id int64 599M 3.48B | number int64 1 7.8k | title stringlengths 1 290 | state stringclasses 2
values | comments listlengths 0 30 | created_at timestamp[s]date 2020-04-14 10:18:02 2025-10-05 06:37:50 | updated_at timestamp[s]date 2020-04-27 16:04:17 2025-10-05 10:32:43 | closed_at timestamp[s]date 2020-04-14 12:01:40 2025-10-01 13:56:03 ⌀ | body stringlengths 0 228k ⌀ | user stringlengths 3 26 | html_url stringlengths 46 51 | pull_request dict | is_pull_request bool 2
classes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
3,484,470,782 | 7,798 | Audio dataset is not decoding on 4.1.1 | open | [
"Previously (datasets<=3.6.0), audio columns were decoded automatically when accessing a row. Now, for performance reasons, audio decoding is lazy by default: you just see the file path unless you explicitly cast the column to Audio.\n\nHere’s the fix (following the current [datasets audio docs](https://huggingface... | 2025-10-05T06:37:50 | 2025-10-05T10:32:43 | null | ### Describe the bug
The audio column remain as non-decoded objects even when accessing them.
```python
dataset = load_dataset("MrDragonFox/Elise", split = "train")
dataset[0] # see that it doesn't show 'array' etc...
```
Works fine with `datasets==3.6.0`
Followed the docs in
- https://huggingface.co/docs/dataset... | thewh1teagle | https://github.com/huggingface/datasets/issues/7798 | null | false |
3,473,011,621 | 7,797 | Datasets: Add WMT21 & WMT22 loaders (basic TSV loaders, sample data, tests) | open | [] | 2025-10-01T10:46:01 | 2025-10-01T16:38:49 | null | - Implemented TSV-based dataset loaders:
- WMT21Dataset (local_datasets/wmt21/wmt21_dataset.py)
- WMT22Dataset (local_datasets/wmt22/wmt22_dataset.py)
These classes load source-target pairs from .tsv files for train, validation, and test splits.
- Created sample dummy data for both datasets:
- dummy_da... | tanisha-samant | https://github.com/huggingface/datasets/pull/7797 | {
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3,470,616,799 | 7,796 | Docs: fix typo, improve readability, add code comments | open | [] | 2025-09-30T18:34:16 | 2025-09-30T18:34:16 | null | What I did:
- Fixed a small typo in README to improve clarity
- Fixed repeated word "frameworks frameworks"
- Split long paragraphs into shorter sentences for readability
- Added # Example comments before code blocks for clarity
Why:
- Helps new users avoid confusion
How I tested:
- Checked locally in Markd... | tanisha-samant | https://github.com/huggingface/datasets/pull/7796 | {
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"merged_at": null
} | true |
3,463,990,654 | 7,795 | Add pyarrow's binary view to features | open | [
"@lhoestq 🙏 "
] | 2025-09-29T09:12:55 | 2025-09-29T09:14:34 | null | Basically https://github.com/huggingface/datasets/pull/7718 just for binary view instead of string view | delta003 | https://github.com/huggingface/datasets/pull/7795 | {
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3,460,793,966 | 7,794 | Fix nested data conversions error in parquet loading (fixes #7793) | open | [
"Unfortunately, I'm running into this error:\r\n```\r\n~/scratch » uv run python test_hf.py \r\nResolving data file... | 2025-09-27T22:04:13 | 2025-10-01T16:56:20 | null | Fixes #7793
## Problem
Loading datasets with deeply nested structures (like `metr-evals/malt-public`) fails with:
ArrowNotImplementedError: Nested data conversions not implemented for chunked array outputs
This occurs when parquet files contain nested data (lists, structs, maps) that exceed PyArrow's 16MB chun... | Aishwarya0811 | https://github.com/huggingface/datasets/pull/7794 | {
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"merged_at": null
} | true |
3,459,496,971 | 7,793 | Cannot load dataset, fails with nested data conversions not implemented for chunked array outputs | open | [
"Hey @neevparikh,\nThanks for reporting this! I can reproduce the issue and have identified the root cause.\nProblem: The metr-evals/malt-public dataset contains deeply nested conversation data that exceeds PyArrow's 16MB chunk limit. When PyArrow tries to read it in chunks, it hits a fundamental limitation: \"Nest... | 2025-09-27T01:03:12 | 2025-09-27T21:35:31 | null | ### Describe the bug
Hi! When I load this dataset, it fails with a pyarrow error. I'm using datasets 4.1.1, though I also see this with datasets 4.1.2
To reproduce:
```
import datasets
ds = datasets.load_dataset(path="metr-evals/malt-public", name="irrelevant_detail")
```
Error:
```
Traceback (most recent call las... | neevparikh | https://github.com/huggingface/datasets/issues/7793 | null | false |
3,456,802,210 | 7,792 | Concatenate IterableDataset instances and distribute underlying shards in a RoundRobin manner | open | [
"# With `datasets.Dataset`\n\nHere is an small script that shows the distribution differences of samples between `interleave_datasets`, `concatenate_datasets` and `concatenate_datasets` + shuffling.\n\n```python\nimport datasets as hf_datasets\n\ndef gen(dataset: int, n_samples: int):\n for i in range(n_samples)... | 2025-09-26T10:05:19 | 2025-10-03T12:25:19 | null | ### Feature request
