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https://api.github.com/repos/huggingface/datasets/issues/7737 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7737/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7737/comments | https://api.github.com/repos/huggingface/datasets/issues/7737/events | https://github.com/huggingface/datasets/pull/7737 | 3,318,670,801 | PR_kwDODunzps6jf5io | 7,737 | docs: Add column overwrite example to batch mapping guide | {
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} | This PR adds a complementary example showing the **column-overwriting** pattern, which is both more direct and more flexible for many transformations.
### Proposed Change
The original `remove_columns` example remains untouched. Below it, this PR introduces an alternative approach that overwrites an existing colum... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7736 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7736/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7736/comments | https://api.github.com/repos/huggingface/datasets/issues/7736/events | https://github.com/huggingface/datasets/pull/7736 | 3,311,618,096 | PR_kwDODunzps6jIWQ3 | 7,736 | Fix type hint `train_test_split` | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7736). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-08-11T20:46:53 | 2025-08-13T13:13:50 | 2025-08-13T13:13:48 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7735 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7735/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7735/comments | https://api.github.com/repos/huggingface/datasets/issues/7735/events | https://github.com/huggingface/datasets/pull/7735 | 3,310,514,828 | PR_kwDODunzps6jEq5w | 7,735 | fix largelist repr | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7735). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-08-11T15:17:42 | 2025-08-11T15:39:56 | 2025-08-11T15:39:54 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7734 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7734/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7734/comments | https://api.github.com/repos/huggingface/datasets/issues/7734/events | https://github.com/huggingface/datasets/pull/7734 | 3,306,519,239 | PR_kwDODunzps6i4pmA | 7,734 | Fixing __getitem__ of datasets which behaves inconsistent to documentation when setting _format_type to None | {
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"this breaking change is actually expected, happy to help with a fix in sentencetransformers to account for this"
] | 2025-08-09T15:52:54 | 2025-08-13T13:10:14 | null | NONE | null | null | false | {
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} | Setting _format_type to None, should return plain python object but as of 4.0.0 returns Column. This fails in libs such as sentencetransformers (such as in generation of hard negatives) where plain python is expected. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7733 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7733/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7733/comments | https://api.github.com/repos/huggingface/datasets/issues/7733/events | https://github.com/huggingface/datasets/issues/7733 | 3,304,979,299 | I_kwDODunzps7E_ftj | 7,733 | Dataset Repo Paths to Locally Stored Images Not Being Appended to Image Path | {
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"This is the download issues I come into, about ever other time it fails...\n<img width=\"1719\" height=\"1226\" alt=\"Image\" src=\"https://github.com/user-attachments/assets/2e5b4b3e-7c13-4bad-a77c-34b47a932831\" />"
] | 2025-08-08T19:10:58 | 2025-08-12T00:54:58 | null | NONE | null | null | null | null | ### Describe the bug
I’m not sure if this is a bug or a feature and I just don’t fully understand how dataset loading is to work, but it appears there may be a bug with how locally stored Image() are being accessed. I’ve uploaded a new dataset to hugging face (rmdig/rocky_mountain_snowpack) but I’ve come into a ton of... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7732 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7732/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7732/comments | https://api.github.com/repos/huggingface/datasets/issues/7732/events | https://github.com/huggingface/datasets/issues/7732 | 3,304,673,383 | I_kwDODunzps7E-VBn | 7,732 | webdataset: key errors when `field_name` has upper case characters | {
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When using a webdataset each sample can be a collection of different "fields"
like this:
```
images17/image194.left.jpg
images17/image194.right.jpg
images17/image194.json
images17/image12.left.jpg
images17/image12.right.jpg
images17/image12.json
```
if the field_name contains upper case characte... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7731 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7731/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7731/comments | https://api.github.com/repos/huggingface/datasets/issues/7731/events | https://github.com/huggingface/datasets/issues/7731 | 3,303,637,075 | I_kwDODunzps7E6YBT | 7,731 | Add the possibility of a backend for audio decoding | {
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] | open | false | null | [] | null | [] | 2025-08-08T11:08:56 | 2025-08-08T11:08:56 | null | NONE | null | null | null | null | ### Feature request
Add the possibility of a backend for audio decoding. Before version 4.0.0, soundfile was used, and now torchcodec is used, but the problem is that torchcodec requires ffmpeg, which is problematic to install on the same colab. Therefore, I suggest adding a decoder selection when loading the dataset.... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7730 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7730/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7730/comments | https://api.github.com/repos/huggingface/datasets/issues/7730/events | https://github.com/huggingface/datasets/pull/7730 | 3,301,907,242 | PR_kwDODunzps6iqTZI | 7,730 | Grammar fix: correct "showed" to "shown" in fingerprint.py | {
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"merged_at": "2025-08-13T13:12... | This PR corrects a small grammatical issue in the outputs of fingerprint.py:
```diff
- "This warning is only showed once. Subsequent hashing failures won't be showed."
+ "This warning is only shown once. Subsequent hashing failures won't be shown."
```
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https://api.github.com/repos/huggingface/datasets/issues/7729 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7729/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7729/comments | https://api.github.com/repos/huggingface/datasets/issues/7729/events | https://github.com/huggingface/datasets/issues/7729 | 3,300,672,954 | I_kwDODunzps7EvEW6 | 7,729 | OSError: libcudart.so.11.0: cannot open shared object file: No such file or directory | {
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pip install torch==1.12.1+cpu torchaudio==0.12.1+cpu -f https://download.pytorch.org/whl/torch_stable.html
this is working fine but tell me how to install pytorch version that is fit for gpu | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7728 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7728/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7728/comments | https://api.github.com/repos/huggingface/datasets/issues/7728/events | https://github.com/huggingface/datasets/issues/7728 | 3,298,854,904 | I_kwDODunzps7EoIf4 | 7,728 | NonMatchingSplitsSizesError and ExpectedMoreSplitsError | {
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"followers_url": "https://api.github.com/users/efsotr/follower... | [] | open | false | null | [] | null | [] | 2025-08-07T04:04:50 | 2025-08-07T07:31:47 | null | NONE | null | null | null | null | ### Describe the bug
When loading dataset, the info specified by `data_files` did not overwrite the original info.
### Steps to reproduce the bug
```python
from datasets import load_dataset
traindata = load_dataset(
"allenai/c4",
"en",
data_files={"train": "en/c4-train.00000-of-... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7727 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7727/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7727/comments | https://api.github.com/repos/huggingface/datasets/issues/7727/events | https://github.com/huggingface/datasets/issues/7727 | 3,295,718,578 | I_kwDODunzps7EcKyy | 7,727 | config paths that start with ./ are not valid as hf:// accessed repos, but are valid when accessed locally | {
"login": "doctorpangloss",
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"node_id": "MDQ6VXNlcjIyMjkzMDA=",
"avatar_url": "https://avatars.githubusercontent.com/u/2229300?v=4",
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"html_url": "https://github.com/doctorpangloss",
"followers_url": "https://api.gith... | [] | open | false | null | [] | null | [] | 2025-08-06T08:21:37 | 2025-08-06T08:21:37 | null | NONE | null | null | null | null | ### Describe the bug
```
- config_name: some_config
data_files:
- split: train
path:
- images/xyz/*.jpg
```
will correctly download but
```
- config_name: some_config
data_files:
- split: train
path:
- ./images/xyz/*.jpg
```
will error with `FileNotFoundError` due to improper url joining. `loa... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7726 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7726/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7726/comments | https://api.github.com/repos/huggingface/datasets/issues/7726/events | https://github.com/huggingface/datasets/pull/7726 | 3,293,789,832 | PR_kwDODunzps6iO_oF | 7,726 | fix(webdataset): don't .lower() field_name | {
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"fixes: https://github.com/huggingface/datasets/issues/7732"
] | 2025-08-05T16:57:09 | 2025-08-13T13:12:22 | null | NONE | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7724 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7724/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7724/comments | https://api.github.com/repos/huggingface/datasets/issues/7724/events | https://github.com/huggingface/datasets/issues/7724 | 3,292,315,241 | I_kwDODunzps7EPL5p | 7,724 | Can not stepinto load_dataset.py? | {
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<!-- Failed to upload "截图 2025-08-05 17-25-18.png" --> | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7723 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7723/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7723/comments | https://api.github.com/repos/huggingface/datasets/issues/7723/events | https://github.com/huggingface/datasets/issues/7723 | 3,289,943,261 | I_kwDODunzps7EGIzd | 7,723 | Don't remove `trust_remote_code` arg!!! | {
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] | open | false | null | [] | null | [] | 2025-08-04T15:42:07 | 2025-08-04T15:42:07 | null | NONE | null | null | null | null | ### Feature request
defaulting it to False is nice balance. we need manully setting it to True in certain scenarios!
