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https://api.github.com/repos/huggingface/datasets/issues/7998 | 7,998 | [doc] Inconsistant ENV VAR Name for Progress Bar Toggle | Code uses env var name `HF_DATASETS_DISABLE_PROGRESS_BARS`.
https://github.com/huggingface/datasets/blob/025593f2f0722f31fc136e0ae45da4ff44d4416a/src/datasets/config.py#L221-L226
Docstrings and warnings report env var name `HF_DATASETS_DISABLE_PROGRESS_BAR` without the ending `S`.
https://github.com/huggingface/data... | closed | 2026-02-08T12:16:44 | https://api.github.com/repos/huggingface/datasets/issues/7998/comments | null | false | [doc] Inconsistant ENV VAR Name for Progress Bar Toggle
Code uses env var name `HF_DATASETS_DISABLE_PROGRESS_BARS`.
https://github.com/huggingface/datasets/blob/025593f2f0722f31fc136e0ae45da4ff44d4416a/src/datasets/config.py#L221-L226
Docstrings and warnings report env var name `HF_DATASETS_DISABLE_PROGRESS_BAR` with... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7997 | 7,997 | fix: Dataset.map writer initialization when first examples return None | Fixes #7990
## Summary
When Dataset.map is called and the first examples processed return None, the writer is never properly initialized, causing a ValueError.
## Changes
- Modified _map_single to initialize the writer early if the first batch returns empty results
- Ensures writer is set before the first call to w... | closed | 2026-02-08T07:02:00 | https://api.github.com/repos/huggingface/datasets/issues/7997/comments | {
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} | true | fix: Dataset.map writer initialization when first examples return None
Fixes #7990
## Summary
When Dataset.map is called and the first examples processed return None, the writer is never properly initialized, causing a ValueError.
## Changes
- Modified _map_single to initialize the writer early if the first batch r... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7996 | 7,996 | Fix Dataset.map writer initialization when early examples return None | ## Summary
Fixes #7990
This PR fixes a bug in `Dataset.map()` where the writer initialization was incorrectly tied to the index being 0, causing crashes when the map function returns `None` for the first few examples and later returns a dict.
### Changes
- **Non-batched mode** (line 3676): Changed from `if i == 0:... | open | 2026-02-08T05:52:45 | https://api.github.com/repos/huggingface/datasets/issues/7996/comments | {
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} | true | Fix Dataset.map writer initialization when early examples return None
## Summary
Fixes #7990
This PR fixes a bug in `Dataset.map()` where the writer initialization was incorrectly tied to the index being 0, causing crashes when the map function returns `None` for the first few examples and later returns a dict.
###... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7995 | 7,995 | Bump fsspec upper bound to 2026.2.0 (fixes #7994) | Fixes #7994 and e.g. “Bumps fsspec upper bound so the latest version can be used; CI will validate compatibility.” | closed | 2026-02-08T05:43:15 | https://api.github.com/repos/huggingface/datasets/issues/7995/comments | {
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"merged_at": "2026-02-16T15:28... | true | Bump fsspec upper bound to 2026.2.0 (fixes #7994)
Fixes #7994 and e.g. “Bumps fsspec upper bound so the latest version can be used; CI will validate compatibility.” | [] |
https://api.github.com/repos/huggingface/datasets/issues/7994 | 7,994 | Bump fsspec upper bound constraint | Would it be possible to bump fsspec upper bound to the latest (2026.2.0)?
I saw you had some API compat issues in the past (https://github.com/huggingface/datasets/issues/7326) and I understand the need for an upper bound.
But I wonder if you think your CI and tests are a good proxy to catch fsspec API breakage? If t... | closed | 2026-02-06T11:37:54 | https://api.github.com/repos/huggingface/datasets/issues/7994/comments | null | false | Bump fsspec upper bound constraint
Would it be possible to bump fsspec upper bound to the latest (2026.2.0)?
I saw you had some API compat issues in the past (https://github.com/huggingface/datasets/issues/7326) and I understand the need for an upper bound.
But I wonder if you think your CI and tests are a good proxy... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7993 | 7,993 | :sparkles: Add 'SparseCsv' builder and 'sparse_collate_fn' for efficient high-dimensional sparse data loading | 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... | open | 2026-02-04T21:59:39 | https://api.github.com/repos/huggingface/datasets/issues/7993/comments | {
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"merged_at": null
} | true | :sparkles: Add 'SparseCsv' builder and 'sparse_collate_fn' for efficient high-dimensional sparse data loading
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 to... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7992 | 7,992 | Add `IterableDataset.reshard()` | 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
})
```
... | closed | 2026-02-04T18:24:41 | https://api.github.com/repos/huggingface/datasets/issues/7992/comments | {
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"merged_at": "2026-02-04T18:55... | true | Add `IterableDataset.reshard()`
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'],
... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7991 | 7,991 | list(api.list_datasets()) giving jsondecode error | 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... | closed | 2026-02-04T14:39:46 | https://api.github.com/repos/huggingface/datasets/issues/7991/comments | null | false | list(api.list_datasets()) giving jsondecode error
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 mo... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7990 | 7,990 | Dataset.map crashes when first examples return None and later examples return dict — writer not initialized | ### 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... | open | 2026-02-04T10:43:20 | https://api.github.com/repos/huggingface/datasets/issues/7990/comments | null | false | Dataset.map crashes when first examples return None and later examples return dict — writer not initialized
### 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`... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7989 | 7,989 | Remove pre-release workaround in CI for `transformers v5` and `huggingface_hub v1` | 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. | closed | 2026-02-04T09:42:49 | https://api.github.com/repos/huggingface/datasets/issues/7989/comments | {
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"merged_at": "2026-02-04T15:20... | true | Remove pre-release workaround in CI for `transformers v5` and `huggingface_hub v1`
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/huggin... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7988 | 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" | ### 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... | closed | 2026-02-04T08:42:23 | https://api.github.com/repos/huggingface/datasets/issues/7988/comments | null | false | `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"
### Describe the bug
# Repro
These two conditions seem to consistently reproduce the issue:
- function passed to `Dataset.map()` explicitly... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7987 | 7,987 | Fix index out of bound error with original_shard_lengths. | 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. | closed | 2026-02-04T05:20:43 | https://api.github.com/repos/huggingface/datasets/issues/7987/comments | {
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"patch_url": "https://github.com/huggingface/datasets/pull/7987.patch",
"merged_at": null
} | true | Fix index out of bound error with original_shard_lengths.
