers a different schema than when the same file is loaded without the BOM. Specifically, the loader's "mixed-struct-types" pre-scan — which normally promotes columns with heterogeneous nes... | {
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https://api.github.com/repos/huggingface/datasets/issues/8240 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8240/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8240/comments | https://api.github.com/repos/huggingface/datasets/issues/8240/events | https://github.com/huggingface/datasets/pull/8240 | 4,597,394,026 | PR_kwDODunzps7jH1ik | 8,240 | set dev version | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8240). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
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https://api.github.com/repos/huggingface/datasets/issues/8239 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8239/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8239/comments | https://api.github.com/repos/huggingface/datasets/issues/8239/events | https://github.com/huggingface/datasets/pull/8239 | 4,597,207,473 | PR_kwDODunzps7jHOZ3 | 8,239 | Release: 5.0.0 | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8239). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-06-05T13:17:06Z | 2026-06-05T13:20:08Z | 2026-06-05T13:18:40Z | null | MEMBER | [] | null | null | 0 | {
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https://api.github.com/repos/huggingface/datasets/issues/8238 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8238/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8238/comments | https://api.github.com/repos/huggingface/datasets/issues/8238/events | https://github.com/huggingface/datasets/pull/8238 | 4,594,443,672 | PR_kwDODunzps7i-Kt_ | 8,238 | Fix imagefolder metadata with split-named files | {
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"Hi ! Maybe this improvement can be in get_data_patterns() directly ? The split-based detection could simply ignore files that are media files (images/audio/videos) and that have a split name in their file name. This way DEFAULT_PATTERNS_SPLIT_IN_FILENAME would return no files, and DEFAULT_PATTERNS_ALL would be use... | 2026-06-05T05:25:58Z | 2026-06-15T07:04:55Z | null | null | NONE | [] | null | null | 0 | {
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} | ## Summary
- Preserve folder-builder metadata when auto-inferred split filename patterns match only a file such as `train.png`
- Re-resolve default `**` patterns only for auto-inferred folder datasets when sidecar metadata would otherwise be dropped
- Add regression coverage for explicit `imagefolder`, local auto-detec... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8237 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8237/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8237/comments | https://api.github.com/repos/huggingface/datasets/issues/8237/events | https://github.com/huggingface/datasets/pull/8237 | 4,590,599,183 | PR_kwDODunzps7ixgvz | 8,237 | map reuses unchanged columns from the previous dataset to avoid disk usage | {
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} | https://github.com/huggingface/datasets/issues/6013
## Summary
This PR improves Dataset.map behavior by ensuring that unchanged columns are preserved after transformation.
Previously, in some cases, columns not explicitly modified by the mapping function could be lost or reconstructed during shard concatenatio... | {
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https://api.github.com/repos/huggingface/datasets/issues/8236 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8236/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8236/comments | https://api.github.com/repos/huggingface/datasets/issues/8236/events | https://github.com/huggingface/datasets/pull/8236 | 4,587,562,651 | PR_kwDODunzps7infTc | 8,236 | Fix iterable skip over full Arrow blocks | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8236). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-06-04T09:37:26Z | 2026-06-05T12:39:12Z | 2026-06-05T12:39:12Z | null | CONTRIBUTOR | [] | null | null | 0 | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | ## What does this PR do?
Fixes `IterableDataset.skip(n)` for streaming datasets when the underlying iterable uses Arrow batches and `n` skips one or more complete Arrow blocks.
Previously, after a full Arrow block was counted as skipped, `_iter_arrow()` continued into the partial-slice branch and yielded rows fro... | {
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