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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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} | This PR introduces a new dataset builder, SparseCsv, designed to handle "wide" tabular datasets (e.g., 100k+ columns common in transcriptomics, sparse NLP features, or recommender systems) that are typically too large to load into memory as dense Arrow tables.
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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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | 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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```
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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"gist... | [] | open | false | [] | null | 2 | 2026-02-04T10:43:20Z | 2026-05-26T19:09:11Z | null | null | NONE | [] | null | null | null | null | ### 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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"g... | [] | closed | false | [] | null | 1 | 2026-02-04T09:42:49Z | 2026-02-04T15:20:04Z | 2026-02-04T15:20:02Z | null | CONTRIBUTOR | [] | null | null | 0 | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | 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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# 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... | {
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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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} | I have gotten the following error
```
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. | {
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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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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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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | 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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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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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... | {
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this is enabled for for datasets loaded using streaming=True/False | {
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} | Fix #4910 : Merge duplicate kwargs in `load_dataset_builder()`
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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} | Docs: add a minimal `Dataset.from_dict` example.
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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} | Avoid passing duplicate keyword arguments to `load_dataset_builder`.
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,... | {
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} | Fix `resolve_pattern` for *local symlinked files*.
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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https://api.github.com/repos/huggingface/datasets/issues/7972 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7972/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7972/comments | https://api.github.com/repos/huggingface/datasets/issues/7972/events | https://github.com/huggingface/datasets/pull/7972 | 3,874,083,781 | PR_kwDODunzps7AT07I | 7,972 | feat: implement iter_arrow for skip, take and step iterables | {
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} | 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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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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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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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | ```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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```
def to_blocks(table: Union[pa.Table, Table]) -> list[list[TableBlock]]:
if isinstance(table, pa.Table):
return [[InMemoryTable(table)]]
elif isinstance(ta... | {
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} | Added a fix to prevent multiprocessing hangs by checking the start method.
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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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | 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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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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} | 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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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | 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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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... | {
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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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} | 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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] | open | false | [] | null | 2 | 2026-01-21T16:37:38Z | 2026-01-22T09:38:38Z | null | null | NONE | [] | null | null | null | null | ### 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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https://api.github.com/repos/huggingface/datasets/issues/7955 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7955/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7955/comments | https://api.github.com/repos/huggingface/datasets/issues/7955/events | https://github.com/huggingface/datasets/pull/7955 | 3,837,083,395 | PR_kwDODunzps6-Y-EL | 7,955 | Fix interleave_datasets with all_exhausted_without_replacement strategy | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | 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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>>> 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... | {
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} | \This PR replaces `list` type hints with `Sequence` in `from_parquet` to improve type checking.
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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} | ## Summary
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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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | ## 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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https://api.github.com/repos/huggingface/datasets/issues/7949 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7949/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7949/comments | https://api.github.com/repos/huggingface/datasets/issues/7949/events | https://github.com/huggingface/datasets/pull/7949 | 3,824,515,306 | PR_kwDODunzps69v3lh | 7,949 | docs: clarify documentation build instructions | {
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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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} | 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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https://api.github.com/repos/huggingface/datasets/issues/7947 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7947/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7947/comments | https://api.github.com/repos/huggingface/datasets/issues/7947/events | https://github.com/huggingface/datasets/issues/7947 | 3,823,309,787 | I_kwDODunzps7j4xPb | 7,947 | MMLU get_dataset_config_names provides different lists of subsets in online and offline modes | {
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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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https://api.github.com/repos/huggingface/datasets/issues/7946 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7946/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7946/comments | https://api.github.com/repos/huggingface/datasets/issues/7946/events | https://github.com/huggingface/datasets/issues/7946 | 3,817,678,454 | I_kwDODunzps7jjSZ2 | 7,946 | Question: Is there a faster way to push_to_hub for large image datasets? | {
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Hi! I frequently work with large image datasets (100k-300k+ samples) and found that `dataset.push_to_hub()` can be quite slow.
cc @lhoestq - would love your thoughts on this!