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... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7986 | 7,986 | `Dataset.map()` causes cache miss/fingerprint change when closure captures self containing non-deterministic state. | ### Describe the bug
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... | open | 2026-02-03T19:16:49 | https://api.github.com/repos/huggingface/datasets/issues/7986/comments | null | false | `Dataset.map()` causes cache miss/fingerprint change when closure captures self containing non-deterministic state.
### Describe the bug
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 configurat... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7985 | 7,985 | Remove unused data files optims | 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 | closed | 2026-02-03T17:58:30 | https://api.github.com/repos/huggingface/datasets/issues/7985/comments | {
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"merged_at": "2026-02-03T18:30... | true | Remove unused data files optims
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... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7984 | 7,984 | Data | null | open | 2026-02-03T14:01:48 | https://api.github.com/repos/huggingface/datasets/issues/7984/comments | null | false | Data
| [] |
https://api.github.com/repos/huggingface/datasets/issues/7983 | 7,983 | Add Zarr streaming support (POC) | 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). | open | 2026-02-03T00:06:46 | https://api.github.com/repos/huggingface/datasets/issues/7983/comments | {
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"merged_at": null
} | true | Add Zarr streaming support (POC)
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). | [] |
https://api.github.com/repos/huggingface/datasets/issues/7982 | 7,982 | Fix unstable tokenizer fingerprinting (enables map cache reuse) | 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... | closed | 2026-02-02T23:34:51 | https://api.github.com/repos/huggingface/datasets/issues/7982/comments | {
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"merged_at": "2026-03-09T18:30... | true | Fix unstable tokenizer fingerprinting (enables map cache reuse)
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 unst... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7981 | 7,981 | Support pandas 3 | null | closed | 2026-02-02T17:16:37 | https://api.github.com/repos/huggingface/datasets/issues/7981/comments | {
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"merged_at": "2026-02-02T17:34... | true | Support pandas 3
| [] |
https://api.github.com/repos/huggingface/datasets/issues/7980 | 7,980 | Drop python 3.9 | EOL was a few months ago, and transformers doesn't support 3.9 anymore | closed | 2026-02-02T16:13:04 | https://api.github.com/repos/huggingface/datasets/issues/7980/comments | {
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"merged_at": "2026-02-02T16:26... | true | Drop python 3.9
EOL was a few months ago, and transformers doesn't support 3.9 anymore | [] |
https://api.github.com/repos/huggingface/datasets/issues/7979 | 7,979 | Use temp files in push_to_hub to save memory | write parquet data to temp files on disk prior to upload to save memory
this is enabled for for datasets loaded using streaming=True/False | closed | 2026-02-02T16:10:38 | https://api.github.com/repos/huggingface/datasets/issues/7979/comments | {
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"merged_at": "2026-02-02T16:26... | true | Use temp files in push_to_hub to save memory
write parquet data to temp files on disk prior to upload to save memory
this is enabled for for datasets loaded using streaming=True/False | [] |
https://api.github.com/repos/huggingface/datasets/issues/7978 | 7,978 | Fix 4910 kwargs | 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... | open | 2026-01-31T18:36:32 | https://api.github.com/repos/huggingface/datasets/issues/7978/comments | {
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"merged_at": null
} | true | Fix 4910 kwargs
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
... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7977 | 7,977 | Updated get_dataset_config_names returning default in offline mode | When a dataset is cached and accessed in offline mode, get_dataset_config_names was returning default instead of the actual cached config names. This happened because CachedDatasetModuleFactory.get_module returned a DatasetModule without builder_configs_parameters, causing the fallback to default in get_dataset_config_... | closed | 2026-01-31T12:56:21 | https://api.github.com/repos/huggingface/datasets/issues/7977/comments | {
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"merged_at": null
} | true | Updated get_dataset_config_names returning default in offline mode
When a dataset is cached and accessed in offline mode, get_dataset_config_names was returning default instead of the actual cached config names. This happened because CachedDatasetModuleFactory.get_module returned a DatasetModule without builder_config... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7976 | 7,976 | Write image/audio/video blobs as is in parquet (PLAIN) | following #7971 | closed | 2026-01-31T11:49:39 | https://api.github.com/repos/huggingface/datasets/issues/7976/comments | {
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"merged_at": "2026-01-31T11:50... | true | Write image/audio/video blobs as is in parquet (PLAIN)
following #7971 | [] |
https://api.github.com/repos/huggingface/datasets/issues/7975 | 7,975 | Docs: add Dataset.from_dict example | 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. | open | 2026-01-31T07:00:43 | https://api.github.com/repos/huggingface/datasets/issues/7975/comments | {
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"merged_at": null
} | true | Docs: add Dataset.from_dict example
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. | [] |
https://api.github.com/repos/huggingface/datasets/issues/7974 | 7,974 | Fix duplicate kwargs in load_dataset_builder | 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,... | closed | 2026-01-31T07:00:39 | https://api.github.com/repos/huggingface/datasets/issues/7974/comments | {
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"merged_at": null