Add `trust_remote_code` arg back please!
### Motivation
defaulting it to False is nice balance. we need manully setting it to True in certain scenarios!
### Your contribution
defaulting it to Fals... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7722 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7722/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7722/comments | https://api.github.com/repos/huggingface/datasets/issues/7722/events | https://github.com/huggingface/datasets/issues/7722 | 3,289,741,064 | I_kwDODunzps7EFXcI | 7,722 | Out of memory even though using load_dataset(..., streaming=True) | {
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I am iterating over a large dataset that I load using streaming=True to avoid running out of memory. Unfortunately, I am observing that memory usage increases over time and I'm finally running in an oom.
### Steps to reproduce the bug
```
ds = load_dataset("openslr/librispeech_asr", split="tra... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7721 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7721/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7721/comments | https://api.github.com/repos/huggingface/datasets/issues/7721/events | https://github.com/huggingface/datasets/issues/7721 | 3,289,426,104 | I_kwDODunzps7EEKi4 | 7,721 | Bad split error message when using percentages | {
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"I'd like to work on this: add clearer validation/messages for percent-based splits + tests",
"The most basic example is this code:\n`load_dataset(\"openslr/librispeech_asr\", split=\"train[10%:20%]\")`\n\nThis results in this ValueError:\n```\n raise ValueError(f'Unknown split \"{split}\". Should be one of {l... | 2025-08-04T13:20:25 | 2025-08-14T14:42:24 | null | NONE | null | null | null | null | ### Describe the bug
Hi, I'm trying to download a dataset. To not load the entire dataset in memory, I split it as described [here](https://huggingface.co/docs/datasets/v4.0.0/loading#slice-splits) in 10% steps.
When doing so, the library returns this error:
raise ValueError(f"Bad split: {split}. Available splits... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7720 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7720/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7720/comments | https://api.github.com/repos/huggingface/datasets/issues/7720/events | https://github.com/huggingface/datasets/issues/7720 | 3,287,150,513 | I_kwDODunzps7D7e-x | 7,720 | Datasets 4.0 map function causing column not found | {
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"Hi, I tried to reproduce this issue on the latest `main` branch but it seems to be working correctly now. My test script (which creates a dummy dataset and applies the `.map()` function) successfully creates and accesses the new column without a `KeyError`.\n\nIt's possible this was fixed by a recent commit. The m... | 2025-08-03T12:52:34 | 2025-08-07T19:23:34 | null | NONE | null | null | null | null | ### Describe the bug
Column returned after mapping is not found in new instance of the dataset.
### Steps to reproduce the bug
Code for reproduction. After running get_total_audio_length, it is errored out due to `data` not having `duration`
```
def compute_duration(x):
return {"duration": len(x["audio"]["array"... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7719 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7719/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7719/comments | https://api.github.com/repos/huggingface/datasets/issues/7719/events | https://github.com/huggingface/datasets/issues/7719 | 3,285,928,491 | I_kwDODunzps7D20or | 7,719 | Specify dataset columns types in typehint | {
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] | open | false | null | [] | null | [] | 2025-08-02T13:22:31 | 2025-08-02T13:22:31 | null | NONE | null | null | null | null | ### Feature request
Make dataset optionaly generic to datasets usage with type annotations like it was done in `torch.Dataloader` https://github.com/pytorch/pytorch/blob/134179474539648ba7dee1317959529fbd0e7f89/torch/utils/data/dataloader.py#L131
### Motivation
In MTEB we're using a lot of datasets objects, but they... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7718 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7718/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7718/comments | https://api.github.com/repos/huggingface/datasets/issues/7718/events | https://github.com/huggingface/datasets/pull/7718 | 3,284,221,177 | PR_kwDODunzps6hvJ6R | 7,718 | add support for pyarrow string view in features | {
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"@lhoestq who do you think would be the best to have a look at this? Any pointers would be appreciated, thanks!"
] | 2025-08-01T14:58:39 | 2025-08-13T13:09:44 | null | NONE | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7717 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7717/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7717/comments | https://api.github.com/repos/huggingface/datasets/issues/7717/events | https://github.com/huggingface/datasets/issues/7717 | 3,282,855,127 | I_kwDODunzps7DrGTX | 7,717 | Cached dataset is not used when explicitly passing the cache_dir parameter | {
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"Hi, I've investigated this issue and can confirm the bug. Here are my findings:\n\n**1. Reproduction:**\nI was able to reproduce the issue on the latest `main` branch. Using the provided code snippet, `snapshot_download` correctly populates the custom `cache_dir`, but `load_dataset` with the same `cache_dir` trigg... | 2025-08-01T07:12:41 | 2025-08-05T19:19:36 | null | NONE | null | null | null | null | ### Describe the bug
Hi, we are pre-downloading a dataset using snapshot_download(). When loading this exact dataset with load_dataset() the cached snapshot is not used. In both calls, I provide the cache_dir parameter.
### Steps to reproduce the bug
```
from datasets import load_dataset, concatenate_datasets
from h... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7716 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7716/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7716/comments | https://api.github.com/repos/huggingface/datasets/issues/7716/events | https://github.com/huggingface/datasets/pull/7716 | 3,281,204,362 | PR_kwDODunzps6hk4Mq | 7,716 | typo | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7716). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-07-31T17:14:45 | 2025-07-31T17:17:15 | 2025-07-31T17:14:51 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7715 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7715/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7715/comments | https://api.github.com/repos/huggingface/datasets/issues/7715/events | https://github.com/huggingface/datasets/pull/7715 | 3,281,189,955 | PR_kwDODunzps6hk1CK | 7,715 | Docs: Use Image(mode="F") for PNG/JPEG depth maps | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7715). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-07-31T17:09:49 | 2025-07-31T17:12:23 | 2025-07-31T17:10:10 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7714 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7714/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7714/comments | https://api.github.com/repos/huggingface/datasets/issues/7714/events | https://github.com/huggingface/datasets/pull/7714 | 3,281,090,499 | PR_kwDODunzps6hkfHj | 7,714 | fix num_proc=1 ci test | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7714). 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/7713 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7713/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7713/comments | https://api.github.com/repos/huggingface/datasets/issues/7713/events | https://github.com/huggingface/datasets/pull/7713 | 3,280,813,699 | PR_kwDODunzps6hjik2 | 7,713 | Update cli.mdx to refer to the new "hf" CLI | {
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https://api.github.com/repos/huggingface/datasets/issues/7712 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7712/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7712/comments | https://api.github.com/repos/huggingface/datasets/issues/7712/events | https://github.com/huggingface/datasets/pull/7712 | 3,280,706,762 | PR_kwDODunzps6hjLF5 | 7,712 | Retry intermediate commits too | {
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https://api.github.com/repos/huggingface/datasets/issues/7711 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7711/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7711/comments | https://api.github.com/repos/huggingface/datasets/issues/7711/events | https://github.com/huggingface/datasets/pull/7711 | 3,280,471,353 | PR_kwDODunzps6hiXm0 | 7,711 | Update dataset_dict push_to_hub | {
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https://api.github.com/repos/huggingface/datasets/issues/7710 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7710/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7710/comments | https://api.github.com/repos/huggingface/datasets/issues/7710/events | https://github.com/huggingface/datasets/pull/7710 | 3,279,878,230 | PR_kwDODunzps6hgXxW | 7,710 | Concurrent IterableDataset push_to_hub | {
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https://api.github.com/repos/huggingface/datasets/issues/7709 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7709/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7709/comments | https://api.github.com/repos/huggingface/datasets/issues/7709/events | https://github.com/huggingface/datasets/issues/7709 | 3,276,677,990 | I_kwDODunzps7DTiNm | 7,709 | Release 4.0.0 breaks usage patterns of with_format | {
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"This is a breaking change with 4.0 which introduced `Column` objects. To get the numpy array from a `Column` you can `col[i]`, `col[i:j]` or even `col[:]` if you want the full column as a numpy array:\n\n```python\nfrom datasets import load_dataset\ndataset = load_dataset(...)\ndataset = dataset.with_format(\"nump... | 2025-07-30T11:34:53 | 2025-08-07T08:27:18 | 2025-08-07T08:27:18 | NONE | null | null | null | null | ### Describe the bug
Previously it was possible to access a whole column that was e.g. in numpy format via `with_format` by indexing the column. Now this possibility seems to be gone with the new Column() class. As far as I see, this makes working on a whole column (in-memory) more complex, i.e. normalizing an in-memo... | {
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https://api.github.com/repos/huggingface/datasets/issues/7708 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7708/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7708/comments | https://api.github.com/repos/huggingface/datasets/issues/7708/events | https://github.com/huggingface/datasets/pull/7708 | 3,273,614,584 | PR_kwDODunzps6hLVip | 7,708 | Concurrent push_to_hub | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7708). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-07-29T13:14:30 | 2025-07-31T10:00:50 | 2025-07-31T10:00:49 | MEMBER | null | null | false | {
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"merged_at": "2025-07-31T10:00... | Retry the step that (download + update + upload) the README.md using `create_commit(..., parent_commit=...)` if there was a commit in the meantime. This should enable concurrent `push_to_hub()` since it won't overwrite the README.md metadata anymore.