I would like to be able to concatenate multiple `IterableDataset` with possibly different features. I would like to then be able to stream the results in parallel (both using DDP and multiple workers in the pytorch DataLoader). I want the merge of datasets to be well balanced between the different ... | LTMeyer | https://github.com/huggingface/datasets/issues/7792 | null | false |
3,454,046,306 | 7,791 | fix: add `num_proc` argument to `Dataset.to_sql` | open | [] | 2025-09-25T15:02:46 | 2025-09-25T15:03:18 | null | **Task Done:**
- Resolve issue #7788 : Add the missing argument mapping in Dataset.to_sql (`src/datasets/arrow_dataset.py`)
| EricSaikali | https://github.com/huggingface/datasets/pull/7791 | {
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"patch_url": "https://github.com/huggingface/datasets/pull/7791.patch",
"merged_at": null
} | true |
3,453,679,876 | 7,790 | update tips in docs | closed | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7790). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"cc @mishig25"
] | 2025-09-25T13:36:02 | 2025-09-25T13:39:28 | 2025-09-25T13:39:22 | null | lhoestq | https://github.com/huggingface/datasets/pull/7790 | {
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"merged_at": "2025-09-25T13:39... | true |
3,453,273,059 | 7,789 | fix link for rotten_tomatoes dataset | open | [] | 2025-09-25T11:51:36 | 2025-09-25T11:51:36 | null | The current link leads to a 404 page. | 0xmohit | https://github.com/huggingface/datasets/pull/7789 | {
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"patch_url": "https://github.com/huggingface/datasets/pull/7789.patch",
"merged_at": null
} | true |
3,450,913,796 | 7,788 | `Dataset.to_sql` doesn't utilize `num_proc` | open | [] | 2025-09-24T20:34:47 | 2025-09-24T20:35:01 | null | The underlying `SqlDatasetWriter` has `num_proc` as an available argument [here](https://github.com/huggingface/datasets/blob/5dc1a179783dff868b0547c8486268cfaea1ea1f/src/datasets/io/sql.py#L63) , but `Dataset.to_sql()` does not accept it, therefore it is always using one process for the SQL conversion. | tcsmaster | https://github.com/huggingface/datasets/issues/7788 | null | false |
3,450,858,674 | 7,787 | feat: avoid some copies in torch formatter | closed | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7787). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"can you re-read your PR please ?"
] | 2025-09-24T20:19:44 | 2025-09-26T15:04:25 | 2025-09-26T15:04:23 | ## perf: reduce copies in TorchFormatter
This PR make changes the torch formatter to avoid unnecessary copies and casts when converting decoded batches to tensors.
Because many arrays are already in a torch-friendly memory layout and dtype, we can do zero‑copy conversions (`torch.from_numpy`) and only fall back t... | drbh | https://github.com/huggingface/datasets/pull/7787 | {
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"merged_at": "2025-09-26T15:04... | true |
3,448,506,148 | 7,786 | Sample without replacement option when interleaving datasets | open | [
"@lhoestq Continuing on the idea from https://github.com/huggingface/datasets/issues/217 \r\nThis doesn't add a new stopping criteria, but a new argument to interleave_datasets method. Let me know what you think and if you see a better way of doing this I'm open to suggestions.",
"Great ! this is a cool additions... | 2025-09-24T09:18:14 | 2025-10-03T08:54:10 | null | Right now, `interleave_datasets` function with probabilities will sample with replacement. The PR adds the ability to sample without replacement.
```
import datasets
# Create datasets of different sizes to test exhaustion
data_a = [{"value": i, "source": "A"} for i in range(5)]
data_b = [{"value": i, "source":... | radulescupetru | https://github.com/huggingface/datasets/pull/7786 | {
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"merged_at": null
} | true |
3,439,897,018 | 7,785 | Fix Audio docstring by removing unsupported mono argument | open | [
"I think we can keep the arg and add the missing torch.mean() in the Audio.decode_example method",
"> I think we can keep the arg and add the missing torch.mean() in the Audio.decode_example method\r\n\r\nThank you @lhoestq. I will add torch.mean()."
] | 2025-09-22T09:06:52 | 2025-09-23T09:57:37 | null | This PR fixes issue #7745.
Who can review:
@lhoestq | tanuj-rai | https://github.com/huggingface/datasets/pull/7785 | {
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"merged_at": null
} | true |
3,430,715,779 | 7,783 | Support huggingface_hub v0.x and v1.x | closed | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7783). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"@lhoestq could you have a look at this PR please? It makes `datasets` compatible with t... | 2025-09-18T14:45:20 | 2025-10-01T13:56:05 | 2025-10-01T13:56:03 | Related to https://github.com/huggingface/huggingface_hub/issues/3340.
This PR adapts `datasets` to be compatible with both huggingface_hub v0.x and v1.x.