} | true | Fix duplicate kwargs in load_dataset_builder
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 argumen... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7973 | 7,973 | Fix resolve_pattern for local symlinked files | 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... | open | 2026-01-31T06:04:51 | https://api.github.com/repos/huggingface/datasets/issues/7973/comments | {
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"merged_at": null
} | true | Fix resolve_pattern for local symlinked files
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 l... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7972 | 7,972 | feat: implement iter_arrow for skip, take and step iterables | 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:... | open | 2026-01-30T05:47:13 | https://api.github.com/repos/huggingface/datasets/issues/7972/comments | {
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"patch_url": "https://github.com/huggingface/datasets/pull/7972.patch",
"merged_at": null
} | true | feat: implement iter_arrow for skip, take and step iterables
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/itera... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7971 | 7,971 | push_to_hub() for videos | 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... | closed | 2026-01-29T18:16:58 | https://api.github.com/repos/huggingface/datasets/issues/7971/comments | {
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"merged_at": "2026-01-29T18:56... | true | push_to_hub() for videos
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... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7970 | 7,970 | cast_column(..., Audio) fails with load_dataset("csv",) | ### 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 ... | open | 2026-01-29T09:33:35 | https://api.github.com/repos/huggingface/datasets/issues/7970/comments | null | false | cast_column(..., Audio) fails with load_dataset("csv",)
### 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 th... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7969 | 7,969 | Count examples in lance | ```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}
``` | closed | 2026-01-28T12:00:37 | https://api.github.com/repos/huggingface/datasets/issues/7969/comments | {
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"merged_at": "2026-01-28T13:00... | true | Count examples in lance
```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': 93... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7968 | 7,968 | Potential conflicting type checks and dead code in `/src/datasets/table.py` | When statically analyzing and manually reviewing the code, I noticed a potential logic conflicting in `/src/datasets/table.py` as follows:
```
def to_blocks(table: Union[pa.Table, Table]) -> list[list[TableBlock]]:
if isinstance(table, pa.Table):
return [[InMemoryTable(table)]]
elif isinstance(ta... | closed | 2026-01-28T11:34:53 | https://api.github.com/repos/huggingface/datasets/issues/7968/comments | null | false | Potential conflicting type checks and dead code in `/src/datasets/table.py`
When statically analyzing and manually reviewing the code, I noticed a potential logic conflicting in `/src/datasets/table.py` as follows:
```
def to_blocks(table: Union[pa.Table, Table]) -> list[list[TableBlock]]:
if isinstance(table, p... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7967 | 7,967 | Issue 7756 Fix - multiprocessing hang issue with start method check | 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 | open | 2026-01-28T05:02:20 | https://api.github.com/repos/huggingface/datasets/issues/7967/comments | {
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"patch_url": "https://github.com/huggingface/datasets/pull/7967.patch",
"merged_at": null
} | true | Issue 7756 Fix - multiprocessing hang issue with start method check
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 | [] |
https://api.github.com/repos/huggingface/datasets/issues/7966 | 7,966 | Infer types from lance blobs | 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... | closed | 2026-01-27T18:00:25 | https://api.github.com/repos/huggingface/datasets/issues/7966/comments | {
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"patch_url": "https://github.com/huggingface/datasets/pull/7966.patch",
"merged_at": "2026-01-28T13:02... | true | Infer types from lance blobs
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(... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7965 | 7,965 | `huggingface_hub.errors.HfHubHTTPError: 404 Client Error: Not Found for url` when fetching a dataset with `datasets.load_dataset` | 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 ... | closed | 2026-01-27T02:20:31 | https://api.github.com/repos/huggingface/datasets/issues/7965/comments | null | false | `huggingface_hub.errors.HfHubHTTPError: 404 Client Error: Not Found for url` when fetching a dataset with `datasets.load_dataset`
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_sourc... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7964 | 7,964 | handle blob lance | following #7913 | closed | 2026-01-26T22:56:24 | https://api.github.com/repos/huggingface/datasets/issues/7964/comments | {
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"merged_at": "2026-01-26T22:56... | true | handle blob lance
following #7913 | [] |
https://api.github.com/repos/huggingface/datasets/issues/7963 | 7,963 | Support null in json string cols | fix for https://huggingface.co/datasets/arcprize/arc_agi_v2_public_eval | closed | 2026-01-26T17:31:55 | https://api.github.com/repos/huggingface/datasets/issues/7963/comments | {
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"merged_at": "2026-01-26T17:48... | true | Support null in json string cols
fix for https://huggingface.co/datasets/arcprize/arc_agi_v2_public_eval | [] |
https://api.github.com/repos/huggingface/datasets/issues/7962 | 7,962 | Use Sequence instead of list in Dataset.from_parquet type hints | 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.
| open | 2026-01-26T17:01:47 | https://api.github.com/repos/huggingface/datasets/issues/7962/comments | {
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"merged_at": null
} | true | Use Sequence instead of list in Dataset.from_parquet type hints
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.
