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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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https://api.github.com/repos/huggingface/datasets/issues/7943 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7943/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7943/comments | https://api.github.com/repos/huggingface/datasets/issues/7943/events | https://github.com/huggingface/datasets/pull/7943 | 3,809,778,662 | PR_kwDODunzps68-rLO | 7,943 | Add _generate_shards | {
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"merged_at": "2026-01-14T16:46... | 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/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 | 2026-01-13T03:19:13 | 2026-01-13T03:19:13 | 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.
| null | {
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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.
... | null | {
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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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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:
- Each row is independent, enabling train/te... | null | {
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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:
- Each row ... | null | {
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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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] | open | false | [] | null | 6 | 2025-12-31T08:07:51 | 2026-04-29T09:23:49 | null | null | NONE | [] | null | null | null | null | ### 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... | 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 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.
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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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"merged_at": "2026-01-16T14:44... | 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/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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"merged_at": "2026-01-09T10:48... | 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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"merged_at": "2026-01-09T13:23... | 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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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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"merged_at": "2025-12-19T14:57... | 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 | {
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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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"followers_... | [] | open | false | [] | null | 1 | 2025-12-14T20:34:31 | 2025-12-15T11:25:29 | null | null | CONTRIBUTOR | [] | null | null | null | null | ## 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) |... | 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 | 2025-12-12T12:37:44 | 2025-12-15T11:48:16 | 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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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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https://api.github.com/repos/huggingface/datasets/issues/7893 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7893/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7893/comments | https://api.github.com/repos/huggingface/datasets/issues/7893/events | https://github.com/huggingface/datasets/issues/7893 | 3,688,454,085 | I_kwDODunzps7b2VfF | 7,893 | push_to_hub OOM: _push_parquet_shards_to_hub accumulates all shard bytes in memory | {
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Large dataset uploads crash or hang due to memory exhaustion. This appears to be the root cause of several long-standing issues.
### Related Issues
This is the root cause of:
- #5990 - Pushing a large dataset on the hub consistently hangs (46 comments, open since 2023)
- #7400 - 504 Gateway Timeout when u... | {
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https://api.github.com/repos/huggingface/datasets/issues/7892 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7892/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7892/comments | https://api.github.com/repos/huggingface/datasets/issues/7892/events | https://github.com/huggingface/datasets/pull/7892 | 3,681,848,709 | PR_kwDODunzps62ZFzh | 7,892 | encode nifti correctly when uploading lazily | {
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"merged_at": "2025-12-19T14:13... | When trying to upload nifti datasets lazily I got the error:
```python
from pathlib import Path
from datasets import load_dataset
nifti_dir = Path("<local_path>")
dataset = load_dataset(
"niftifolder",
data_dir=str(nifti_dir.absolute()),
streaming=True,
)
dataset.push_to_hub(repo... | {
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"merged_at": "2025-12-16T14:20... | Fixes #7877 and follows up on feedback from [`#7890`](https://github.com/huggingface/datasets/pull/7890).
## Context
In [`#7890`](https://github.com/huggingface/datasets/pull/7890) it was introduced an automatic creation of the `TMPDIR` directory in `_TempCacheDir` so that `datasets` does not silently fall back to `/... | {
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https://api.github.com/repos/huggingface/datasets/issues/7890 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7890/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7890/comments | https://api.github.com/repos/huggingface/datasets/issues/7890/events | https://github.com/huggingface/datasets/pull/7890 | 3,677,077,051 | PR_kwDODunzps62JMyH | 7,890 | Fix: Auto-create TMPDIR directory when it doesn't exist (Issue #7877) | {
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} | # Fix: Auto-create TMPDIR directory when it doesn't exist
Fixes #7877
## Description
This PR fixes issue #7877 by implementing automatic creation of the `TMPDIR` directory when it is set but doesn't exist. Previously, `tempfile.mkdtemp()` would silently ignore `TMPDIR` and fall back to `/tmp` if the specified direct... | {
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https://api.github.com/repos/huggingface/datasets/issues/7889 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7889/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7889/comments | https://api.github.com/repos/huggingface/datasets/issues/7889/events | https://github.com/huggingface/datasets/pull/7889 | 3,676,933,025 | PR_kwDODunzps62Iykj | 7,889 | fix(tests): stabilize flaky Hub LFS integration test | {
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} | ## Problem
`test_push_dataset_dict_to_hub_overwrite_files` intermittently fails with:
```
BadRequestError: LFS pointer pointed to a file that does not exist
```
This has been causing the `deps-latest` integration tests to fail on main (visible in recent CI runs). I ran into this while working on the BIDS loader PR an... | null | {
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"merged_at": "2025-12-08T12:06... | Fixes #7883
This PR adds @overload decorators to load_dataset() to help type checkers like Pylance and mypy correctly infer the return type based on the split and streaming parameters.
