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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... | 2026-06-19T03:19:30 | 2026-06-20T01:42:59 | null | null | NONE | [] | null | null | false | {
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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"
] | 2026-06-17T13:01:36 | 2026-06-18T02:26:01 | 2026-06-17T13:02:42 | null | MEMBER | [] | null | null | false | {
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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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`_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!"
] | 2026-06-13T14:52:49 | 2026-06-13T14:55:21 | null | null | NONE | [] | null | null | false | {
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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."
] | 2026-06-12T18:14:05 | 2026-06-16T19:04:07 | null | null | CONTRIBUTOR | [] | null | null | false | {
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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."
] | 2026-06-12T18:08:48 | 2026-06-17T13:06:43 | 2026-06-17T13:06:41 | null | CONTRIBUTOR | [] | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/8261 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8261/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8261/comments | https://api.github.com/repos/huggingface/datasets/issues/8261/events | https://github.com/huggingface/datasets/issues/8261 | 4,648,405,033 | I_kwDODunzps8AAAABFREIKQ | 8,261 | Feature Proposal: Add FunASR Chinese/Multilingual ASR Benchmark Datasets | {
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- **SenseVoice**: Ultra-... | 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."
] | 2026-06-11T14:30:32 | 2026-06-11T15:57:17 | 2026-06-11T15:57:16 | null | MEMBER | [] | null | null | false | {
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"merged_at": "2026-06-11T15:57... | ## 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."
] | 2026-06-11T07:14:51 | 2026-06-19T14:14:38 | null | null | NONE | [] | null | null | false | {
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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"
] | 2026-06-10T03:15:32 | 2026-06-10T17:05:28 | 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... | 2026-06-09T14:09:47 | 2026-06-10T13:22:27 | 2026-06-10T13:22:25 | null | MEMBER | [] | null | null | false | {
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"merged_at": "2026-06-10T13:22... | 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... | 2026-06-09T10:21:26 | 2026-06-12T10:23:49 | null | null | NONE | [] | null | null | false | {
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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... | 2026-06-09T03:14:46 | 2026-06-12T11:06:56 | 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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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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"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."
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} | Update `.github/workflows/release-conda.yml` workflow configuration.
cc @lhoestq
Closes huggingface/tracking-issues#808
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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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} | 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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**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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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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"merged_at": "2026-06-09T15:48... | 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 ... | 2026-06-05T18:08:17 | 2026-06-20T14:48:43 | 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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https://api.github.com/repos/huggingface/datasets/issues/8241 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8241/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8241/comments | https://api.github.com/repos/huggingface/datasets/issues/8241/events | https://github.com/huggingface/datasets/issues/8241 | 4,597,756,669 | I_kwDODunzps8AAAABEgwy_Q | 8,241 | load_dataset("json", ...) infers a different schema when the JSONL file starts with a UTF-8 BOM | {
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"#self-assign"
] | 2026-06-05T14:39:46 | 2026-06-09T15:48:27 | 2026-06-09T15:48:27 | 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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"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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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... | 2026-06-05T05:25:58 | 2026-06-15T07:04:55 | null | null | NONE | [] | null | null | false | {
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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."
] | 2026-06-04T09:37:26 | 2026-06-05T12:39:12 | 2026-06-05T12:39:12 | null | CONTRIBUTOR | [] | null | null | false | {
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"merged_at": "2026-06-05T12:39... | ## 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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https://api.github.com/repos/huggingface/datasets/issues/8235 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8235/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8235/comments | https://api.github.com/repos/huggingface/datasets/issues/8235/events | https://github.com/huggingface/datasets/pull/8235 | 4,584,785,186 | PR_kwDODunzps7ieWtv | 8,235 | Clarify dataset creation vs loading workflows in create_dataset tutorial | {
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"merged_at": "2026-06-09T15:22... | This PR clarifies the distinction between dataset creation and dataset loading workflows in the create_dataset tutorial.
Changes:
- Added a note directing users to the loading guide.
- Clarified that `from_` methods create datasets from local Python objects rather than local files.