| [] |
https://api.github.com/repos/huggingface/datasets/issues/7961 | 7,961 | Revert "feat: avoid some copies in torch formatter (#7787)" | 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) | closed | 2026-01-23T15:13:01 | https://api.github.com/repos/huggingface/datasets/issues/7961/comments | {
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"merged_at": "2026-01-23T15:15... | true | Revert "feat: avoid some copies in torch formatter (#7787)"
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 r... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7960 | 7,960 | docs: fix grammar and add type hints in splits.py | This PR improves the documentation in
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. | closed | 2026-01-23T14:05:12 | https://api.github.com/repos/huggingface/datasets/issues/7960/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7960",
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"patch_url": "https://github.com/huggingface/datasets/pull/7960.patch",
"merged_at": "2026-01-23T16:04... | true | docs: fix grammar and add type hints in splits.py
This PR improves the documentation in
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. | [] |
https://api.github.com/repos/huggingface/datasets/issues/7959 | 7,959 | docs: fix typo in arrow_dataset.py comment | null | closed | 2026-01-23T14:00:08 | https://api.github.com/repos/huggingface/datasets/issues/7959/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7959",
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"merged_at": null
} | true | docs: fix typo in arrow_dataset.py comment
| [] |
https://api.github.com/repos/huggingface/datasets/issues/7958 | 7,958 | [CUDA Tensors Not working in ~v4.5.0] set_format(type="torch", device="cuda") returns cpu | ### 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... | closed | 2026-01-23T12:06:48 | https://api.github.com/repos/huggingface/datasets/issues/7958/comments | null | false | [CUDA Tensors Not working in ~v4.5.0] set_format(type="torch", device="cuda") returns cpu
### 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... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7957 | 7,957 | Fix all exhausted without replacement | 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... | closed | 2026-01-21T18:47:32 | https://api.github.com/repos/huggingface/datasets/issues/7957/comments | {
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"merged_at": null
} | true | Fix all exhausted without replacement
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 exh... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7956 | 7,956 | Is the 10k files / folder limit a hard limit for a dataset repo? | ### 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... | open | 2026-01-21T16:37:38 | https://api.github.com/repos/huggingface/datasets/issues/7956/comments | null | false | Is the 10k files / folder limit a hard limit for a dataset repo?
### 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... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7955 | 7,955 | Fix interleave_datasets with all_exhausted_without_replacement strategy | 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... | closed | 2026-01-21T08:10:45 | https://api.github.com/repos/huggingface/datasets/issues/7955/comments | {
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"merged_at": "2026-01-23T16:08... | true | Fix interleave_datasets with all_exhausted_without_replacement strategy
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... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7954 | 7,954 | all_exhausted_without_replacement working same as first_exhausted | ### 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... | closed | 2026-01-21T07:50:31 | https://api.github.com/repos/huggingface/datasets/issues/7954/comments | null | false | all_exhausted_without_replacement working same as first_exhausted
### 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... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7953 | 7,953 | #5354: replace list with Sequence in from_parquet type hints | \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.
| open | 2026-01-19T20:24:10 | https://api.github.com/repos/huggingface/datasets/issues/7953/comments | {
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"merged_at": null
} | true | #5354: replace list with Sequence in from_parquet type hints
\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.
| [] |
https://api.github.com/repos/huggingface/datasets/issues/7952 | 7,952 | Fix #5354: replace list with Sequence in from_parquet type hints | 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.
| closed | 2026-01-19T19:57:55 | https://api.github.com/repos/huggingface/datasets/issues/7952/comments | {
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"merged_at": null
} | true | Fix #5354: replace list with Sequence in from_parquet type hints
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.
| [] |
https://api.github.com/repos/huggingface/datasets/issues/7951 | 7,951 | feat: Add GenBank file format support for biological sequence data | ## 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... | open | 2026-01-19T01:59:44 | https://api.github.com/repos/huggingface/datasets/issues/7951/comments | {
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"merged_at": null
} | true | feat: Add GenBank file format support for biological sequence data
## 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
- Regist... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7950 | 7,950 | Add examples for Lance datasets | ## 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... | closed | 2026-01-17T19:33:31 | https://api.github.com/repos/huggingface/datasets/issues/7950/comments | {
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"merged_at": "2026-01-23T16:16... | true | Add examples for Lance datasets
## 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
... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7949 | 7,949 | docs: clarify documentation build instructions | docs: clarify documentation build instructions | open | 2026-01-17T06:24:24 | https://api.github.com/repos/huggingface/datasets/issues/7949/comments | {
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"merged_at": null
} | true | docs: clarify documentation build instructions
docs: clarify documentation build instructions | [] |
https://api.github.com/repos/huggingface/datasets/issues/7948 | 7,948 | json: add optional return_file_name parameter | 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... | open | 2026-01-17T05:39:43 | https://api.github.com/repos/huggingface/datasets/issues/7948/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7948",
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"patch_url": "https://github.com/huggingface/datasets/pull/7948.patch",
"merged_at": null
} | true | json: add optional return_file_name parameter
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 f... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7947 | 7,947 | MMLU get_dataset_config_names provides different lists of subsets in online and offline modes | ### 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... | open | 2026-01-16T19:20:08 | https://api.github.com/repos/huggingface/datasets/issues/7947/comments | null | false | MMLU get_dataset_config_names provides different lists of subsets in online and offline modes
### 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 r... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7946 | 7,946 | Question: Is there a faster way to push_to_hub for large image datasets? | # Question: Is there a faster way to `push_to_hub` for large image datasets? Or could this approach be integrated?