Note: we fixed an issue server side to make this work:
<details... | {
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https://api.github.com/repos/huggingface/datasets/issues/7707 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7707/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7707/comments | https://api.github.com/repos/huggingface/datasets/issues/7707/events | https://github.com/huggingface/datasets/issues/7707 | 3,271,867,998 | I_kwDODunzps7DBL5e | 7,707 | load_dataset() in 4.0.0 failed when decoding audio | {
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"Hi @lhoestq . Would you please have a look at it? I use the official NV Docker ([NV official docker image](https://catalog.ngc.nvidia.com/orgs/nvidia/containers/pytorch): `nvcr.io/nvidia/pytorch:25.06-py3`) on A100 and encountered this issue, but I don't know how to fix it.",
"Use !pip install -U datasets[audio]... | 2025-07-29T03:25:03 | 2025-08-01T05:15:45 | 2025-08-01T05:15:45 | NONE | null | null | null | null | ### Describe the bug
Cannot decode audio data.
### Steps to reproduce the bug
```python
from datasets import load_dataset
dataset = load_dataset("hf-internal-testing/librispeech_asr_demo", "clean", split="validation")
print(dataset[0]["audio"]["array"])
```
1st round run, got
```
File "/usr/local/lib/python3.1... | {
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https://api.github.com/repos/huggingface/datasets/issues/7706 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7706/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7706/comments | https://api.github.com/repos/huggingface/datasets/issues/7706/events | https://github.com/huggingface/datasets/pull/7706 | 3,271,129,240 | PR_kwDODunzps6hC5uD | 7,706 | Reimplemented partial split download support (revival of #6832) | {
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" Mario’s Patch (in PR #6832):\r\n```\r\ndef _make_split_generators_kwargs(self, prepare_split_kwargs):\r\n # Pass `pipeline` into `_split_generators()` from `prepare_split_kwargs` if\r\n # it's in the call signature of `_split_generators()`.\r\n # This allows for global preprocessing in beam.\r\n split... | 2025-07-28T19:40:40 | 2025-07-29T09:25:12 | null | CONTRIBUTOR | null | null | false | {
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} | (revival of #6832)
https://github.com/huggingface/datasets/pull/7648#issuecomment-3084050130
Close https://github.com/huggingface/datasets/issues/4101, and more
---
### PR under work!!!!
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https://api.github.com/repos/huggingface/datasets/issues/7705 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7705/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7705/comments | https://api.github.com/repos/huggingface/datasets/issues/7705/events | https://github.com/huggingface/datasets/issues/7705 | 3,269,070,499 | I_kwDODunzps7C2g6j | 7,705 | Can Not read installed dataset in dataset.load(.) | {
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"You can download the dataset locally using [huggingface_hub.snapshot_download](https://huggingface.co/docs/huggingface_hub/v0.34.3/en/package_reference/file_download#huggingface_hub.snapshot_download) and then do\n\n```python\ndataset = load_dataset(local_directory_path)\n```",
"> You can download the dataset lo... | 2025-07-28T09:43:54 | 2025-08-05T01:24:32 | null | NONE | null | null | null | null | Hi, folks, I'm newbie in huggingface dataset api.
As title, i'm facing the issue that the dataset.load api can not connect to the installed dataset.
code snippet :
<img width="572" height="253" alt="Image" src="https://github.com/user-attachments/assets/10f48aaf-d6ca-4239-b1cf-145d74f125d1" />
data path :
"/xxx/jose... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7704 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7704/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7704/comments | https://api.github.com/repos/huggingface/datasets/issues/7704/events | https://github.com/huggingface/datasets/pull/7704 | 3,265,730,177 | PR_kwDODunzps6gwtb8 | 7,704 | Fix map() example in datasets documentation: define tokenizer before use | {
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"Hi @lhoestq, just a gentle follow-up on this doc fix PR (#7704). Let me know if any changes are needed — happy to update.\r\nHope this improvement helps users run the example without confusion!",
"the modified file is the readme of the docs, not about map() specifically"
] | 2025-07-26T14:18:17 | 2025-08-13T13:23:18 | 2025-08-13T13:06:37 | NONE | null | null | false | {
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} | ## Problem
The current datasets.Dataset.map() example in the documentation demonstrates batched processing using a tokenizer object without defining or importing it. This causes a NameError when users copy and run the example as-is, breaking the expected seamless experience.
## Correction
This PR fixes the issue b... | {
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https://api.github.com/repos/huggingface/datasets/issues/7703 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7703/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7703/comments | https://api.github.com/repos/huggingface/datasets/issues/7703/events | https://github.com/huggingface/datasets/issues/7703 | 3,265,648,942 | I_kwDODunzps7Cpdku | 7,703 | [Docs] map() example uses undefined `tokenizer` — causes NameError | {
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"I've submitted PR #7704 which adds documentation to clarify the behavior of `map()` when returning `None`."
] | 2025-07-26T13:35:11 | 2025-07-27T09:44:35 | null | NONE | null | null | null | null | ## Description
The current documentation example for `datasets.Dataset.map()` demonstrates batched processing but uses a `tokenizer` object without defining or importing it. This causes an error every time it's copied.
Here is the problematic line:
```python
# process a batch of examples
>>> ds = ds.map(lambda examp... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7702 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7702/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7702/comments | https://api.github.com/repos/huggingface/datasets/issues/7702/events | https://github.com/huggingface/datasets/pull/7702 | 3,265,328,549 | PR_kwDODunzps6gvdYC | 7,702 | num_proc=0 behave like None, num_proc=1 uses one worker (not main process) and clarify num_proc documentation | {
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"I think we can support num_proc=0 and make it equivalent to `None` to make it simpler",
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7702). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",... | 2025-07-26T08:19:39 | 2025-07-31T14:52:33 | 2025-07-31T14:52:33 | CONTRIBUTOR | null | null | false | {
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"merged_at": "2025-07-31T14:52... | Fixes issue #7700
This PR makes num_proc=0 behave like None in Dataset.map(), disabling multiprocessing.
It improves UX by aligning with DataLoader(num_workers=0) behavior.
The num_proc docstring is also updated to clearly explain valid values and behavior.
@SunMarc
| {
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https://api.github.com/repos/huggingface/datasets/issues/7701 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7701/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7701/comments | https://api.github.com/repos/huggingface/datasets/issues/7701/events | https://github.com/huggingface/datasets/pull/7701 | 3,265,236,296 | PR_kwDODunzps6gvJ83 | 7,701 | Update fsspec max version to current release 2025.7.0 | {
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"@lhoestq I ran the test suite locally and while some tests were failing those failures are present on the main branch too. Could you please review and trigger the CI?",
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7701). All of your documentation changes will be reflecte... | 2025-07-26T06:47:59 | 2025-08-13T17:32:07 | 2025-07-28T11:58:11 | CONTRIBUTOR | null | null | false | {
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"merged_at": "2025-07-28T11:58... | Diffusers currently asks for a max fsspec version of `2025.3.0`. This change updates it to the current latest version. This change is mainly required to resolve conflicts with other packages in an environment. In my particular case, `aider-chat` which is a part of my environment installs `2025.5.1` which is incompatibl... | {
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https://api.github.com/repos/huggingface/datasets/issues/7700 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7700/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7700/comments | https://api.github.com/repos/huggingface/datasets/issues/7700/events | https://github.com/huggingface/datasets/issues/7700 | 3,263,922,255 | I_kwDODunzps7Ci4BP | 7,700 | [doc] map.num_proc needs clarification | {
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```
num_proc (int, optional, defaults to None) — Max number of processes when generating cache. Already cached
shards are loaded sequentially.
