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https://api.github.com/repos/huggingface/datasets/issues/7994 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7994/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7994/comments | https://api.github.com/repos/huggingface/datasets/issues/7994/events | https://github.com/huggingface/datasets/issues/7994 | 3,906,330,806 | I_kwDODunzps7o1eC2 | 7,994 | Bump fsspec upper bound constraint | {
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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... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7993 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7993/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7993/comments | https://api.github.com/repos/huggingface/datasets/issues/7993/events | https://github.com/huggingface/datasets/pull/7993 | 3,898,606,021 | PR_kwDODunzps7Bkr3F | 7,993 | :sparkles: Add 'SparseCsv' builder and 'sparse_collate_fn' for efficient high-dimensional sparse data loading | {
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It also adds a utility function, `sparse_collate_fn`, to... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7992 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7992/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7992/comments | https://api.github.com/repos/huggingface/datasets/issues/7992/events | https://github.com/huggingface/datasets/pull/7992 | 3,897,848,157 | PR_kwDODunzps7BiJps | 7,992 | Add `IterableDataset.reshard()` | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7992). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-02-04T18:24:41 | 2026-02-04T18:55:38 | 2026-02-04T18:55:35 | MEMBER | null | null | null | null | To increase the number of shards of a dataset, you can use [`IterableDataset.reshard`]:
```py
>>> dataset
IterableDataset({
features: ['label', 'title', 'content'],
num_shards: 4
})
>>> dataset.reshard()
IterableDataset({
features: ['label', 'title', 'content'],
num_shards: 3600
})
```
... | {
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https://api.github.com/repos/huggingface/datasets/issues/7991 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7991/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7991/comments | https://api.github.com/repos/huggingface/datasets/issues/7991/events | https://github.com/huggingface/datasets/issues/7991 | 3,896,884,513 | I_kwDODunzps7oRb0h | 7,991 | list(api.list_datasets()) giving jsondecode error | {
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} | i am using the python api wrapper to list all datasets available on hugging face. This is for research, and i need all datasets to determine which % have language tags and other related questions requiring the total list. However, the following code that worked a few months ago:
```
from huggingface_hub import HfApi
a... | {
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https://api.github.com/repos/huggingface/datasets/issues/7990 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7990/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7990/comments | https://api.github.com/repos/huggingface/datasets/issues/7990/events | https://github.com/huggingface/datasets/issues/7990 | 3,895,870,826 | I_kwDODunzps7oNkVq | 7,990 | Dataset.map crashes when first examples return None and later examples return dict — writer not initialized | {
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} | ### Describe the bug
I detected a serious [bug from datasets/arrow_dataset.py](https://github.com/huggingface/datasets/blob/main/src/datasets/arrow_dataset.py#L3676)
---
**Description of the bug**
`Dataset.map` crashes with `writer is None` when the map function returns `None` for the first few examples and a diction... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7989 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7989/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7989/comments | https://api.github.com/repos/huggingface/datasets/issues/7989/events | https://github.com/huggingface/datasets/pull/7989 | 3,895,613,949 | PR_kwDODunzps7BaxDx | 7,989 | Remove pre-release workaround in CI for `transformers v5` and `huggingface_hub v1` | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7989). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-02-04T09:42:49 | 2026-02-04T15:20:04 | 2026-02-04T15:20:02 | CONTRIBUTOR | null | null | null | null | This PR removes workaround for pre-release `transformers v5.*` / `huggingface_hub v1.*` in `test_py314_future` job since they are now officially released.