I experimented with an alte... | null | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | Useful to list a dataset's shards:
```python
from datasets import load_dataset_builder, StreamingDownloadManager
dlm = StreamingDownloadManager()
def get_shards(dataset_name, *args, **kwargs):
b = load_dataset_builder(dataset_name, *args, **kwargs)
splits = b._split_generators(dlm)
return list(... | {
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https://api.github.com/repos/huggingface/datasets/issues/7942 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7942/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7942/comments | https://api.github.com/repos/huggingface/datasets/issues/7942/events | https://github.com/huggingface/datasets/pull/7942 | 3,808,890,451 | PR_kwDODunzps687sR_ | 7,942 | add _OverridableIOWrapper | {
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https://api.github.com/repos/huggingface/datasets/issues/7941 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7941/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7941/comments | https://api.github.com/repos/huggingface/datasets/issues/7941/events | https://github.com/huggingface/datasets/pull/7941 | 3,807,800,603 | PR_kwDODunzps684EZa | 7,941 | Remove Python 3.7 and Python 2 code paths from _dill.py | {
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} | This PR simplifies the code pickle handling to only support Python 3.9+.
Datasets requires Python 3.9+ (since PR #7474).
There's some dill specific code branches checking for earlier versions of python which can be removed. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7940 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7940/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7940/comments | https://api.github.com/repos/huggingface/datasets/issues/7940/events | https://github.com/huggingface/datasets/pull/7940 | 3,807,386,503 | PR_kwDODunzps682sBj | 7,940 | Improve readability and documentation of indexing integration tests | {
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} | ### Summary
This PR improves the readability and maintainability of the indexing integration tests by adding clear, detailed comments throughout the test suite.
### Motivation
The indexing tests cover multiple backends (FAISS and Elasticsearch) and involve non-trivial workflows such as vector creation, indexing, q... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7939 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7939/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7939/comments | https://api.github.com/repos/huggingface/datasets/issues/7939/events | https://github.com/huggingface/datasets/issues/7939 | 3,806,889,870 | I_kwDODunzps7i6IeO | 7,939 | datasets.load_from_disk progress bar optional manual control | {
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] | open | false | [] | null | 0 | 2026-01-13T03:19:13Z | 2026-01-13T03:19:13Z | null | null | NONE | [] | null | null | null | null | ### Feature request
This is tangentially related to [https://github.com/huggingface/datasets/issues/7918](https://github.com/huggingface/datasets/issues/7918).
When loading a dataset with > 16 files a progress bar is shown (unless stdout is redirected or [https://github.com/huggingface/datasets/pull/7919](https://git... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7938 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7938/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7938/comments | https://api.github.com/repos/huggingface/datasets/issues/7938/events | https://github.com/huggingface/datasets/pull/7938 | 3,804,486,642 | PR_kwDODunzps68tYX1 | 7,938 | Fix method to retrieve attributes from file object | {
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https://api.github.com/repos/huggingface/datasets/issues/7937 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7937/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7937/comments | https://api.github.com/repos/huggingface/datasets/issues/7937/events | https://github.com/huggingface/datasets/pull/7937 | 3,803,185,984 | PR_kwDODunzps68pBId | 7,937 | Fix duplicate log messages by disabling log propagation by default | {
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} | This PR fixes an issue where applications that configure logging see duplicate messages from `datasets`:
```python
import logging
logging.basicConfig(level=logging.WARNING)
from datasets.utils.logging import get_logger
get_logger("datasets.load").warning("This appears twice")
```
Outputs:
```
This appears ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7936 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7936/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7936/comments | https://api.github.com/repos/huggingface/datasets/issues/7936/events | https://github.com/huggingface/datasets/issues/7936 | 3,795,750,271 | I_kwDODunzps7iPo1_ | 7,936 | _add_retries_to_file_obj_read_method makes file_obj invalid for pyarrow | {