```
for batch:
```
num_proc (int, optional, defaults to None): The n... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7699 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7699/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7699/comments | https://api.github.com/repos/huggingface/datasets/issues/7699/events | https://github.com/huggingface/datasets/issues/7699 | 3,261,053,171 | I_kwDODunzps7CX7jz | 7,699 | Broken link in documentation for "Create a video dataset" | {
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"The URL is ok but it seems the webdataset website is down. There seems to be a related issue here: https://github.com/webdataset/webdataset/issues/155\n\nFeel free to ask the authors there for an update. Otherwise happy to witch the link to the mirror shared in that issue"
] | 2025-07-24T19:46:28 | 2025-07-25T15:27:47 | null | NONE | null | null | null | null | The link to "the [WebDataset documentation](https://webdataset.github.io/webdataset)." is broken.
https://huggingface.co/docs/datasets/main/en/video_dataset#webdataset
<img width="2048" height="264" alt="Image" src="https://github.com/user-attachments/assets/975dd10c-aad8-42fc-9fbc-de0e2747a326" /> | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7698 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7698/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7698/comments | https://api.github.com/repos/huggingface/datasets/issues/7698/events | https://github.com/huggingface/datasets/issues/7698 | 3,255,350,916 | I_kwDODunzps7CCLaE | 7,698 | NotImplementedError when using streaming=True in Google Colab environment | {
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"Hi, @Aniket17200, try upgrading datasets using '!pip install -U datasets'. I hope this will resolve your issue.",
"Thank you @tanuj-rai, it's working great "
] | 2025-07-23T08:04:53 | 2025-07-23T15:06:23 | null | NONE | null | null | null | null | ### Describe the bug
When attempting to load a large dataset (like tiiuae/falcon-refinedweb or allenai/c4) using streaming=True in a standard Google Colab notebook, the process fails with a NotImplementedError: Loading a streaming dataset cached in a LocalFileSystem is not supported yet. This issue persists even after... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7696 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7696/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7696/comments | https://api.github.com/repos/huggingface/datasets/issues/7696/events | https://github.com/huggingface/datasets/issues/7696 | 3,253,433,350 | I_kwDODunzps7B63QG | 7,696 | load_dataset() in 4.0.0 returns different audio samples compared to earlier versions breaking reproducibility | {
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"Hi ! This is because `datasets` now uses the FFmpeg-based library `torchcodec` instead of the libsndfile-based library `soundfile` to decode audio data. Those two have different decoding implementations",
"I’m all for torchcodec, good luck with the migration!"
] | 2025-07-22T17:02:17 | 2025-07-30T14:22:21 | 2025-07-30T14:22:21 | NONE | null | null | null | null | ### Describe the bug
In datasets 4.0.0 release, `load_dataset()` returns different audio samples compared to earlier versions, this breaks integration tests that depend on consistent sample data across different environments (first and second envs specified below).
### Steps to reproduce the bug
```python
from dat... | {
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https://api.github.com/repos/huggingface/datasets/issues/7695 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7695/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7695/comments | https://api.github.com/repos/huggingface/datasets/issues/7695/events | https://github.com/huggingface/datasets/pull/7695 | 3,251,904,843 | PR_kwDODunzps6gB7jS | 7,695 | Support downloading specific splits in load_dataset | {
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"I’ve completed the following steps to continue the partial split download support (from PR #6832):\r\n\r\nI did changes on top of what has been done by mario. Here are some of those changes: \r\n- Restored support for writing multiple split shards:\r\n\r\n- In _prepare_split_single, we now correctly replace JJJJJ ... | 2025-07-22T09:33:54 | 2025-07-28T17:33:30 | 2025-07-28T17:15:45 | CONTRIBUTOR | null | null | false | {
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} | This PR builds on #6832 by @mariosasko.
May close - #4101, #2538
Discussion - https://github.com/huggingface/datasets/pull/7648#issuecomment-3084050130
---
### Note - This PR is under work and frequent changes will be pushed. | {
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https://api.github.com/repos/huggingface/datasets/issues/7694 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7694/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7694/comments | https://api.github.com/repos/huggingface/datasets/issues/7694/events | https://github.com/huggingface/datasets/issues/7694 | 3,247,600,408 | I_kwDODunzps7BknMY | 7,694 | Dataset.to_json consumes excessive memory, appears to not be a streaming operation | {
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"Hi ! to_json is memory efficient and writes the data by batch:\n\nhttps://github.com/huggingface/datasets/blob/d9861d86be222884dabbd534a2db770c70c9b558/src/datasets/io/json.py#L153-L159\n\nWhat memory are you mesuring ? If you are mesuring RSS, it is likely that it counts the memory mapped data of the dataset. Mem... | 2025-07-21T07:51:25 | 2025-07-25T14:42:21 | null | NONE | null | null | null | null | ### Describe the bug
When exporting a Dataset object to a JSON Lines file using the .to_json(lines=True) method, the process consumes a very large amount of memory. The memory usage is proportional to the size of the entire Dataset object being saved, rather than being a low, constant memory operation.
This behavior ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7693 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7693/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7693/comments | https://api.github.com/repos/huggingface/datasets/issues/7693/events | https://github.com/huggingface/datasets/issues/7693 | 3,246,369,678 | I_kwDODunzps7Bf6uO | 7,693 | Dataset scripts are no longer supported, but found superb.py | {
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"I got a pretty similar issue when I try to load bigbio/neurotrial_ner dataset. \n`Dataset scripts are no longer supported, but found neurotrial_ner.py`",
"Same here. I was running this tutorial and got a similar error: https://github.com/openai/whisper/discussions/654 (I'm a first-time transformers library user)... | 2025-07-20T13:48:06 | 2025-08-11T10:30:47 | null | NONE | null | null | null | null | ### Describe the bug
Hello,
I'm trying to follow the [Hugging Face Pipelines tutorial](https://huggingface.co/docs/transformers/main_classes/pipelines) but the tutorial seems to work only on old datasets versions.
I then get the error :
```
--------------------------------------------------------------------------
... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7692 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7692/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7692/comments | https://api.github.com/repos/huggingface/datasets/issues/7692/events | https://github.com/huggingface/datasets/issues/7692 | 3,246,268,635 | I_kwDODunzps7BfiDb | 7,692 | xopen: invalid start byte for streaming dataset with trust_remote_code=True | {
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"Hi ! it would be cool to convert this dataset to Parquet. This will make it work for `datasets>=4.0`, enable the Dataset Viewer and make it more reliable to load/stream (currently it uses a loading script in python and those are known for having issues sometimes)\n\nusing `datasets==3.6.0`, here is the command to ... | 2025-07-20T11:08:20 | 2025-07-25T14:38:54 | null | NONE | null | null | null | null | ### Describe the bug
I am trying to load YODAS2 dataset with datasets==3.6.0
```
from datasets import load_dataset
next(iter(load_dataset('espnet/yodas2', name='ru000', split='train', streaming=True, trust_remote_code=True)))
```
And get `UnicodeDecodeError: 'utf-8' codec can't decode byte 0xa8 in position 1: invalid ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7691 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7691/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7691/comments | https://api.github.com/repos/huggingface/datasets/issues/7691/events | https://github.com/huggingface/datasets/issues/7691 | 3,245,547,170 | I_kwDODunzps7Bcx6i | 7,691 | Large WebDataset: pyarrow.lib.ArrowCapacityError on load() even with streaming | {
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"It seems the error occurs right here, as it tries to infer the Features: https://github.com/huggingface/datasets/blob/main/src/datasets/packaged_modules/webdataset/webdataset.py#L78-L90",
"It seems to me that if we have something that is so large that it cannot fit in pa.table, the fallback method should be to j... | 2025-07-19T18:40:27 | 2025-07-25T08:51:10 | null | NONE | null | null | null | null | ### Describe the bug
I am creating a large WebDataset-format dataset for sign language processing research, and a number of the videos are over 2GB. The instant I hit one of the shards with one of those videos, I get a ArrowCapacityError, even with streaming.
