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https://api.github.com/repos/huggingface/datasets/issues/8038 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8038/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8038/comments | https://api.github.com/repos/huggingface/datasets/issues/8038/events | https://github.com/huggingface/datasets/issues/8038 | 4,020,184,168 | I_kwDODunzps7vnyRo | 8,038 | Typo in iterable_dataset.py | {
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} | ### Describe the bug
`streaming=True**kwargs,` should be `streaming=True, **kwargs,`
https://github.com/huggingface/datasets/blob/81027be09d5cd9f06a6d64ef1a8a3e9ebd0f86fd/src/datasets/iterable_dataset.py#L2950
### Steps to reproduce the bug
```
from Datasets import Dataset
IterableDataset.from_csv("file.csv")
```
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https://api.github.com/repos/huggingface/datasets/issues/8037 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8037/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8037/comments | https://api.github.com/repos/huggingface/datasets/issues/8037/events | https://github.com/huggingface/datasets/issues/8037 | 4,008,928,790 | I_kwDODunzps7u82YW | 8,037 | IterableDataset.filter() chaining fails due to features being lost when is_typed=True | {
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} | ### Describe the bug
Chaining multiple .filter() calls on an IterableDataset raises a TypeError: 'NoneType' object is not a mapping on the second .filter() call.
In `IterableDataset.filter()`, the internal `ex_iterable` is wrapped with FormattedExamplesIterable:
```python
ex_iterable = FormattedExamplesIterable(
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https://api.github.com/repos/huggingface/datasets/issues/8036 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8036/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8036/comments | https://api.github.com/repos/huggingface/datasets/issues/8036/events | https://github.com/huggingface/datasets/pull/8036 | 4,006,914,206 | PR_kwDODunzps7HHMKn | 8,036 | follow `cache_dir` in download option when loading datasets | {
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https://api.github.com/repos/huggingface/datasets/issues/8035 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8035/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8035/comments | https://api.github.com/repos/huggingface/datasets/issues/8035/events | https://github.com/huggingface/datasets/pull/8035 | 4,005,673,675 | PR_kwDODunzps7HDPtk | 8,035 | Update links in README to use markdown format | {
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https://api.github.com/repos/huggingface/datasets/issues/8034 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8034/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8034/comments | https://api.github.com/repos/huggingface/datasets/issues/8034/events | https://github.com/huggingface/datasets/issues/8034 | 4,004,188,523 | I_kwDODunzps7uqxFr | 8,034 | [BUG] load_datasets() cannot use the generated Arrow cache correctly | {
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"PYTHONHASHSEED=1 uv run python -c\n \"\nfrom datasets.load import LocalDatasetModuleFactory\nmod = LocalDatasetModuleFactory('/cache/datasets/imagenet-1k')\ndm = mod.get_module()\nprint('Hash:', dm.hash)\n\"\nResolving data files: 100%|█████████| 294/294 [00:00<00:00, 20584.68it/s]\nResolving data files: 100%|████... | 2026-02-28T08:11:23 | 2026-03-03T02:43:07 | null | null | NONE | null | null | {
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} | ### Describe the bug
The datasets library cannot use the generated Arrow cache correctly, seemingly due to a flaw in the internal hash symbol calculation logic.
The following code provides verification.
I am trying to locate the specific code position, and if there are further developments, I will update here.
### S... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8033 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8033/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8033/comments | https://api.github.com/repos/huggingface/datasets/issues/8033/events | https://github.com/huggingface/datasets/pull/8033 | 4,003,917,950 | PR_kwDODunzps7G-QP1 | 8,033 | perf: use deque for async map task/index queues | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8033). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"Friendly ping — CI is green and this is ready for review. Happy to address any feedback... | 2026-02-28T05:07:00 | 2026-02-28T21:32:44 | null | null | NONE | null | null | null | null | ## Problem
`arrow_dataset.py` and `iterable_dataset.py` drain `indices` and `tasks` lists front-to-back via `.pop(0)` during parallel async map operations. With `MAX_NUM_RUNNING_ASYNC_MAP_FUNCTIONS_IN_PARALLEL` items in flight, each `.pop(0)` is **O(n)** making the drain loop **O(n²)**.