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I'm trying to use `load_dataset` to construct a dataset that read parquet data on HDFS streamingly, like
```python
ds = load_dataset(
"parquet",
data_files={
"train": "hdfs://xxx/train*.parquet",
"test": "hdfs://xxx/test*.parquet"
},
streaming=True,
)
```
I encounte... | {
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https://api.github.com/repos/huggingface/datasets/issues/7935 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7935/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7935/comments | https://api.github.com/repos/huggingface/datasets/issues/7935/events | https://github.com/huggingface/datasets/pull/7935 | 3,795,376,274 | PR_kwDODunzps68QDVY | 7,935 | Bug fix: Add HDFS hostname to protocol prefix | {
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} | For HDFS url with hostname like `hdfs://hostname/user/xxx`, the function `resolve_pattern` would drop the hostname, and outputs `hdfs:///user/xxx`. This may break later file operations by trying to connect to wrong HDFS cluster. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7934 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7934/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7934/comments | https://api.github.com/repos/huggingface/datasets/issues/7934/events | https://github.com/huggingface/datasets/issues/7934 | 3,792,642,445 | I_kwDODunzps7iDyGN | 7,934 | xPath cannot handle hdfs:///xxxx properly | {
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_as_str('hdfs:///xxxx') would return hdfs://xxxx. Removing one / and making the path invalid.
For the use case like
```
ds = load_dataset(
"parquet",
data_files={
"train": "hdfs:///user/path/to/data/train*.parquet",
},
streaming=True,
storage_options={
"host": ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7933 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7933/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7933/comments | https://api.github.com/repos/huggingface/datasets/issues/7933/events | https://github.com/huggingface/datasets/pull/7933 | 3,780,607,384 | PR_kwDODunzps67fNaP | 7,933 | feat: Add Apache TsFile format support | {
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} | # Add Apache TsFile format support
Adds support for loading `.tsfile` datasets. Closes #7922.
## What's TsFile?
[Apache TsFile](https://tsfile.apache.org/) is a columnar time-series format popular in IoT. The TsFile community requested this integration and offered to help maintain it.
## What I did
Creat... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7932 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7932/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7932/comments | https://api.github.com/repos/huggingface/datasets/issues/7932/events | https://github.com/huggingface/datasets/pull/7932 | 3,777,725,050 | PR_kwDODunzps67WqhL | 7,932 | Fix duplicate keyword conflict in load_dataset_builder | {
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} | Fixes #4910
This PR fixes a bug where passing the same keyword in builder_kwargs and
config_kwargs caused a TypeError in load_dataset_builder.
The kwargs are now merged safely so config_kwargs override builder_kwargs
without duplication. A regression test is added to prevent this from
happening again.
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https://api.github.com/repos/huggingface/datasets/issues/7931 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7931/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7931/comments | https://api.github.com/repos/huggingface/datasets/issues/7931/events | https://github.com/huggingface/datasets/issues/7931 | 3,777,662,799 | I_kwDODunzps7hKo9P | 7,931 | Enable CORS + HTTP Range support for browser partial reads on cas-bridge.xethub.hf.co (Parquet row-group access) | {
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## Summary
Browser-based data tools need Range requests to read Parquet efficiently (footer + selected row groups). Downloads from the Hub redirect to cas-bridge.xethub.hf.co (Xet bridge). The redirected host fails CORS preflight for Range/HEAD workflows, blocking partial reads. ([Hugging Face](htt... | {
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https://api.github.com/repos/huggingface/datasets/issues/7930 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7930/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7930/comments | https://api.github.com/repos/huggingface/datasets/issues/7930/events | https://github.com/huggingface/datasets/pull/7930 | 3,777,628,848 | PR_kwDODunzps67WYwc | 7,930 | Proposal: Protein 3D Structure Visualization for Dataset Viewer | {
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} | # Proposal: Protein 3D Structure Visualization for HuggingFace Dataset Viewer
## Executive Summary
This proposal outlines adding 3D protein structure visualization to the HuggingFace Dataset Viewer, enabling users to interactively view PDB and mmCIF molecular structures directly within the dataset preview interface.