I made a config for the dataset that specifically inclu... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7690 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7690/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7690/comments | https://api.github.com/repos/huggingface/datasets/issues/7690/events | https://github.com/huggingface/datasets/pull/7690 | 3,244,380,691 | PR_kwDODunzps6fozag | 7,690 | HDF5 support | {
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"A few to-dos which I think can be left for future PRs (which I am happy to do/help with -- just this one is already huge 😄 ):\r\n- [Enum types](https://docs.h5py.org/en/stable/special.html#enumerated-types)\r\n- HDF5 [io](https://github.com/huggingface/datasets/tree/main/src/datasets/io)\r\n- [dataset-viewer](htt... | 2025-07-18T21:09:41 | 2025-08-12T19:47:56 | null | NONE | null | null | false | {
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} | This PR adds support for tabular HDF5 file(s) by converting each row to an Arrow table. It supports columns with the usual dtypes including up to 5-dimensional arrays as well as support for complex/compound types by using `Features(dict)`. All datasets within the HDF5 file should have rows on the first dimension (group... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7689 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7689/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7689/comments | https://api.github.com/repos/huggingface/datasets/issues/7689/events | https://github.com/huggingface/datasets/issues/7689 | 3,242,580,301 | I_kwDODunzps7BRdlN | 7,689 | BadRequestError for loading dataset? | {
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"Same here, for `HuggingFaceFW/fineweb`. Code that worked with no issues for the last 2 months suddenly fails today. Tried updating `datasets`, `huggingface_hub`, `fsspec` to newest versions, but the same error occurs.",
"I'm also hitting this issue, with `mandarjoshi/trivia_qa`; My dataset loading was working su... | 2025-07-18T09:30:04 | 2025-07-18T11:59:51 | 2025-07-18T11:52:29 | NONE | null | null | null | null | ### Describe the bug
Up until a couple days ago I was having no issues loading `Helsinki-NLP/europarl` and `Helsinki-NLP/un_pc`, but now suddenly I get the following error:
```
huggingface_hub.errors.BadRequestError: (Request ID: ...)
Bad request:
* Invalid input: expected array, received string * at paths * Invalid... | {
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https://api.github.com/repos/huggingface/datasets/issues/7688 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7688/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7688/comments | https://api.github.com/repos/huggingface/datasets/issues/7688/events | https://github.com/huggingface/datasets/issues/7688 | 3,238,851,443 | I_kwDODunzps7BDPNz | 7,688 | No module named "distributed" | {
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"The error ModuleNotFoundError: No module named 'datasets.distributed' means your installed datasets library is too old or incompatible with the version of Library you are using(in my case it was BEIR). The datasets.distributed module was removed in recent versions of the datasets library.\n\nDowngrade datasets to ... | 2025-07-17T09:32:35 | 2025-07-25T15:14:19 | null | NONE | null | null | null | null | ### Describe the bug
hello, when I run the command "from datasets.distributed import split_dataset_by_node", I always met the bug "No module named 'datasets.distributed" in different version like 4.0.0, 2.21.0 and so on. How can I solve this?
### Steps to reproduce the bug
1. pip install datasets
2. from datasets.di... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7687 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7687/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7687/comments | https://api.github.com/repos/huggingface/datasets/issues/7687/events | https://github.com/huggingface/datasets/issues/7687 | 3,238,760,301 | I_kwDODunzps7BC49t | 7,687 | Datasets keeps rebuilding the dataset every time i call the python script | {
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"here is the code to load the dataset form the cache:\n\n```python\ns = load_dataset('databricks/databricks-dolly-15k')['train']\n```\n\nif you pass the location of a local directory it will create a new cache based on that directory content"
] | 2025-07-17T09:03:38 | 2025-07-25T15:21:31 | null | NONE | null | null | null | null | ### Describe the bug
Every time it runs, somehow, samples increase.
This can cause a 12mb dataset to have other built versions of 400 mbs+
<img width="363" height="481" alt="Image" src="https://github.com/user-attachments/assets/766ce958-bd2b-41bc-b950-86710259bfdc" />
### Steps to reproduce the bug
`from datasets... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7686 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7686/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7686/comments | https://api.github.com/repos/huggingface/datasets/issues/7686/events | https://github.com/huggingface/datasets/issues/7686 | 3,237,201,090 | I_kwDODunzps7A88TC | 7,686 | load_dataset does not check .no_exist files in the hub cache | {
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I'm not entirely sure if this should be submitted as a bug in the `datasets` library or the `huggingface_hub` library, given it could be fixed at different levels of the stack.
The fundamental issue is that the `load_datasets` api doesn't use the `.no_exist` files in the hub cache unlike other wr... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7685 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7685/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7685/comments | https://api.github.com/repos/huggingface/datasets/issues/7685/events | https://github.com/huggingface/datasets/issues/7685 | 3,236,979,340 | I_kwDODunzps7A8GKM | 7,685 | Inconsistent range request behavior for parquet REST api | {
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"This is a weird bug, is it a range that is supposed to be satisfiable ? I mean, is it on the boundraries ?\n\nLet me know if you'r e still having the issue, in case it was just a transient bug",
"@lhoestq yes the ranges are supposed to be satisfiable, and _sometimes_ they are. \n\nThe head requests show that it ... | 2025-07-16T18:39:44 | 2025-08-11T08:16:54 | null | NONE | null | null | null | null | ### Describe the bug
First off, I do apologize if this is not the correct repo for submitting this issue. Please direct me to another one if it's more appropriate elsewhere.
The datasets rest api is inconsistently giving `416 Range Not Satisfiable` when using a range request to get portions of the parquet files. Mor... | null | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7684). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-07-15T10:13:42 | 2025-07-15T10:24:08 | 2025-07-15T10:24:07 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7683 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7683/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7683/comments | https://api.github.com/repos/huggingface/datasets/issues/7683/events | https://github.com/huggingface/datasets/pull/7683 | 3,231,553,161 | PR_kwDODunzps6e82iW | 7,683 | Convert to string when needed + faster .zstd | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7683). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-07-15T09:37:44 | 2025-07-15T10:13:58 | 2025-07-15T10:13:56 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7682 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7682/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7682/comments | https://api.github.com/repos/huggingface/datasets/issues/7682/events | https://github.com/huggingface/datasets/issues/7682 | 3,229,687,253 | I_kwDODunzps7AgR3V | 7,682 | Fail to cast Audio feature for numpy arrays in datasets 4.0.0 | {
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"thanks for reporting, I opened a PR and I'll make a patch release soon ",
"> thanks for reporting, I opened a PR and I'll make a patch release soon\n\nThank you very much @lhoestq!"
] | 2025-07-14T18:41:02 | 2025-07-15T12:10:39 | 2025-07-15T10:24:08 | NONE | null | null | null | null | ### Describe the bug
Casting features with Audio for numpy arrays - done here with `ds.map(gen_sine, features=features)` fails
in version 4.0.0 but not in version 3.6.0
### Steps to reproduce the bug
The following `uv script` should be able to reproduce the bug in version 4.0.0
and pass in version 3.6.0 on a macOS ... | {
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https://api.github.com/repos/huggingface/datasets/issues/7681 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7681/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7681/comments | https://api.github.com/repos/huggingface/datasets/issues/7681/events | https://github.com/huggingface/datasets/issues/7681 | 3,227,112,736 | I_kwDODunzps7AWdUg | 7,681 | Probabilistic High Memory Usage and Freeze on Python 3.10 | {
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A probabilistic issue encountered when processing datasets containing PIL.Image columns using the huggingface/datasets library on Python 3.10. The process occasionally experiences a sudden and significant memory spike, reaching 100% utilization, leading to a complete freeze. During this freeze, th... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7680 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7680/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7680/comments | https://api.github.com/repos/huggingface/datasets/issues/7680/events | https://github.com/huggingface/datasets/issues/7680 | 3,224,824,151 | I_kwDODunzps7ANulX | 7,680 | Question about iterable dataset and streaming | {
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"> If we have already loaded the dataset, why doing to_iterable_dataset? Does it go through the dataset faster than map-style dataset?\n\nyes, it makes a faster DataLoader for example (otherwise DataLoader uses `__getitem__` which is slower than iterating)\n\n> load_dataset(streaming=True) is useful for huge datase... | 2025-07-12T04:48:30 | 2025-08-01T13:01:48 | null | NONE | null | null | null | null | In the doc, I found the following example: https://github.com/huggingface/datasets/blob/611f5a592359ebac6f858f515c776aa7d99838b2/docs/source/stream.mdx?plain=1#L65-L78
I am confused,
1. If we have already loaded the dataset, why doing `to_iterable_dataset`? Does it go through the dataset faster than map-style datase... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7679 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7679/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7679/comments | https://api.github.com/repos/huggingface/datasets/issues/7679/events | https://github.com/huggingface/datasets/issues/7679 | 3,220,787,371 | I_kwDODunzps6_-VCr | 7,679 | metric glue breaks with 4.0.0 | {
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"I released `evaluate` 0.4.5 yesterday to fix the issue - sorry for the inconvenience:\n\n```\npip install -U evaluate\n```",
"Thanks so much, @lhoestq!"
] | 2025-07-10T21:39:50 | 2025-07-11T17:42:01 | 2025-07-11T17:42:01 | CONTRIBUTOR | null | null | null | null | ### Describe the bug
worked fine with 3.6.0, and with 4.0.0 `eval_metric = metric.compute()` in HF Accelerate breaks.