## Solution
Switch both `indi... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8032 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8032/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8032/comments | https://api.github.com/repos/huggingface/datasets/issues/8032/events | https://github.com/huggingface/datasets/pull/8032 | 4,003,285,460 | PR_kwDODunzps7G8PQ8 | 8,032 | set dev version | {
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] | 2026-02-27T23:28:21 | 2026-02-27T23:31:20 | 2026-02-27T23:28:27 | null | MEMBER | null | null | null | null | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8031 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8031/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8031/comments | https://api.github.com/repos/huggingface/datasets/issues/8031/events | https://github.com/huggingface/datasets/pull/8031 | 4,003,278,631 | PR_kwDODunzps7G8N4w | 8,031 | release: 4.6.1 | {
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] | 2026-02-27T23:25:42 | 2026-02-27T23:29:21 | 2026-02-27T23:26:09 | null | MEMBER | null | null | null | null | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8030 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8030/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8030/comments | https://api.github.com/repos/huggingface/datasets/issues/8030/events | https://github.com/huggingface/datasets/pull/8030 | 4,003,238,887 | PR_kwDODunzps7G8F4x | 8,030 | Remove tmp file in push to hub | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8030). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-02-27T23:07:52 | 2026-03-02T09:23:47 | 2026-02-27T23:21:02 | null | MEMBER | null | null | null | null | reported in https://github.com/huggingface/datasets/pull/7979#issuecomment-3973374484 | {
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https://api.github.com/repos/huggingface/datasets/issues/8029 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8029/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8029/comments | https://api.github.com/repos/huggingface/datasets/issues/8029/events | https://github.com/huggingface/datasets/issues/8029 | 4,001,742,455 | I_kwDODunzps7uhb53 | 8,029 | `cache_dir` option in `download_config` in `load_dataset` is not respected | {
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"Actually, I used debugger to step into the code of `datasets`, and found `load_dataset` calls into `cached_path`, where it calls into `hf_hub_download` method for `hf://` links:\nhttps://github.com/huggingface/datasets/blob/6e8eaeed4d202b72eff44ba1a9ec5b7d81d2d3e6/src/datasets/utils/file_utils.py#L182-L195\n\nSome... | 2026-02-27T16:05:30 | 2026-02-27T23:34:28 | null | null | NONE | null | null | {
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} | ### Describe the bug
Downloaded files still go to `~/.cache/huggingface/hub/` even if I specified `cache_dir` option in `download_config` in `load_dataset`.
### Steps to reproduce the bug
Run my freshly written script and found that downloaded files did not go where I want.
```python
'''
下载OpenWebText数据集，允许使用代理
'''
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https://api.github.com/repos/huggingface/datasets/issues/8028 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8028/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8028/comments | https://api.github.com/repos/huggingface/datasets/issues/8028/events | https://github.com/huggingface/datasets/pull/8028 | 4,000,313,779 | PR_kwDODunzps7GybfA | 8,028 | Fix torchcodec audio decoding to respect 'num_channels' | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8028). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-02-27T10:28:46 | 2026-02-28T10:46:48 | null | null | NONE | null | null | null | null | Fixes torchcodec audio decoding when `num_channels` is set on `Audio`.
Before this change, `AudioDecoder["array"]` reduced multi-channel audio to mono by averaging channels, so the requested channel behavior was not respected.