Changes:
- Added typing imports (Literal, overload) to load.py
- Added 4 @overload signatures that map argument combinations to... | {
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"merged_at": "2025-12-19T14:14... | ## Summary
- **Single-line fix**: Change `dataobj=nifti_image.get_fdata()` → `dataobj=nifti_image.dataobj`
- Preserves nibabel's `ArrayProxy` for true lazy loading instead of eagerly loading entire NIfTI files into memory
- Improves error handling: corrupted files now fail at access time with clear context instead of s... | {
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} | ## Summary
Adds native BIDS (Brain Imaging Data Structure) dataset loading support using PyBIDS, enabling `load_dataset('bids', data_dir='/path/to/bids')` workflow for neuroimaging researchers.
**Contributes to #7804** (Support scientific data formats) - BIDS is a widely-used standard for organizing neuroimaging data... | {
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Made new_fingerprint optional (Optional[str] = None) in Dataset.add_column and Dataset.add_item
Added a simple test to verify both methods work without providing a fingerprint
Why this change is safe:
The Dataset constructor already handles fingerprint=None by generating a new fingerpri... | {
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Hi, everyone ! I am a beginner with datasets.
I am testing reading multiple CSV files from a zip archive. The result of reading the dataset shows success, and it can ultimately be correctly saved to CSV.
Intermediate results:
```
Generating train split: 62973 examples [00:00, 175939.01 examples/... | {
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Some files in the `epfml/FineWeb-HQ` dataset fail to load via the Hugging Face `datasets` library.
- xet-hosted files load fine
- LFS-hosted files sometimes fail
Example:
- Fails: https://huggingface.co/datasets/epfml/FineWeb-HQ/blob/main/data/CC-MAIN-2024-26/000_00003.parquet
- Works: ht... | null | {
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When using `audiofolder` or `imagefolder` with directories for **splits** (train/test) rather than class labels, a spurious `label` column is incorrectly created.
**Example:** https://huggingface.co/datasets/datasets-examples/doc-audio-4
```
from datasets import load_dataset
ds = load_dataset("dat... | null | {
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When downloading a dataset in streamed mode and exiting the program before the download completes, the python program core dumps when exiting:
```
terminate called without an active exception
Aborted (core dumped)
```
Tested with python 3.12.3, python 3.9.21
### Steps to reproduce the bug
Cr... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7877 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7877/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7877/comments | https://api.github.com/repos/huggingface/datasets/issues/7877/events | https://github.com/huggingface/datasets/issues/7877 | 3,652,906,788 | I_kwDODunzps7Zuu8k | 7,877 | work around `tempfile` silently ignoring `TMPDIR` if the dir doesn't exist | {
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However, the `tempfile` facility that `datasets` and `pyarrow` use ... | {
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} | Adds an integration test for the `HuggingFaceM4/InterleavedWebDocuments` dataset.
- Gracefully skips if the dataset is not yet available on the Hub
- Checks basic loading and structure once it becomes available
Closes #7394
First-time contributor to `datasets` — really excited about this! Happy to make any ad... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7874 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7874/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7874/comments | https://api.github.com/repos/huggingface/datasets/issues/7874/events | https://github.com/huggingface/datasets/pull/7874 | 3,644,558,046 | PR_kwDODunzps60c4sg | 7,874 | Nifti visualization support | {
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"merged_at": "2025-11-21T12:31... | closes #7870
leverage Papaya to visualize nifti images. For this I created a Wrapper class for `nibabel.nifti1.Nifti1Image` that provides the same interface but exposes an additional `_repr_html_` method, which is needed to visualize the image in jupyter (didn't test in colab, but that should work equivalently).
... | {
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https://api.github.com/repos/huggingface/datasets/issues/7873 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7873/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7873/comments | https://api.github.com/repos/huggingface/datasets/issues/7873/events | https://github.com/huggingface/datasets/pull/7873 | 3,643,993,705 | PR_kwDODunzps60a_IZ | 7,873 | Fix chunk casting and schema unification in dataset | {
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} | Updated chunk handling to cast to expected schema when features are provided or to unify schemas when not. This ensures proper schema alignment for the yielded batches.
fixes #7872
This PR fixes a bug where `IterableDataset` created from a generator with explicit `features` parameter would fail during arrow oper... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7872 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7872/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7872/comments | https://api.github.com/repos/huggingface/datasets/issues/7872/events | https://github.com/huggingface/datasets/issues/7872 | 3,643,681,893 | I_kwDODunzps7ZLixl | 7,872 | IterableDataset does not use features information in to_pandas | {
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`IterableDataset` created from generator with explicit `features=` parameter seems to ignore provided features description for certain operations, e.g. `.to_pandas(...)` when data coming from the generator has missing values.