In practice nothing else should change (I've checked the codebase). The `HfHubHTTPError` is a base error defined in `huggingface_hub` that inherits from `requ... | Wauplin | https://github.com/huggingface/datasets/pull/7783 | {
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"merged_at": "2025-10-01T13:56... | true |
3,430,341,875 | 7,782 | set dev version | closed | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7782). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-09-18T13:15:56 | 2025-09-18T13:20:03 | 2025-09-18T13:16:04 | null | lhoestq | https://github.com/huggingface/datasets/pull/7782 | {
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"patch_url": "https://github.com/huggingface/datasets/pull/7782.patch",
"merged_at": "2025-09-18T13:16... | true |
3,430,332,841 | 7,781 | release: 4.1.1 | closed | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7781). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-09-18T13:13:47 | 2025-09-18T13:16:48 | 2025-09-18T13:14:47 | null | lhoestq | https://github.com/huggingface/datasets/pull/7781 | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7781",
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"merged_at": "2025-09-18T13:14... | true |
3,429,267,259 | 7,780 | BIGPATENT dataset inaccessible (deprecated script loader) | closed | [
"Hi ! I opened https://huggingface.co/datasets/NortheasternUniversity/big_patent/discussions/7 to update the dataset, hopefully it's merged soon !",
"The dataset now works with `datasets` v4 ! closing this issue"
] | 2025-09-18T08:25:34 | 2025-09-25T14:36:13 | 2025-09-25T14:36:13 | dataset: https://huggingface.co/datasets/NortheasternUniversity/big_patent
When I try to load it with the datasets library, it fails with:
RuntimeError: Dataset scripts are no longer supported, but found big_patent.py
Could you please publish a Parquet/Arrow export of BIGPATENT on the Hugging Face so that it can be... | ishmaifan | https://github.com/huggingface/datasets/issues/7780 | null | false |
3,427,108,011 | 7,779 | fix empty dataset to_parquet | closed | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7779). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-09-17T17:03:56 | 2025-09-17T17:07:35 | 2025-09-17T17:04:32 | null | lhoestq | https://github.com/huggingface/datasets/pull/7779 | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7779",
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"patch_url": "https://github.com/huggingface/datasets/pull/7779.patch",
"merged_at": "2025-09-17T17:04... | true |
3,425,917,119 | 7,778 | [FIX] force spawning pool for MacOS | open | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7778). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"After more discussions on slack, we can switch the default to spawn.\r\n\r\nLet's use m... | 2025-09-17T11:38:38 | 2025-09-18T17:04:45 | null | This PR gets multiprocessing to work on mac os:
```python
from datasets import load_dataset
ds = load_dataset("fka/awesome-chatgpt-prompts", split="train").take(100)
ds = ds.map(lambda x: x, num_proc=4)
ds.push_to_hub("burtenshaw/dataset-test", num_proc=4)
``` | burtenshaw | https://github.com/huggingface/datasets/pull/7778 | {
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"merged_at": null
} | true |
3,424,462,082 | 7,777 | push_to_hub not overwriting but stuck in a loop when there are existing commits | closed | [
"HTTP 412 means a commit happened in the meantime, so `get_deletions_and_dataset_card` has to retry to get the latest version of the dataset card and what files to delete based on the latest version of the dataset repository\n\nAre you running other operations in the dataset repo for your push_to_hub ?",
"There w... | 2025-09-17T03:15:35 | 2025-09-17T19:31:14 | 2025-09-17T19:31:14 | ### Describe the bug
`get_deletions_and_dataset_card` stuck at error a commit has happened error since push to hub for http error 412 for tag 4.1.0. The error does not exists in 4.0.0.
### Steps to reproduce the bug
Create code to use push_to_hub, ran twice each time with different content for datasets.Dataset.
The... | Darejkal | https://github.com/huggingface/datasets/issues/7777 | null | false |
3,420,364,069 | 7,776 | [docs] Fix broken WebDataset link on “Create a video dataset” page | closed | [] | 2025-09-16T04:49:32 | 2025-09-27T12:03:49 | 2025-09-27T12:03:49 | ### What
Fix the "WebDataset documentation" link on the Create a video dataset page to point
to the correct section on the video load guide.
### Why
The link currently points to an external repo, but the Hugging Face docs
have an internal "WebDataset" section under video_load.
### How
- docs/source/video_dat... | Username46786 | https://github.com/huggingface/datasets/pull/7776 | {
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"patch_url": "https://github.com/huggingface/datasets/pull/7776.patch",
"merged_at": null
} | true |
3,418,859,494 | 7,775 | fix iterate nested field | closed | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7775). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-09-15T17:28:34 | 2025-09-15T17:31:14 | 2025-09-15T17:28:42 | null | lhoestq | https://github.com/huggingface/datasets/pull/7775 | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7775",
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"patch_url": "https://github.com/huggingface/datasets/pull/7775.patch",
"merged_at": "2025-09-15T17:28... | true |
3,418,712,977 | 7,774 | Set dev version | closed | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7774). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-09-15T16:42:33 | 2025-09-15T16:45:16 | 2025-09-15T16:42:47 | null | lhoestq | https://github.com/huggingface/datasets/pull/7774 | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7774",
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"merged_at": "2025-09-15T16:42... | true |
3,418,672,306 | 7,773 | Release: 4.1.0 | closed | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7773). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-09-15T16:30:37 | 2025-09-15T16:33:40 | 2025-09-15T16:33:39 | null | lhoestq | https://github.com/huggingface/datasets/pull/7773 | {
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"merged_at": "2025-09-15T16:33... | true |
3,417,353,751 | 7,772 | Error processing scalar columns using tensorflow. | open | [
"Using tf.convert_to_tensor works fine:\n\n```\nimport tensorflow as tf\n\nstart_pos = tf.convert_to_tensor(train_ds['start_positions'], dtype=tf.int64)\nstart_pos = tf.reshape(start_pos, [-1, 1])\n```\n\n\nAlternatively, using the built-in to_tf_dataset also avoids the issue:\n\n```\ntrain_tf = train_ds.to_tf_data... | 2025-09-15T10:36:31 | 2025-09-27T08:22:44 | null | `datasets==4.0.0`
```
columns_to_return = ['input_ids','attention_mask', 'start_positions', 'end_positions']
train_ds.set_format(type='tf', columns=columns_to_return)
```
`train_ds`:
```
train_ds type: <class 'datasets.arrow_dataset.Dataset'>, shape: (1000, 9)
columns: ['question', 'sentences', 'answer', 'str_idx', 'en... | khteh | https://github.com/huggingface/datasets/issues/7772 | null | false |
3,414,655,424 | 7,771 | Add support for arrow iterable when concatenating or interleaving | closed | [
"Seeing the following numbers on the script shared in the original issue. (MacBook Pro M4)\r\n\r\n```\r\n1000it [00:00, 4074.63it/s] # ds_a.with_format(\"torch\")\r\n1000it [00:01, 593.39it/s] # ds_a.shuffle()\r\n1999it [00:03, 594.09it/s] # datasets.interleave_datasets([ds_a, ds_b])\r\n1000it [00:00, 5382.45it/s] ... | 2025-09-14T06:40:50 | 2025-09-17T16:51:28 | 2025-09-17T16:51:28 | Fixes a case when concatenating or interleaving datasets with `with_format(...)` call was slower.