With this PR:
- multi-channel decoded arrays are preserved by default;
- mono output ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8027 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8027/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8027/comments | https://api.github.com/repos/huggingface/datasets/issues/8027/events | https://github.com/huggingface/datasets/pull/8027 | 3,997,153,282 | PR_kwDODunzps7GoGjP | 8,027 | Add `Json()` type | {
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] | 2026-02-26T18:38:45 | 2026-02-28T15:34:54 | null | null | MEMBER | null | null | null | null | `Json()` type is needed when some fields don't have fixed types, e.g. "tools" and "tool_calls" types in conversation + tool calling datasets like [dataclaw](https://huggingface.co/datasets?other=dataclaw) datasets. Cc @peteromallet and @woctordho @Nanbeige for viz
Examples of supported tool-calling / dataclaw datase... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8026 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8026/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8026/comments | https://api.github.com/repos/huggingface/datasets/issues/8026/events | https://github.com/huggingface/datasets/pull/8026 | 3,989,139,119 | PR_kwDODunzps7GNnFC | 8,026 | set dev version | {
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https://api.github.com/repos/huggingface/datasets/issues/8025 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8025/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8025/comments | https://api.github.com/repos/huggingface/datasets/issues/8025/events | https://github.com/huggingface/datasets/pull/8025 | 3,989,040,394 | PR_kwDODunzps7GNSUF | 8,025 | release: 4.6.0 | {
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https://api.github.com/repos/huggingface/datasets/issues/8024 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8024/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8024/comments | https://api.github.com/repos/huggingface/datasets/issues/8024/events | https://github.com/huggingface/datasets/pull/8024 | 3,983,877,502 | PR_kwDODunzps7F8QeB | 8,024 | Allow import polars in map() | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8024). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-02-24T13:57:57 | 2026-02-24T14:08:17 | 2026-02-24T14:08:15 | null | MEMBER | null | null | null | null | close https://github.com/huggingface/datasets/issues/7988 | {
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https://api.github.com/repos/huggingface/datasets/issues/8023 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8023/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8023/comments | https://api.github.com/repos/huggingface/datasets/issues/8023/events | https://github.com/huggingface/datasets/pull/8023 | 3,983,829,205 | PR_kwDODunzps7F8GUT | 8,023 | Support empty shard in from_generator | {
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https://api.github.com/repos/huggingface/datasets/issues/8022 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8022/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8022/comments | https://api.github.com/repos/huggingface/datasets/issues/8022/events | https://github.com/huggingface/datasets/pull/8022 | 3,983,057,516 | PR_kwDODunzps7F5eYs | 8,022 | fix: resolve base_path conflict between builder_kwargs and config_kwargs | {
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"gists_url"... | [] | closed | false | [] | null | [] | 2026-02-24T11:13:06 | 2026-02-24T14:01:23 | 2026-02-24T14:01:23 | null | NONE | null | null | null | null | ## What does this PR fix?
This PR fixes a bug where passing `base_path` to `load_dataset_builder()` or `load_dataset()` causes a TypeError because both `builder_kwargs` and `config_kwargs` can contain the same key.
## Problem
When users call:
```python
from datasets import load_dataset
load_dataset("rotten_tomatoes"... | {
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https://api.github.com/repos/huggingface/datasets/issues/8021 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8021/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8021/comments | https://api.github.com/repos/huggingface/datasets/issues/8021/events | https://github.com/huggingface/datasets/pull/8021 | 3,981,426,772 | PR_kwDODunzps7F0FmV | 8,021 | progress bar optional manual control | {
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"Hi @lhoestq ,\r\nCan you please trigger the CI CD pipeline ?",
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8021). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"@lhoestq I have appli... | 2026-02-24T04:22:17 | 2026-03-02T05:08:37 | null | null | CONTRIBUTOR | null | null | null | null | Fix: https://github.com/huggingface/datasets/issues/7939
Summary
The default behavior for the progress bar has been adjusted based on dataset size. It remains enabled for small datasets and is automatically disabled for larger datasets to improve performance. Users retain full control and can explicitly enable or... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8020 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8020/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8020/comments | https://api.github.com/repos/huggingface/datasets/issues/8020/events | https://github.com/huggingface/datasets/pull/8020 | 3,977,114,662 | PR_kwDODunzps7Fl8mj | 8,020 | feat: add return_file_name support to Parquet packaged builder | {
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"gist... | [] | open | false | [] | null | [] | 2026-02-23T09:13:54 | 2026-02-23T09:13:54 | null | null | NONE | null | null | null | null | Part of #5806. Extends the `return_file_name` feature (implemented for JSON in #7948 and CSV in #8019) to the Parquet packaged builder. When `return_file_name=True`, a `file_name` column containing the source file basename is appended to each batch. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8019 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8019/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8019/comments | https://api.github.com/repos/huggingface/datasets/issues/8019/events | https://github.com/huggingface/datasets/pull/8019 | 3,977,073,546 | PR_kwDODunzps7Flz15 | 8,019 | feat: add return_file_name support to CSV packaged builder | {
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"gist... | [] | open | false | [] | null | [] | 2026-02-23T09:02:31 | 2026-02-23T09:02:31 | null | null | NONE | null | null | null | null | ## Summary
- Adds an optional `return_file_name: bool = False` parameter to `CsvConfig`
- When `return_file_name=True`, a `file_name` column is appended to every batch in `_generate_tables`, containing the basename of the source CSV file for each row
- Default is `False`, preserving full backward compatibility
## Mot... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8017 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8017/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8017/comments | https://api.github.com/repos/huggingface/datasets/issues/8017/events | https://github.com/huggingface/datasets/pull/8017 | 3,975,274,092 | PR_kwDODunzps7FgERR | 8,017 | Improve error message for deprecated dataset scripts with migration guidance | {
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"Hi team! I’m just checking in on this PR to see if there is any additional information or documentation I can provide to help with the review process. Thanks for your time!"