Addresses #5805. | {
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https://api.github.com/repos/huggingface/datasets/issues/8233 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8233/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8233/comments | https://api.github.com/repos/huggingface/datasets/issues/8233/events | https://github.com/huggingface/datasets/pull/8233 | 4,574,043,988 | PR_kwDODunzps7h67xt | 8,233 | Added/Improved doc strings for functions and classes in /src/datasets… | {
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https://api.github.com/repos/huggingface/datasets/issues/8232 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8232/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8232/comments | https://api.github.com/repos/huggingface/datasets/issues/8232/events | https://github.com/huggingface/datasets/pull/8232 | 4,573,312,492 | PR_kwDODunzps7h4h7C | 8,232 | Parse agent traces messages for SFT using `teich` | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8232). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-06-02T16:45:27 | 2026-06-03T14:46:58 | 2026-06-03T14:46:55 | null | MEMBER | [] | null | null | false | {
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"merged_at": "2026-06-03T14:46... | small breaking change (mostly for the dataset viewer on HF that has to take this into account): the field "traces" is renamed "trace" cc @cfahlgren1
This PR adds the `teich` extracted traces data, i.e. the fields messages, prompt, tools and metadata
```python
In [1]: from datasets import load_dataset
In [2]:... | {
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https://api.github.com/repos/huggingface/datasets/issues/8231 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8231/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8231/comments | https://api.github.com/repos/huggingface/datasets/issues/8231/events | https://github.com/huggingface/datasets/pull/8231 | 4,568,118,495 | PR_kwDODunzps7hnhUh | 8,231 | Keep None as a real null in Json() columns instead of the string "null" | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8231). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-06-02T03:23:35 | 2026-06-05T12:39:24 | 2026-06-05T12:39:24 | null | CONTRIBUTOR | [] | null | null | false | {
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"merged_at": "2026-06-05T12:39... | ## What this fixes
A missing value (`None`) in a `Json()` column is currently stored as the JSON string `"null"` instead of a real Arrow null. This has two visible consequences:
1. The column reports `null_count == 0` even when values are missing, and `is_null()` returns all `False`. Anything that relies on Arrow nul... | {
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https://api.github.com/repos/huggingface/datasets/issues/8229 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8229/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8229/comments | https://api.github.com/repos/huggingface/datasets/issues/8229/events | https://github.com/huggingface/datasets/pull/8229 | 4,559,692,487 | PR_kwDODunzps7hMFpS | 8,229 | Skip origin metadata fetch when streaming=True | {
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"Hi! Thanks for putting this PR together. Following up on the discussion in #8197 with the maintainers, instead of only applying this automatically for streaming, we should expose skip_origin_metadata=False as a public parameter (e.g., passing it through load_dataset into DatasetBuilder). Could you amend the PR?\r\... | 2026-06-01T01:28:14 | 2026-06-17T03:47:00 | null | null | NONE | [] | null | null | false | {
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} | Fixes #8197
When using `load_dataset(..., streaming=True, data_files=...)`, `DataFilesList.from_patterns` currently fetches origin metadata (ETag/mtime) for each resolved file even though the streaming pipeline doesn't use the local cache/fingerprint path.
This PR adds an opt-out (`skip_origin_metadata`) for data-fil... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8228 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8228/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8228/comments | https://api.github.com/repos/huggingface/datasets/issues/8228/events | https://github.com/huggingface/datasets/pull/8228 | 4,554,008,355 | PR_kwDODunzps7g7K93 | 8,228 | fix: stable fingerprint for closures capturing non-deterministic state | {
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"I feel like this would cause headaches to many people, causing cache reuses when the function actually changed",
"You're right, thank you for pointing that out. The current approach is too \r\nbroad — ignoring all non-primitive attributes could cause incorrect cache \r\nreuse when meaningful objects like tokeniz... | 2026-05-30T09:38:59 | 2026-06-14T05:49:22 | null | null | NONE | [] | null | null | false | {
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} | Fixes #7986
When `.map()` uses a closure capturing `self` with non-deterministic state
(like UUIDs or loggers), the fingerprint changes every run causing cache misses.
Fix: only hash primitive attributes of captured objects instead of the full object.
Added a regression test in `tests/test_fingerprint.py`. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8227 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8227/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8227/comments | https://api.github.com/repos/huggingface/datasets/issues/8227/events | https://github.com/huggingface/datasets/pull/8227 | 4,550,859,664 | PR_kwDODunzps7gxGQw | 8,227 | Security/Logic Fix: Autonomous Code Review | {
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} | ## Autonomous Bug Report & Patch
This vulnerability and fix were autonomously discovered by the Lucy Red Team swarm.
Upon reviewing the provided code snippet from `src/datasets/io/generator.py`, I didn't find any obvious critical bugs. However, there are a few areas that could be improved or clarified:
1. **Do... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8225 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8225/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8225/comments | https://api.github.com/repos/huggingface/datasets/issues/8225/events | https://github.com/huggingface/datasets/pull/8225 | 4,541,634,999 | PR_kwDODunzps7gSzm4 | 8,225 | Fix single lance file form pylance 7.0 | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8225). 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/8224 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8224/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8224/comments | https://api.github.com/repos/huggingface/datasets/issues/8224/events | https://github.com/huggingface/datasets/pull/8224 | 4,534,276,655 | PR_kwDODunzps7f6162 | 8,224 | fix: embed_external_files=True for mesh support | {
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"@lhoestq docs are ready.",
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8224). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-05-27T17:14:11 | 2026-06-01T10:15:56 | 2026-06-01T10:15:56 | null | CONTRIBUTOR | [] | null | null | false | {
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"merged_at": "2026-06-01T10:15... | ## Fix for #8055
This is follow-up PR for fixing a specific issue related to `dataset.push_to_hub(repo_id, embed_external_files=True)`
### Test Conducted
```python
from datasets import Features, Image, Mesh, Value, load_dataset
repo_id = "VINAY-UMRETHE/My-Mesh-Dataset"
dataset = load_dataset("json", ... | {
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https://api.github.com/repos/huggingface/datasets/issues/8223 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8223/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8223/comments | https://api.github.com/repos/huggingface/datasets/issues/8223/events | https://github.com/huggingface/datasets/pull/8223 | 4,530,285,942 | PR_kwDODunzps7ftwk8 | 8,223 | DOC: document missing save_infos and max_depth parameters | {
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} | ## What this fixes
Two public API functions were missing parameters from their docstrings:
### 1. `load_dataset()` — missing `save_infos`
The `save_infos` parameter has been in the function signature but was absent from the `Args` section of the docstring. When `save_infos=True`, it overrides `verification_mod... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8222 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8222/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8222/comments | https://api.github.com/repos/huggingface/datasets/issues/8222/events | https://github.com/huggingface/datasets/pull/8222 | 4,528,837,662 | PR_kwDODunzps7fpIh- | 8,222 | Validate split name before starting download | {
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} | ## What this fixes
Closes #5523.