cc @Wauplin just for viz since you introduced this in https://github.com/huggingface/datasets/pull/7783. | {
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https://api.github.com/repos/huggingface/datasets/issues/7988 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7988/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7988/comments | https://api.github.com/repos/huggingface/datasets/issues/7988/events | https://github.com/huggingface/datasets/issues/7988 | 3,895,353,435 | I_kwDODunzps7oLmBb | 7,988 | `Dataset.map()` breaks when `function` calls `import polars as pl` and `num_proc`>1: "UnboundLocalError: cannot access local variable 'pl' where it is not associated with a value" | {
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} | ### Describe the bug
# Repro
These two conditions seem to consistently reproduce the issue:
- function passed to `Dataset.map()` explicitly or implicitly calls `import polars as pl`
- `num_proc` > 1
# Trace
```
RemoteTraceback Traceback (most recent call last)
RemoteTraceback:
"""
Traceback... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7987 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7987/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7987/comments | https://api.github.com/repos/huggingface/datasets/issues/7987/events | https://github.com/huggingface/datasets/pull/7987 | 3,894,713,494 | PR_kwDODunzps7BX0pY | 7,987 | Fix index out of bound error with original_shard_lengths. | {
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```
original_shard_lengths[original_shard_id] += 1
~~~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^
IndexError: list index out of range
```
Not sure what causes it, but this fixes the error. This may not be the proper fix for the root cause though. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7986 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7986/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7986/comments | https://api.github.com/repos/huggingface/datasets/issues/7986/events | https://github.com/huggingface/datasets/issues/7986 | 3,892,776,651 | I_kwDODunzps7oBw7L | 7,986 | `Dataset.map()` causes cache miss/fingerprint change when closure captures self containing non-deterministic state. | {
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"I suggest metion this in docs specifically for attention with use, tell users explicitly to pass arguments with `fn_kwargs` param or using `functools.partial` to create a pure funcion."
] | 2026-02-03T19:16:49 | 2026-02-06T08:38:13 | null | NONE | null | null | {
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When using `.map()` with a function defined inside a **class (of which has any non-deterministic states)** method (a closure), if that function captures `self` to access a configuration variable (e.g., self.foo), the fingerprint mechanism serializes the entire class instance state.
If the class i... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7985 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7985/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7985/comments | https://api.github.com/repos/huggingface/datasets/issues/7985/events | https://github.com/huggingface/datasets/pull/7985 | 3,892,480,150 | PR_kwDODunzps7BQaGn | 7,985 | Remove unused data files optims | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7985). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-02-03T17:58:30 | 2026-02-03T18:30:30 | 2026-02-03T18:30:28 | MEMBER | null | null | null | null | this fixes module inference when there are many metadata files
e.g. the lance dataset at https://huggingface.co/datasets/davanstrien/encyclopaedia-britannica-lance has > 200 metadata files
those optims are not used anymore, they come from a time we were dealing with slow data files iterators instead of lists | {
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] | 2026-02-03T00:06:46 | 2026-02-04T00:09:20 | null | NONE | null | null | null | null | Add initial Zarr streaming support (POC).
This introduces a `zarr` packaged module and docs/tests to validate basic loading.
Note: I pushed a follow-up commit to fix an accidental duplication in `benchmarks/benchmark_zarr_streaming.py` (file now contains a single benchmark script). | null | {
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] | 2026-02-02T23:34:51 | 2026-02-05T05:41:24 | null | NONE | null | null | null | null | Fix unstable dataset fingerprinting when hashing `PreTrainedTokenizerFast`.
Some tokenizers backed by `tokenizers.Tokenizer` mutate runtime settings (padding/truncation) when called, which can change the serialized state and make dataset fingerprints unstable. That prevents `.map(load_from_cache_file=True)` from reusi... | null | {
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] | 2026-02-02T16:13:04 | 2026-02-02T16:26:31 | 2026-02-02T16:26:29 | MEMBER | null | null | null | null | EOL was a few months ago, and transformers doesn't support 3.9 anymore | {
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this is enabled for for datasets loaded using streaming=True/False | {
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Problem: load_dataset("dataset", base_path="./data")` gives TypeError("multiple values for keyword 'base_path')
Fix: {**builder_kwargs, **config_kwargs} to user kwargs override dataset defaults
Repro : python
Before: TypeError
load_dataset("r... | null | {
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This helps new users discover the most direct way to build a small dataset from in-memory Python data.
Docs-only change. | null | {
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Some module factories provide values in `builder_kwargs` (e.g. `base_path`), and users can also pass the same keys via `config_kwargs`, which raises:
`TypeError: ... got multiple values for keyword argument ...`.
Fix: if `config_kwargs` is provided,... | null | {
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Problem: on the local `file://` filesystem, `fsspec` can report symlinks as `type=="other"` and omit the `islink` flag, so symlinked files are skipped.
