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https://api.github.com/repos/huggingface/datasets/issues/6595 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6595/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6595/comments | https://api.github.com/repos/huggingface/datasets/issues/6595/events | https://github.com/huggingface/datasets/issues/6595 | 2,082,896,148 | I_kwDODunzps58JnkU | 6,595 | Loading big dataset raises pyarrow.lib.ArrowNotImplementedError 2 | {
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"Hi ! I think the issue comes from the \"float16\" features that are not supported yet in Parquet\r\n\r\nFeel free to open an issue in `pyarrow` about this. In the meantime, I'd encourage you to use \"float32\" for your \"pooled_prompt_embeds\" and \"prompt_embeds\" features.\r\n\r\nYou can cast them to \"float32\"... | 2024-01-16T02:03:09 | 2024-01-27T18:26:33 | 2024-01-26T02:28:32 | NONE | null | null | null | null | ### Describe the bug
I'm aware of the issue #5695 .
I'm using a modified SDXL trainer: https://github.com/kopyl/diffusers/blob/5e70f604155aeecee254a5c63c5e4236ad4a0d3d/examples/text_to_image/train_text_to_image_sdxl.py#L1027C16-L1027C16
So i
1. Map dataset
2. Save to disk
3. Try to upload:
```
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https://api.github.com/repos/huggingface/datasets/issues/6484 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6484/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6484/comments | https://api.github.com/repos/huggingface/datasets/issues/6484/events | https://github.com/huggingface/datasets/issues/6484 | 2,033,333,294 | I_kwDODunzps55MjQu | 6,484 | [Feature Request] Dataset versioning | {
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"Hello @kenfus, this is meant to be possible to do yes. Let me ping @lhoestq or @mariosasko from the `datasets` team (`huggingface_hub` is only the underlying library to download files from the Hub but here it looks more like a `datasets` problem). ",
"Hi! https://github.com/huggingface/datasets/pull/6459 will fi... | 2023-12-08T16:01:35 | 2023-12-11T19:13:46 | null | NONE | null | null | null | null | **Is your feature request related to a problem? Please describe.**
I am working on a project, where I would like to test different preprocessing methods for my ML-data. Thus, I would like to work a lot with revisions and compare them. Currently, I was not able to make it work with the revision keyword because it was n... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7797 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7797/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7797/comments | https://api.github.com/repos/huggingface/datasets/issues/7797/events | https://github.com/huggingface/datasets/pull/7797 | 3,473,011,621 | PR_kwDODunzps6rhtf_ | 7,797 | Datasets: Add WMT21 & WMT22 loaders (basic TSV loaders, sample data, tests) | {
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"closing since datasets should be added on https://huggingface.co directly"
] | 2025-10-01T10:46:01 | 2025-10-10T15:33:25 | 2025-10-10T15:33:25 | NONE | null | null | false | {
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} | - Implemented TSV-based dataset loaders:
- WMT21Dataset (local_datasets/wmt21/wmt21_dataset.py)
- WMT22Dataset (local_datasets/wmt22/wmt22_dataset.py)
These classes load source-target pairs from .tsv files for train, validation, and test splits.
- Created sample dummy data for both datasets:
- dummy_da... | {
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https://api.github.com/repos/huggingface/datasets/issues/7381 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7381/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7381/comments | https://api.github.com/repos/huggingface/datasets/issues/7381/events | https://github.com/huggingface/datasets/issues/7381 | 2,815,649,092 | I_kwDODunzps6n02VE | 7,381 | Iterating over values of a column in the IterableDataset | {
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"I'd be in favor of that ! I saw many people implementing their own iterables that wrap a dataset just to iterate on a single column, that would make things more practical.\n\nKinda related: https://github.com/huggingface/datasets/issues/5847",
"(For anyone's information, I'm going on vacation for the next 3 week... | 2025-01-28T13:17:36 | 2025-05-22T18:00:04 | 2025-05-22T18:00:04 | CONTRIBUTOR | null | null | null | null | ### Feature request
I would like to be able to iterate (and re-iterate if needed) over a column of an `IterableDataset` instance. The following example shows the supposed API:
```python
def gen():
yield {"text": "Good", "label": 0}
yield {"text": "Bad", "label": 1}
ds = IterableDataset.from_generator(gen)
tex... | {
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https://api.github.com/repos/huggingface/datasets/issues/6035 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6035/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6035/comments | https://api.github.com/repos/huggingface/datasets/issues/6035/events | https://github.com/huggingface/datasets/pull/6035 | 1,805,087,687 | PR_kwDODunzps5Vh_QR | 6,035 | Dataset representation | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6035). All of your documentation changes will be reflected on that endpoint."