When you pass an invalid split name to `load_dataset()`, the error only surfaces after the entire dataset has already been downloaded. For large datasets that can mean waiting many minutes before seeing a one-liner like:
```python
from datasets import load_dataset
load_dataset("mozil... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8221 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8221/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8221/comments | https://api.github.com/repos/huggingface/datasets/issues/8221/events | https://github.com/huggingface/datasets/pull/8221 | 4,523,496,440 | PR_kwDODunzps7fXz19 | 8,221 | chore: enable Dependabot weekly GitHub Actions bumps | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8221). 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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} | ## Summary
Adds `.github/dependabot.yml` so this repo's pinned GitHub Action SHAs
get bumped automatically once a week.
All action updates are **grouped into one weekly PR** (not one PR per
action) to keep the noise down, and Dependabot waits **7 days after a
release before opening the bump** (cooldown). The 7-day co... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8220 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8220/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8220/comments | https://api.github.com/repos/huggingface/datasets/issues/8220/events | https://github.com/huggingface/datasets/pull/8220 | 4,508,933,683 | PR_kwDODunzps7eqDip | 8,220 | Support composed splits in streaming datasets | {
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] | 2026-05-23T16:41:38 | 2026-06-05T12:46:55 | 2026-06-05T12:46:55 | null | CONTRIBUTOR | [] | null | null | false | {
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"merged_at": "2026-06-05T12:46... | Fixes #2699
Fixes #4804
This PR adds support for unsliced split composition when loading datasets in streaming mode, e.g. `split="train+validation"`.
Previously, `DatasetBuilder.as_streaming_dataset()` only accepted a single split name or returned all splits as an `IterableDatasetDict`, so composed split strings... | {
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https://api.github.com/repos/huggingface/datasets/issues/8219 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8219/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8219/comments | https://api.github.com/repos/huggingface/datasets/issues/8219/events | https://github.com/huggingface/datasets/pull/8219 | 4,508,075,431 | PR_kwDODunzps7enWfQ | 8,219 | Add `.conll` / `.conllu` dataset format loader (CoNLL-2003 / 2000 / U) | {
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"merged_at": "2026-05-27T14:09... | Closes #7757.
## Summary
Adds a `packaged_modules/conll/` builder so `.conll` and `.conllu` files load directly via `load_dataset(...)` without manual parsing scripts. Each row of the loaded dataset corresponds to one sentence, with each configured column produced as a list aligned with the token list.
Builder... | {
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https://api.github.com/repos/huggingface/datasets/issues/8218 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8218/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8218/comments | https://api.github.com/repos/huggingface/datasets/issues/8218/events | https://github.com/huggingface/datasets/pull/8218 | 4,502,066,792 | PR_kwDODunzps7eUKFZ | 8,218 | Include version in DatasetInfo YAML so push_to_hub preserves it | {
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} | DatasetInfo._INCLUDED_INFO_IN_YAML controls which fields land in the README.md dataset_info block written by push_to_hub, and it currently omits version. Setting version on a Dataset (e.g. via load_dataset(..., version=...)) and pushing it to the Hub silently drops the version from the rendered front matter, so reloadi... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8217 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8217/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8217/comments | https://api.github.com/repos/huggingface/datasets/issues/8217/events | https://github.com/huggingface/datasets/issues/8217 | 4,501,694,591 | I_kwDODunzps8AAAABDFJofw | 8,217 | Multi-GPU Training with Large Dataset — NCCL Timeouts / Slow Data Loading + Excessive Memory Usage with keep_in_memory=True | {
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"Hi @D222097,\n\nWe have audited the architectural footprint of your multi-GPU training setup. The behaviors you are experiencing are not bugs within the `datasets` library, but rather fundamental limitations of Python's process architecture interacting with hardware topologies. \n\nHere is the clinical breakdown o... | 2026-05-22T09:55:13 | 2026-06-03T02:12:43 | 2026-06-03T02:12:43 | null | NONE | [] | null | null | null | null | Hi, I'm training a large dataset using Lerobot (which relies on Hugging Face Datasets) and encountering severe performance issues when scaling to multi-GPU training.
### Problem Description
- Unstable/slow data loading + NCCL timeouts
- Step time fluctuates drastically: ~1s/step (fast) vs ~45s/step (extremely slow)
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https://api.github.com/repos/huggingface/datasets/issues/8216 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8216/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8216/comments | https://api.github.com/repos/huggingface/datasets/issues/8216/events | https://github.com/huggingface/datasets/pull/8216 | 4,498,562,992 | PR_kwDODunzps7eI6YH | 8,216 | Read cached dataset_info.json to populate config_names offline | {
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} | ## What
`get_dataset_config_names` with `HF_DATASETS_OFFLINE=1` returns `['default']` even when the cache contains multiple config subdirectories for the dataset. For example, after caching `cais/mmlu`:
```
$ HF_DATASETS_OFFLINE=1 python -c "import datasets; print(datasets.get_dataset_config_names('cais/mmlu'))"
Usin... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8215 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8215/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8215/comments | https://api.github.com/repos/huggingface/datasets/issues/8215/events | https://github.com/huggingface/datasets/pull/8215 | 4,498,546,886 | PR_kwDODunzps7eI29O | 8,215 | Warn instead of raise when user-provided data_files yields a subset | {
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"I think we can simply not raise or warn anything at all when the user provides the data_files. The number of examples is expected to be likely different",
"Makes sense, done in 2162efc. verify_splits now returns early when the user passed data_files, so there is no raise and no warning at all in that case. The e... | 2026-05-21T23:23:19 | 2026-06-05T13:30:46 | null | null | CONTRIBUTOR | [] | null | null | false | {
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} | Fixes #7867.