Fix: when `protocol=="file"`, treat `os.path.islink(filepath)` as a link candidate and include it if it resolves to... | null | {
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"... | [] | open | false | null | [] | null | [] | 2026-01-30T05:47:13 | 2026-01-30T05:54:15 | null | CONTRIBUTOR | null | null | null | null | This commit optimizes streaming operations by implementing [_iter_arrow](cci:1://file:///c:/Users/ASUS/Desktop/datasets/src/datasets/iterable_dataset.py:377:4-391:57) for [SkipExamplesIterable](cci:2://file:///c:/Users/ASUS/Desktop/datasets/src/datasets/iterable_dataset.py:1798:0-1892:42), [TakeExamplesIterable](cci:2:... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7971 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7971/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7971/comments | https://api.github.com/repos/huggingface/datasets/issues/7971/events | https://github.com/huggingface/datasets/pull/7971 | 3,871,984,311 | PR_kwDODunzps7AMzLl | 7,971 | push_to_hub() for videos | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7971). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-01-29T18:16:58 | 2026-01-31T11:50:25 | 2026-01-29T18:56:04 | MEMBER | null | null | null | null | possible now that row group sizes are auto-determined based on the content size after https://github.com/huggingface/datasets/pull/7589
Videos are uploaded as PLAIN in Parquet to make sure they can be seeked remotely and with random access to frames in https://github.com/huggingface/datasets/pull/7976
In the futu... | {
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https://api.github.com/repos/huggingface/datasets/issues/7970 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7970/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7970/comments | https://api.github.com/repos/huggingface/datasets/issues/7970/events | https://github.com/huggingface/datasets/issues/7970 | 3,869,700,866 | I_kwDODunzps7mpvMC | 7,970 | cast_column(..., Audio) fails with load_dataset("csv",) | {
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"The following code *does* work:\n```py\nfrom datasets import load_dataset,Audio,Features\n\ndataset = load_dataset(\"csv\",data_files=\"audio.csv\",features=Features({\"audio\": Audio()}))\nprint(dataset[\"train\"][0][\"audio\"])\n```",
"Thanks for reporing ! Are you using pandas v3 by any chance ? The CSV loade... | 2026-01-29T09:33:35 | 2026-01-29T22:24:14 | null | NONE | null | null | {
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} | ### Describe the bug
Attempt to load a dataset from a csv with a single `audio` column with a single row with a path to an audio file fails when casting the column to Audio, but the exact same dataset created from a dictionary succeeds.
### Steps to reproduce the bug
1. Have any valid audio file `audio.wav`
2. Have ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7969 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7969/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7969/comments | https://api.github.com/repos/huggingface/datasets/issues/7969/events | https://github.com/huggingface/datasets/pull/7969 | 3,865,100,307 | PR_kwDODunzps6_1p9H | 7,969 | Count examples in lance | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7969). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-01-28T12:00:37 | 2026-01-28T13:00:26 | 2026-01-28T13:00:23 | MEMBER | null | null | null | null | ```python
In [1]: from datasets import load_dataset_builder, StreamingDownloadManager
In [2]: b = load_dataset_builder("lance-format/openvid-lance")
Resolving data files: 100%|█| 240/240 [00:00<00:00, 42675.64it/s
In [3]: b.count_examples(StreamingDownloadManager())
Out[3]: {'train': 937957}
``` | {
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https://api.github.com/repos/huggingface/datasets/issues/7968 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7968/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7968/comments | https://api.github.com/repos/huggingface/datasets/issues/7968/events | https://github.com/huggingface/datasets/issues/7968 | 3,864,988,355 | I_kwDODunzps7mXwrD | 7,968 | Potential conflicting type checks and dead code in `/src/datasets/table.py` | {
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"ConcatenationTable is a subclass of datasets.table.Table but not pa.Table, so it should be fine"
] | 2026-01-28T11:34:53 | 2026-01-28T13:05:28 | null | NONE | null | null | {
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```
def to_blocks(table: Union[pa.Table, Table]) -> list[list[TableBlock]]:
if isinstance(table, pa.Table):
return [[InMemoryTable(table)]]
elif isinstance(ta... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7967 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7967/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7967/comments | https://api.github.com/repos/huggingface/datasets/issues/7967/events | https://github.com/huggingface/datasets/pull/7967 | 3,863,579,646 | PR_kwDODunzps6_wnm8 | 7,967 | Issue 7756 Fix - multiprocessing hang issue with start method check | {
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Detects bad multiprocessing start_method, fallback happens.