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... | open | 2026-01-15T13:54:37 | https://api.github.com/repos/huggingface/datasets/issues/7946/comments | null | false | Question: Is there a faster way to push_to_hub for large image datasets?
# Question: Is there a faster way to `push_to_hub` for large image datasets? Or could this approach be integrated?
Hi! I frequently work with large image datasets (100k-300k+ samples) and found that `dataset.push_to_hub()` can be quite slow.
cc ... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7945 | 7,945 | set dev version | null | closed | 2026-01-14T18:34:50 | https://api.github.com/repos/huggingface/datasets/issues/7945/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7945",
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"merged_at": "2026-01-14T18:34... | true | set dev version
| [] |
https://api.github.com/repos/huggingface/datasets/issues/7944 | 7,944 | Release: 4.5.0 | null | closed | 2026-01-14T18:27:17 | https://api.github.com/repos/huggingface/datasets/issues/7944/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7944",
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"merged_at": "2026-01-14T18:28... | true | Release: 4.5.0
| [] |
https://api.github.com/repos/huggingface/datasets/issues/7943 | 7,943 | Add _generate_shards | 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(... | closed | 2026-01-13T17:10:03 | https://api.github.com/repos/huggingface/datasets/issues/7943/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7943",
"html_url": "https://github.com/huggingface/datasets/pull/7943",
"diff_url": "https://github.com/huggingface/datasets/pull/7943.diff",
"patch_url": "https://github.com/huggingface/datasets/pull/7943.patch",
"merged_at": "2026-01-14T16:46... | true | Add _generate_shards
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(d... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7942 | 7,942 | add _OverridableIOWrapper | fix https://github.com/huggingface/datasets/issues/7936 | closed | 2026-01-13T13:37:09 | https://api.github.com/repos/huggingface/datasets/issues/7942/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7942",
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"patch_url": "https://github.com/huggingface/datasets/pull/7942.patch",
"merged_at": "2026-01-13T13:38... | true | add _OverridableIOWrapper
fix https://github.com/huggingface/datasets/issues/7936 | [] |
https://api.github.com/repos/huggingface/datasets/issues/7941 | 7,941 | Remove Python 3.7 and Python 2 code paths from _dill.py | 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. | open | 2026-01-13T08:44:31 | https://api.github.com/repos/huggingface/datasets/issues/7941/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7941",
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"patch_url": "https://github.com/huggingface/datasets/pull/7941.patch",
"merged_at": null
} | true | Remove Python 3.7 and Python 2 code paths from _dill.py
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. | [] |
https://api.github.com/repos/huggingface/datasets/issues/7940 | 7,940 | Improve readability and documentation of indexing integration tests | ### 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... | open | 2026-01-13T06:42:07 | https://api.github.com/repos/huggingface/datasets/issues/7940/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7940",
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"patch_url": "https://github.com/huggingface/datasets/pull/7940.patch",
"merged_at": null
} | true | Improve readability and documentation of indexing integration tests
### 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) an... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7939 | 7,939 | datasets.load_from_disk progress bar optional manual control | ### 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... | open | 2026-01-13T03:19:13 | https://api.github.com/repos/huggingface/datasets/issues/7939/comments | null | false | datasets.load_from_disk progress bar optional manual control
### 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 [h... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7938 | 7,938 | Fix method to retrieve attributes from file object | fix http://github.com/huggingface/datasets/issues/7936 | closed | 2026-01-12T14:08:31 | https://api.github.com/repos/huggingface/datasets/issues/7938/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7938",
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"patch_url": "https://github.com/huggingface/datasets/pull/7938.patch",
"merged_at": "2026-01-12T14:10... | true | Fix method to retrieve attributes from file object
fix http://github.com/huggingface/datasets/issues/7936 | [] |
https://api.github.com/repos/huggingface/datasets/issues/7937 | 7,937 | Fix duplicate log messages by disabling log propagation by default | 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 ... | open | 2026-01-12T08:03:18 | https://api.github.com/repos/huggingface/datasets/issues/7937/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7937",
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"patch_url": "https://github.com/huggingface/datasets/pull/7937.patch",
"merged_at": null
} | true | Fix duplicate log messages by disabling log propagation by default
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")... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7936 | 7,936 | _add_retries_to_file_obj_read_method makes file_obj invalid for pyarrow | ### Describe the bug
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... | closed | 2026-01-09T07:05:25 | https://api.github.com/repos/huggingface/datasets/issues/7936/comments | null | false | _add_retries_to_file_obj_read_method makes file_obj invalid for pyarrow
### Describe the bug
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"... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7935 | 7,935 | Bug fix: Add HDFS hostname to protocol prefix | 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. | open | 2026-01-09T03:59:45 | https://api.github.com/repos/huggingface/datasets/issues/7935/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7935",
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"patch_url": "https://github.com/huggingface/datasets/pull/7935.patch",
"merged_at": null
} | true | Bug fix: Add HDFS hostname to protocol prefix
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. | [] |
https://api.github.com/repos/huggingface/datasets/issues/7934 | 7,934 | xPath cannot handle hdfs:///xxxx properly | ### Describe the bug
_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": ... | open | 2026-01-08T12:14:11 | https://api.github.com/repos/huggingface/datasets/issues/7934/comments | null | false | xPath cannot handle hdfs:///xxxx properly
### Describe the bug
_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=Tr... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7933 | 7,933 | feat: Add Apache TsFile format support | # 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... | open | 2026-01-05T08:28:12 | https://api.github.com/repos/huggingface/datasets/issues/7933/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7933",
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"patch_url": "https://github.com/huggingface/datasets/pull/7933.patch",
"merged_at": null
} | true | feat: Add Apache TsFile format support
# 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... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7932 | 7,932 | Fix duplicate keyword conflict in load_dataset_builder | 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.