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https://api.github.com/repos/huggingface/datasets/issues/7929 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7929/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7929/comments | https://api.github.com/repos/huggingface/datasets/issues/7929/events | https://github.com/huggingface/datasets/pull/7929 | 3,776,098,655 | PR_kwDODunzps67Rayd | 7,929 | Raise early for invalid `revision` in `load_dataset` | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | Solves https://github.com/huggingface/datasets/issues/7928
Raise early for invalid revisions
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https://api.github.com/repos/huggingface/datasets/issues/7928 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7928/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7928/comments | https://api.github.com/repos/huggingface/datasets/issues/7928/events | https://github.com/huggingface/datasets/issues/7928 | 3,775,842,185 | I_kwDODunzps7hDseJ | 7,928 | `load_dataset` `revision` param not respected when fetching from cache | {
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`datasets.load_dataset` `revision` semantics are a bit inconsistent when the dataset is not found on the huggingface hub. When fetching the latest cached version of the dataset, the `revision` argument is ignored, so long as any cached versions of the dataset already exist in the HF cache.
### St... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7927 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7927/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7927/comments | https://api.github.com/repos/huggingface/datasets/issues/7927/events | https://github.com/huggingface/datasets/issues/7927 | 3,775,302,438 | I_kwDODunzps7hBosm | 7,927 | Using Stateful Dataloader with Split Dataset By Node and DCP for DDP | {
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I am trying to determine how to save and load the Stateful Dataloader State with DCP and Split Dataset by Node for DDP.
Currently, I am running into the issue where I am receiving a slow resume.
```
Neither dataset nor iter(dataset) defines state_dict/load_state_dict so we are naively fast-forwar... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7926 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7926/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7926/comments | https://api.github.com/repos/huggingface/datasets/issues/7926/events | https://github.com/huggingface/datasets/pull/7926 | 3,773,696,472 | PR_kwDODunzps67Jxxz | 7,926 | Add lightweight PDB (Protein Data Bank) file support | {
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} | ## Summary
This PR adds support for loading PDB (Protein Data Bank) files with `load_dataset()`, following the **ImageFolder pattern** where **one row = one structure**.
Based on feedback from @lhoestq in #7930, this approach makes datasets more practical for ML workflows:
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https://api.github.com/repos/huggingface/datasets/issues/7925 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7925/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7925/comments | https://api.github.com/repos/huggingface/datasets/issues/7925/events | https://github.com/huggingface/datasets/pull/7925 | 3,773,577,850 | PR_kwDODunzps67JW3g | 7,925 | feat: Add mmCIF file support for macromolecular structures | {
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} | ## Summary
This PR adds support for loading mmCIF (macromolecular Crystallographic Information File) files with `load_dataset()`, following the **ImageFolder pattern** where **one row = one structure**.
Based on feedback from @lhoestq in #7930, this approach makes datasets more practical for ML workflows:
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https://api.github.com/repos/huggingface/datasets/issues/7924 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7924/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7924/comments | https://api.github.com/repos/huggingface/datasets/issues/7924/events | https://github.com/huggingface/datasets/pull/7924 | 3,773,509,771 | PR_kwDODunzps67JHNF | 7,924 | Add lightweight FASTQ file format support | {
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} | ## Summary
This PR adds support for loading FASTQ files directly with `load_dataset()`.
FASTQ is an extension of FASTA that includes quality scores for each base, widely used for storing output from high-throughput sequencing instruments.
