url string | repository_url string | labels_url string | comments_url string | events_url string | html_url string | id int64 | node_id string | number int64 | title string | user dict | labels list | state string | locked bool | assignee dict | assignees list | milestone null | comments sequence | created_at timestamp[s] | updated_at timestamp[s] | closed_at timestamp[s] | author_association string | type null | active_lock_reason null | sub_issues_summary dict | body string | closed_by dict | reactions dict | timeline_url string | performed_via_github_app null | state_reason string | draft bool | pull_request dict | is_pull_request bool |
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https://api.github.com/repos/huggingface/datasets/issues/7662 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7662/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7662/comments | https://api.github.com/repos/huggingface/datasets/issues/7662/events | https://github.com/huggingface/datasets/issues/7662 | 3,190,805,531 | I_kwDODunzps6-L9Qb | 7,662 | Applying map after transform with multiprocessing will cause OOM | {
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} | ### Describe the bug
I have a 30TB dataset. When I perform add_column and cast_column operations on it and then execute a multiprocessing map, it results in an OOM (Out of Memory) error. However, if I skip the add_column and cast_column steps and directly run the map, there is no OOM. After debugging step by step, I f... | null | {
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"Deleting a class (**not instance**) attribute might be invalid in this case, which is `tqdm` doing in `ensure_lock`.\n\n```python\nfrom tqdm import tqdm as old_tqdm\n\nclass tqdm1(old_tqdm):\n def __delattr__(self, attr):\n try:\n super().__delattr__(attr)\n except AttributeError:\n ... | 2025-06-30T15:57:16 | 2025-07-01T03:39:01 | null | NONE | null | null | {
"total": 0,
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} | ### Describe the bug
`AttributeError: type object 'tqdm' has no attribute '_lock'`
It occurs when I'm trying to load datasets in thread pool.
Issue https://github.com/huggingface/datasets/issues/6066 and PR https://github.com/huggingface/datasets/pull/6067 https://github.com/huggingface/datasets/pull/6068 tried to f... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7659 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7659/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7659/comments | https://api.github.com/repos/huggingface/datasets/issues/7659/events | https://github.com/huggingface/datasets/pull/7659 | 3,187,882,217 | PR_kwDODunzps6cqkou | 7,659 | Update the beans dataset link in Preprocess | {
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https://api.github.com/repos/huggingface/datasets/issues/7658 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7658/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7658/comments | https://api.github.com/repos/huggingface/datasets/issues/7658/events | https://github.com/huggingface/datasets/pull/7658 | 3,187,800,504 | PR_kwDODunzps6cqTMs | 7,658 | Fix: Prevent loss of info.features and column_names in IterableDatasetDict.map when features is None | {
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"Hi!\r\nI haven’t included a test for this change, as the fix is quite small and targeted.\r\nPlease let me know if you’d like a test for this case or if you’d prefer to handle it during review.\r\nThanks!"
] | 2025-06-30T09:31:12 | 2025-06-30T09:31:34 | null | CONTRIBUTOR | null | null | null | This PR fixes a bug where calling `IterableDatasetDict.map()` or `IterableDataset.map()` with the default `features=None` argument would overwrite the existing `info.features` attribute with `None`. This, in turn, caused the resulting dataset to lose its schema, breaking downstream usage of attributes like `column_name... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7657 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7657/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7657/comments | https://api.github.com/repos/huggingface/datasets/issues/7657/events | https://github.com/huggingface/datasets/pull/7657 | 3,186,036,016 | PR_kwDODunzps6cks2E | 7,657 | feat: add subset_name as alias for name in load_dataset | {
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This PR introduces subset_name as a user-facing alias for the name (previously `config_name`) argument in load_dataset. It aligns terminology with the Hugging Face Hub UI (which shows “Subset”), reducing confusion for new users.
Supports `subset_name` in `load_dataset()`
Adds `.subset_name` propert... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7656 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7656/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7656/comments | https://api.github.com/repos/huggingface/datasets/issues/7656/events | https://github.com/huggingface/datasets/pull/7656 | 3,185,865,686 | PR_kwDODunzps6ckPHc | 7,656 | fix(iterable): ensure MappedExamplesIterable supports state_dict for resume | {
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### Problem
When calling `.map()` on an `IterableDataset`, resuming from a checkpoint skips a large number of samples. This is because `MappedExamplesIterable` did not implement `state_dict()` or `load_state_dict()`, so checkpointing was not properly delegated to the underlying iterable.