| open | 2026-01-03T05:49:06 | https://api.github.com/repos/huggingface/datasets/issues/7932/comments | {
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"patch_url": "https://github.com/huggingface/datasets/pull/7932.patch",
"merged_at": null
} | true | Fix duplicate keyword conflict in load_dataset_builder
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 i... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7931 | 7,931 | Enable CORS + HTTP Range support for browser partial reads on cas-bridge.xethub.hf.co (Parquet row-group access) | ### Feature request
## 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... | closed | 2026-01-03T04:23:54 | https://api.github.com/repos/huggingface/datasets/issues/7931/comments | null | false | Enable CORS + HTTP Range support for browser partial reads on cas-bridge.xethub.hf.co (Parquet row-group access)
### Feature request
## 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... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7930 | 7,930 | Proposal: Protein 3D Structure Visualization for Dataset Viewer | # 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.
... | open | 2026-01-03T03:30:01 | https://api.github.com/repos/huggingface/datasets/issues/7930/comments | {
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"patch_url": "https://github.com/huggingface/datasets/pull/7930.patch",
"merged_at": null
} | true | Proposal: Protein 3D Structure Visualization for Dataset Viewer
# 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 mole... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7929 | 7,929 | Raise early for invalid `revision` in `load_dataset` | Solves https://github.com/huggingface/datasets/issues/7928
Raise early for invalid revisions
| closed | 2026-01-02T10:40:49 | https://api.github.com/repos/huggingface/datasets/issues/7929/comments | {
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"merged_at": "2026-01-09T11:08... | true | Raise early for invalid `revision` in `load_dataset`
Solves https://github.com/huggingface/datasets/issues/7928
Raise early for invalid revisions
| [] |
https://api.github.com/repos/huggingface/datasets/issues/7928 | 7,928 | `load_dataset` `revision` param not respected when fetching from cache | ### Describe the bug
`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... | open | 2026-01-02T08:20:47 | https://api.github.com/repos/huggingface/datasets/issues/7928/comments | null | false | `load_dataset` `revision` param not respected when fetching from cache
### Describe the bug
`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 an... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7927 | 7,927 | Using Stateful Dataloader with Split Dataset By Node and DCP for DDP | ### Describe the bug
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... | open | 2026-01-01T22:27:07 | https://api.github.com/repos/huggingface/datasets/issues/7927/comments | null | false | Using Stateful Dataloader with Split Dataset By Node and DCP for DDP
### Describe the bug
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(data... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7926 | 7,926 | Add lightweight PDB (Protein Data Bank) file support | ## 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:
- Each row is independent, enabling train/te... | open | 2025-12-31T21:01:04 | https://api.github.com/repos/huggingface/datasets/issues/7926/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7926",
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"patch_url": "https://github.com/huggingface/datasets/pull/7926.patch",
"merged_at": null
} | true | Add lightweight PDB (Protein Data Bank) file support
## 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 wo... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7925 | 7,925 | feat: Add mmCIF file support for macromolecular structures | ## 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:
- Each row ... | open | 2025-12-31T20:11:32 | https://api.github.com/repos/huggingface/datasets/issues/7925/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7925",
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"patch_url": "https://github.com/huggingface/datasets/pull/7925.patch",
"merged_at": null
} | true | feat: Add mmCIF file support for macromolecular structures
## 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 ... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7924 | 7,924 | Add lightweight FASTQ file format support | ## 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... | open | 2025-12-31T19:46:42 | https://api.github.com/repos/huggingface/datasets/issues/7924/comments | {
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"patch_url": "https://github.com/huggingface/datasets/pull/7924.patch",
"merged_at": null
} | true | Add lightweight FASTQ file format support
## 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 d... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7923 | 7,923 | feat(fasta): add lightweight FASTA file format support | ## 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... | open | 2025-12-31T19:33:00 | https://api.github.com/repos/huggingface/datasets/issues/7923/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7923",
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"diff_url": "https://github.com/huggingface/datasets/pull/7923.diff",
"patch_url": "https://github.com/huggingface/datasets/pull/7923.patch",
"merged_at": null
} | true | feat(fasta): add lightweight FASTA file format support
## 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.
#... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7922 | 7,922 | Support Apache TsFile Datasets | ### Feature request
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... | open | 2025-12-31T08:07:51 | https://api.github.com/repos/huggingface/datasets/issues/7922/comments | null | false | Support Apache TsFile Datasets
### Feature request
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 da... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7921 | 7,921 | Add beginner-friendly quick installation verification tip in README | This PR adds a small beginner-friendly tip to help users quickly verify whether 🤗 Datasets is installed correctly by loading a simple dataset.
This improves onboarding experience for first-time users and reduces confusion for beginners.
| open | 2025-12-29T09:22:27 | https://api.github.com/repos/huggingface/datasets/issues/7921/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7921",
"html_url": "https://github.com/huggingface/datasets/pull/7921",
"diff_url": "https://github.com/huggingface/datasets/pull/7921.diff",
"patch_url": "https://github.com/huggingface/datasets/pull/7921.patch",
"merged_at": null
} | true | Add beginner-friendly quick installation verification tip in README
This PR adds a small beginner-friendly tip to help users quickly verify whether 🤗 Datasets is installed correctly by loading a simple dataset.