The code that fails is:
https://huggingface.co/spaces/evaluate-metric/glue/blob/v0.4.0/glue.py#L84
```
def simple_accuracy(preds, labels):
print(preds, labels)
print(f"{preds==labels}")
r... | {
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https://api.github.com/repos/huggingface/datasets/issues/7678 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7678/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7678/comments | https://api.github.com/repos/huggingface/datasets/issues/7678/events | https://github.com/huggingface/datasets/issues/7678 | 3,218,625,544 | I_kwDODunzps6_2FQI | 7,678 | To support decoding audio data, please install 'torchcodec'. | {
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"Hi ! yes you should `!pip install -U datasets[audio]` to have the required dependencies.\n\n`datasets` 4.0 now relies on `torchcodec` for audio decoding. The `torchcodec` AudioDecoder enables streaming from HF and also allows to decode ranges of audio",
"Same issues on Colab.\n\n> !pip install -U datasets[audio]... | 2025-07-10T09:43:13 | 2025-07-22T03:46:52 | 2025-07-11T05:05:42 | NONE | null | null | null | null |
In the latest version of datasets==4.0.0, i cannot print the audio data on the Colab notebook. But it works on the 3.6.0 version.
!pip install -q -U datasets huggingface_hub fsspec
from datasets import load_dataset
downloaded_dataset = load_dataset("ymoslem/MediaSpeech", "tr", split="train")
print(downloaded_datase... | {
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https://api.github.com/repos/huggingface/datasets/issues/7677 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7677/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7677/comments | https://api.github.com/repos/huggingface/datasets/issues/7677/events | https://github.com/huggingface/datasets/issues/7677 | 3,218,044,656 | I_kwDODunzps6_z3bw | 7,677 | Toxicity fails with datasets 4.0.0 | {
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"Hi ! You can fix this by upgrading `evaluate`:\n\n```\npip install -U evaluate\n```",
"Thanks, verified evaluate 0.4.5 works!"
] | 2025-07-10T06:15:22 | 2025-07-11T04:40:59 | 2025-07-11T04:40:59 | NONE | null | null | null | null | ### Describe the bug
With the latest 4.0.0 release, huggingface toxicity evaluation module fails with error: `ValueError: text input must be of type `str` (single example), `List[str]` (batch or single pretokenized example) or `List[List[str]]` (batch of pretokenized examples).`
### Steps to reproduce the bug
Repro:... | {
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https://api.github.com/repos/huggingface/datasets/issues/7676 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7676/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7676/comments | https://api.github.com/repos/huggingface/datasets/issues/7676/events | https://github.com/huggingface/datasets/issues/7676 | 3,216,857,559 | I_kwDODunzps6_vVnX | 7,676 | Many things broken since the new 4.0.0 release | {
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"Happy to take a look, do you have a list of impacted datasets ?",
"Thanks @lhoestq , related to lm-eval, at least `winogrande`, `mmlu` and `hellaswag`, based on my tests yesterday. But many others like <a href=\"https://huggingface.co/datasets/lukaemon/bbh\">bbh</a>, most probably others too. ",
"Hi @mobicham ... | 2025-07-09T18:59:50 | 2025-07-21T10:38:01 | null | NONE | null | null | null | null | ### Describe the bug
The new changes in 4.0.0 are breaking many datasets, including those from lm-evaluation-harness.
I am trying to revert back to older versions, like 3.6.0 to make the eval work but I keep getting:
``` Python
File /venv/main/lib/python3.12/site-packages/datasets/features/features.py:1474, in genera... | null | {
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"Hi ! This dataset is not in a supported format and `datasets` 4 doesn't support datasets that based on python scripts which are often source of errors. Feel free to ask the dataset authors to convert the dataset to a supported format at https://huggingface.co/datasets/mozilla-foundation/common_voice_11_0/discussio... | 2025-07-09T17:47:59 | 2025-07-22T09:35:42 | null | NONE | null | null | null | null | ### Describe the bug
I tried to download dataset but have got this error:
from datasets import load_dataset
load_dataset("mozilla-foundation/common_voice_11_0", "en", split="test", streaming=True)
---------------------------------------------------------------------------
RuntimeError Tr... | null | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7674). 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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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7673). 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/7672 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7672/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7672/comments | https://api.github.com/repos/huggingface/datasets/issues/7672/events | https://github.com/huggingface/datasets/pull/7672 | 3,215,287,164 | PR_kwDODunzps6eF1vj | 7,672 | Fix double sequence | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7672). 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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"merged_at": "2025-07-09T09:56... | ```python
>>> Features({"a": Sequence(Sequence({"c": Value("int64")}))})
{'a': List({'c': List(Value('int64'))})}
```
instead of `{'a': {'c': List(List(Value('int64')))}}` | {
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https://api.github.com/repos/huggingface/datasets/issues/7671 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7671/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7671/comments | https://api.github.com/repos/huggingface/datasets/issues/7671/events | https://github.com/huggingface/datasets/issues/7671 | 3,213,223,886 | I_kwDODunzps6_hefO | 7,671 | Mapping function not working if the first example is returned as None | {
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"Hi, map() always expect an output.\n\nIf you wish to filter examples, you should use filter(), in your case it could be something like this:\n\n```python\nds = ds.map(my_processing_function).filter(ignore_long_prompts)\n```",
"Realized this! Thanks a lot, I will close this issue then."
] | 2025-07-08T17:07:47 | 2025-07-09T12:30:32 | 2025-07-09T12:30:32 | NONE | null | null | null | null | ### Describe the bug
https://github.com/huggingface/datasets/blob/8a19de052e3d79f79cea26821454bbcf0e9dcd68/src/datasets/arrow_dataset.py#L3652C29-L3652C37
Here we can see the writer is initialized on `i==0`. However, there can be cases where in the user mapping function, the first example is filtered out (length cons... | {
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https://api.github.com/repos/huggingface/datasets/issues/7670 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7670/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7670/comments | https://api.github.com/repos/huggingface/datasets/issues/7670/events | https://github.com/huggingface/datasets/pull/7670 | 3,208,962,372 | PR_kwDODunzps6dwgOc | 7,670 | Fix audio bytes | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7670). 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/7669 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7669/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7669/comments | https://api.github.com/repos/huggingface/datasets/issues/7669/events | https://github.com/huggingface/datasets/issues/7669 | 3,203,541,091 | I_kwDODunzps6-8ihj | 7,669 | How can I add my custom data to huggingface datasets | {
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"Hey @xiagod \n\nThe easiest way to add your custom data to Hugging Face Datasets is to use the built-in load_dataset function with your local files. Some examples include:\n\nCSV files:\nfrom datasets import load_dataset\ndataset = load_dataset(\"csv\", data_files=\"my_file.csv\")\n\nJSON or JSONL files:\nfrom dat... | 2025-07-04T19:19:54 | 2025-07-05T18:19:37 | null | NONE | null | null | null | null | I want to add my custom dataset in huggingface dataset. Please guide me how to achieve that. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7668 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7668/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7668/comments | https://api.github.com/repos/huggingface/datasets/issues/7668/events | https://github.com/huggingface/datasets/issues/7668 | 3,199,039,322 | I_kwDODunzps6-rXda | 7,668 | Broken EXIF crash the whole program | {
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"There are other discussions about error handling for images decoding here : https://github.com/huggingface/datasets/issues/7632 https://github.com/huggingface/datasets/issues/7612\n\nand a PR here: https://github.com/huggingface/datasets/pull/7638 (would love your input on the proposed solution !)"
] | 2025-07-03T11:24:15 | 2025-07-03T12:27:16 | null | NONE | null | null | null | null | ### Describe the bug
When parsing this image in the ImageNet1K dataset, the `datasets` crashs whole training process just because unable to parse an invalid EXIF tag.
### Steps to reproduce the bug
Use the `datasets.Image.decod... | null | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7667). 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/7665 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7665/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7665/comments | https://api.github.com/repos/huggingface/datasets/issues/7665/events | https://github.com/huggingface/datasets/issues/7665 | 3,193,239,955 | I_kwDODunzps6-VPmT | 7,665 | Function load_dataset() misinterprets string field content as part of dataset schema when dealing with `.jsonl` files | {
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"Somehow I created the issue twice🙈 This one is an exact duplicate of #7664."
] | 2025-07-01T17:14:53 | 2025-07-01T17:17:48 | 2025-07-01T17:17:48 | NONE | null | null | null | null | ### Describe the bug
When loading a `.jsonl` file using `load_dataset("json", data_files="data.jsonl", split="train")`, the function misinterprets the content of a string field as if it were part of the dataset schema.
