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https://api.github.com/repos/huggingface/datasets/issues/7813 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7813/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7813/comments | https://api.github.com/repos/huggingface/datasets/issues/7813/events | https://github.com/huggingface/datasets/issues/7813 | 3,503,446,288 | I_kwDODunzps7Q0lkQ | 7,813 | Caching does not work when using python3.14 | {
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"https://github.com/uqfoundation/dill/issues/725"
] | 2025-10-10T15:36:46 | 2025-10-10T15:47:32 | null | NONE | null | null | {
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} | ### Describe the bug
Traceback (most recent call last):
File "/workspace/ctn.py", line 8, in <module>
ds = load_dataset(f"naver-clova-ix/synthdog-{lang}") # или "synthdog-zh" для китайского
File "/workspace/.venv/lib/python3.14/site-packages/datasets/load.py", line 1397, in load_dataset
builder_instance =... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7812 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7812/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7812/comments | https://api.github.com/repos/huggingface/datasets/issues/7812/events | https://github.com/huggingface/datasets/pull/7812 | 3,500,901,422 | PR_kwDODunzps6s_New | 7,812 | docs: document_dataset PDFs & OCR | {
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https://api.github.com/repos/huggingface/datasets/issues/7811 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7811/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7811/comments | https://api.github.com/repos/huggingface/datasets/issues/7811/events | https://github.com/huggingface/datasets/issues/7811 | 3,500,741,658 | I_kwDODunzps7QqRQa | 7,811 | SIGSEGV when Python exits due to near null deref | {
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"The issue seems to come from `dill` which is a `datasets` dependency, e.g. this segfaults:\n\n```python\nimport dill\nfrom tqdm import tqdm\nprogress_bar = tqdm(total=(1000), unit='cols', desc='cols ')\nprogress_bar.update(1)\n```\n\n`tqdm` seems to segfault when `dill` is imported. I only found this about segfaul... | 2025-10-09T22:00:11 | 2025-10-10T22:09:24 | null | NONE | null | null | {
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} | ### Describe the bug
When I run the following python script using datasets I get a segfault.
```python
from datasets import load_dataset
from tqdm import tqdm
progress_bar = tqdm(total=(1000), unit='cols', desc='cols ')
progress_bar.update(1)
```
```
% lldb -- python3 crashmin.py
(lldb) target create "python3"
Cur... | null | {
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] | 2025-10-09T16:06:47 | 2025-10-09T16:16:31 | 2025-10-09T16:06:58 | MEMBER | null | null | null | null | add an s to be consistent with pandas' on_bad_lines | {
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] | 2025-10-09T14:41:46 | 2025-10-09T16:04:35 | 2025-10-09T16:04:33 | MEMBER | null | null | null | null | ```python
from datasets import load_dataset
on_bad_file = "error" # default
# on_bad_file = "warn" # warn and skip bad file
# on_bad_file = "skip" # skip bad file
ds = load_dataset(parquet_dataset_id, on_bad_file=on_bad_file)
``` | {
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] | 2025-10-09T13:53:06 | 2025-10-09T14:01:57 | 2025-10-09T14:01:56 | MEMBER | null | null | null | null | There ~10 unnecessary `/api/datasets/user/dataset/revision`calls due to multithreading in data files resolution.
I disabled multithreading, which was actually not useful anymore since `HfFileSystem` has been using caching for a while now. | {
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"Please add the support for `Zarr`! That's what we use in the Bioimaging community. It is crucial, because raw upload of a *single* bio image can take _terrabytes in memory_!\n\nThe python library would be `bioio` or `zarr`:\n- [ ] Zarr: `bioio` or `zarr`\n\nSee a [Zarr example](https://ome.github.io/ome-ngff-valid... | 2025-10-09T10:18:24 | 2025-10-10T11:26:23 | null | MEMBER | null | null | {
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- [ ] DICOMs: pydicom
- [ ] NIfTIs: nibabel
- [ ] WFDB: wfdb
cc @zaRizk7 for viz
Feel free to comment / suggest other formats and libs you'd like to see or to share your interest in one of the mentioned format | null | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7803). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
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https://api.github.com/repos/huggingface/datasets/issues/7802 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7802/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7802/comments | https://api.github.com/repos/huggingface/datasets/issues/7802/events | https://github.com/huggingface/datasets/issues/7802 | 3,497,454,119 | I_kwDODunzps7Qduon | 7,802 | [Docs] Missing documentation for `Dataset.from_dict` | {
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Link to method (docstring present): https://github.com/huggingface/datasets/blob/6f2502c5a026caa89839713f6f7c8b958e5e83eb/src/datasets/arrow_dataset.py#L1029
The docstring is present for the function, but seems missing from the... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7801 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7801/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7801/comments | https://api.github.com/repos/huggingface/datasets/issues/7801/events | https://github.com/huggingface/datasets/pull/7801 | 3,496,388,063 | PR_kwDODunzps6swITn | 7,801 | Add parquet scan options and docs | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7801). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-10-08T18:04:52 | 2025-10-09T07:55:58 | 2025-10-09T07:55:56 | MEMBER | null | null | null | null | I added scan options, useful to control buffering and caching when streaming and docs, including how to select a subset of columns and apply filters | {
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https://api.github.com/repos/huggingface/datasets/issues/7800 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7800/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7800/comments | https://api.github.com/repos/huggingface/datasets/issues/7800/events | https://github.com/huggingface/datasets/pull/7800 | 3,494,747,495 | PR_kwDODunzps6sqkmT | 7,800 | Fix polars cast column image | {
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"The Image() type is set to have a storage of `string` for \"path\" and not `large_string`. Therefore while your change does work to do the conversion, it can create issues in other places. For example I'm pretty sure you wouldn't be able to concatenate the resulting dataset with a dataset with Image() using `strin... | 2025-10-08T10:01:18 | 2025-10-12T06:14:08 | null | NONE | null | null | null | null | Fixes #7765
The problem here is that polars uses pyarrow large_string for images, while pandas and others just use the string type. This PR solves that and adds a test.