### Key Features
- **Zero external dependencies** - Pure Python parser based o... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7923 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7923/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7923/comments | https://api.github.com/repos/huggingface/datasets/issues/7923/events | https://github.com/huggingface/datasets/pull/7923 | 3,773,472,998 | PR_kwDODunzps67I-y3 | 7,923 | feat(fasta): add lightweight FASTA file format support | {
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} | ## Summary
This PR adds support for loading FASTA files directly with `load_dataset()`, addressing feedback from #7851.
FASTA is a text-based format for representing nucleotide sequences (DNA/RNA) or peptide sequences (proteins), widely used in bioinformatics.
## Key Features
- **Zero external dependencies** - Uses... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7922 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7922/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7922/comments | https://api.github.com/repos/huggingface/datasets/issues/7922/events | https://github.com/huggingface/datasets/issues/7922 | 3,772,247,021 | I_kwDODunzps7g1-vt | 7,922 | Support Apache TsFile Datasets | {
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I would love to use Hugging Face datasets library to directly load datasets composed of .tsfile files, for example:
`ds = load_dataset("username/dataset-with-tsfile-files")`
This feature would allow researchers working on time-series tasks to seamlessly integrate datasets stored in the Apache TsF... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7921 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7921/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7921/comments | https://api.github.com/repos/huggingface/datasets/issues/7921/events | https://github.com/huggingface/datasets/pull/7921 | 3,766,879,197 | PR_kwDODunzps66zE_q | 7,921 | Add beginner-friendly quick installation verification tip in README | {
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This improves onboarding experience for first-time users and reduces confusion for beginners.
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https://api.github.com/repos/huggingface/datasets/issues/7920 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7920/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7920/comments | https://api.github.com/repos/huggingface/datasets/issues/7920/events | https://github.com/huggingface/datasets/pull/7920 | 3,766,070,566 | PR_kwDODunzps66wgLx | 7,920 | Add progress_format support for machine-readable progress output | {
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} | ## Summary
Adds support to , enabling machine-readable JSON progress output similar to [huggingface/tokenizers#1921](https://github.com/huggingface/tokenizers/pull/1921).
## Motivation
When using `datasets` in automated pipelines or UI applications, it's useful to emit machine-readable progress instead of ANSI prog... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7919 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7919/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7919/comments | https://api.github.com/repos/huggingface/datasets/issues/7919/events | https://github.com/huggingface/datasets/pull/7919 | 3,765,768,457 | PR_kwDODunzps66vmQC | 7,919 | Fix load_from_disk progress bar with redirected stdout | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | Fixes #7918
## Problem
When using `load_from_disk()` with `contextlib.redirect_stdout()`, the progress bar was not showing even for datasets with >16 files.
## Root Cause
The `disable` parameter was set to `None` which triggers TTY auto-detection. This fails when stdout is redirected, causing the progress ba... | {
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https://api.github.com/repos/huggingface/datasets/issues/7918 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7918/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7918/comments | https://api.github.com/repos/huggingface/datasets/issues/7918/events | https://github.com/huggingface/datasets/issues/7918 | 3,765,489,462 | I_kwDODunzps7gcM82 | 7,918 | datasets.load_from_disk doesn't show progress bar | {
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This is the inverse of the bug at [https://github.com/huggingface/datasets/issues/7030](https://github.com/huggingface/datasets/issues/7030), i.e. that `datasets.load_from_disk(path)` displays no progress bar. My dataset has > 16 files in it.