] | 2026-02-22T19:31:34 | 2026-02-28T14:24:11 | null | null | NONE | null | null | null | null | Summary
This PR improves the RuntimeError message raised when deprecated local dataset scripts are detected.
Previously, the error message:
"Dataset scripts are no longer supported"
did not provide actionable migration guidance.
Improvements
- Clarifies the new architecture
- Provides explicit migration step... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8016 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8016/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8016/comments | https://api.github.com/repos/huggingface/datasets/issues/8016/events | https://github.com/huggingface/datasets/pull/8016 | 3,974,759,572 | PR_kwDODunzps7FecuC | 8,016 | Remove legacy Sphinx roles from docstrings | {
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Replace all remaining `:obj:`, `:class:`, `:func:`, and `:meth:` Sphinx cross-reference roles with plain backtick references, aligning with the project's current documentation conventions.
**14 files, 71 replacements. No logic changes.**
## Context
As noted in #5324, the codebase had a mix of old Sphinx ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8015 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8015/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8015/comments | https://api.github.com/repos/huggingface/datasets/issues/8015/events | https://github.com/huggingface/datasets/issues/8015 | 3,974,281,900 | I_kwDODunzps7s4rqs | 8,015 | Iterating a streaming dataset correctly in random order | {
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"Hi, reshuffling is actually pretty easy:\n\n```python\n\"\"\" shuffle.py \"\"\"\nfrom datasets import load_dataset\n\nnum_proc = 8 # tweak it here depending on your machine\nseed = 42\nds = load_dataset(\"jackyhate/text-to-image-2M\", num_proc=num_proc)\nds = ds.shuffle(seed=seed)\nds.push_to_hub(\"my-username/te... | 2026-02-22T11:34:06 | 2026-02-26T18:09:27 | null | null | NONE | null | null | {
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} | ### Describe the bug
For training to work properly it is considered good practice in machine learning to sample the dataset randomly (uniformly). I am not sure how the user is expected to do it correctly when the creator of the dataset did a bad job.
https://huggingface.co/docs/hub/datasets-webdataset
```
**Shuffle*... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8014 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8014/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8014/comments | https://api.github.com/repos/huggingface/datasets/issues/8014/events | https://github.com/huggingface/datasets/pull/8014 | 3,972,099,737 | PR_kwDODunzps7FV93G | 8,014 | Speed up local 'get_data_patterns' by avoiding repeated recursive scans | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8014). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"> lgtm ! can you run `make style` to fix the CI before we merge ?\r\n\r\ndone. All good... | 2026-02-21T14:11:40 | 2026-02-25T20:07:50 | null | null | NONE | null | null | null | null | This PR speeds up `get_data_patterns` for local paths.
### Problem
For `load_dataset("imagefolder", data_dir=...)`, `get_data_patterns` was repeatedly scanning the same local directory tree for many split patterns (`train`, `test`, etc.).