```python
import polars as pl
from datasets import Dataset
import pandas as pd
import pyarrow as pa
from pathlib import Path
shared_data... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7799 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7799/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7799/comments | https://api.github.com/repos/huggingface/datasets/issues/7799/events | https://github.com/huggingface/datasets/pull/7799 | 3,487,791,741 | PR_kwDODunzps6sTJKA | 7,799 | Define CI future | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7799). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-10-06T15:15:45 | 2025-10-07T14:30:21 | 2025-10-07T14:30:19 | MEMBER | null | null | null | null | this should fix the CI which currently uses transformers on 3.9 while it's now unsupported | {
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https://api.github.com/repos/huggingface/datasets/issues/7798 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7798/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7798/comments | https://api.github.com/repos/huggingface/datasets/issues/7798/events | https://github.com/huggingface/datasets/issues/7798 | 3,484,470,782 | I_kwDODunzps7PsM3- | 7,798 | Audio dataset is not decoding on 4.1.1 | {
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"Previously (datasets<=3.6.0), audio columns were decoded automatically when accessing a row. Now, for performance reasons, audio decoding is lazy by default: you just see the file path unless you explicitly cast the column to Audio.\n\nHere’s the fix (following the current [datasets audio docs](https://huggingface... | 2025-10-05T06:37:50 | 2025-10-06T14:07:55 | null | NONE | null | null | {
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} | ### Describe the bug
The audio column remain as non-decoded objects even when accessing them.
```python
dataset = load_dataset("MrDragonFox/Elise", split = "train")
dataset[0] # see that it doesn't show 'array' etc...
```
Works fine with `datasets==3.6.0`
Followed the docs in
- https://huggingface.co/docs/dataset... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7797 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7797/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7797/comments | https://api.github.com/repos/huggingface/datasets/issues/7797/events | https://github.com/huggingface/datasets/pull/7797 | 3,473,011,621 | PR_kwDODunzps6rhtf_ | 7,797 | Datasets: Add WMT21 & WMT22 loaders (basic TSV loaders, sample data, tests) | {
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"closing since datasets should be added on https://huggingface.co directly"
] | 2025-10-01T10:46:01 | 2025-10-10T15:33:25 | 2025-10-10T15:33:25 | NONE | null | null | null | null | - Implemented TSV-based dataset loaders:
- WMT21Dataset (local_datasets/wmt21/wmt21_dataset.py)
- WMT22Dataset (local_datasets/wmt22/wmt22_dataset.py)
These classes load source-target pairs from .tsv files for train, validation, and test splits.