I am redirecting stdout as I capture the log, could th... | {
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https://api.github.com/repos/huggingface/datasets/issues/7917 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7917/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7917/comments | https://api.github.com/repos/huggingface/datasets/issues/7917/events | https://github.com/huggingface/datasets/issues/7917 | 3,764,913,807 | I_kwDODunzps7gaAaP | 7,917 | IterableDataset supports automatic sharding | {
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Added sharding function support to the streaming IterableDataset, allowing users to adjust the number of shards according to their training resources. For example:
```
dataset = load_dataset(*, stream=True)
dataset = dataset.shard(num_shards=num_shards, num_samples=num_samples) #We may need to know... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7916 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7916/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7916/comments | https://api.github.com/repos/huggingface/datasets/issues/7916/events | https://github.com/huggingface/datasets/issues/7916 | 3,764,901,707 | I_kwDODunzps7gZ9dL | 7,916 | No description provided. | {
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https://api.github.com/repos/huggingface/datasets/issues/7915 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7915/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7915/comments | https://api.github.com/repos/huggingface/datasets/issues/7915/events | https://github.com/huggingface/datasets/issues/7915 | 3,762,042,396 | I_kwDODunzps7gPDYc | 7,915 | GDPval dataset Word docs corrupted | {
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### Root Causes
1. **Corrupted settings.xml**: The `word/settings.xml` file uses incorrect namespace pre... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7914 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7914/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7914/comments | https://api.github.com/repos/huggingface/datasets/issues/7914/events | https://github.com/huggingface/datasets/issues/7914 | 3,760,894,100 | I_kwDODunzps7gKrCU | 7,914 | [ROCm] please install 'torchcodec' | {
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Datasets library is widely used by many Python packages. Naturally, it is a requirement on many platforms. This includes vLLM for ROCm. During audio dataset tests, there is an exception triggered:
```python
def decode_example(
self, value: dict, token_per_repo_id: Optional[dict[str, Un... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7913 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7913/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7913/comments | https://api.github.com/repos/huggingface/datasets/issues/7913/events | https://github.com/huggingface/datasets/pull/7913 | 3,758,884,376 | PR_kwDODunzps66aEsF | 7,913 | Add lance format support | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | Add lance format as one of the `packaged_modules`.
```py
import datasets
ds = datasets.load_dataset("org/lance_repo", split="train")
# Or
ds = datasets.load_dataset("./local/data.lance")
``` | {
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https://api.github.com/repos/huggingface/datasets/issues/7912 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7912/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7912/comments | https://api.github.com/repos/huggingface/datasets/issues/7912/events | https://github.com/huggingface/datasets/pull/7912 | 3,755,023,829 | PR_kwDODunzps66NQzG | 7,912 | fix low but large example indexerror | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | Fixes #7911.
This PR simply implements the approach outlined in the corresponding issue, that if we have large examples, the number of shards should never be more than the number of samples. This is an absolute edge case, but can happen for image data. | {
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https://api.github.com/repos/huggingface/datasets/issues/7911 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7911/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7911/comments | https://api.github.com/repos/huggingface/datasets/issues/7911/events | https://github.com/huggingface/datasets/issues/7911 | 3,753,447,559 | I_kwDODunzps7fuRCH | 7,911 | IndexError when saving few large examples to disk | {
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I ran into this issue when processing a file (900MB) with just one example but simplified for a quicker reproducer below. The problem is that, if `num_shards` is not explicitly set, we calculate it manually using https://github.com/huggingface/datasets/blob/main/src/datasets/utils/py_utils.py#L96 ... | {
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https://api.github.com/repos/huggingface/datasets/issues/7910 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7910/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7910/comments | https://api.github.com/repos/huggingface/datasets/issues/7910/events | https://github.com/huggingface/datasets/pull/7910 | 3,749,894,414 | PR_kwDODunzps658oGv | 7,910 | Enhance cast_column() with cast_kwargs parameter | {
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] | open | false | [] | null | 0 | 2025-12-20T10:02:07Z | 2025-12-20T10:28:01Z | null | null | NONE | [] | null | null | null | null | ### Feature request
expose `cast(**cast_kwargs)` to `cast_column()`
https://github.com/huggingface/datasets/blob/0feb65dd8733191dd2d1e74215b422fc5939a56a/src/datasets/arrow_dataset.py#L2205
### Motivation
`cast_column()` wraps `cast()` function without exposing any `cast()` args. For large multi-modal datasets, e.g... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7906 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7906/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7906/comments | https://api.github.com/repos/huggingface/datasets/issues/7906/events | https://github.com/huggingface/datasets/pull/7906 | 3,747,764,992 | PR_kwDODunzps651jiI | 7,906 | Don't save original_shard_lengths by default for backward compat | {
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but let users enable it with `datasets.config.SAVE_ORIGINAL_SHARD_LENGTHS = True`
this is useful for the Dataset Viewer to know where each row comes from after converting to parquet | {
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https://api.github.com/repos/huggingface/datasets/issues/7905 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7905/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7905/comments | https://api.github.com/repos/huggingface/datasets/issues/7905/events | https://github.com/huggingface/datasets/issues/7905 | 3,734,233,245 | I_kwDODunzps7ek-Cd | 7,905 | Unbounded network usage when opening Data Studio | {
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Opening the Data Studio tab on a dataset page triggers continuous and unbounded network traffic. This issue occurs across multiple browsers and continues even without user interaction.