### What Thi... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7654 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7654/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7654/comments | https://api.github.com/repos/huggingface/datasets/issues/7654/events | https://github.com/huggingface/datasets/pull/7654 | 3,184,770,992 | PR_kwDODunzps6chPmz | 7,654 | fix(load): strip deprecated use_auth_token from config_kwargs | {
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This PR resolves a compatibility error when loading datasets via `load_dataset()` using outdated arguments like `use_auth_token`.
**What was happening:**
Users passing `use_auth_token` in `load_dataset(..., use_auth_token=...)` encountered a `ValueError`: BuilderConfig ParquetConfig(...) doesn't have... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7653 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7653/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7653/comments | https://api.github.com/repos/huggingface/datasets/issues/7653/events | https://github.com/huggingface/datasets/pull/7653 | 3,184,746,093 | PR_kwDODunzps6chLmb | 7,653 | feat(load): fallback to `load_from_disk()` when loading a saved dataset directory | {
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Fixes #7503
Partially addresses #5044 by allowing `load_dataset()` to auto-detect and gracefully delegate to `load_from_disk()` for locally saved datasets.
---
### What does this PR do?
This PR introduces a minimal fallback mechanism in `load_dataset()` that detects when the provided `p... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7652 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7652/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7652/comments | https://api.github.com/repos/huggingface/datasets/issues/7652/events | https://github.com/huggingface/datasets/pull/7652 | 3,183,372,055 | PR_kwDODunzps6cdCnv | 7,652 | Add columns support to JSON loader for selective key filtering | {
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This PR adds support for filtering specific columns when loading datasets from .json or .jsonl files — similar to how the columns=... argument works for Parquet.
As suggested, support for the `columns=...` argument (previously available for Parquet) has now been extended to **JSON and JSONL** loading v... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7651 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7651/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7651/comments | https://api.github.com/repos/huggingface/datasets/issues/7651/events | https://github.com/huggingface/datasets/pull/7651 | 3,182,792,775 | PR_kwDODunzps6cbMmg | 7,651 | fix: Extended metadata file names for folder_based_builder | {
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The metadata files generated by the `DatasetDict.save_to_file` function are not included in the folder_based_builder's metadata list, causing issues when only 1 actual data file is present, as described in issue #7650.
This PR adds these filenames to the builder, allowing correct loading. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7650 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7650/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7650/comments | https://api.github.com/repos/huggingface/datasets/issues/7650/events | https://github.com/huggingface/datasets/issues/7650 | 3,182,745,315 | I_kwDODunzps69tNbj | 7,650 | `load_dataset` defaults to json file format for datasets with 1 shard | {
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} | ### Describe the bug
I currently have multiple datasets (train+validation) saved as 50MB shards. For one dataset the validation pair is small enough to fit into a single shard and this apparently causes problems when loading the dataset. I created the datasets using a DatasetDict, saved them as 50MB arrow files for st... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7649 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7649/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7649/comments | https://api.github.com/repos/huggingface/datasets/issues/7649/events | https://github.com/huggingface/datasets/pull/7649 | 3,181,481,444 | PR_kwDODunzps6cW0sQ | 7,649 | Enable parallel shard upload in push_to_hub() using num_proc | {
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### Add num_proc support to `push_to_hub()` for parallel shard upload
This PR adds support for parallel upload of dataset shards via the `num_proc` argument in `Dataset.push_to_hub()`.
📌 While the `num_proc` parameter was already present in the `push_to_hub()` signature and correctly passed to `_p... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7648 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7648/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7648/comments | https://api.github.com/repos/huggingface/datasets/issues/7648/events | https://github.com/huggingface/datasets/pull/7648 | 3,181,409,736 | PR_kwDODunzps6cWmSn | 7,648 | Fix misleading add_column() usage example in docstring | {
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This PR fixes the usage example in the Dataset.add_column() docstring, which previously implied that add_column() modifies the dataset in-place.
Why:
The method returns a new dataset with the additional column, and users must assign the result to a variable to preserve the change.