With large folders, this became very slow. This has also been reported b... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8013 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8013/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8013/comments | https://api.github.com/repos/huggingface/datasets/issues/8013/events | https://github.com/huggingface/datasets/pull/8013 | 3,964,156,070 | PR_kwDODunzps7E8Ovb | 8,013 | Add space between sentences 'operation.To debug' | {
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The `operation.To` part would actually render as a hyperlink when printed to Slack. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8012 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8012/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8012/comments | https://api.github.com/repos/huggingface/datasets/issues/8012/events | https://github.com/huggingface/datasets/issues/8012 | 3,963,855,875 | I_kwDODunzps7sQ6QD | 8,012 | HC3 dataset fails to load with datasets>=3 due to legacy script (HC3.py) | {
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"This is not a bug. This is intended behaviour. The only ways to resolve this are\n1. use the old `datasets` versions\n2. load the dataset and upload it to your own repo without a script\n3. raise an issue in the dataset and wait for the owner to update it."
] | 2026-02-19T16:27:51 | 2026-02-20T11:58:20 | 2026-02-20T11:58:20 | null | NONE | null | null | {
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} | ### Describe the bug
It looks like the current documentation suggests loading the dataset like this:
`load_dataset("Hello-SimpleAI/HC3", split="train")
`
But with datasets>=3.x, this raises:
RuntimeError: Dataset scripts are no longer supported, but found HC3.py
The dataset loads correctly if we specify the parqu... | {
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https://api.github.com/repos/huggingface/datasets/issues/8011 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8011/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8011/comments | https://api.github.com/repos/huggingface/datasets/issues/8011/events | https://github.com/huggingface/datasets/pull/8011 | 3,963,479,811 | PR_kwDODunzps7E59Pn | 8,011 | fix: condition for file_name feature check | {
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"Hi @lhoestq, have proposed a fix for [#8010](https://github.com/huggingface/datasets/issues/8010)"
] | 2026-02-19T15:12:31 | 2026-02-19T15:29:29 | 2026-02-19T15:29:29 | null | NONE | null | null | null | null | ## Description
Accept `Value("large_string")` in addition to `Value("string")` for the `file_name` (or `*_file_name`) metadata key in folder-based builders (e.g. `audiofolder`).
## Problem
When loading a dataset with `load_dataset("audiofolder", data_dir=...)` and a `metadata.csv` file, the metadata schema is infe... | {
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https://api.github.com/repos/huggingface/datasets/issues/8010 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8010/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8010/comments | https://api.github.com/repos/huggingface/datasets/issues/8010/events | https://github.com/huggingface/datasets/issues/8010 | 3,963,448,558 | I_kwDODunzps7sPWzu | 8,010 | audiofolder / folder-based loader rejects metadata.csv when file_name column is inferred as large_string | {
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"Proposing a PR for this [here](https://github.com/huggingface/datasets/pull/8011)\n\nPS: I didn't find a contributing documentation. Please recommend any changes in issue or PR if any. Thank you!"
] | 2026-02-19T15:06:09 | 2026-02-19T15:29:41 | 2026-02-19T15:29:41 | null | NONE | null | null | {
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} | ### Describe the bug
When loading a dataset with load_dataset("audiofolder", data_dir=...) and a metadata.csv (with a file_name column), loading can fail with:
`ValueError: file_name or *_file_name must be present as dictionary key (with type string) in metadata files`
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https://api.github.com/repos/huggingface/datasets/issues/8009 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8009/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8009/comments | https://api.github.com/repos/huggingface/datasets/issues/8009/events | https://github.com/huggingface/datasets/pull/8009 | 3,958,228,652 | PR_kwDODunzps7Eo7KV | 8,009 | More IterableDataset.from_x methods and docs and polars.Lazyframe support | {
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] | 2026-02-18T14:48:39 | 2026-02-18T15:18:17 | 2026-02-18T15:18:14 | null | MEMBER | null | null | null | null | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8007 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8007/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8007/comments | https://api.github.com/repos/huggingface/datasets/issues/8007/events | https://github.com/huggingface/datasets/issues/8007 | 3,946,695,329 | I_kwDODunzps7rPcqh | 8,007 | Add option for loading audio with video | {
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} | ### Describe the bug
Currently, `torchcodec` don't allow extracting `Audio` from `Video` https://github.com/meta-pytorch/torchcodec/issues/1158, but when I upload videos with audio to hub using `videofolder`, then this is not possible to retrieve audio from it. Probably `VideoDecoder` can be extended with `audio` para... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8006 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8006/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8006/comments | https://api.github.com/repos/huggingface/datasets/issues/8006/events | https://github.com/huggingface/datasets/issues/8006 | 3,944,394,074 | I_kwDODunzps7rGq1a | 8,006 | Regression: from_generator crashes if one generator call returns no results | {
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} | ### Describe the bug
Dataset.from_generator splits any list kwarg to the generator and makes a separate call to the generator for each member of the list even in the num_proc=1 case.