Details here: https://github.com/huggingface/datasets/issues/6637
@lhoestq I tried to minimize the duplication between iter and iter_arrow methods, not sure if this is against the design, can separate those if needed. | radulescupetru | https://github.com/huggingface/datasets/pull/7771 | {
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"merged_at": "2025-09-17T16:51... | true |
3,413,892,226 | 7,770 | Fix: Correct float feature generation in `generate_examples` | open | [
"Hi @lhoestq, just a gentle follow-up on this PR."
] | 2025-09-13T17:37:09 | 2025-09-28T12:43:04 | null | This PR fixes a bug in the `generate_examples` function where `datasets.Value` features with a `float` dtype were incorrectly generated using `np.random.randint`. This resulted in integer values being cast to float, which is not representative of true floating-point data.
**Key changes include:**
* Added explic... | Sanjaykumar030 | https://github.com/huggingface/datasets/pull/7770 | {
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} | true |
3,413,868,583 | 7,769 | Fix: Correct float feature generation in `generate_examples` | closed | [] | 2025-09-13T17:19:36 | 2025-09-13T17:30:15 | 2025-09-13T17:30:15 | This PR fixes a bug in the `generate_examples` function where `datasets.Value` features with a `float` dtype were incorrectly generated using `np.random.randint`. This resulted in integer values being cast to float, which is not representative of true floating-point data.
**Key changes include:**
1. Added explicit... | Sanjaykumar030 | https://github.com/huggingface/datasets/pull/7769 | {
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3,413,755,917 | 7,768 | Custom `dl_manager` in `load_dataset` | open | [] | 2025-09-13T16:09:45 | 2025-09-13T16:09:45 | null | Fix #7767 | ain-soph | https://github.com/huggingface/datasets/pull/7768 | {
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3,411,654,444 | 7,767 | Custom `dl_manager` in `load_dataset` | open | [] | 2025-09-12T19:06:23 | 2025-09-12T19:07:52 | null | ### Feature request
https://github.com/huggingface/datasets/blob/4.0.0/src/datasets/load.py#L1411-L1418
```
def load_dataset(
...
dl_manager: Optional[DownloadManager] = None, # add this new argument
**config_kwargs,
) -> Union[DatasetDict, Dataset, IterableDatasetDict, IterableDataset]:
...
# ... | ain-soph | https://github.com/huggingface/datasets/issues/7767 | null | false |
3,411,611,165 | 7,766 | cast columns to Image/Audio/Video with `storage_options` | open | [
"A",
"1",
"1",
"Ok",
"> ### Feature request\n> Allow `storage_options` to be passed in\n> \n> 1. `cast` related operations (e.g., `cast_columns, cast`)\n> 2. `info` related reading (e.g., `from_dict, from_pandas, from_polars`) together with `info.features`\n> \n> import datasets\n> \n> image_path = \"s3://b... | 2025-09-12T18:51:01 | 2025-09-27T08:14:47 | null | ### Feature request
Allow `storage_options` to be passed in
1. `cast` related operations (e.g., `cast_columns, cast`)
2. `info` related reading (e.g., `from_dict, from_pandas, from_polars`) together with `info.features`
```python3
import datasets
image_path = "s3://bucket/sample.png"
dataset = datasets.Dataset.from_d... | ain-soph | https://github.com/huggingface/datasets/issues/7766 | null | false |
3,411,556,378 | 7,765 | polars dataset cannot cast column to Image/Audio/Video | open | [
"I fixed this with a combination of `to_dict` and `from_dict`:\n\n```py\ndatasets.Dataset.from_dict(df.to_dict(as_series=False))\n```",
"@samuelstevens Yeah, I'm using similar workaround as well. But it would be ideal if we can avoid the copy."
] | 2025-09-12T18:32:49 | 2025-09-16T01:33:31 | null | ### Describe the bug
`from_polars` dataset cannot cast column to Image/Audio/Video, while it works on `from_pandas` and `from_dict`
### Steps to reproduce the bug
```python3
import datasets
import pandas as pd
import polars as pl
image_path = "./sample.png"
# polars
df = pl.DataFrame({"image_path": [image_path]})
... | ain-soph | https://github.com/huggingface/datasets/issues/7765 | null | false |
3,410,722,819 | 7,764 | update torchcodec in ci | closed | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7764). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-09-12T14:26:42 | 2025-09-12T15:56:16 | 2025-09-12T15:56:14 | before the release, to make sure everything works fine | lhoestq | https://github.com/huggingface/datasets/pull/7764 | {
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3,407,833,429 | 7,763 | Bump dill to 0.4.0 | closed | [
"Have you tried to run `pytest tests/test_fingerprint.py` ? It seems dill 0.3.9 breaks a lot of tests\r\n\r\n```\r\nFAILED tests/test_fingerprint.py::TokenizersHashTest::test_hash_regex - NameError: name 'log' is not defined\r\nFAILED tests/test_fingerprint.py::TokenizersHashTest::test_hash_tokenizer - NameError: n... | 2025-09-11T19:43:16 | 2025-09-15T08:37:48 | 2025-09-15T08:37:48 | This bumps `dill` to 0.3.9 and closes #7510
It turns out the only thing required to make the tests pass was to extend the version checks to include 0.3.9. | Bomme | https://github.com/huggingface/datasets/pull/7763 | {
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"merged_at": "2025-09-15T08:37... | true |
3,406,885,775 | 7,762 | Parquet: use data page v2 for efficient page pruning | closed | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7762). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"Closing this since it looks like the page offset index is enough :)"
] | 2025-09-11T14:42:22 | 2025-09-11T15:24:25 | 2025-09-11T15:24:24 | This is needed to enable page pruning with DataFusion, which will be useful for the Dataset Viewer.