This should make... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7647 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7647/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7647/comments | https://api.github.com/repos/huggingface/datasets/issues/7647/events | https://github.com/huggingface/datasets/issues/7647 | 3,178,952,517 | I_kwDODunzps69evdF | 7,647 | loading mozilla-foundation--common_voice_11_0 fails | {
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"@claude Could you please address this issue"
] | 2025-06-26T12:23:48 | 2025-06-27T12:29:03 | null | NONE | null | null | {
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} | ### Describe the bug
Hello everyone,
i am trying to load `mozilla-foundation--common_voice_11_0` and it fails. Reproducer
```
import datasets
datasets.load_dataset("mozilla-foundation/common_voice_11_0", "en", split="test", streaming=True, trust_remote_code=True)
```
and it fails with
```
File ~/opt/envs/.../lib/py... | null | {
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"It adds automatic grouping of files into subsets based on their root name (e.g., `train0.jsonl`, `train1.jsonl` → `\"train\"`), as discussed above. The logic is integrated into `FolderBasedBuilder` and is fully tested + documented.\r\n\r\nLet me know if any changes are needed — happy to iterate!",
"Hi ! I believ... | 2025-06-26T07:01:37 | 2025-06-27T18:04:04 | null | CONTRIBUTOR | null | null | null | Fixes #7066
This PR introduces automatic **subset-level grouping** for folder-based dataset builders by:
1. Adding a utility function `group_files_by_subset()` that clusters files by root name (ignoring digits and shard suffixes).
2. Integrating this logic into `FolderBasedBuilder._split_generators()` to yield one... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7645 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7645/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7645/comments | https://api.github.com/repos/huggingface/datasets/issues/7645/events | https://github.com/huggingface/datasets/pull/7645 | 3,176,810,164 | PR_kwDODunzps6cHkp- | 7,645 | `ClassLabel` docs: Correct value for unknown labels | {
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https://github.com/huggingface/datasets/blob/e71b0b19d79c7531f9b9bea7c09916b5f6157f42/src/datasets/features/features.py#L1126-L1129 | null | {
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] | 2025-06-25T17:07:55 | 2025-06-25T17:10:30 | 2025-06-25T17:08:01 | MEMBER | null | null | null | fix error from https://github.com/huggingface/datasets/pull/7643 | {
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https://api.github.com/repos/huggingface/datasets/issues/7640 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7640/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7640/comments | https://api.github.com/repos/huggingface/datasets/issues/7640/events | https://github.com/huggingface/datasets/pull/7640 | 3,175,914,924 | PR_kwDODunzps6cEofU | 7,640 | better features repr | {
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"The docs for this PR live [here](https://huggingface.co/proxy/moon-ci-docs.huggingface.co/docs/datasets/pr_7640). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-06-25T14:37:32 | 2025-06-25T14:46:47 | 2025-06-25T14:46:45 | MEMBER | null | null | null | following the addition of List in #7634
before:
```python
In [3]: ds.features
Out[3]:
{'json': {'id': Value(dtype='string', id=None),
'metadata:transcript': [{'end': Value(dtype='float64', id=None),
'start': Value(dtype='float64', id=None),
'transcript': Value(dtype='string', id=None),
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https://api.github.com/repos/huggingface/datasets/issues/7639 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7639/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7639/comments | https://api.github.com/repos/huggingface/datasets/issues/7639/events | https://github.com/huggingface/datasets/pull/7639 | 3,175,616,169 | PR_kwDODunzps6cDoAf | 7,639 | fix save_infos | {
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https://api.github.com/repos/huggingface/datasets/issues/7638 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7638/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7638/comments | https://api.github.com/repos/huggingface/datasets/issues/7638/events | https://github.com/huggingface/datasets/pull/7638 | 3,172,645,391 | PR_kwDODunzps6b5vpZ | 7,638 | Add ignore_decode_errors option to Image feature for robust decoding #7612 | {
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"cc @lhoestq"
] | 2025-06-24T16:47:51 | 2025-06-24T16:48:03 | null | CONTRIBUTOR | null | null | null | This PR implements support for robust image decoding in the `Image` feature, as discussed in issue #7612.