I have a generator that processes a number of files, filtering them and producing examples. It used to be the case that things worked fi... | {
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https://api.github.com/repos/huggingface/datasets/issues/8005 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8005/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8005/comments | https://api.github.com/repos/huggingface/datasets/issues/8005/events | https://github.com/huggingface/datasets/issues/8005 | 3,941,908,297 | I_kwDODunzps7q9L9J | 8,005 | Multi-channel audio is automatically cast to mono, num_channels is ignored | {
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"**Workaround**\nDirectly load audio using torchcodec, this is what datasets does under the hood (but doesn't maintain multi-channel)\n\n```python\nimport torchcodec\n\ndecoder = torchcodec.decoders.AudioDecoder(audio[\"bytes\"])\naudio_samples = decoder.get_all_samples()\n\naudio = audio_samples.data.numpy()\nsamp... | 2026-02-14T17:28:03 | 2026-02-25T15:17:18 | null | null | NONE | null | null | {
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} | ### Describe the bug
The `num_channels` parameter in `datasets.Audio()` is documented to preserve stereo channels when set to `None` (preserve original) or `2` (explicit stereo), but it currently downmixes all audio to mono regardless of this setting.
### Steps to reproduce the bug
```python
import numpy as np
impor... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8004 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8004/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8004/comments | https://api.github.com/repos/huggingface/datasets/issues/8004/events | https://github.com/huggingface/datasets/pull/8004 | 3,939,675,475 | PR_kwDODunzps7DsCBM | 8,004 | fix save_to_disk/load_from_disk with pathlib.Path input | {
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Fixed by converting the path argument with `os.fspath()` before handi... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8003 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8003/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8003/comments | https://api.github.com/repos/huggingface/datasets/issues/8003/events | https://github.com/huggingface/datasets/pull/8003 | 3,938,501,557 | PR_kwDODunzps7DoBmp | 8,003 | very basic support for more hf urls | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_8003). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-02-13T18:30:56 | 2026-02-13T18:47:58 | 2026-02-13T18:47:57 | null | MEMBER | null | null | null | null | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8002 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8002/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8002/comments | https://api.github.com/repos/huggingface/datasets/issues/8002/events | https://github.com/huggingface/datasets/issues/8002 | 3,937,013,814 | I_kwDODunzps7qqhA2 | 8,002 | The `Sequence` class in features do not have "dtype" | {
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} | ### Describe the bug
**I'm not sure if this is a bug.**
I see that a `FeatureType` object contains an attribute called `self.dtype` that is not covered when this feature is a `Sequence` or a `List`.
When I try to run a multilabel classification with this example script from the transformers library:
https://github.... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/8000 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/8000/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/8000/comments | https://api.github.com/repos/huggingface/datasets/issues/8000/events | https://github.com/huggingface/datasets/pull/8000 | 3,919,504,253 | PR_kwDODunzps7CpK9i | 8,000 | Fix: make environment variable naming consistent (issue #7998) | {
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"Hi @lhoestq ,\r\nI’ve addressed the inconsistent environment variable name HF_DATASETS_DISABLE_PROGRESS_BARS in docstrings and warning messages. Please review the changes and let me know if there’s anything else I should update to complete this issue fix."
] | 2026-02-10T05:19:53 | 2026-02-16T15:29:49 | 2026-02-16T15:29:49 | null | CONTRIBUTOR | null | null | null | null | Fix: https://github.com/huggingface/datasets/issues/7998
**Summary**
Addressed the inconsistent environment variable name HF_DATASETS_DISABLE_PROGRESS_BARS used for toggling progress bars, particularly in docstrings and warning messages.