NonMatchingSplitsSizesError currently fires whenever the loaded split size differs from the expected size, including when the user explicitly passed data_files for a known subset of the dataset. The only user-side workaround is verification_mode='no_checks', which silences ALL checks rather than just the ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8214 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8214/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8214/comments | https://api.github.com/repos/huggingface/datasets/issues/8214/events | https://github.com/huggingface/datasets/pull/8214 | 4,495,428,150 | PR_kwDODunzps7d-pbh | 8,214 | Add return_file_name parameter to JSON builder (#5806) | {
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} | ## Description
Resolves #5806.
This PR introduces an optional `return_file_name` boolean parameter to the packaged JSON builder. When enabled, it injects a `file_name` column into the generated PyArrow tables, allowing downstream users to track exactly which data shard a specific row originated from during interrup... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8213 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8213/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8213/comments | https://api.github.com/repos/huggingface/datasets/issues/8213/events | https://github.com/huggingface/datasets/pull/8213 | 4,494,002,929 | PR_kwDODunzps7d59EY | 8,213 | update single seg repos in ci | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8213). 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/8212 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8212/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8212/comments | https://api.github.com/repos/huggingface/datasets/issues/8212/events | https://github.com/huggingface/datasets/pull/8212 | 4,487,898,110 | PR_kwDODunzps7dmXMH | 8,212 | docs: surface `repository_structure` earlier in the Get Started flow | {
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} | > **Dear maintainer** — this PR has a permanent home with methodology + [opt-out](https://github.com/adv0r/tokens-for-good/blob/main/MAINTAINER_REMOVAL.md) at [tokens-for-good](https://github.com/adv0r/tokens-for-good). A one-line "no thanks" → auto-close + blacklist. Sorry for the notification this edit caused.
>
> --... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8211 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8211/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8211/comments | https://api.github.com/repos/huggingface/datasets/issues/8211/events | https://github.com/huggingface/datasets/pull/8211 | 4,483,594,156 | PR_kwDODunzps7dYTla | 8,211 | Fix duplicate keyword arguments | {
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https://api.github.com/repos/huggingface/datasets/issues/8210 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8210/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8210/comments | https://api.github.com/repos/huggingface/datasets/issues/8210/events | https://github.com/huggingface/datasets/pull/8210 | 4,479,156,338 | PR_kwDODunzps7dJ_cZ | 8,210 | Fix parquet columns arg | {
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"merged_at": "2026-05-20T10:32... | Fix the error message "The columns and features argument must contain the same columns, but got.." when passing `columns=` to load_dataset on a streaming parquet dataset (with features declared in the README.md)
useful e.g. for https://huggingface.co/datasets/jasperai/monet to load the thumbnails without the embeddi... | {
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https://api.github.com/repos/huggingface/datasets/issues/8209 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8209/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8209/comments | https://api.github.com/repos/huggingface/datasets/issues/8209/events | https://github.com/huggingface/datasets/pull/8209 | 4,472,836,908 | PR_kwDODunzps7c1qee | 8,209 | Preserve float columns when JSON loader uses `field=` | {
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} | Closes #6937.
When `load_dataset("json", data_files=..., field="data", ...)` is used, columns whose values are all integer-valued floats (`[0.0, 1.0, 2.0]`) get silently coerced to `int64`. Repro:
```python
import tempfile, json
from datasets import load_dataset
with tempfile.NamedTemporaryFile(mode="w", suffix=".js... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8208 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8208/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8208/comments | https://api.github.com/repos/huggingface/datasets/issues/8208/events | https://github.com/huggingface/datasets/pull/8208 | 4,471,198,555 | PR_kwDODunzps7cwTO1 | 8,208 | update readme | {
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https://api.github.com/repos/huggingface/datasets/issues/8207 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8207/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8207/comments | https://api.github.com/repos/huggingface/datasets/issues/8207/events | https://github.com/huggingface/datasets/pull/8207 | 4,469,331,415 | PR_kwDODunzps7cqORG | 8,207 | fix docs: use AutoImageProcessor for vision model examples | {
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"Thanks for the clear explanation! Good catch keeping AutoFeatureExtractor \r\nin the audio section since it's still valid there. The vision section \r\nupdate looks correct to me."
] | 2026-05-18T13:03:41 | 2026-05-21T02:23:06 | null | null | NONE | [] | null | null | false | {
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} | swaps AutoFeatureExtractor for AutoImageProcessor in the image preprocessing section of use_dataset.mdx — aligns with the transformers library direction where vision feature extractor references were already replaced in their own docs (see PRs #20111 and #20501). audio section is untouched since AutoFeatureExtractor is... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8206 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8206/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8206/comments | https://api.github.com/repos/huggingface/datasets/issues/8206/events | https://github.com/huggingface/datasets/pull/8206 | 4,463,863,740 | PR_kwDODunzps7cZASu | 8,206 | Fix duplicate keyword arguments | {
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} | ## Summary
This PR fixes a duplicate keyword argument collision in `load_dataset_builder()` when the same parameter is passed through both `builder_kwargs` and `config_kwargs`.