## 🔧 What was added
- A new boolean field: `ignore_decode_errors` (default: `False`)
- If set to `True`, any exceptions during decoding will be caught, and `None` will be returned instead of raising an error
... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7637 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7637/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7637/comments | https://api.github.com/repos/huggingface/datasets/issues/7637/events | https://github.com/huggingface/datasets/issues/7637 | 3,171,883,522 | I_kwDODunzps69DxoC | 7,637 | Introduce subset_name as an alias of config_name | {
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"I second this! When you come from the Hub, the intuitive question is \"how do I set the subset name\", and it's not easily answered from the docs: `subset_name` would answer this directly.",
"I've submitted PR [#7657](https://github.com/huggingface/datasets/pull/7657) to introduce subset_name as a user-facing al... | 2025-06-24T12:49:01 | 2025-06-29T10:55:54 | null | MEMBER | null | null | {
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} | ### Feature request
Add support for `subset_name` as an alias for `config_name` in the datasets library and related tools (such as loading scripts, documentation, and metadata).
### Motivation
The Hugging Face Hub dataset viewer displays a column named **"Subset"**, which refers to what is currently technically call... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7636 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7636/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7636/comments | https://api.github.com/repos/huggingface/datasets/issues/7636/events | https://github.com/huggingface/datasets/issues/7636 | 3,170,878,167 | I_kwDODunzps68_8LX | 7,636 | "open" in globals()["__builtins__"], an error occurs: "TypeError: argument of type 'module' is not iterable" | {
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"@kuanyan9527 Your query is indeed valid. Following could be its reasoning:\n\nQuoting from https://stackoverflow.com/a/11181607:\n\"By default, when in the `__main__` module,` __builtins__` is the built-in module `__builtin__` (note: no 's'); when in any other module, `__builtins__` is an alias for the dictionary ... | 2025-06-24T08:09:39 | 2025-07-01T01:54:08 | 2025-07-01T01:54:08 | NONE | null | null | {
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} | When I run the following code, an error occurs: "TypeError: argument of type 'module' is not iterable"
```python
print("open" in globals()["__builtins__"])
```
Traceback (most recent call last):
File "./main.py", line 2, in <module>
print("open" in globals()["__builtins__"])
^^^^^^^^^^^^^^^^^^^^^^
TypeE... | {
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https://api.github.com/repos/huggingface/datasets/issues/7635 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7635/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7635/comments | https://api.github.com/repos/huggingface/datasets/issues/7635/events | https://github.com/huggingface/datasets/pull/7635 | 3,170,486,408 | PR_kwDODunzps6bybOe | 7,635 | Fix: Preserve float columns in JSON loader when values are integer-like (e.g. 0.0, 1.0) | {
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This caused issues downstream in statistics computation (e.g., dataset-viewer) where such columns were incorrectly labeled as `"int"` inst... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7634 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7634/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7634/comments | https://api.github.com/repos/huggingface/datasets/issues/7634/events | https://github.com/huggingface/datasets/pull/7634 | 3,169,389,653 | PR_kwDODunzps6buyij | 7,634 | Replace Sequence by List | {
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"The docs for this PR live [here](https://huggingface.co/proxy/moon-ci-docs.huggingface.co/docs/datasets/pr_7634). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-06-23T20:35:48 | 2025-06-25T13:59:13 | 2025-06-25T13:59:11 | MEMBER | null | null | null | Sequence is just a utility that we need to keep for backward compatibility. And `[ ]` was used instead but doesn't allow passing the length of the list.
This PR removes most mentions of Sequence and usage of `[ ]` and defines a proper List type instead.
before: `Sequence(Value("int64"))` or `[Value("int64")]`
no... | {
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https://api.github.com/repos/huggingface/datasets/issues/7633 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7633/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7633/comments | https://api.github.com/repos/huggingface/datasets/issues/7633/events | https://github.com/huggingface/datasets/issues/7633 | 3,168,399,637 | I_kwDODunzps682fEV | 7,633 | Proposal: Small Tamil Discourse Coherence Dataset. | {
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} | I’m a beginner from NIT Srinagar proposing a dataset of 50 Tamil text pairs for discourse coherence (coherent/incoherent labels) to support NLP research in low-resource languages.