### Steps to reproduce the bug
https://huggingface.co/datasets/slone/nllb-200-10M-sample/viewer
### Expected... | {
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https://api.github.com/repos/huggingface/datasets/issues/7904 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7904/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7904/comments | https://api.github.com/repos/huggingface/datasets/issues/7904/events | https://github.com/huggingface/datasets/issues/7904 | 3,727,978,498 | I_kwDODunzps7eNHAC | 7,904 | Request: Review pending neuroimaging PRs (#7886 BIDS loader, #7887 lazy loading) | {
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I'm building production neuroimaging pipelines that depend on `datasets` and would benefit greatly from two pending PRs being reviewed/merged.
## Pending PRs
| PR | Description | Status | Open Since |
|----|-------------|--------|------------|
| [#7886](https://github.com/huggingface/datasets/pull/7886) |... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7903 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7903/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7903/comments | https://api.github.com/repos/huggingface/datasets/issues/7903/events | https://github.com/huggingface/datasets/pull/7903 | 3,723,395,305 | PR_kwDODunzps64kO0d | 7,903 | Docs: add minimal usage example to dataset card guidelines | {
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https://api.github.com/repos/huggingface/datasets/issues/7902 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7902/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7902/comments | https://api.github.com/repos/huggingface/datasets/issues/7902/events | https://github.com/huggingface/datasets/issues/7902 | 3,723,281,150 | I_kwDODunzps7d7ML- | 7,902 | The child process retrieves the dataset directly from the main process instead of executing `memory_mapped_arrow_table_from_file`. | {
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] | open | false | [] | null | 1 | 2025-12-12T12:37:44Z | 2025-12-15T11:48:16Z | null | null | NONE | [] | null | null | null | null | ### Feature request
The child process retrieves the dataset directly from the main process instead of executing `memory_mapped_arrow_table_from_file`.
### Motivation
Because my local disk space is insufficient, I can only store a dataset on a remote Ceph server and process it using datasets.
I used the data-juicer[h... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7901 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7901/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7901/comments | https://api.github.com/repos/huggingface/datasets/issues/7901/events | https://github.com/huggingface/datasets/issues/7901 | 3,722,243,543 | I_kwDODunzps7d3O3X | 7,901 | ShuffledDataSourcesArrowExamplesIterable cannot properly resume from checkpoint | {
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ShuffledDataSourcesArrowExamplesIterable cannot properly resume from checkpoint
### Steps to reproduce the bug
1. The reproducible code is as follows：
```
from datasets import Dataset, concatenate_datasets, interleave_datasets
ds = Dataset.from_dict({"a": range(12)}).to_iterable_dataset(num_sha... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7900 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7900/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7900/comments | https://api.github.com/repos/huggingface/datasets/issues/7900/events | https://github.com/huggingface/datasets/issues/7900 | 3,711,751,590 | I_kwDODunzps7dPNWm | 7,900 | `Permission denied` when sharing cache between users | {
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We want to use `datasets` and `transformers` on a shared machine. Right now, each user has a separate HF_HOME in their home directory. To reduce duplicates of the datasets, we want to share that cache. While experimenting, we are running into `Permission denied` errors.