https://github.com/huggingface/datasets/issues/7756 | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7966 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7966/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7966/comments | https://api.github.com/repos/huggingface/datasets/issues/7966/events | https://github.com/huggingface/datasets/pull/7966 | 3,861,774,379 | PR_kwDODunzps6_qp_e | 7,966 | Infer types from lance blobs | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7966). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-01-27T18:00:25 | 2026-01-28T13:02:25 | 2026-01-28T13:02:23 | MEMBER | null | null | null | null | Ex: infer Video() type in https://huggingface.co/datasets/lance-format/openvid-lance and Image() type in https://huggingface.co/datasets/lance-format/laion-1m
```python
from datasets import load_dataset
ds = load_dataset("lance-format/laion-1m", streaming=True, split="train")
print(ds.feature["image"])
# Image... | {
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https://api.github.com/repos/huggingface/datasets/issues/7965 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7965/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7965/comments | https://api.github.com/repos/huggingface/datasets/issues/7965/events | https://github.com/huggingface/datasets/issues/7965 | 3,858,483,549 | I_kwDODunzps7l-8ld | 7,965 | `huggingface_hub.errors.HfHubHTTPError: 404 Client Error: Not Found for url` when fetching a dataset with `datasets.load_dataset` | {
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"Hi ! Yes you should use `cornell-movie-review-data/rotten_tomatoes` instead of `rotten_tomatoes`, which is the legacy name. Those datasets have been moved under their actual owners accounts some time ago (but we were keeping the old names as aliases)\n\nSome other impacted names are:\n- `imdb` -> `stanfordnlp/imdb... | 2026-01-27T02:20:31 | 2026-01-28T15:14:50 | 2026-01-28T15:14:50 | NONE | null | null | {
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} | Not a bug but a question. We started getting the following error:
https://github.com/mlflow/mlflow/actions/runs/21368603305/job/61506951617
```
ests/data/test_huggingface_dataset_and_source.py::test_from_huggingface_dataset_constructs_expected_dataset_with_revision - huggingface_hub.errors.HfHubHTTPError: 404 Client ... | {
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https://api.github.com/repos/huggingface/datasets/issues/7964 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7964/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7964/comments | https://api.github.com/repos/huggingface/datasets/issues/7964/events | https://github.com/huggingface/datasets/pull/7964 | 3,858,025,706 | PR_kwDODunzps6_eOZR | 7,964 | handle blob lance | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7964). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-01-26T22:56:24 | 2026-01-26T22:59:18 | 2026-01-26T22:56:38 | MEMBER | null | null | null | null | following #7913 | {
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https://api.github.com/repos/huggingface/datasets/issues/7963 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7963/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7963/comments | https://api.github.com/repos/huggingface/datasets/issues/7963/events | https://github.com/huggingface/datasets/pull/7963 | 3,856,921,322 | PR_kwDODunzps6_ajTD | 7,963 | Support null in json string cols | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7963). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-01-26T17:31:55 | 2026-01-26T17:48:46 | 2026-01-26T17:48:44 | MEMBER | null | null | null | null | fix for https://huggingface.co/datasets/arcprize/arc_agi_v2_public_eval | {
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https://api.github.com/repos/huggingface/datasets/issues/7962 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7962/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7962/comments | https://api.github.com/repos/huggingface/datasets/issues/7962/events | https://github.com/huggingface/datasets/pull/7962 | 3,856,811,005 | PR_kwDODunzps6_aM71 | 7,962 | Use Sequence instead of list in Dataset.from_parquet type hints | {
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"Thank you for the review!\r\n\r\nI’ve updated the implementation to:\r\n- Use Sequence from collections.abc as per project conventions\r\n- Restore backward compatibility with Union[PathLike, Sequence[PathLike]]\r\n- Keep the columns annotation as Optional[Sequence[str]]\r\n\r\nThe fixes are pushed. Please let me ... | 2026-01-26T17:01:47 | 2026-02-04T06:47:52 | null | NONE | null | null | null | null | This PR updates type annotations in Dataset.from_parquet to use Sequence instead of list to avoid mypy invariant type issues, as discussed in issue #5354.