In my case there is a field `body:` with a string value
```
"### Describe the bug (...) ,action:... | {
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https://api.github.com/repos/huggingface/datasets/issues/7664 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7664/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7664/comments | https://api.github.com/repos/huggingface/datasets/issues/7664/events | https://github.com/huggingface/datasets/issues/7664 | 3,193,239,035 | I_kwDODunzps6-VPX7 | 7,664 | Function load_dataset() misinterprets string field content as part of dataset schema when dealing with `.jsonl` files | {
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"Hey @zdzichukowalski, I was not able to reproduce this on python 3.11.9 and datasets 3.6.0. The contents of \"body\" are correctly parsed as a string and no other fields like timestamps are created. Could you try reproducing this in a fresh environment, or posting the complete code where you encountered that stack... | 2025-07-01T17:14:32 | 2025-07-09T13:14:11 | null | NONE | null | null | null | null | ### Describe the bug
When loading a `.jsonl` file using `load_dataset("json", data_files="data.jsonl", split="train")`, the function misinterprets the content of a string field as if it were part of the dataset schema.
In my case there is a field `body:` with a string value
```
"### Describe the bug (...) ,action:... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7663 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7663/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7663/comments | https://api.github.com/repos/huggingface/datasets/issues/7663/events | https://github.com/huggingface/datasets/pull/7663 | 3,192,582,371 | PR_kwDODunzps6c6aJF | 7,663 | Custom metadata filenames | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7663). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-07-01T13:50:36 | 2025-07-01T13:58:41 | 2025-07-01T13:58:39 | MEMBER | null | null | false | {
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"merged_at": "2025-07-01T13:58... | example: https://huggingface.co/datasets/lhoestq/overlapping-subsets-imagefolder/tree/main
To make multiple subsets for an imagefolder (one metadata file per subset), e.g.
```yaml
configs:
- config_name: default
metadata_filenames:
- metadata.csv
- config_name: other
metadata_filenames:
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https://api.github.com/repos/huggingface/datasets/issues/7662 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7662/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7662/comments | https://api.github.com/repos/huggingface/datasets/issues/7662/events | https://github.com/huggingface/datasets/issues/7662 | 3,190,805,531 | I_kwDODunzps6-L9Qb | 7,662 | Applying map after transform with multiprocessing will cause OOM | {
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"Hi ! `add_column` loads the full column data in memory:\n\nhttps://github.com/huggingface/datasets/blob/bfa497b1666f4c58bd231c440d8b92f9859f3a58/src/datasets/arrow_dataset.py#L6021-L6021\n\na workaround to add the new column is to include the new data in the map() function instead, which only loads one batch at a ... | 2025-07-01T05:45:57 | 2025-07-10T06:17:40 | null | NONE | null | null | null | null | ### Describe the bug
I have a 30TB dataset. When I perform add_column and cast_column operations on it and then execute a multiprocessing map, it results in an OOM (Out of Memory) error. However, if I skip the add_column and cast_column steps and directly run the map, there is no OOM. After debugging step by step, I f... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7661 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7661/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7661/comments | https://api.github.com/repos/huggingface/datasets/issues/7661/events | https://github.com/huggingface/datasets/pull/7661 | 3,190,408,237 | PR_kwDODunzps6czBDi | 7,661 | fix del tqdm lock error | {
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"let's see which solution is found at https://github.com/huggingface/huggingface_hub/pull/3286 and do the same maybe ?"
] | 2025-07-01T02:04:02 | 2025-08-13T13:16:44 | null | NONE | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7660 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7660/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7660/comments | https://api.github.com/repos/huggingface/datasets/issues/7660/events | https://github.com/huggingface/datasets/issues/7660 | 3,189,028,251 | I_kwDODunzps6-FLWb | 7,660 | AttributeError: type object 'tqdm' has no attribute '_lock' | {
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"Deleting a class (**not instance**) attribute might be invalid in this case, which is `tqdm` doing in `ensure_lock`.\n\n```python\nfrom tqdm import tqdm as old_tqdm\n\nclass tqdm1(old_tqdm):\n def __delattr__(self, attr):\n try:\n super().__delattr__(attr)\n except AttributeError:\n ... | 2025-06-30T15:57:16 | 2025-07-03T15:14:27 | null | NONE | null | null | null | null | ### Describe the bug
`AttributeError: type object 'tqdm' has no attribute '_lock'`
It occurs when I'm trying to load datasets in thread pool.
Issue https://github.com/huggingface/datasets/issues/6066 and PR https://github.com/huggingface/datasets/pull/6067 https://github.com/huggingface/datasets/pull/6068 tried to f... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7659 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7659/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7659/comments | https://api.github.com/repos/huggingface/datasets/issues/7659/events | https://github.com/huggingface/datasets/pull/7659 | 3,187,882,217 | PR_kwDODunzps6cqkou | 7,659 | Update the beans dataset link in Preprocess | {
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https://api.github.com/repos/huggingface/datasets/issues/7658 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7658/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7658/comments | https://api.github.com/repos/huggingface/datasets/issues/7658/events | https://github.com/huggingface/datasets/pull/7658 | 3,187,800,504 | PR_kwDODunzps6cqTMs | 7,658 | Fix: Prevent loss of info.features and column_names in IterableDatasetDict.map when features is None | {
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"Hi!\r\nI haven’t included a test for this change, as the fix is quite small and targeted.\r\nPlease let me know if you’d like a test for this case or if you’d prefer to handle it during review.\r\nThanks!",
"we can't know in advance the `features` after map() (it transforms the data !), so you can reuse the `fea... | 2025-06-30T09:31:12 | 2025-07-01T16:26:30 | 2025-07-01T16:26:12 | CONTRIBUTOR | null | null | false | {
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} | This PR fixes a bug where calling `IterableDatasetDict.map()` or `IterableDataset.map()` with the default `features=None` argument would overwrite the existing `info.features` attribute with `None`. This, in turn, caused the resulting dataset to lose its schema, breaking downstream usage of attributes like `column_name... | {
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https://api.github.com/repos/huggingface/datasets/issues/7657 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7657/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7657/comments | https://api.github.com/repos/huggingface/datasets/issues/7657/events | https://github.com/huggingface/datasets/pull/7657 | 3,186,036,016 | PR_kwDODunzps6cks2E | 7,657 | feat: add subset_name as alias for name in load_dataset | {
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} | fixes #7637
This PR introduces subset_name as a user-facing alias for the name (previously `config_name`) argument in load_dataset. It aligns terminology with the Hugging Face Hub UI (which shows “Subset”), reducing confusion for new users.
Supports `subset_name` in `load_dataset()`
Adds `.subset_name` propert... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7656 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7656/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7656/comments | https://api.github.com/repos/huggingface/datasets/issues/7656/events | https://github.com/huggingface/datasets/pull/7656 | 3,185,865,686 | PR_kwDODunzps6ckPHc | 7,656 | fix(iterable): ensure MappedExamplesIterable supports state_dict for resume | {
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} | Fixes #7630
### Problem
When calling `.map()` on an `IterableDataset`, resuming from a checkpoint skips a large number of samples. This is because `MappedExamplesIterable` did not implement `state_dict()` or `load_state_dict()`, so checkpointing was not properly delegated to the underlying iterable.
### What Thi... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7654 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7654/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7654/comments | https://api.github.com/repos/huggingface/datasets/issues/7654/events | https://github.com/huggingface/datasets/pull/7654 | 3,184,770,992 | PR_kwDODunzps6chPmz | 7,654 | fix(load): strip deprecated use_auth_token from config_kwargs | {
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} | Fixes #7504
This PR resolves a compatibility error when loading datasets via `load_dataset()` using outdated arguments like `use_auth_token`.
**What was happening:**
Users passing `use_auth_token` in `load_dataset(..., use_auth_token=...)` encountered a `ValueError`: BuilderConfig ParquetConfig(...) doesn't have... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7653 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7653/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7653/comments | https://api.github.com/repos/huggingface/datasets/issues/7653/events | https://github.com/huggingface/datasets/pull/7653 | 3,184,746,093 | PR_kwDODunzps6chLmb | 7,653 | feat(load): fallback to `load_from_disk()` when loading a saved dataset directory | {
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} | ### Related Issue
Fixes #7503
Partially addresses #5044 by allowing `load_dataset()` to auto-detect and gracefully delegate to `load_from_disk()` for locally saved datasets.