- Size: 50 samples
- Format: CSV with columns (text1, text2, label)
- Use case: Training NLP models for coherence
I’ll use GitHub’s web edit... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7632 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7632/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7632/comments | https://api.github.com/repos/huggingface/datasets/issues/7632/events | https://github.com/huggingface/datasets/issues/7632 | 3,168,283,589 | I_kwDODunzps682CvF | 7,632 | Graceful Error Handling for cast_column("image", Image(decode=True)) in Hugging Face Datasets | {
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} | ### Feature request
Currently, when using dataset.cast_column("image", Image(decode=True)), the pipeline throws an error and halts if any image in the dataset is invalid or corrupted (e.g., truncated files, incorrect formats, unreachable URLs). This behavior disrupts large-scale processing where a few faulty samples a... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7631 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7631/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7631/comments | https://api.github.com/repos/huggingface/datasets/issues/7631/events | https://github.com/huggingface/datasets/pull/7631 | 3,165,127,657 | PR_kwDODunzps6bgwOB | 7,631 | Pass user-agent from DownloadConfig into fsspec storage_options | {
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"- This PR assumes that `HfFileSystem` in `huggingface_hub` supports receiving `headers` in `storage_options`. If not, a follow-up PR can be opened to add this support to `HfFileSystem.__init__`.\r\n- No test was added for this since it’s a config passthrough. If needed, I’d be happy to add one."
] | 2025-06-21T14:22:25 | 2025-06-21T14:25:28 | null | CONTRIBUTOR | null | null | null | Fixes part of issue #6046
### Problem
The `user-agent` defined in `DownloadConfig` was not passed down to fsspec-based filesystems like `HfFileSystem`, which prevents proper identification/tracking of client requests.
### Solution
Added support for injecting the `user-agent` into `storage_options["headers"]` wi... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7630 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7630/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7630/comments | https://api.github.com/repos/huggingface/datasets/issues/7630/events | https://github.com/huggingface/datasets/issues/7630 | 3,164,650,900 | I_kwDODunzps68oL2U | 7,630 | [bug] resume from ckpt skips samples if .map is applied | {
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"Thanks for reporting this — it looks like a separate but related bug to #7538, which involved sample loss when resuming an `IterableDataset` wrapped in `FormattedExamplesIterable`. That was resolved in #7553 by re-batching the iterable to track offset correctly.\n\nIn this case, the issue seems to arise specifical... | 2025-06-21T01:50:03 | 2025-06-29T07:51:32 | null | NONE | null | null | {
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} | ### Describe the bug
resume from ckpt skips samples if .map is applied
Maybe related: https://github.com/huggingface/datasets/issues/7538
### Steps to reproduce the bug
```python
from datasets import Dataset
from datasets.distributed import split_dataset_by_node
# Create dataset with map transformation
def create... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7629 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7629/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7629/comments | https://api.github.com/repos/huggingface/datasets/issues/7629/events | https://github.com/huggingface/datasets/pull/7629 | 3,161,169,782 | PR_kwDODunzps6bTc7b | 7,629 | Add test for `as_iterable_dataset()` method in DatasetBuilder | {
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The test:
- Loads a builder using `load_dataset_builder("c4", "en")`
- Runs `download_and_prepare()`
- Streams examples using `builder.as_iterable_dataset(split="train[:100]")`
- Verifies streamed examples contain the "text" f... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7628 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7628/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7628/comments | https://api.github.com/repos/huggingface/datasets/issues/7628/events | https://github.com/huggingface/datasets/pull/7628 | 3,161,156,461 | PR_kwDODunzps6bTaGk | 7,628 | Add `as_iterable_dataset()` method to DatasetBuilder for streaming from cached Arrow files | {
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It allows users to load an `IterableDataset` directly from cached Arrow files (using ArrowReader and ArrowExamplesIterable), without loading the full dataset into memory.
This is useful for large-scale training scenarios where memo... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7627 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7627/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7627/comments | https://api.github.com/repos/huggingface/datasets/issues/7627/events | https://github.com/huggingface/datasets/issues/7627 | 3,160,544,390 | I_kwDODunzps68YhSG | 7,627 | Creating a HF Dataset from lakeFS with S3 storage takes too much time! | {
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"### > Update\n\nThe bottleneck, from what I understand, was making one network request per file\n\nFor 30k images, this meant 30k separate GET requests to the MinIO server through the S3 API, and that was killing the performance\n\nUsing webDataset to transform the large number of files to few .tar files and passi... | 2025-06-19T14:28:41 | 2025-06-23T12:39:10 | 2025-06-23T12:39:10 | NONE | null | null | {
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I’m new to HF dataset and I tried to create datasets based on data versioned in **lakeFS** _(**MinIO** S3 bucket as storage backend)_
Here I’m using ±30000 PIL image from MNIST data however it is taking around 12min to execute, which is a lot!