Indeed page pruning with DataFusion allows to download only certain pages of a row group, reducing the I/O required to read just a few rows.
But while data page v1 generally works, it's not easy with DataFusion to ... | lhoestq | https://github.com/huggingface/datasets/pull/7762 | {
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3,402,787,999 | 7,761 | Audio: use TorchCodec instead of Soundfile for encoding | closed | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7761). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-09-10T14:47:07 | 2025-09-10T15:09:36 | 2025-09-10T15:09:35 | this removes the dependency on Soundfile completely | lhoestq | https://github.com/huggingface/datasets/pull/7761 | {
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"merged_at": "2025-09-10T15:09... | true |
3,401,799,485 | 7,760 | Hugging Face Hub Dataset Upload CAS Error | open | [
"cc @jsulz maybe ?",
"Curious! I took a look at this and was unable to see why this would be occurring on our side. Tagging in @jgodlew and @bpronan since they might have insights. \n\n@n-bkoe just a few questions if you wouldn't mind: \n1. What kind of data are you uploading and what is the difference in file si... | 2025-09-10T10:01:19 | 2025-09-16T20:01:36 | null | ### Describe the bug
Experiencing persistent 401 Unauthorized errors when attempting to upload datasets to Hugging Face Hub using the `datasets` library. The error occurs specifically with the CAS (Content Addressable Storage) service during the upload process. Tried using HF_HUB_DISABLE_XET=1. It seems to work for sm... | n-bkoe | https://github.com/huggingface/datasets/issues/7760 | null | false |
3,398,099,513 | 7,759 | Comment/feature request: Huggingface 502s from GHA | open | [] | 2025-09-09T11:59:20 | 2025-09-09T13:02:28 | null | This is no longer a pressing issue, but for completeness I am reporting that in August 26th, GET requests to `https://datasets-server.huggingface.co/info\?dataset\=livebench/math` were returning 502s when invoked from [github actions](https://github.com/UKGovernmentBEIS/inspect_evals/actions/runs/17241892475/job/489211... | Scott-Simmons | https://github.com/huggingface/datasets/issues/7759 | null | false |
3,395,590,783 | 7,758 | Option for Anonymous Dataset link | open | [] | 2025-09-08T20:20:10 | 2025-09-08T20:20:10 | null | ### Feature request
Allow for anonymized viewing of datasets. For instance, something similar to [Anonymous GitHub](https://anonymous.4open.science/).
### Motivation
We generally publish our data through Hugging Face. This has worked out very well as it's both our repository and archive (thanks to the DOI feature!).... | egrace479 | https://github.com/huggingface/datasets/issues/7758 | null | false |
3,389,535,011 | 7,757 | Add support for `.conll` file format in datasets | open | [
"That would be cool ! feel free to ping me if I can help reviewing a PR"
] | 2025-09-06T07:25:39 | 2025-09-10T14:22:48 | null | ### Feature request
I’d like to request native support in the Hugging Face datasets library for reading .conll files (CoNLL format). This format is widely used in NLP tasks, especially for Named Entity Recognition (NER), POS tagging, and other token classification problems.
Right now `.conll` datasets need to be manu... | namesarnav | https://github.com/huggingface/datasets/issues/7757 | null | false |
3,387,076,693 | 7,756 | datasets.map(f, num_proc=N) hangs with N>1 when run on import | open | [] | 2025-09-05T10:32:01 | 2025-09-05T10:32:01 | null | ### Describe the bug
If you `import` a module that runs `datasets.map(f, num_proc=N)` at the top-level, Python hangs.
### Steps to reproduce the bug
1. Create a file that runs datasets.map at the top-level:
```bash
cat <<EOF > import_me.py
import datasets
the_dataset = datasets.load_dataset("openai/openai_humanev... | arjunguha | https://github.com/huggingface/datasets/issues/7756 | null | false |
3,386,079,181 | 7,755 | Support pathlib.Path for feature input | closed | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7755). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-09-05T02:38:07 | 2025-09-10T15:19:35 | 2025-09-10T15:19:35 | This PR adds support for specifying image, video, audio, and pdf features using `pathlib.Path`. | Joshua-Chin | https://github.com/huggingface/datasets/pull/7755 | {
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"merged_at": "2025-09-10T15:19... | true |
3,384,883,008 | 7,754 | Add columns support to JSON loader | open | [] | 2025-09-04T18:21:26 | 2025-09-04T18:21:26 | null | New fix to #7594
This PR adds support for the columns argument in the JSON dataset builder.
Added columns parameter to JsonConfig.
Applied column filtering after table creation, filling missing columns with None.
Extended tests to cover:
- Selecting a subset of columns
- Handling missing requested columns
- Co... | ArjunJagdale | https://github.com/huggingface/datasets/pull/7754 | {
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3,381,831,487 | 7,753 | datasets massively slows data reads, even in memory | open | [
"Hi ! you should try\n\n```python\nfrom datasets import Array3D, Dataset, Features, Value\n\nfeatures = Features({\"image\": Array3D(shape=(3, 224, 224), dtype=\"uint8\"), \"label\": Value(\"uint8\")})\nhf_dataset = Dataset.from_dict({'image': images, 'label':labels}, features=features)\n```\n\notherwise the type o... | 2025-09-04T01:45:24 | 2025-09-18T22:08:51 | null | ### Describe the bug
Loading image data in a huggingface dataset results in very slow read speeds, approximately 1000 times longer than reading the same data from a pytorch dataset. This applies even when the dataset is loaded into RAM using a `keep_in_memory=True` flag.