Previously, calling `load_dataset()` or `load_dataset_builder()` with arguments such as `base_path` could raise:
```python
TypeError:... | {
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https://api.github.com/repos/huggingface/datasets/issues/8205 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8205/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8205/comments | https://api.github.com/repos/huggingface/datasets/issues/8205/events | https://github.com/huggingface/datasets/pull/8205 | 4,460,303,029 | PR_kwDODunzps7cOjxM | 8,205 | fix: pass token_per_repo_id to embed_table_storage when pushing shards | {
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"token_per_repo_id is only useful for iterable datasets"
] | 2026-05-16T15:12:27 | 2026-05-18T14:01:36 | 2026-05-18T14:01:36 | null | NONE | [] | null | null | false | {
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} | ## Summary
- Fixes #6348
- When `push_to_hub` is called with a `token`, the per-repo token map (`token_per_repo_id`) is built correctly earlier in the function — but it was never forwarded to `embed_table_storage` during the shard-map step.
- This caused a one-line fix: wrap `embed_table_storage` with `functools.parti... | {
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https://api.github.com/repos/huggingface/datasets/issues/8204 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8204/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8204/comments | https://api.github.com/repos/huggingface/datasets/issues/8204/events | https://github.com/huggingface/datasets/issues/8204 | 4,460,017,531 | I_kwDODunzps8AAAABCdZ3ew | 8,204 | Please enable Private Vulnerability Reporting | {
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I have a security finding in datasets that I would like to disclose privately. GitHub Private Vulnerability Reporting is currently disabled on this repo.
Could you turn it on? It's at Settings > Security > Code security and analysis > Private vulnerability reporting. Once enabled I will file the ful... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8203 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8203/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8203/comments | https://api.github.com/repos/huggingface/datasets/issues/8203/events | https://github.com/huggingface/datasets/pull/8203 | 4,458,974,796 | PR_kwDODunzps7cKtna | 8,203 | fix(webdataset): when loading data in WebDataset format using load_datasets during multi-matchines training. | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8203). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-05-16T06:41:37 | 2026-05-18T14:06:27 | null | null | NONE | [] | null | null | false | {
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} | ## Description
Fixes #8201
**The Bug:**
During distributed training with `streaming=True`, if a user provides fewer `.tar` files than the number of distributed ranks, some ranks receive an empty list of files. This caused an `IndexError: list index out of range` in `webdataset.py` because the code assumed `tar_pa... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8202 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8202/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8202/comments | https://api.github.com/repos/huggingface/datasets/issues/8202/events | https://github.com/huggingface/datasets/pull/8202 | 4,457,976,169 | PR_kwDODunzps7cHqfh | 8,202 | fix pathlib.Path support in save_to_disk and load_from_disk | {
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} | `url_to_fs` from fsspec only accepts strings, but `save_to_disk` and `load_from_disk` in `arrow_dataset.py`, `dataset_dict.py`, and `load.py` pass the user-supplied path directly without converting it, causing a crash when a `pathlib.Path` is provided. Added `str()` conversion at each `url_to_fs` call site so all path-... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8201 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8201/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8201/comments | https://api.github.com/repos/huggingface/datasets/issues/8201/events | https://github.com/huggingface/datasets/issues/8201 | 4,456,407,352 | I_kwDODunzps8AAAABCZ9hOA | 8,201 | Encountered an error when loading data in WebDataset format using `load_datasets` during multi-matchines training. | {
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"Hi @aihao2000 ! I was looking into this multi-machine training scenario and just opened a PR (#8203 ) that safely skips feature inference for empty shards during distributed streaming.\n\nplease! Check it out and see if it looks like it will resolve the weird bugs you were hitting!",
"it looks like there less da... | 2026-05-15T19:21:24 | 2026-05-20T12:58:57 | null | null | NONE | [] | null | null | null | null | ### Describe the bug
Single-machine training works fine, but multi-machine training throws up all sorts of weird bugs. Help me!
### Steps to reproduce the bug
train_dataset = load_dataset(
"webdataset", data_files=args.train_dataset, split="train", streaming=True,cache_dir='/dev/shm/.cache'
)
args.train... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8200 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8200/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8200/comments | https://api.github.com/repos/huggingface/datasets/issues/8200/events | https://github.com/huggingface/datasets/pull/8200 | 4,455,850,853 | PR_kwDODunzps7cAyOW | 8,200 | replace AutoFeatureExtractor with AutoImageProcessor in docs | {
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} | Closes #8199
## What does this PR do?
Replaces `AutoFeatureExtractor` with `AutoImageProcessor` in the image augmentation example in `docs/source/use_dataset.mdx`. For vision models, `AutoImageProcessor` is the recommended API and better reflects current `transformers` conventions.
This is consistent with the ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8199 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8199/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8199/comments | https://api.github.com/repos/huggingface/datasets/issues/8199/events | https://github.com/huggingface/datasets/issues/8199 | 4,455,786,605 | I_kwDODunzps8AAAABCZXobQ | 8,199 | Replace AutoFeatureExtractor with AutoImageProcessor in image preprocessing docs | {
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"I'd like to work on this. I'll open a PR shortly."