**Changes**
Updated function docstrings to use the correct environment... | {
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https://api.github.com/repos/huggingface/datasets/issues/7999 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7999/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7999/comments | https://api.github.com/repos/huggingface/datasets/issues/7999/events | https://github.com/huggingface/datasets/issues/7999 | 3,915,367,642 | I_kwDODunzps7pX8Ta | 7,999 | Too many dataloader workers: 4 (max is dataset.num_shards=3). Stopping 1 dataloader workers. | {
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"Hi, thanks for the clear question and code snippet!\n\nFrom my understanding, **hf_dataset.num_shards** represents the number of actual iterable partitions that the streaming dataset can be read from in parallel. This is not the same as the number of underlying Parquet files—many files can be grouped into a much s... | 2026-02-09T09:26:37 | 2026-02-15T14:25:56 | null | null | NONE | null | null | {
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} | Hi !
I’m working on training with a large-scale dataset (100+ Parquet files) using lazy loading, and I’m struggling to understand/optimize the num_shards setting— in the lerobot repo: streaming_datasets.py:
```
from datasets import load_dataset
self.hf_dataset: datasets.IterableDataset = load_dataset(
self.... | null | {
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https://github.com/huggingface/datasets/blob/025593f2f0722f31fc136e0ae45da4ff44d4416a/src/datasets/config.py#L221-L226
Docstrings and warnings report env var name `HF_DATASETS_DISABLE_PROGRESS_BAR` without the ending `S`.
https://github.com/huggingface/data... | {
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https://api.github.com/repos/huggingface/datasets/issues/7997 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7997/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7997/comments | https://api.github.com/repos/huggingface/datasets/issues/7997/events | https://github.com/huggingface/datasets/pull/7997 | 3,912,160,109 | PR_kwDODunzps7CRNIl | 7,997 | fix: Dataset.map writer initialization when first examples return None | {
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"Closing in favor of #7996 which addresses the same issue with the same fix."
] | 2026-02-08T07:02:00 | 2026-02-11T08:23:06 | 2026-02-11T08:23:06 | null | NONE | null | null | null | null | Fixes #7990
## Summary
When Dataset.map is called and the first examples processed return None, the writer is never properly initialized, causing a ValueError.
## Changes
- Modified _map_single to initialize the writer early if the first batch returns empty results
- Ensures writer is set before the first call to w... | {
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https://api.github.com/repos/huggingface/datasets/issues/7996 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7996/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7996/comments | https://api.github.com/repos/huggingface/datasets/issues/7996/events | https://github.com/huggingface/datasets/pull/7996 | 3,912,066,322 | PR_kwDODunzps7CQ6GC | 7,996 | Fix Dataset.map writer initialization when early examples return None | {
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"Friendly ping - any chance someone could take a look at this when they get a chance? Happy to make any changes if needed."
] | 2026-02-08T05:52:45 | 2026-02-19T04:58:58 | null | null | NONE | null | null | null | null | ## Summary
Fixes #7990
This PR fixes a bug in `Dataset.map()` where the writer initialization was incorrectly tied to the index being 0, causing crashes when the map function returns `None` for the first few examples and later returns a dict.
### Changes
- **Non-batched mode** (line 3676): Changed from `if i == 0:... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7995 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7995/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7995/comments | https://api.github.com/repos/huggingface/datasets/issues/7995/events | https://github.com/huggingface/datasets/pull/7995 | 3,912,055,867 | PR_kwDODunzps7CQ4C9 | 7,995 | Bump fsspec upper bound to 2026.2.0 (fixes #7994) | {
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"Apologize for the ping @lhoestq but I wanted to know whether this is something you could look into? And more generally whether you have a policy to regularly bump fsspec? Thanks 🙏",
"thanks for opening a PR, I'm triggering the CI and I'll merge if it's all green :)",
"The docs for this PR live [here](https://... | 2026-02-08T05:43:15 | 2026-02-16T15:28:59 | 2026-02-16T15:28:59 | null | CONTRIBUTOR | null | null | null | null | Fixes #7994 and e.g. “Bumps fsspec upper bound so the latest version can be used; CI will validate compatibility.” | {
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} | Would it be possible to bump fsspec upper bound to the latest (2026.2.0)?
I saw you had some API compat issues in the past (https://github.com/huggingface/datasets/issues/7326) and I understand the need for an upper bound.
But I wonder if you think your CI and tests are a good proxy to catch fsspec API breakage? If t... | {
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