The following script reproduces the result wit... | lrast | https://github.com/huggingface/datasets/issues/7753 | null | false |
3,358,374,882 | 7,752 | Fix: Update Dill Version in Setup py | open | [
"https://github.com/huggingface/datasets/issues/7751",
"same as https://github.com/huggingface/datasets/pull/7763: some tests need to be fixed to support 0.4.0"
] | 2025-08-27T07:39:51 | 2025-09-12T13:21:30 | null | Currently the DIll version is less than 3.9 and now major libraries like Multiprocess, gepa requires Dill version as 0.4.0 and this is making a conflict in installation. So added this small PR to update the DIll. | Navanit-git | https://github.com/huggingface/datasets/pull/7752 | {
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3,358,369,976 | 7,751 | Dill version update | open | [
"#7752 ",
"related: #7510 "
] | 2025-08-27T07:38:30 | 2025-09-10T14:24:02 | null | ### Describe the bug
Why the datasets is not updating the dill ?
Just want to know if I update the dill version in dill what will be the repucssion.
For now in multiplaces I have to update the library like process requirequire dill 0.4.0 so why not datasets.
Adding a pr too.
### Steps to reproduce the bug
.
###... | Navanit-git | https://github.com/huggingface/datasets/issues/7751 | null | false |
3,357,275,291 | 7,750 | Refactor: use unpacking in load.py for time and memory improvement | open | [] | 2025-08-26T22:13:11 | 2025-08-26T22:13:11 | null | In `src/datasets/load.py`, we can use unpacking rather than concatenating two lists for improved time and memory performance. It’s a small improvement in absolute terms, but a consistent and measurable one:
```diff
- ALL_ALLOWED_EXTENSIONS = list(_EXTENSION_TO_MODULE.keys()) + [".zip"]
+ ALL_ALLOWED_EXTENSIONS = [... | brchristian | https://github.com/huggingface/datasets/pull/7750 | {
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3,356,567,923 | 7,749 | Fix typo in error message for cache directory deletion | closed | [] | 2025-08-26T17:47:22 | 2025-09-12T15:43:08 | 2025-09-12T13:22:18 | This PR fixes a small typo in an error message in `src/datasets/fingerprint.py`:
https://github.com/huggingface/datasets/blob/910fab20606893f69b4fccac5fcc883dddf5a14d/src/datasets/fingerprint.py#L63
```diff
- occured
+ occurred
``` | brchristian | https://github.com/huggingface/datasets/pull/7749 | {
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"merged_at": "2025-09-12T13:22... | true |
3,347,137,663 | 7,748 | docs: Streaming best practices | open | [] | 2025-08-23T00:18:43 | 2025-09-07T02:33:36 | null | Add a new 'Streaming best practices' page with practical patterns and pitfalls for large-scale/production use of IterableDataset. Includes examples for batched map with remove_columns, deterministic shuffling with set_epoch, multi-worker sharding, checkpoint/resume, and persistence to Parquet/Hub. Linked from How-to > ... | Abdul-Omira | https://github.com/huggingface/datasets/pull/7748 | {
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"merged_at": null
} | true |
3,347,098,038 | 7,747 | Add wikipedia-2023-redirects dataset | open | [
"you should host this dataset on HF with `ds.push_to_hub()` ! we stopped using dataset scripts some time ago"
] | 2025-08-22T23:49:53 | 2025-09-12T13:23:34 | null | Title: Add wikipedia-2023-redirects dataset (redirect resolution + pageviews)
Summary
- New dataset loader: wikipedia_2023_redirects
- Canonical Wikipedia pages enriched with:
- redirects (aliases pointing to the page)
- 2023 pageviews (aggregated)
- Streaming support; robust parsing; license notes included
- Test... | Abdul-Omira | https://github.com/huggingface/datasets/pull/7747 | {
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3,345,391,211 | 7,746 | Fix: Canonical 'multi_news' dataset is broken and should be updated to a Parquet version | open | [
"@sayakpaul @a-r-r-o-w could you verify this issue then i can contribute to solve this issue!😊"
] | 2025-08-22T12:52:03 | 2025-08-27T20:23:35 | null | Hi,
The canonical `multi_news` dataset is currently broken and fails to load. This is because it points to the [alexfabri/multi_news](https://huggingface.co/datasets/alexfabbri/multi_news) repository, which contains a legacy loading script (`multi_news.py`) that requires the now-removed `trust_remote_code` parameter.... | Awesome075 | https://github.com/huggingface/datasets/issues/7746 | null | false |
3,345,286,773 | 7,745 | Audio mono argument no longer supported, despite class documentation | open | [
"I want to solve this problem can you please assign it to me\nand also can you please guide whether the mono parameter is required to be re-added or the documentation needs an update?"
] | 2025-08-22T12:15:41 | 2025-08-24T18:22:41 | null | ### Describe the bug
Either update the documentation, or re-introduce the flag (and corresponding logic to convert the audio to mono)
### Steps to reproduce the bug
Audio(sampling_rate=16000, mono=True) raises the error
TypeError: Audio.__init__() got an unexpected keyword argument 'mono'
However, in the class doc... | jheitz | https://github.com/huggingface/datasets/issues/7745 | null | false |
3,343,510,686 | 7,744 | dtype: ClassLabel is not parsed correctly in `features.py` | closed | [
"I think it's \"class_label\"",
"> I think it's \"class_label\"\n\nI see -- thank you. This works\n\n```yaml\nlicense: mit\nlanguage:\n- en\ntags:\n- genomics\n- yeast\n- transcription\n- perturbation\n- response\n- overexpression\npretty_name: Hackett, 2020 Overexpression\nsize_categories:\n- 1M<n<10M\ndataset_i... | 2025-08-21T23:28:50 | 2025-09-10T15:23:41 | 2025-09-10T15:23:41 | `dtype: ClassLabel` in the README.md yaml metadata is parsed incorrectly and causes the data viewer to fail.