It looks like this was sup... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7899 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7899/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7899/comments | https://api.github.com/repos/huggingface/datasets/issues/7899/events | https://github.com/huggingface/datasets/pull/7899 | 3,707,063,236 | PR_kwDODunzps63t1LS | 7,899 | Add inspect_ai eval logs support | {
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They are actually ZIP files according to the source code at https://github.com/UKGovernmentBEIS/inspect_ai/blob/main/src/inspect_ai/log/_log.py
Unfortunately their format can't be converted to Parquet, so I had to JSON-encode all the nested values
```python
ds = loa... | {
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https://api.github.com/repos/huggingface/datasets/issues/7898 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7898/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7898/comments | https://api.github.com/repos/huggingface/datasets/issues/7898/events | https://github.com/huggingface/datasets/pull/7898 | 3,698,376,429 | PR_kwDODunzps63Q9BO | 7,898 | docs: making PyPi to PyPI ensuring no spelling errors | {
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} | This PR adds a short clarification in the README section wherein PyPI the python package was mistakenly typed as PyPi which i have fixed
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https://api.github.com/repos/huggingface/datasets/issues/7897 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7897/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7897/comments | https://api.github.com/repos/huggingface/datasets/issues/7897/events | https://github.com/huggingface/datasets/pull/7897 | 3,691,300,022 | PR_kwDODunzps624-k2 | 7,897 | Save input shard lengths | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/... | will be useful for the Viewer, to know what (original) shard each row belongs to
cc @cfahlgren1
next step is use it in Dataset Viewer and expose an API that returns the file containing the row at rowId
(took the opportunity to remove unusued code) | {
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https://api.github.com/repos/huggingface/datasets/issues/7896 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7896/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7896/comments | https://api.github.com/repos/huggingface/datasets/issues/7896/events | https://github.com/huggingface/datasets/pull/7896 | 3,688,480,675 | PR_kwDODunzps62vZtn | 7,896 | fix: force contiguous copy for sliced list arrays in embed_array_storage | {
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} | ## Summary
Fixes SIGKILL crash in `embed_array_storage` when processing sliced/sharded datasets with nested types like `Sequence(Nifti())` or `Sequence(Image())`.
**Root cause**: When `ds.shard()` or `ds.select()` creates a sliced view, `array.values` on a sliced `ListArray` returns values with internal offset refere... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7895 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7895/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7895/comments | https://api.github.com/repos/huggingface/datasets/issues/7895/events | https://github.com/huggingface/datasets/pull/7895 | 3,688,479,825 | PR_kwDODunzps62vZik | 7,895 | fix: use temp files in push_to_hub to prevent OOM on large datasets | {
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} | ## Summary
Fixes memory accumulation in `_push_parquet_shards_to_hub_single` that causes OOM when uploading large datasets with many shards.
**Root cause**: The current implementation stores ALL parquet shard bytes in memory via `BytesIO`, accumulating in the `additions` list. For N shards of ~300MB each, this requir... | {
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https://api.github.com/repos/huggingface/datasets/issues/7894 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7894/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7894/comments | https://api.github.com/repos/huggingface/datasets/issues/7894/events | https://github.com/huggingface/datasets/issues/7894 | 3,688,455,006 | I_kwDODunzps7b2Vte | 7,894 | embed_table_storage crashes (SIGKILL) on sharded datasets with Sequence() nested types | {
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`embed_table_storage` crashes with SIGKILL (exit code 137) when processing sharded datasets containing `Sequence()` nested types like `Sequence(Nifti())`. Likely affects `Sequence(Image())` and `Sequence(Audio())` as well.
The crash occurs at the C++ level with no Python traceback.
### Related Issues
- #... | null | {
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