This improves onboarding experience for first-time users and reduces confusion for beginners.
| [] |
https://api.github.com/repos/huggingface/datasets/issues/7920 | 7,920 | Add progress_format support for machine-readable progress output | ## 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... | open | 2025-12-28T22:35:24 | https://api.github.com/repos/huggingface/datasets/issues/7920/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7920",
"html_url": "https://github.com/huggingface/datasets/pull/7920",
"diff_url": "https://github.com/huggingface/datasets/pull/7920.diff",
"patch_url": "https://github.com/huggingface/datasets/pull/7920.patch",
"merged_at": null
} | true | Add progress_format support for machine-readable progress output
## 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, i... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7919 | 7,919 | Fix load_from_disk progress bar with redirected stdout | 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... | closed | 2025-12-28T15:39:31 | https://api.github.com/repos/huggingface/datasets/issues/7919/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7919",
"html_url": "https://github.com/huggingface/datasets/pull/7919",
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"patch_url": "https://github.com/huggingface/datasets/pull/7919.patch",
"merged_at": "2026-01-16T14:44... | true | Fix load_from_disk progress bar with redirected stdout
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 f... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7918 | 7,918 | datasets.load_from_disk doesn't show progress bar | ### Describe the bug
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... | closed | 2025-12-28T09:14:41 | https://api.github.com/repos/huggingface/datasets/issues/7918/comments | null | false | datasets.load_from_disk doesn't show progress bar
### Describe the bug
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... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7917 | 7,917 | IterableDataset supports automatic sharding | ### Feature request
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... | open | 2025-12-27T16:48:29 | https://api.github.com/repos/huggingface/datasets/issues/7917/comments | null | false | IterableDataset supports automatic sharding
### Feature request
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, n... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7916 | 7,916 | No description provided. | null | closed | 2025-12-27T16:33:11 | https://api.github.com/repos/huggingface/datasets/issues/7916/comments | null | false | No description provided.
| [] |
https://api.github.com/repos/huggingface/datasets/issues/7915 | 7,915 | GDPval dataset Word docs corrupted | The [openai/gdpval](https://huggingface.co/datasets/openai/gdpval) dataset on Hugging Face contains Word .docx files with two types of corruption that cause Microsoft Word to display an "unreadable content" error.
### Root Causes
1. **Corrupted settings.xml**: The `word/settings.xml` file uses incorrect namespace pre... | open | 2025-12-25T13:56:55 | https://api.github.com/repos/huggingface/datasets/issues/7915/comments | null | false | GDPval dataset Word docs corrupted
The [openai/gdpval](https://huggingface.co/datasets/openai/gdpval) dataset on Hugging Face contains Word .docx files with two types of corruption that cause Microsoft Word to display an "unreadable content" error.
### Root Causes
1. **Corrupted settings.xml**: The `word/settings.xml... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7914 | 7,914 | [ROCm] please install 'torchcodec' | ### Describe the bug
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... | open | 2025-12-24T19:39:17 | https://api.github.com/repos/huggingface/datasets/issues/7914/comments | null | false | [ROCm] please install 'torchcodec'
### Describe the bug
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... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7913 | 7,913 | Add lance format support | 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")
``` | closed | 2025-12-24T00:52:20 | https://api.github.com/repos/huggingface/datasets/issues/7913/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7913",
"html_url": "https://github.com/huggingface/datasets/pull/7913",
"diff_url": "https://github.com/huggingface/datasets/pull/7913.diff",
"patch_url": "https://github.com/huggingface/datasets/pull/7913.patch",
"merged_at": "2026-01-09T10:48... | true | Add lance format support
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")
``` | [] |
https://api.github.com/repos/huggingface/datasets/issues/7912 | 7,912 | fix low but large example indexerror | 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. | closed | 2025-12-22T19:53:59 | https://api.github.com/repos/huggingface/datasets/issues/7912/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7912",
"html_url": "https://github.com/huggingface/datasets/pull/7912",
"diff_url": "https://github.com/huggingface/datasets/pull/7912.diff",
"patch_url": "https://github.com/huggingface/datasets/pull/7912.patch",
"merged_at": "2026-01-09T13:23... | true | fix low but large example indexerror
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. | [] |
https://api.github.com/repos/huggingface/datasets/issues/7911 | 7,911 | IndexError when saving few large examples to disk | ### Describe the bug
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 ... | closed | 2025-12-22T11:33:19 | https://api.github.com/repos/huggingface/datasets/issues/7911/comments | null | false | IndexError when saving few large examples to disk
### Describe the bug
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/data... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7910 | 7,910 | Enhance cast_column() with cast_kwargs parameter | Fixes #7909, #7766.
| open | 2025-12-20T10:09:11 | https://api.github.com/repos/huggingface/datasets/issues/7910/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7910",
"html_url": "https://github.com/huggingface/datasets/pull/7910",
"diff_url": "https://github.com/huggingface/datasets/pull/7910.diff",
"patch_url": "https://github.com/huggingface/datasets/pull/7910.patch",
"merged_at": null
} | true | Enhance cast_column() with cast_kwargs parameter
Fixes #7909, #7766.