---
### What does this PR do?
This PR introduces a minimal fallback mechanism in `load_dataset()` that detects when the provided `p... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7652 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7652/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7652/comments | https://api.github.com/repos/huggingface/datasets/issues/7652/events | https://github.com/huggingface/datasets/pull/7652 | 3,183,372,055 | PR_kwDODunzps6cdCnv | 7,652 | Add columns support to JSON loader for selective key filtering | {
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"I need this feature right now. It would be great if it could automatically fill in None for non-existent keys instead of reporting an error.",
"> I need this feature right now. It would be great if it could automatically fill in None for non-existent keys instead of reporting an error.\r\n\r\nHi @aihao2000, Just... | 2025-06-27T16:18:42 | 2025-08-13T13:22:17 | null | CONTRIBUTOR | null | null | false | {
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} | Fixes #7594
This PR adds support for filtering specific columns when loading datasets from .json or .jsonl files — similar to how the columns=... argument works for Parquet.
As suggested, support for the `columns=...` argument (previously available for Parquet) has now been extended to **JSON and JSONL** loading v... | null | {
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The metadata files generated by the `DatasetDict.save_to_file` function are not included in the folder_based_builder's metadata list, causing issues when only 1 actual data file is present, as described in issue #7650.
This PR adds these filenames to the builder, allowing correct loading. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7650 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7650/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7650/comments | https://api.github.com/repos/huggingface/datasets/issues/7650/events | https://github.com/huggingface/datasets/issues/7650 | 3,182,745,315 | I_kwDODunzps69tNbj | 7,650 | `load_dataset` defaults to json file format for datasets with 1 shard | {
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I currently have multiple datasets (train+validation) saved as 50MB shards. For one dataset the validation pair is small enough to fit into a single shard and this apparently causes problems when loading the dataset. I created the datasets using a DatasetDict, saved them as 50MB arrow files for st... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7649 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7649/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7649/comments | https://api.github.com/repos/huggingface/datasets/issues/7649/events | https://github.com/huggingface/datasets/pull/7649 | 3,181,481,444 | PR_kwDODunzps6cW0sQ | 7,649 | Enable parallel shard upload in push_to_hub() using num_proc | {
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"it was already added in https://github.com/huggingface/datasets/pull/7606 actually ^^'",
"Oh sure sure, Closing this one as redundant."
] | 2025-06-27T05:59:03 | 2025-07-07T18:13:53 | 2025-07-07T18:13:52 | CONTRIBUTOR | null | null | false | {
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} | Fixes #7591
### Add num_proc support to `push_to_hub()` for parallel shard upload
This PR adds support for parallel upload of dataset shards via the `num_proc` argument in `Dataset.push_to_hub()`.
📌 While the `num_proc` parameter was already present in the `push_to_hub()` signature and correctly passed to `_p... | {
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https://api.github.com/repos/huggingface/datasets/issues/7648 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7648/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7648/comments | https://api.github.com/repos/huggingface/datasets/issues/7648/events | https://github.com/huggingface/datasets/pull/7648 | 3,181,409,736 | PR_kwDODunzps6cWmSn | 7,648 | Fix misleading add_column() usage example in docstring | {
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"I believe there are other occurences of cases like this, like select_columns, select, filter, shard and flatten, could you also fix the docstring for them as well before we merge ?",
"Done! @lhoestq! I've updated the docstring examples for the following methods to clarify that they return new datasets instead of... | 2025-06-27T05:27:04 | 2025-07-28T19:42:34 | 2025-07-17T13:14:17 | CONTRIBUTOR | null | null | false | {
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"merged_at": "2025-07-17T13:14... | Fixes #7611
This PR fixes the usage example in the Dataset.add_column() docstring, which previously implied that add_column() modifies the dataset in-place.
Why:
The method returns a new dataset with the additional column, and users must assign the result to a variable to preserve the change.
This should make... | {
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https://api.github.com/repos/huggingface/datasets/issues/7647 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7647/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7647/comments | https://api.github.com/repos/huggingface/datasets/issues/7647/events | https://github.com/huggingface/datasets/issues/7647 | 3,178,952,517 | I_kwDODunzps69evdF | 7,647 | loading mozilla-foundation--common_voice_11_0 fails | {
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"@claude Could you please address this issue",
"kinda related: https://github.com/huggingface/datasets/issues/7675"
] | 2025-06-26T12:23:48 | 2025-07-10T14:49:30 | null | NONE | null | null | null | null | ### Describe the bug
Hello everyone,
i am trying to load `mozilla-foundation--common_voice_11_0` and it fails. Reproducer
```
import datasets
datasets.load_dataset("mozilla-foundation/common_voice_11_0", "en", split="test", streaming=True, trust_remote_code=True)
```
and it fails with
```
File ~/opt/envs/.../lib/py... | null | {
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"It adds automatic grouping of files into subsets based on their root name (e.g., `train0.jsonl`, `train1.jsonl` → `\"train\"`), as discussed above. The logic is integrated into `FolderBasedBuilder` and is fully tested + documented.\r\n\r\nLet me know if any changes are needed — happy to iterate!",
"Hi ! I believ... | 2025-06-26T07:01:37 | 2025-07-14T10:42:56 | null | CONTRIBUTOR | null | null | false | {
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} | Fixes #7066
This PR introduces automatic **subset-level grouping** for folder-based dataset builders by:
1. Adding a utility function `group_files_by_subset()` that clusters files by root name (ignoring digits and shard suffixes).
2. Integrating this logic into `FolderBasedBuilder._split_generators()` to yield one... | null | {
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} | This small change fixes the documentation to to be compliant with what happens in `encode_example`.
https://github.com/huggingface/datasets/blob/e71b0b19d79c7531f9b9bea7c09916b5f6157f42/src/datasets/features/features.py#L1126-L1129 | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7640 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7640/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7640/comments | https://api.github.com/repos/huggingface/datasets/issues/7640/events | https://github.com/huggingface/datasets/pull/7640 | 3,175,914,924 | PR_kwDODunzps6cEofU | 7,640 | better features repr | {
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"merged_at": "2025-06-25T14:46... | following the addition of List in #7634
before:
```python
In [3]: ds.features
Out[3]:
{'json': {'id': Value(dtype='string', id=None),
'metadata:transcript': [{'end': Value(dtype='float64', id=None),
'start': Value(dtype='float64', id=None),
'transcript': Value(dtype='string', id=None),
'wor... | {
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https://api.github.com/repos/huggingface/datasets/issues/7639 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7639/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7639/comments | https://api.github.com/repos/huggingface/datasets/issues/7639/events | https://github.com/huggingface/datasets/pull/7639 | 3,175,616,169 | PR_kwDODunzps6cDoAf | 7,639 | fix save_infos | {
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https://api.github.com/repos/huggingface/datasets/issues/7638 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7638/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7638/comments | https://api.github.com/repos/huggingface/datasets/issues/7638/events | https://github.com/huggingface/datasets/pull/7638 | 3,172,645,391 | PR_kwDODunzps6b5vpZ | 7,638 | Add ignore_decode_errors option to Image feature for robust decoding #7612 | {
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"cc @lhoestq",
"I think splitting the error handling for the main image decoding process and the metadata decoding process is possibly a bit nicer, as some images do render correctly, but their metadata might be invalid and cause the pipeline to fail, which I've encountered recently as in #7668.\r\n\r\nThe [`deco... | 2025-06-24T16:47:51 | 2025-07-04T07:07:30 | null | CONTRIBUTOR | null | null | false | {
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} | This PR implements support for robust image decoding in the `Image` feature, as discussed in issue #7612.
## 🔧 What was added
- A new boolean field: `ignore_decode_errors` (default: `False`)
- If set to `True`, any exceptions during decoding will be caught, and `None` will be returned instead of raising an error
... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7637 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7637/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7637/comments | https://api.github.com/repos/huggingface/datasets/issues/7637/events | https://github.com/huggingface/datasets/issues/7637 | 3,171,883,522 | I_kwDODunzps69DxoC | 7,637 | Introduce subset_name as an alias of config_name | {
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"I second this! When you come from the Hub, the intuitive question is \"how do I set the subset name\", and it's not easily answered from the docs: `subset_name` would answer this directly.",
"I've submitted PR [#7657](https://github.com/huggingface/datasets/pull/7657) to introduce subset_name as a user-facing al... | 2025-06-24T12:49:01 | 2025-07-01T16:08:33 | null | MEMBER | null | null | null | null | ### Feature request
Add support for `subset_name` as an alias for `config_name` in the datasets library and related tools (such as loading scripts, documentation, and metadata).
### Motivation
The Hugging Face Hub dataset viewer displays a column named **"Subset"**, which refers to what is currently technically call... | null | {
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