] | 2026-05-15T17:34:53 | 2026-05-15T17:56:57 | null | null | NONE | [] | null | null | null | null | ## Summary
The `docs/source/use_dataset.mdx` documentation uses `AutoFeatureExtractor` from `transformers` in its image preprocessing example. For vision models, `AutoImageProcessor` is now the recommended API and better reflects current `transformers` conventions.
## Problem
In the [[Apply data augmentations](https... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8198 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8198/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8198/comments | https://api.github.com/repos/huggingface/datasets/issues/8198/events | https://github.com/huggingface/datasets/pull/8198 | 4,453,054,930 | PR_kwDODunzps7b3uHD | 8,198 | Fix/type hints list to sequence | {
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} | Fix #5354 Consider using "Sequence" instead of "List"
In datasets/arrow_writer.py, replaced all the type annotations of List method with Sequence.
Library used and changes made are as follows:
```bash
from collections.abc import Sequence as Sequence_
Before : List(Image())
After : Sequence_(Image())
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https://api.github.com/repos/huggingface/datasets/issues/8197 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8197/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8197/comments | https://api.github.com/repos/huggingface/datasets/issues/8197/events | https://github.com/huggingface/datasets/issues/8197 | 4,452,221,355 | I_kwDODunzps8AAAABCV-Bqw | 8,197 | Feature Request / Discussion: Skip origin_metadata fetch when streaming=True? | {
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"I think it's great that it checks that every file does exist by default. It's relatively cheap since it uses fsspec which caches file info at folder level.\n\nOn the other hand why not add skip_origin_metadata=False from @TheDerbiedOne by default to DatasetBuilder and document what it does (load_dataset passes kwa... | 2026-05-15T07:43:57 | 2026-06-17T03:39:14 | null | null | NONE | [] | null | null | null | null | Hi team!
I've been looking into the initialization process of the `DatasetBuilder` and noticed that the ETag/origin metadata caching path is executed unconditionally.
While fetching the `origin_metadata` and calculating the ETag is necessary for safely managing a local disk cache when using `as_dataset()`, it seems t... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8196 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8196/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8196/comments | https://api.github.com/repos/huggingface/datasets/issues/8196/events | https://github.com/huggingface/datasets/pull/8196 | 4,445,562,409 | PR_kwDODunzps7bf5Kz | 8,196 | fix(arrow_dataset): clear stale local temp dir before re-downloading from remote FS | {
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} | ## What does this PR do?
Fixes #5114 — `Dataset.load_from_disk` raises a `FileNotFoundError` when called **twice** on the same remote-filesystem path within the same Python session.
### Root cause
`Dataset.load_from_disk` uses `fs.download(src, dest, recursive=True)` to copy the remote dataset to a local temp direct... | {
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https://api.github.com/repos/huggingface/datasets/issues/8195 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8195/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8195/comments | https://api.github.com/repos/huggingface/datasets/issues/8195/events | https://github.com/huggingface/datasets/pull/8195 | 4,428,413,094 | PR_kwDODunzps7aombr | 8,195 | Fix spurious label column when folder builders see split-named directories | {
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} | Closes #7880.
## What
`folder_based_builder._split_generators` allocates a single `labels: set[str]` outside the per-split loop and `analyze(...)` mutates it across every split. When the user passes:
```python
load_dataset("audiofolder", data_files={"train": "train/**", "test": "test/**"})
```
and the actual files ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8194 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8194/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8194/comments | https://api.github.com/repos/huggingface/datasets/issues/8194/events | https://github.com/huggingface/datasets/pull/8194 | 4,421,910,623 | PR_kwDODunzps7aTbgX | 8,194 | Use multiple input shards for shuffle buffer | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8194). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-05-11T15:04:57 | 2026-05-18T13:59:11 | 2026-05-18T13:59:07 | null | MEMBER | [] | null | null | false | {
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"merged_at": "2026-05-18T13:59... | ```python
ds = load_dataset(..., streaming=True)
ds = ds.shuffle(seed=42)
# or configure local buffer shuffling manually, default is:
ds = ds.shuffle(seed=42, buffer_size=1000, max_buffer_input_shards=10)
```
before👎:
<img width="1061" height="529" alt="image" src="https://github.com/user-attachments/assets/d... | {
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https://api.github.com/repos/huggingface/datasets/issues/8193 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8193/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8193/comments | https://api.github.com/repos/huggingface/datasets/issues/8193/events | https://github.com/huggingface/datasets/pull/8193 | 4,421,892,524 | PR_kwDODunzps7aTXtB | 8,193 | fix parquet reshard | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8193). 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/8192 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8192/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8192/comments | https://api.github.com/repos/huggingface/datasets/issues/8192/events | https://github.com/huggingface/datasets/pull/8192 | 4,415,549,847 | PR_kwDODunzps7Z_Rpc | 8,192 | Escape glob chars in `base_path` so directory paths with `[]` work (#7468) | {
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} | Fixes #7468.