- Created sample dummy data for both datasets:
- dummy_da... | {
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https://api.github.com/repos/huggingface/datasets/issues/7796 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7796/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7796/comments | https://api.github.com/repos/huggingface/datasets/issues/7796/events | https://github.com/huggingface/datasets/pull/7796 | 3,470,616,799 | PR_kwDODunzps6rZjrW | 7,796 | Docs: fix typo, improve readability, add code comments | {
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- Fixed a small typo in README to improve clarity
- Fixed repeated word "frameworks frameworks"
- Split long paragraphs into shorter sentences for readability
- Added # Example comments before code blocks for clarity
Why:
- Helps new users avoid confusion
How I tested:
- Checked locally in Markd... | null | {
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"@lhoestq 🙏 ",
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7795). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-09-29T09:12:55 | 2025-10-10T16:04:21 | 2025-10-10T16:04:21 | CONTRIBUTOR | null | null | null | null | Basically https://github.com/huggingface/datasets/pull/7718 just for binary view instead of string view | {
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https://api.github.com/repos/huggingface/datasets/issues/7794 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7794/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7794/comments | https://api.github.com/repos/huggingface/datasets/issues/7794/events | https://github.com/huggingface/datasets/pull/7794 | 3,460,793,966 | PR_kwDODunzps6q4XyU | 7,794 | Fix nested data conversions error in parquet loading (fixes #7793) | {
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"Unfortunately, I'm running into this error:\r\n```\r\n~/scratch » uv run python test_hf.py \r\nResolving data file... | 2025-09-27T22:04:13 | 2025-10-01T16:56:20 | null | NONE | null | null | null | null | Fixes #7793
## Problem
Loading datasets with deeply nested structures (like `metr-evals/malt-public`) fails with:
ArrowNotImplementedError: Nested data conversions not implemented for chunked array outputs
This occurs when parquet files contain nested data (lists, structs, maps) that exceed PyArrow's 16MB chun... | null | {
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"Hey @neevparikh,\nThanks for reporting this! I can reproduce the issue and have identified the root cause.\nProblem: The metr-evals/malt-public dataset contains deeply nested conversation data that exceeds PyArrow's 16MB chunk limit. When PyArrow tries to read it in chunks, it hits a fundamental limitation: \"Nest... | 2025-09-27T01:03:12 | 2025-09-27T21:35:31 | null | NONE | null | null | {
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} | ### Describe the bug
Hi! When I load this dataset, it fails with a pyarrow error. I'm using datasets 4.1.1, though I also see this with datasets 4.1.2
To reproduce:
```
import datasets
ds = datasets.load_dataset(path="metr-evals/malt-public", name="irrelevant_detail")
```
Error:
```
Traceback (most recent call las... | null | {
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"# With `datasets.Dataset`\n\nHere is an small script that shows the distribution differences of samples between `interleave_datasets`, `concatenate_datasets` and `concatenate_datasets` + shuffling.\n\n```python\nimport datasets as hf_datasets\n\ndef gen(dataset: int, n_samples: int):\n for i in range(n_samples)... | 2025-09-26T10:05:19 | 2025-10-06T15:24:19 | null | NONE | null | null | {
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I would like to be able to concatenate multiple `IterableDataset` with possibly different features. I would like to then be able to stream the results in parallel (both using DDP and multiple workers in the pytorch DataLoader). I want the merge of datasets to be well balanced between the different ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7791 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7791/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7791/comments | https://api.github.com/repos/huggingface/datasets/issues/7791/events | https://github.com/huggingface/datasets/pull/7791 | 3,454,046,306 | PR_kwDODunzps6qh_2W | 7,791 | fix: add `num_proc` argument to `Dataset.to_sql` | {
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"Hi ! could you also write a test to make sure this works fine ?\r\n\r\n(in case there needs to be a special logic to handle the concurrent writes to the database)"
] | 2025-09-25T15:02:46 | 2025-10-06T10:42:23 | null | NONE | null | null | null | null | **Task Done:**
- Resolve issue #7788 : Add the missing argument mapping in Dataset.to_sql (`src/datasets/arrow_dataset.py`)
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7790). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"cc @mishig25"
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7787). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"can you re-read your PR please ?"
] | 2025-09-24T20:19:44 | 2025-09-26T15:04:25 | 2025-09-26T15:04:23 | CONTRIBUTOR | null | null | null | null | ## perf: reduce copies in TorchFormatter
This PR make changes the torch formatter to avoid unnecessary copies and casts when converting decoded batches to tensors.
Because many arrays are already in a torch-friendly memory layout and dtype, we can do zero‑copy conversions (`torch.from_numpy`) and only fall back t... | {
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"@lhoestq Continuing on the idea from https://github.com/huggingface/datasets/issues/217 \r\nThis doesn't add a new stopping criteria, but a new argument to interleave_datasets method. Let me know what you think and if you see a better way of doing this I'm open to suggestions.",
"Great ! this is a cool additions... | 2025-09-24T09:18:14 | 2025-10-07T14:50:16 | 2025-10-07T14:50:16 | CONTRIBUTOR | null | null | null | null | Right now, `interleave_datasets` function with probabilities will sample with replacement. The PR adds the ability to sample without replacement.
```
import datasets
# Create datasets of different sizes to test exhaustion
data_a = [{"value": i, "source": "A"} for i in range(5)]
data_b = [{"value": i, "source":... | {
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"I think we can keep the arg and add the missing torch.mean() in the Audio.decode_example method",
"> I think we can keep the arg and add the missing torch.mean() in the Audio.decode_example method\r\n\r\nThank you @lhoestq. I will add torch.mean()."
] | 2025-09-22T09:06:52 | 2025-09-23T09:57:37 | null | CONTRIBUTOR | null | null | null | null | This PR fixes issue #7745.
Who can review:
@lhoestq | null | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7783). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"@lhoestq could you have a look at this PR please? It makes `datasets` compatible with t... | 2025-09-18T14:45:20 | 2025-10-01T13:56:05 | 2025-10-01T13:56:03 | CONTRIBUTOR | null | null | null | null | Related to https://github.com/huggingface/huggingface_hub/issues/3340.
This PR adapts `datasets` to be compatible with both huggingface_hub v0.x and v1.x.
In practice nothing else should change (I've checked the codebase). The `HfHubHTTPError` is a base error defined in `huggingface_hub` that inherits from `requ... | {
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