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https://api.github.com/repos/huggingface/datasets/issues/7961 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7961/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7961/comments | https://api.github.com/repos/huggingface/datasets/issues/7961/events | https://github.com/huggingface/datasets/pull/7961 | 3,847,883,164 | PR_kwDODunzps6-9GHz | 7,961 | Revert "feat: avoid some copies in torch formatter (#7787)" | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7961). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-01-23T15:13:01 | 2026-01-23T15:16:01 | 2026-01-23T15:15:33 | MEMBER | null | null | null | null | This reverts commit c412a6f5a50955e141c5169bf7abe005d10228d2 (I assume it was ai generated which makes it hard for me to review and make sure it doesn't have bad edge cases, but lmk if it wasn't, anyways it didn't take into account the torch kwargs which are responsible for sending the data to the correct device) | {
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https://api.github.com/repos/huggingface/datasets/issues/7960 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7960/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7960/comments | https://api.github.com/repos/huggingface/datasets/issues/7960/events | https://github.com/huggingface/datasets/pull/7960 | 3,847,601,199 | PR_kwDODunzps6-8Iak | 7,960 | docs: fix grammar and add type hints in splits.py | {
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src/datasets/splits.py
by:
Fixing pluralization/grammar errors in docstrings (Lines 62, 73, 403).
Adding Python type hints to the
NamedSplit
constructor for better code quality.
Verified with ruff format and ruff check. | {
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https://api.github.com/repos/huggingface/datasets/issues/7958 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7958/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7958/comments | https://api.github.com/repos/huggingface/datasets/issues/7958/events | https://github.com/huggingface/datasets/issues/7958 | 3,847,184,392 | I_kwDODunzps7lT2AI | 7,958 | [CUDA Tensors Not working in ~v4.5.0] set_format(type="torch", device="cuda") returns cpu | {
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"@lhoestq tagging you here as you were on the previous issue, hope that's fine. ",
"Thanks for reporting, let me take a look",
"I reverted this change which caused the issue #7961 , I'll do a new release soon but in the meantime feel free to install `datasets` from source",
"@lhoestq thanks a lot. I am actual... | 2026-01-23T12:06:48 | 2026-01-25T05:30:53 | null | NONE | null | null | {
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} | ### Describe the bug
The problem is that when calling:
```ds.set_format(type="torch", columns = ["input", "labels"], device="cuda")```
The device type of the individual datapoints is now: `cpu` as opposed to `cuda:0`.
With `v4.0.0` it still works. With `v4.5.0` it doesn't work anymore.
Related Issue:
https://github... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7957 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7957/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7957/comments | https://api.github.com/repos/huggingface/datasets/issues/7957/events | https://github.com/huggingface/datasets/pull/7957 | 3,839,573,271 | PR_kwDODunzps6-hVW5 | 7,957 | Fix all exhausted without replacement | {
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"Hi maintainers 👋 \r\nThis PR fixes `all_exhausted_without_replacement` to ensure all samples are emitted exactly once, \r\nand adds a regression test reproducing the reported issue.\r\n\r\nHappy to adjust the implementation or split changes if you’d prefer.\r\nThanks!\r\n",
"We just merged https://github.com/... | 2026-01-21T18:47:32 | 2026-01-23T16:09:28 | 2026-01-23T16:09:28 | NONE | null | null | null | null | Fix interleave_datasets "all_exhausted_without_replacement" stopping strategy
- Corrected logic to ensure each sample is picked exactly once when using
stopping_strategy="all_exhausted_without_replacement".
- Adjusted boolean stopping condition to properly track dataset exhaustion.
- Added test to verify the l... | {
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"Yes, that's a hard limit. Can you split your files into different folders? Or we'll probably have a new repo type in the near to mid future that will relax this limit a bit. ",
"Thanks! Working around this with a different sharding parameter to have fewer overall fragments (and therefore fewer files in `*.lance/... | 2026-01-21T16:37:38 | 2026-01-22T09:38:38 | null | NONE | null | null | {
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} | ### Feature request
Can the hard limit of 10k files per folder be extended with acceptable loss in performance?