From what I understand, it is loading the images into cache then buil... | {
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https://api.github.com/repos/huggingface/datasets/issues/7626 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7626/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7626/comments | https://api.github.com/repos/huggingface/datasets/issues/7626/events | https://github.com/huggingface/datasets/pull/7626 | 3,159,322,138 | PR_kwDODunzps6bNMuF | 7,626 | feat(map): reuse unchanged columns when input_columns specified to reduce disk usage (#6013) | {
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This PR addresses [#6013](https://github.com/huggingface/datasets/issues/6013) by reusing unchanged columns from the original dataset in the `map()` method when `input_columns` is specified.
## What’s Implemented
- Injected logic at the end of `Dataset.map()` to:
- Identify untouched columns not ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7625 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7625/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7625/comments | https://api.github.com/repos/huggingface/datasets/issues/7625/events | https://github.com/huggingface/datasets/pull/7625 | 3,159,016,001 | PR_kwDODunzps6bMKof | 7,625 | feat: Add h5folder dataset loader for HDF5 support | {
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"The docs for this PR live [here](https://huggingface.co/proxy/moon-ci-docs.huggingface.co/docs/datasets/pr_7625). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"I guess test failed cause import os, import h5py, and import datasets lines are not alp... | 2025-06-19T05:39:10 | 2025-06-26T05:44:26 | null | CONTRIBUTOR | null | null | null | ### Related Issue
Closes #3113
### What does this PR do?
This PR introduces a new dataset loader module called **`h5folder`** to support loading datasets stored in **HDF5 (.h5)** format.
It allows users to do:
```python
from datasets import load_dataset
dataset = load_dataset("h5folder", data_dir="path/t... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7624 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7624/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7624/comments | https://api.github.com/repos/huggingface/datasets/issues/7624/events | https://github.com/huggingface/datasets/issues/7624 | 3,156,136,624 | I_kwDODunzps68HtKw | 7,624 | #Dataset Make "image" column appear first in dataset preview UI | {
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"Hi ! It should follow the same order as the order of the keys in the metadata file",
"Hi! Thank you for your answer. \n\nAs you said it, I I forced every key in every JSON to have an order using `collections. OrderedDict` in Python. Now, it works!\n\nTY"
] | 2025-06-18T09:25:19 | 2025-06-20T07:46:43 | 2025-06-20T07:46:43 | NONE | null | null | {
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#Dataset
I’m currently uploading a dataset that includes an `"image"` column (PNG files), along with some metadata columns. The dataset is loaded from a .jsonl file. My goal is to have the "image" column appear as the first column in the dataset card preview UI on the :hugs: Hub.
However, at the moment, the `"im... | {
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https://api.github.com/repos/huggingface/datasets/issues/7623 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7623/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7623/comments | https://api.github.com/repos/huggingface/datasets/issues/7623/events | https://github.com/huggingface/datasets/pull/7623 | 3,154,519,684 | PR_kwDODunzps6a9Jk5 | 7,623 | fix: raise error in FolderBasedBuilder when data_dir and data_files are missing | {
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"@lhoestq Moved the logic to FolderBasedBuilder._info() as discussed in previous PR (#7618). Let me know if anything else is needed — happy to update!",
"The docs for this PR live [here](https://huggingface.co/proxy/moon-ci-docs.huggingface.co/docs/datasets/pr_7623). All of your documentation changes will be reflected on that endpoin... | 2025-06-17T19:16:34 | 2025-06-18T14:18:41 | 2025-06-18T14:18:41 | CONTRIBUTOR | null | null | null | ### Related Issues/PRs
Fixes #6152
---
### What changes are proposed in this pull request?
This PR adds a dedicated validation check in the `_info()` method of the `FolderBasedBuilder` class to ensure that users provide either `data_dir` or `data_files` when loading folder-based datasets (such as `audiofold... | {
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https://api.github.com/repos/huggingface/datasets/issues/7622 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7622/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7622/comments | https://api.github.com/repos/huggingface/datasets/issues/7622/events | https://github.com/huggingface/datasets/pull/7622 | 3,154,398,557 | PR_kwDODunzps6a8v6J | 7,622 | Guard against duplicate builder_kwargs/config_kwargs in load_dataset_… | {
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### What does this PR do?
Fixes edge case in `load_dataset_builder` by raising a `TypeError` if the same key exists in both `builder_kwargs` and `config_kwargs`.