### Steps to reproduce the bug
```python
import datasets
from datasets... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7871 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7871/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7871/comments | https://api.github.com/repos/huggingface/datasets/issues/7871/events | https://github.com/huggingface/datasets/issues/7871 | 3,643,607,371 | I_kwDODunzps7ZLQlL | 7,871 | Reqwest Error: HTTP status client error (429 Too Many Requests) | {
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full error message:
```
Traceback (most recent call last):
File "/home/yanan/miniconda3/bin/hf", line 7, in <module>
sys.exit(main())
~~~~^^
File "/home/yanan/miniconda3/lib/python3.13/site-packages/huggingface_hub/cli/hf.py", line 56, in main
app()
~~~^^
File "/ho... | {
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https://api.github.com/repos/huggingface/datasets/issues/7870 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7870/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7870/comments | https://api.github.com/repos/huggingface/datasets/issues/7870/events | https://github.com/huggingface/datasets/issues/7870 | 3,642,209,953 | I_kwDODunzps7ZF7ah | 7,870 | Visualization for Medical Imaging Datasets | {
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I checked the possibilities to visualize the nifti (and potentially dicom), and here's what I found:
- https://github.com/aces/brainbrowser, AGPL3 license, last commit 3 months ago, latest (github) release from 2017. It's available on jsdelivr... | {
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https://api.github.com/repos/huggingface/datasets/issues/7869 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7869/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7869/comments | https://api.github.com/repos/huggingface/datasets/issues/7869/events | https://github.com/huggingface/datasets/issues/7869 | 3,636,808,734 | I_kwDODunzps7YxUwe | 7,869 | Why does dataset merge fail when tools have different parameters? | {
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Suppose I want to fine-tune an agent model that may receive two different tools: tool1 and tool2. These tools have different parameters and types in their schema definitions.
When I try to merge datasets containing different tool definitions... | {
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https://api.github.com/repos/huggingface/datasets/issues/7868 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7868/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7868/comments | https://api.github.com/repos/huggingface/datasets/issues/7868/events | https://github.com/huggingface/datasets/issues/7868 | 3,632,429,308 | I_kwDODunzps7Ygnj8 | 7,868 | Data duplication with `split_dataset_by_node` and `interleaved_dataset` | {
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Data duplication in different rank, when process a iterabledataset with first `split_dataset_by_node` and then `interleaved_dataset`
### Steps to reproduce the bug
I have provide a minimum scripts
```python
import os
from datasets import interleave_datasets, load_dataset
from datasets.distribu... | {
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https://api.github.com/repos/huggingface/datasets/issues/7867 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7867/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7867/comments | https://api.github.com/repos/huggingface/datasets/issues/7867/events | https://github.com/huggingface/datasets/issues/7867 | 3,620,931,722 | I_kwDODunzps7X0wiK | 7,867 | NonMatchingSplitsSizesError when loading partial dataset files | {
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When loading only a subset of dataset files while the dataset's README.md contains split metadata, the system throws a NonMatchingSplitsSizesError . This prevents users from loading partial datasets for quick validation in cases of poor network conditions or very large datasets.
### Steps to repr... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7866 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7866/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7866/comments | https://api.github.com/repos/huggingface/datasets/issues/7866/events | https://github.com/huggingface/datasets/pull/7866 | 3,620,436,248 | PR_kwDODunzps6zL7Sz | 7,866 | docs: add Python version requirement note to installation section | {
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https://api.github.com/repos/huggingface/datasets/issues/7865 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7865/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7865/comments | https://api.github.com/repos/huggingface/datasets/issues/7865/events | https://github.com/huggingface/datasets/pull/7865 | 3,620,116,195 | PR_kwDODunzps6zK2H_ | 7,865 | [FEAT] MIDI feature support | {
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Contradicting their documentation (which doesn't mention the parameter at all), both Dataset.add_column and Dataset.add_item require a new_fingerprint string. This parameter is passed directly to the dataset constructor, which has the fingerprint parameter listed as optional; is there any reason i... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7863 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7863/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7863/comments | https://api.github.com/repos/huggingface/datasets/issues/7863/events | https://github.com/huggingface/datasets/issues/7863 | 3,618,836,821 | I_kwDODunzps7XsxFV | 7,863 | Support hosting lance / vortex / iceberg / zarr datasets on huggingface hub | {
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] | open | false | [] | null | 14 | 2025-11-13T00:51:07 | 2026-04-23T12:29:09 | null | null | NONE | [] | null | null | null | null | ### Feature request
Huggingface datasets has great support for large tabular datasets in parquet with large partitions. I would love to see two things in the future:
- equivalent support for `lance`, `vortex`, `iceberg`, `zarr` (in that order) in a way that I can stream them using the datasets library
- more fine-gr... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7862 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7862/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7862/comments | https://api.github.com/repos/huggingface/datasets/issues/7862/events | https://github.com/huggingface/datasets/pull/7862 | 3,617,947,090 | PR_kwDODunzps6zDjEj | 7,862 | Add flatten_indices option to save_to_disk method | {
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} | Added flatten_indices parameter to control index flattening during dataset saving.