## Summary
`load_dataset(..., data_dir="/path/[D_DATA]/foo")` — or any path with `[`, `]`, `*`, `?` in the literal directory name — failed: `fs.glob` interpreted the bracketed segment as a glob character class, walked a much larger tree (often the whole disk on Windows) and returned no files. Users saw a... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8191 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8191/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8191/comments | https://api.github.com/repos/huggingface/datasets/issues/8191/events | https://github.com/huggingface/datasets/pull/8191 | 4,415,543,737 | PR_kwDODunzps7Z_QiE | 8,191 | Preserve `info.features` across `IterableDataset.map(remove_columns=...)` (#7568) | {
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} | Fixes #7568.
## Summary
`IterableDataset.map(remove_columns=[...])` (without an explicit `features=` and without a user-provided `function`) overwrites `info.features` with `None`, so `IterableDataset.column_names` (which reads `info.features.keys()`) silently becomes `None`. The same regression bubbles up through `I... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8190 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8190/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8190/comments | https://api.github.com/repos/huggingface/datasets/issues/8190/events | https://github.com/huggingface/datasets/pull/8190 | 4,415,531,092 | PR_kwDODunzps7Z_N_4 | 8,190 | Reject `num_shards > len(dataset)` in `Dataset.shard` (#7443) | {
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## Summary
`Dataset.shard(num_shards=N, index=i)` with `N > len(dataset)`:
- silently produced empty shards (`contiguous=True`)
- crashed with `IndexError: Index ... out of range for dataset of size ...` deep in `.select` (`contiguous=False`)
`push_to_hub` / `save_to_disk` then surfaced this confusing I... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8189 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8189/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8189/comments | https://api.github.com/repos/huggingface/datasets/issues/8189/events | https://github.com/huggingface/datasets/pull/8189 | 4,415,209,402 | PR_kwDODunzps7Z-RVx | 8,189 | docs: clarify `num_proc` semantics in `Dataset.batch` / `Dataset.filter` (#7700) | {
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## Summary
`Dataset.batch.num_proc` and `Dataset.filter.num_proc` had a one-liner docstring (\"Max number of processes when generating cache. Already cached shards are loaded sequentially.\") that left readers wondering whether `None` means "no multiprocessing" or "pick a number".
Both methods simply de... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8188 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8188/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8188/comments | https://api.github.com/repos/huggingface/datasets/issues/8188/events | https://github.com/huggingface/datasets/pull/8188 | 4,415,204,219 | PR_kwDODunzps7Z-QXb | 8,188 | Don't infer labels from split-named directories in folder-based builders (#7880) | {
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## Summary
When an `audiofolder`/`imagefolder`/`videofolder` dataset is laid out as
```
folder/train/file0.mp3
folder/test/file1.mp3
```
with no class subdirectories, label inference accumulates the parent directory of each file across **all splits**, ends up with `labels = {\"train\", \"test\"}`, sees... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8187 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8187/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8187/comments | https://api.github.com/repos/huggingface/datasets/issues/8187/events | https://github.com/huggingface/datasets/pull/8187 | 4,415,194,146 | PR_kwDODunzps7Z-Oly | 8,187 | Better error for sliced splits in streaming mode (`train[:10%]`, `train[:N]`) (#7721) | {
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## Summary
```python
load_dataset("user/dataset", split="train[0%:10%]", streaming=True)
```
raised the generic
```
ValueError: Bad split: train[0%:10%]. Available splits: ['train']
```
which makes it look like the slice syntax is malformed. The actual reason is that streaming mode doesn't know the da... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8186 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8186/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8186/comments | https://api.github.com/repos/huggingface/datasets/issues/8186/events | https://github.com/huggingface/datasets/pull/8186 | 4,415,184,225 | PR_kwDODunzps7Z-Mq4 | 8,186 | docs: fix broken WebDataset documentation link in audio/video/image dataset pages (#7699) | {
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## Summary
The link to the WebDataset documentation in the audio, video and image dataset docs pages points to `https://webdataset.github.io/webdataset`, which returns **HTTP 404**.
The WebDataset library now lives at `https://github.com/webdataset/webdataset`, which is the canonical documentation entry... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8185 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8185/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8185/comments | https://api.github.com/repos/huggingface/datasets/issues/8185/events | https://github.com/huggingface/datasets/pull/8185 | 4,415,181,708 | PR_kwDODunzps7Z-MNS | 8,185 | docs: make `Dataset.map` batched example self-contained (#7703) | {
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## Summary
The batched-map example in `Dataset.map`, `DatasetDict.map` and `docs/README.md` referenced `tokenizer` without defining or importing it:
```python
>>> ds = ds.map(lambda example: tokenizer(example["text"]), batched=True)
```
Users copy-pasting the snippet hit `NameError: name 'tokenizer' is... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8184 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8184/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8184/comments | https://api.github.com/repos/huggingface/datasets/issues/8184/events | https://github.com/huggingface/datasets/pull/8184 | 4,415,177,135 | PR_kwDODunzps7Z-Lac | 8,184 | Preserve triple-slash in remote URLs (HDFS, file://, ...) in `_as_str` (#7934) | {
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## Summary
`_as_str` routed every non-`xPath` argument — including raw strings — through `xPath(str(path))`, which inherits from `pathlib.PurePosixPath`. PurePosixPath collapses runs of slashes:
```python
>>> str(PurePosixPath("hdfs:///user/path/data.parquet"))
'hdfs:/user/path/data.parquet'
```
`xPath... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8183 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8183/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8183/comments | https://api.github.com/repos/huggingface/datasets/issues/8183/events | https://github.com/huggingface/datasets/pull/8183 | 4,415,165,590 | PR_kwDODunzps7Z-JW_ | 8,183 | Add dtype="list" to List / Sequence / LargeList features (#8002) | {
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## Summary
Most feature types expose a descriptive `dtype` string:
- `Value("int64").dtype == "int64"`
- `ClassLabel(...).dtype == "int64"`
- `Array2D(...).dtype == "<element-dtype>"`
- `Image().dtype == "PIL.Image.Image"`
- `Audio().dtype == "dict"`
But `List`, `LargeList` and `Sequence(non-dict)` (wh... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8182 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8182/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8182/comments | https://api.github.com/repos/huggingface/datasets/issues/8182/events | https://github.com/huggingface/datasets/pull/8182 | 4,415,150,410 | PR_kwDODunzps7Z-GeG | 8,182 | Fix Dataset.map crash when first examples return None and later return dict (#7990) | {
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## Summary
`Dataset.map` crashed with `AttributeError: 'NoneType' object has no attribute 'write'` when the user's map function returned `None` for the first few examples and a `dict` (or `pa.Table` / DataFrame) for later ones.