### Implementation details
- Added a guard clause in `load_dataset_builder` to detect duplicate keys between `builder_kwargs` an... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7621 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7621/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7621/comments | https://api.github.com/repos/huggingface/datasets/issues/7621/events | https://github.com/huggingface/datasets/pull/7621 | 3,153,780,963 | PR_kwDODunzps6a6rAu | 7,621 | minor docs data aug | {
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"The docs for this PR live [here](https://huggingface.co/proxy/moon-ci-docs.huggingface.co/docs/datasets/pr_7621). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-06-17T14:46:57 | 2025-06-17T14:50:28 | 2025-06-17T14:47:11 | MEMBER | null | null | null | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7620 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7620/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7620/comments | https://api.github.com/repos/huggingface/datasets/issues/7620/events | https://github.com/huggingface/datasets/pull/7620 | 3,153,565,183 | PR_kwDODunzps6a58TP | 7,620 | Fixes in docs | {
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"The docs for this PR live [here](https://huggingface.co/proxy/moon-ci-docs.huggingface.co/docs/datasets/pr_7620). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-06-17T13:41:54 | 2025-06-17T13:58:26 | 2025-06-17T13:58:24 | MEMBER | null | null | null | before release 4.0
(I also did minor improvements to `features` to not show their `id=None` in their `__repr__()`) | {
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https://api.github.com/repos/huggingface/datasets/issues/7619 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7619/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7619/comments | https://api.github.com/repos/huggingface/datasets/issues/7619/events | https://github.com/huggingface/datasets/issues/7619 | 3,153,058,517 | I_kwDODunzps6779rV | 7,619 | `from_list` fails while `from_generator` works for large datasets | {
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"@lhoestq any thoughts on this? ",
"Thanks for the report! This behavior is expected due to how `from_list()` and `from_generator()` differ internally.\n\n- `from_list()` builds the entire dataset in memory at once, which can easily exceed limits (especially with variable-length arrays or millions of rows). The A... | 2025-06-17T10:58:55 | 2025-06-29T16:34:44 | null | NONE | null | null | {
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} | ### Describe the bug
I am constructing a large time series dataset and observed that first constructing a list of entries and then using `Dataset.from_list` led to a crash as the number of items became large. However, this is not a problem when using `Dataset.from_generator`.
### Steps to reproduce the bug
#### Snip... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7618 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7618/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7618/comments | https://api.github.com/repos/huggingface/datasets/issues/7618/events | https://github.com/huggingface/datasets/pull/7618 | 3,148,912,897 | PR_kwDODunzps6aqOnm | 7,618 | fix: raise error when folder-based datasets are loaded without data_dir or data_files | {
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"Great ! Since this logic is specific to one builder class maybe this check can be in the class definition ? I think you can put it in FolderBasedBuilder's `_info()` method."
] | 2025-06-16T07:43:59 | 2025-06-16T12:13:26 | null | CONTRIBUTOR | null | null | null |
### Related Issues/PRs
<!-- Uncomment 'Resolve' if this PR can close the linked items. -->
<!-- Resolve --> #6152
---
### What changes are proposed in this pull request?
This PR adds an early validation step for folder-based datasets (like `audiofolder`) to prevent silent fallback behavior.
**Before t... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7617 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7617/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7617/comments | https://api.github.com/repos/huggingface/datasets/issues/7617/events | https://github.com/huggingface/datasets/issues/7617 | 3,148,102,085 | I_kwDODunzps67pDnF | 7,617 | Unwanted column padding in nested lists of dicts | {
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"Answer from @lhoestq:\n\n> No\n> This is because Arrow and Parquet a columnar format: they require a fixed type for each column. So if you have nested dicts, each item should have the same subfields\n\nThe way around I found is the handle it after sampling with this function:\n\n```python\ndef remove_padding(examp... | 2025-06-15T22:06:17 | 2025-06-16T13:43:31 | 2025-06-16T13:43:31 | MEMBER | null | null | {
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} | ```python
from datasets import Dataset
dataset = Dataset.from_dict({
"messages": [
[
{"a": "...",},
{"b": "...",},
],
]
})
print(dataset[0])
```
What I get:
```
{'messages': [{'a': '...', 'b': None}, {'a': None, 'b': '...'}]}
```
What I want:
```
{'messages': [{'a': '... | {
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