This yaml in my metadata ([source](https://huggingface.co/datasets/BrentLab/yeast_genome_resources/blob/main/README.md), though i changed `ClassLabel` to `string` to using different dtype in order to avoid the ... | cmatKhan | https://github.com/huggingface/datasets/issues/7744 | null | false |
3,342,611,297 | 7,743 | Refactor HDF5 and preserve tree structure | closed | [
"@lhoestq this is ready for you now!",
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7743). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-08-21T17:28:17 | 2025-08-26T15:28:05 | 2025-08-26T15:28:05 | Closes #7741. Followup to #7690
- Recursive parsing and feature inference, to preserve the tree structure of the file. Note this means we now visit all links in the file. It also means we have to call` combine_chunks` on any large non-root datasets.
- Support for `complex64` (two `float32`s, used to be converted to... | klamike | https://github.com/huggingface/datasets/pull/7743 | {
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3,336,704,928 | 7,742 | module 'pyarrow' has no attribute 'PyExtensionType' | open | [
"Just checked out the files and thishad already been addressed",
"For others who find this issue: \n\n`pip install --upgrade \"datasets>=2.20.0\"` \n\nfrom https://github.com/explodinggradients/ragas/issues/2170#issuecomment-3204393672 can fix it."
] | 2025-08-20T06:14:33 | 2025-09-09T02:51:46 | null | ### Describe the bug
When importing certain libraries, users will encounter the following error which can be traced back to the datasets library.
module 'pyarrow' has no attribute 'PyExtensionType'.
Example issue: https://github.com/explodinggradients/ragas/issues/2170
The issue occurs due to the following. I will ... | mnedelko | https://github.com/huggingface/datasets/issues/7742 | null | false |
3,334,848,656 | 7,741 | Preserve tree structure when loading HDF5 | closed | [] | 2025-08-19T15:42:05 | 2025-08-26T15:28:06 | 2025-08-26T15:28:06 | ### Feature request
https://github.com/huggingface/datasets/pull/7740#discussion_r2285605374
### Motivation
`datasets` has the `Features` class for representing nested features. HDF5 files have groups of datasets which are nested, though in #7690 the keys are flattened. We should preserve that structure for the user... | klamike | https://github.com/huggingface/datasets/issues/7741 | null | false |
3,334,693,293 | 7,740 | Document HDF5 support | closed | [
"@lhoestq any guidance on what else to add/feedback on what is there now? It seems a bit minimal, but I don't think it's worth doing an entire page on HDF5?"
] | 2025-08-19T14:53:04 | 2025-09-24T14:51:11 | 2025-09-24T14:51:11 | I think these are at least the main places where we should put content. Ideally it is not just repeated in the final version
ref #7690
- [x] Wait for #7743 to land | klamike | https://github.com/huggingface/datasets/pull/7740 | {
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3,331,537,762 | 7,739 | Replacement of "Sequence" feature with "List" breaks backward compatibility | open | [
"Backward compatibility here means 4.0.0 can load datasets saved with older versions.\n\nYou will need 4.0.0 to load datasets saved with 4.0.0"
] | 2025-08-18T17:28:38 | 2025-09-10T14:17:50 | null | PR #7634 replaced the Sequence feature with List in 4.0.0, so datasets saved with version 4.0.0 with that feature cannot be loaded by earlier versions. There is no clear option in 4.0.0 to use the legacy feature type to preserve backward compatibility.
Why is this a problem? I have a complex preprocessing and training... | evmaki | https://github.com/huggingface/datasets/issues/7739 | null | false |
3,328,948,690 | 7,738 | Allow saving multi-dimensional ndarray with dynamic shapes | open | [
"I agree this would be super valuable.\n\nIt looks like this was discussed a few years ago in https://github.com/huggingface/datasets/issues/5272#issuecomment-1550200824 but there were some issues. Those PRs are merged now and it looks like Arrow [officially supports](https://arrow.apache.org/docs/format/CanonicalE... | 2025-08-18T02:23:51 | 2025-08-26T15:25:02 | null | ### Feature request
I propose adding a dedicated feature to the datasets library that allows for the efficient storage and retrieval of multi-dimensional ndarray with dynamic shapes. Similar to how Image columns handle variable-sized images, this feature would provide a structured way to store array data where the dim... | ryan-minato | https://github.com/huggingface/datasets/issues/7738 | null | false |
3,318,670,801 | 7,737 | docs: Add column overwrite example to batch mapping guide | closed | [
"Hi @lhoestq, just a gentle follow-up on this PR."
] | 2025-08-13T14:20:19 | 2025-09-04T11:11:37 | 2025-09-04T11:11:37 | This PR adds a complementary example showing the **column-overwriting** pattern, which is both more direct and more flexible for many transformations.
### Proposed Change
The original `remove_columns` example remains untouched. Below it, this PR introduces an alternative approach that overwrites an existing colum... | Sanjaykumar030 | https://github.com/huggingface/datasets/pull/7737 | {
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"merged_at": "2025-09-04T11:11... | true |
3,311,618,096 | 7,736 | Fix type hint `train_test_split` | closed | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7736). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-08-11T20:46:53 | 2025-08-13T13:13:50 | 2025-08-13T13:13:48 | null | qgallouedec | https://github.com/huggingface/datasets/pull/7736 | {
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3,310,514,828 | 7,735 | fix largelist repr | closed | [
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7735). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-08-11T15:17:42 | 2025-08-11T15:39:56 | 2025-08-11T15:39:54 | null | lhoestq | https://github.com/huggingface/datasets/pull/7735 | {
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"merged_at": "2025-08-11T15:39... | true |
3,306,519,239 | 7,734 | Fixing __getitem__ of datasets which behaves inconsistent to documentation when setting _format_type to None | closed | [
"this breaking change is actually expected, happy to help with a fix in sentencetransformers to account for this",
"Thank you for the context. I thought this was a mismatch do the documentation. Good to know it was intentional. No worries, can add a PR to sentence transformers."