Solves #7861
This PR introduces a new optional argument, flatten_indices, to the save_to_disk methods in both Dataset and DatasetDict.
The change allows users to skip the expensive index-flattening step when saving datasets that ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7861 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7861/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7861/comments | https://api.github.com/repos/huggingface/datasets/issues/7861/events | https://github.com/huggingface/datasets/issues/7861 | 3,611,821,713 | I_kwDODunzps7XSAaR | 7,861 | Performance Issue: save_to_disk() 200-1200% slower due to unconditional flatten_indices() | {
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The `save_to_disk()` method unconditionally calls `flatten_indices()` when `_indices` is not None, causing severe performance degradation for datasets processed with filtering, shuffling, or multiprocessed mapping operations.
**Root cause**: This line rebuilds the entire dataset unnecessarily:
`... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7860 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7860/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7860/comments | https://api.github.com/repos/huggingface/datasets/issues/7860/events | https://github.com/huggingface/datasets/pull/7860 | 3,610,706,034 | PR_kwDODunzps6yrHQN | 7,860 | Support loading local arrow datasets via load_dataset | {
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#7018 | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7859 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7859/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7859/comments | https://api.github.com/repos/huggingface/datasets/issues/7859/events | https://github.com/huggingface/datasets/pull/7859 | 3,608,586,063 | PR_kwDODunzps6yj-aZ | 7,859 | fix some broken links | {
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https://api.github.com/repos/huggingface/datasets/issues/7858 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7858/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7858/comments | https://api.github.com/repos/huggingface/datasets/issues/7858/events | https://github.com/huggingface/datasets/pull/7858 | 3,605,471,548 | PR_kwDODunzps6yZq4r | 7,858 | Support downloading specific splits in `load_dataset` | {
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} | This is PR builds on top of #7706 to revive the unfinished #6832 but isn't just cleaning up things, here are some important changes:
- `download_mode="FORCE_REDOWNLOAD"` is interpreted as always creating a clean slate, that means that even if we already did:
```python
load_dataset("<name>")
load_dataset("<name>",... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7856 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7856/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7856/comments | https://api.github.com/repos/huggingface/datasets/issues/7856/events | https://github.com/huggingface/datasets/issues/7856 | 3,603,729,142 | I_kwDODunzps7WzIr2 | 7,856 | Missing transcript column when loading a local dataset with "audiofolder" | {
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My local dataset is not properly loaded when using `load_dataset("audiofolder", data_dir="my_dataset")` with a `jsonl` metadata file.
Only the `audio` column is read while the `transcript` column is not.
The last tested `datasets` version where the behavior was still correct is 2.18.0.
### Steps... | {
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https://api.github.com/repos/huggingface/datasets/issues/7855 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7855/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7855/comments | https://api.github.com/repos/huggingface/datasets/issues/7855/events | https://github.com/huggingface/datasets/pull/7855 | 3,602,216,153 | PR_kwDODunzps6yPIRy | 7,855 | ArXiv -> HF Papers | {
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https://api.github.com/repos/huggingface/datasets/issues/7854 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7854/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7854/comments | https://api.github.com/repos/huggingface/datasets/issues/7854/events | https://github.com/huggingface/datasets/pull/7854 | 3,596,750,849 | PR_kwDODunzps6x8yiy | 7,854 | [Distributed] split_dataset_by_node() gives the same number of examples for each node | {
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```python
import torch.distributed as dist
from datasets import IterableDataset
from datasets.distributed import split_dataset_by_node
from collections import Counter
def g(shards):
for shard in shards:
# shards don't have the same length
num_examples = 3 + shard
f... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7853 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7853/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7853/comments | https://api.github.com/repos/huggingface/datasets/issues/7853/events | https://github.com/huggingface/datasets/pull/7853 | 3,596,232,275 | PR_kwDODunzps6x7ARa | 7,853 | Fix embed storage nifti | {
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Adds `embed_storage` function and allows gzipped files to be loaded correctly from local storage. | {
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There are currently 2 problems with the new NifTI feature:
1. dealing with zipped files, this is mentioned and explained [here](https://github.com/huggingface/datasets/pull/7815#issuecomment-3496199503)
2. when uploading via the `niftifolder` feature, the resulting parquet only contains relative p... | {
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As mentioned in the issue `mode` has been copy-pasted but isn't used in these files. | {
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