The writer was initialized only when `i == 0` (or `i[0] == 0` in batched mod... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8178 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8178/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8178/comments | https://api.github.com/repos/huggingface/datasets/issues/8178/events | https://github.com/huggingface/datasets/issues/8178 | 4,397,310,407 | I_kwDODunzps8AAAABBhmhxw | 8,178 | The full dataset viewer is not available (click to read why). Only showing a preview of the rows. Job manager crashed while running this job (missing heartbeats). Error code: JobManagerCrashedError | {
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"Oh yeah, we hit something pretty similar when running a dataset viewer on a large collection (~3M rows) a few months back. The JobManagerCrashedError with missing heartbeats usually showed up for us when the server process ran out of memory or couldn’t keep up with the load spikes during dataset streaming. Turns o... | 2026-05-07T08:33:48 | 2026-05-31T00:09:38 | null | null | NONE | [] | null | null | null | null | ### Describe the bug
The full dataset viewer is not available (click to read why). Only showing a preview of the rows.
Job manager crashed while running this job (missing heartbeats).
Error code: JobManagerCrashedError
see: https://huggingface.co/datasets/Genius-Society/tt100k/viewer
### Steps to reproduce the bug... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8177 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8177/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8177/comments | https://api.github.com/repos/huggingface/datasets/issues/8177/events | https://github.com/huggingface/datasets/pull/8177 | 4,397,142,016 | PR_kwDODunzps7ZDxl2 | 8,177 | Nightly OSS: Bug loading `sentence-transformers/parallel-sentences` | {
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Verification:
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This PR is generated by xodn348/oss-nightly-control and is opened ready for maintainer revie... | {
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https://api.github.com/repos/huggingface/datasets/issues/8176 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8176/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8176/comments | https://api.github.com/repos/huggingface/datasets/issues/8176/events | https://github.com/huggingface/datasets/pull/8176 | 4,392,230,993 | PR_kwDODunzps7Yz3YC | 8,176 | Fix Parquet streaming hangs at the end of script | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8176). 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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fix https://github.com/huggingface/datasets/issues/8169
fix https://github.com/huggingface/datasets/issues/7467 | {
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https://api.github.com/repos/huggingface/datasets/issues/8175 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8175/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8175/comments | https://api.github.com/repos/huggingface/datasets/issues/8175/events | https://github.com/huggingface/datasets/pull/8175 | 4,391,279,972 | PR_kwDODunzps7YwsCK | 8,175 | Support fsspec 2026.4.0 | {
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https://api.github.com/repos/huggingface/datasets/issues/8174 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8174/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8174/comments | https://api.github.com/repos/huggingface/datasets/issues/8174/events | https://github.com/huggingface/datasets/pull/8174 | 4,389,568,708 | PR_kwDODunzps7YrDH3 | 8,174 | feat: add `on_error` to Image/Audio/Video features and IterableDatase… | {
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"Hi @lhoestq — this PR implements your design from issue #8165. Quick alignment check:\n\n- **Q1 (Exception scope)**: catch-all `except Exception` in all three feature decoders (Image/Audio/Video) ✅\n- **Q2 (Default)**: `on_error=\"raise\"` preserves current behavior ✅\n- **Q3 (Naming)**: exposed via `IterableDatas... | 2026-05-06T07:29:30 | 2026-05-07T08:51:37 | null | null | NONE | [] | null | null | false | {
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} | …t.decode()
Adds a new `on_error` parameter that controls how decoding failures are handled. This addresses the long-standing problem where a single corrupted sample in a streaming dataset (bad EXIF, truncated bytes, unidentified format, ...) raises an exception inside the generator frame and silently kills the enti... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8173 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8173/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8173/comments | https://api.github.com/repos/huggingface/datasets/issues/8173/events | https://github.com/huggingface/datasets/pull/8173 | 4,381,711,703 | PR_kwDODunzps7YRX72 | 8,173 | fix(image): guard exif_transpose against corrupted EXIF rational tags | {
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} | ## Summary
When an `IterableDataset` contains images with corrupted EXIF metadata (e.g. a TIFF rational tag whose denominator is zero), `PIL.ImageOps.exif_transpose` raises `ZeroDivisionError` inside `Image.decode_example`. Because this exception escapes the internal generator frame, the streaming iterator dies immedi... | {
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