] | 2025-08-09T15:52:54 | 2025-08-17T07:23:00 | 2025-08-17T07:23:00 | Setting _format_type to None, should return plain python object but as of 4.0.0 returns Column. This fails in libs such as sentencetransformers (such as in generation of hard negatives) where plain python is expected. | awagen | https://github.com/huggingface/datasets/pull/7734 | {
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3,304,979,299 | 7,733 | Dataset Repo Paths to Locally Stored Images Not Being Appended to Image Path | open | [
"This is the download issues I come into, about ever other time it fails...\n<img width=\"1719\" height=\"1226\" alt=\"Image\" src=\"https://github.com/user-attachments/assets/2e5b4b3e-7c13-4bad-a77c-34b47a932831\" />"
] | 2025-08-08T19:10:58 | 2025-08-12T00:54:58 | null | ### Describe the bug
I’m not sure if this is a bug or a feature and I just don’t fully understand how dataset loading is to work, but it appears there may be a bug with how locally stored Image() are being accessed. I’ve uploaded a new dataset to hugging face (rmdig/rocky_mountain_snowpack) but I’ve come into a ton of... | dennys246 | https://github.com/huggingface/datasets/issues/7733 | null | false |
3,304,673,383 | 7,732 | webdataset: key errors when `field_name` has upper case characters | open | [] | 2025-08-08T16:56:42 | 2025-08-08T16:56:42 | null | ### Describe the bug
When using a webdataset each sample can be a collection of different "fields"
like this:
```
images17/image194.left.jpg
images17/image194.right.jpg
images17/image194.json
images17/image12.left.jpg
images17/image12.right.jpg
images17/image12.json
```
if the field_name contains upper case characte... | YassineYousfi | https://github.com/huggingface/datasets/issues/7732 | null | false |
3,303,637,075 | 7,731 | Add the possibility of a backend for audio decoding | open | [
"is there a work around im stuck",
"never mind just downgraded"
] | 2025-08-08T11:08:56 | 2025-08-20T16:29:33 | null | ### Feature request
Add the possibility of a backend for audio decoding. Before version 4.0.0, soundfile was used, and now torchcodec is used, but the problem is that torchcodec requires ffmpeg, which is problematic to install on the same colab. Therefore, I suggest adding a decoder selection when loading the dataset.... | intexcor | https://github.com/huggingface/datasets/issues/7731 | null | false |
3,301,907,242 | 7,730 | Grammar fix: correct "showed" to "shown" in fingerprint.py | closed | [] | 2025-08-07T21:22:56 | 2025-08-13T18:34:30 | 2025-08-13T13:12:56 | This PR corrects a small grammatical issue in the outputs of fingerprint.py:
```diff
- "This warning is only showed once. Subsequent hashing failures won't be showed."
+ "This warning is only shown once. Subsequent hashing failures won't be shown."
```
| brchristian | https://github.com/huggingface/datasets/pull/7730 | {
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3,300,672,954 | 7,729 | OSError: libcudart.so.11.0: cannot open shared object file: No such file or directory | open | [
"Is this related to the \"datasets\" library? @SaleemMalikAI "
] | 2025-08-07T14:07:23 | 2025-09-24T02:17:15 | null | > Hi is there any solution for that eror i try to install this one
pip install torch==1.12.1+cpu torchaudio==0.12.1+cpu -f https://download.pytorch.org/whl/torch_stable.html
this is working fine but tell me how to install pytorch version that is fit for gpu | SaleemMalikAI | https://github.com/huggingface/datasets/issues/7729 | null | false |
3,298,854,904 | 7,728 | NonMatchingSplitsSizesError and ExpectedMoreSplitsError | open | [
"To load just one shard without errors, you should use data_files directly with split set to \"train\", but don’t specify \"allenai/c4\", since that points to the full dataset with all shards.\n\nInstead, do this:\n```\nfrom datasets import load_dataset\n\n# Load only one shard of C4\ntraindata = load_dataset(\n ... | 2025-08-07T04:04:50 | 2025-10-05T10:24:51 | null | ### Describe the bug
When loading dataset, the info specified by `data_files` did not overwrite the original info.
### Steps to reproduce the bug
```python
from datasets import load_dataset
traindata = load_dataset(
"allenai/c4",
"en",
data_files={"train": "en/c4-train.00000-of-... | efsotr | https://github.com/huggingface/datasets/issues/7728 | null | false |
3,295,718,578 | 7,727 | config paths that start with ./ are not valid as hf:// accessed repos, but are valid when accessed locally | open | [] | 2025-08-06T08:21:37 | 2025-08-06T08:21:37 | null | ### Describe the bug
```
- config_name: some_config
data_files:
- split: train
path:
- images/xyz/*.jpg
```
will correctly download but
```
- config_name: some_config
data_files:
- split: train
path:
- ./images/xyz/*.jpg
```
will error with `FileNotFoundError` due to improper url joining. `loa... | doctorpangloss | https://github.com/huggingface/datasets/issues/7727 | null | false |
3,293,789,832 | 7,726 | fix(webdataset): don't .lower() field_name | closed | [
"fixes: https://github.com/huggingface/datasets/issues/7732",
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7726). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"CI failures are unrelat... | 2025-08-05T16:57:09 | 2025-08-20T16:35:55 | 2025-08-20T16:35:55 | This fixes cases where keys have upper case identifiers | YassineYousfi | https://github.com/huggingface/datasets/pull/7726 | {
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"merged_at": "2025-08-20T16:35... | true |
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