### Motivation
I'm uploading a lance dataset to huggingface hub and have a folder inside lance internals (`data/*.lance/_transactions`) that has > 20k atomic transaction records and my commits are being re... | null | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7955). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2026-01-21T08:10:45 | 2026-01-24T02:55:56 | 2026-01-23T16:08:39 | CONTRIBUTOR | null | null | null | null | When using interleave_datasets with stopping_strategy="all_exhausted_without_replacement" and probabilities=None, the function was incorrectly falling into the undersampling branch, causing it to stop at min(lengths) instead of continuing until all datasets were exhausted.
This fix adds a specific branch to handle t... | {
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https://api.github.com/repos/huggingface/datasets/issues/7954 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7954/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7954/comments | https://api.github.com/repos/huggingface/datasets/issues/7954/events | https://github.com/huggingface/datasets/issues/7954 | 3,837,020,089 | I_kwDODunzps7ktEe5 | 7,954 | all_exhausted_without_replacement working same as first_exhausted | {
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} | ### Describe the bug
>>> from datasets import Dataset, interleave_datasets
>>> d1 = Dataset.from_dict({"a": [0, 1, 2]})
>>> d2 = Dataset.from_dict({"a": [10, 11, 12, 13]})
>>> d3 = Dataset.from_dict({"a": [20, 21, 22]})
>>> dataset = interleave_datasets([d1, d2, d3], stopping_strategy="all_exhausted_without_replacemen... | null | {
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Note: Local pytest errors on Python 3.13 due to removal of `distutils` are unrelated to this change.
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Note: Local pytest errors on Python 3.13 due to removal of `distutils` are unrelated to this change.
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Add native support for loading GenBank (.gb, .gbk, .genbank) files, a standard format for biological sequence data with annotations maintained by NCBI.
## Changes
- Add `genbank` packaged module with pure Python state machine parser
- Register GenBank extensions in `_PACKAGED_DATASETS_MODULES` and `_EXTENSI... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7950 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7950/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7950/comments | https://api.github.com/repos/huggingface/datasets/issues/7950/events | https://github.com/huggingface/datasets/pull/7950 | 3,825,689,242 | PR_kwDODunzps69zsW1 | 7,950 | Add examples for Lance datasets | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7950). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"Hi @prrao87 ! All the main examples with pylance should be in their dedicated documenta... | 2026-01-17T19:33:31 | 2026-01-23T16:40:20 | 2026-01-23T16:16:43 | CONTRIBUTOR | null | null | null | null | ## Summary
Updated the Lance integration docs to match the official dataset cards and expand coverage of multimodal workflows in `use_with_lance.mdx`.
## Details
- Added a Lance format-focused guidance page for multimodal examples:
- Stream from the Hub via `datasets` API
- Use Lance's dataset API to p... | {
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"This PR clarifies the documentation build instructions by improving wording and adding clarity for local builds."
] | 2026-01-17T06:24:24 | 2026-01-17T06:25:14 | null | CONTRIBUTOR | null | null | null | null | docs: clarify documentation build instructions | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7948 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7948/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7948/comments | https://api.github.com/repos/huggingface/datasets/issues/7948/events | https://github.com/huggingface/datasets/pull/7948 | 3,824,437,597 | PR_kwDODunzps69vnHh | 7,948 | json: add optional return_file_name parameter | {
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"gists_... | [] | open | false | null | [] | null | [] | 2026-01-17T05:39:43 | 2026-01-17T05:39:43 | null | NONE | null | null | null | null | This PR adds an optional `return_file_name` parameter to the JSON dataset loader.
When enabled, a new `file_name` column is added containing the source file name
for each row. Default behavior is unchanged.
Changes:
- Add `return_file_name` to JsonConfig
- Append file name during JSON table generation
- Add t... | null | {
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} | ### Describe the bug
When getting the config names of `cais/mmlu` in online mode, it provides the different subjects and `all` but in offline mode is provides `default` even with cached version of the dataset.
### Steps to reproduce the bug
1. First download dataset in online mode so that it is cached:
```
$ HF_DATA... | null | {
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