| [] |
https://api.github.com/repos/huggingface/datasets/issues/7909 | 7,909 | Support cast_kwargs in cast_columns | ### 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... | open | 2025-12-20T10:02:07 | https://api.github.com/repos/huggingface/datasets/issues/7909/comments | null | false | Support cast_kwargs in cast_columns
### 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.... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7908 | 7,908 | set dev version | null | closed | 2025-12-19T15:06:21 | https://api.github.com/repos/huggingface/datasets/issues/7908/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7908",
"html_url": "https://github.com/huggingface/datasets/pull/7908",
"diff_url": "https://github.com/huggingface/datasets/pull/7908.diff",
"patch_url": "https://github.com/huggingface/datasets/pull/7908.patch",
"merged_at": "2025-12-19T15:06... | true | set dev version
| [] |
https://api.github.com/repos/huggingface/datasets/issues/7907 | 7,907 | release: 4.4.2 | null | closed | 2025-12-19T15:02:23 | https://api.github.com/repos/huggingface/datasets/issues/7907/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7907",
"html_url": "https://github.com/huggingface/datasets/pull/7907",
"diff_url": "https://github.com/huggingface/datasets/pull/7907.diff",
"patch_url": "https://github.com/huggingface/datasets/pull/7907.patch",
"merged_at": "2025-12-19T15:03... | true | release: 4.4.2
| [] |
https://api.github.com/repos/huggingface/datasets/issues/7906 | 7,906 | Don't save original_shard_lengths by default for backward compat | following #7897
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 | closed | 2025-12-19T14:44:09 | https://api.github.com/repos/huggingface/datasets/issues/7906/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7906",
"html_url": "https://github.com/huggingface/datasets/pull/7906",
"diff_url": "https://github.com/huggingface/datasets/pull/7906.diff",
"patch_url": "https://github.com/huggingface/datasets/pull/7906.patch",
"merged_at": "2025-12-19T14:57... | true | Don't save original_shard_lengths by default for backward compat
following #7897
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 | [] |
https://api.github.com/repos/huggingface/datasets/issues/7905 | 7,905 | Unbounded network usage when opening Data Studio | ### Describe the bug
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... | closed | 2025-12-16T10:45:02 | https://api.github.com/repos/huggingface/datasets/issues/7905/comments | null | false | Unbounded network usage when opening Data Studio
### Describe the bug
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/datase... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7904 | 7,904 | Request: Review pending neuroimaging PRs (#7886 BIDS loader, #7887 lazy loading) | ## Summary
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) |... | open | 2025-12-14T20:34:31 | https://api.github.com/repos/huggingface/datasets/issues/7904/comments | null | false | Request: Review pending neuroimaging PRs (#7886 BIDS loader, #7887 lazy loading)
## Summary
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 |
|----|-------------|----... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7903 | 7,903 | Docs: add minimal usage example to dataset card guidelines | Adds a short, minimal load_dataset example to the dataset card documentation to help first-time users quickly load and inspect datasets. | open | 2025-12-12T13:16:46 | https://api.github.com/repos/huggingface/datasets/issues/7903/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7903",
"html_url": "https://github.com/huggingface/datasets/pull/7903",
"diff_url": "https://github.com/huggingface/datasets/pull/7903.diff",
"patch_url": "https://github.com/huggingface/datasets/pull/7903.patch",
"merged_at": null
} | true | Docs: add minimal usage example to dataset card guidelines
Adds a short, minimal load_dataset example to the dataset card documentation to help first-time users quickly load and inspect datasets. | [] |
https://api.github.com/repos/huggingface/datasets/issues/7902 | 7,902 | The child process retrieves the dataset directly from the main process instead of executing `memory_mapped_arrow_table_from_file`. | ### 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... | open | 2025-12-12T12:37:44 | https://api.github.com/repos/huggingface/datasets/issues/7902/comments | null | false | The child process retrieves the dataset directly from the main process instead of executing `memory_mapped_arrow_table_from_file`.
### 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 dis... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7901 | 7,901 | ShuffledDataSourcesArrowExamplesIterable cannot properly resume from checkpoint | ### Describe the bug
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... | open | 2025-12-12T06:57:32 | https://api.github.com/repos/huggingface/datasets/issues/7901/comments | null | false | ShuffledDataSourcesArrowExamplesIterable cannot properly resume from checkpoint
### Describe the bug
ShuffledDataSourcesArrowExamplesIterable cannot properly resume from checkpoint
### Steps to reproduce the bug
1. The reproducible code is as follows：
```
from datasets import Dataset, concatenate_datasets, interlea... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7900 | 7,900 | `Permission denied` when sharing cache between users | ### Describe the bug
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... | open | 2025-12-09T16:41:47 | https://api.github.com/repos/huggingface/datasets/issues/7900/comments | null | false | `Permission denied` when sharing cache between users
### Describe the bug
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 `P... | [] |
https://api.github.com/repos/huggingface/datasets/issues/7899 | 7,899 | Add inspect_ai eval logs support | Support for .eval log files from inspect_ai
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... | closed | 2025-12-08T16:14:40 | https://api.github.com/repos/huggingface/datasets/issues/7899/comments | {
"url": "https://api.github.com/repos/huggingface/datasets/pulls/7899",
"html_url": "https://github.com/huggingface/datasets/pull/7899",
"diff_url": "https://github.com/huggingface/datasets/pull/7899.diff",
"patch_url": "https://github.com/huggingface/datasets/pull/7899.patch",
"merged_at": "2025-12-09T14:45... | true | Add inspect_ai eval logs support
Support for .eval log files from inspect_ai
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 nes... | [] |
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