] | 2023-07-14T15:42:37 | 2023-07-19T19:41:35 | null | NONE | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7270 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7270/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7270/comments | https://api.github.com/repos/huggingface/datasets/issues/7270/events | https://github.com/huggingface/datasets/pull/7270 | 2,627,107,016 | PR_kwDODunzps6AiTJm | 7,270 | Release: 3.1.0 | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7270). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2024-10-31T15:10:01 | 2024-10-31T15:14:23 | 2024-10-31T15:14:20 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/6435 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6435/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6435/comments | https://api.github.com/repos/huggingface/datasets/issues/6435/events | https://github.com/huggingface/datasets/issues/6435 | 2,000,690,513 | I_kwDODunzps53QB1R | 6,435 | Cannot re-initialize CUDA in forked subprocess. To use CUDA with multiprocessing, you must use the 'spawn' start method | {
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"[This doc section](https://huggingface.co/docs/datasets/main/en/process#multiprocessing) explains how to modify the script to avoid this error.",
"@mariosasko thank you very much, i'll check it",
"@mariosasko no it does not\r\n\r\n`Dataset.filter() got an unexpected keyword argument 'with_rank'`"
] | 2023-11-19T04:21:16 | 2024-01-27T17:14:20 | 2023-12-04T16:57:43 | NONE | null | null | null | null | ### Describe the bug
1. I ran dataset mapping with `num_proc=6` in it and got this error:
`RuntimeError: Cannot re-initialize CUDA in forked subprocess. To use CUDA with multiprocessing, you must use the 'spawn' start method`
I can't actually find a way to run multi-GPU dataset mapping. Can you help?
### Steps to... | {
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https://api.github.com/repos/huggingface/datasets/issues/7738 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7738/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7738/comments | https://api.github.com/repos/huggingface/datasets/issues/7738/events | https://github.com/huggingface/datasets/issues/7738 | 3,328,948,690 | I_kwDODunzps7Ga7nS | 7,738 | Allow saving multi-dimensional ndarray with dynamic shapes | {
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"I agree this would be super valuable.\n\nIt looks like this was discussed a few years ago in https://github.com/huggingface/datasets/issues/5272#issuecomment-1550200824 but there were some issues. Those PRs are merged now and it looks like Arrow [officially supports](https://arrow.apache.org/docs/format/CanonicalE... | 2025-08-18T02:23:51 | 2025-08-26T15:25:02 | null | NONE | null | null | null | null | ### Feature request
I propose adding a dedicated feature to the datasets library that allows for the efficient storage and retrieval of multi-dimensional ndarray with dynamic shapes. Similar to how Image columns handle variable-sized images, this feature would provide a structured way to store array data where the dim... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/6591 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6591/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6591/comments | https://api.github.com/repos/huggingface/datasets/issues/6591/events | https://github.com/huggingface/datasets/issues/6591 | 2,082,378,957 | I_kwDODunzps58HpTN | 6,591 | The datasets models housed in Dropbox can't support a lot of users downloading them | {
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"Hi! Indeed, Dropbox is not a reliable host. I've just merged https://huggingface.co/datasets/PolyAI/minds14/discussions/24 to fix this by hosting the data files inside the repo."
] | 2024-01-15T16:43:38 | 2024-01-22T23:18:09 | 2024-01-22T23:18:09 | NONE | null | null | null | null | ### Describe the bug
I'm using the datasets
```
from datasets import load_dataset, Audio
dataset = load_dataset("PolyAI/minds14", name="en-US", split="train")
```
And it seems that sometimes when I imagine a lot of users are accessing the same resources, the Dropbox host fails:
`raise ConnectionError(... | {
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https://api.github.com/repos/huggingface/datasets/issues/5939 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/5939/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/5939/comments | https://api.github.com/repos/huggingface/datasets/issues/5939/events | https://github.com/huggingface/datasets/issues/5939 | 1,749,955,883 | I_kwDODunzps5oTjUr | 5,939 | . | {
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https://api.github.com/repos/huggingface/datasets/issues/7790 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7790/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7790/comments | https://api.github.com/repos/huggingface/datasets/issues/7790/events | https://github.com/huggingface/datasets/pull/7790 | 3,453,679,876 | PR_kwDODunzps6qgvjv | 7,790 | update tips in docs | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7790). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"cc @mishig25"
] | 2025-09-25T13:36:02 | 2025-09-25T13:39:28 | 2025-09-25T13:39:22 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7459 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7459/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7459/comments | https://api.github.com/repos/huggingface/datasets/issues/7459/events | https://github.com/huggingface/datasets/pull/7459 | 2,925,491,766 | PR_kwDODunzps6O8pWp | 7,459 | Fix data_files filtering | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7459). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-03-17T15:20:21 | 2025-03-17T15:25:56 | 2025-03-17T15:25:54 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/6226 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6226/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6226/comments | https://api.github.com/repos/huggingface/datasets/issues/6226/events | https://github.com/huggingface/datasets/pull/6226 | 1,887,462,591 | PR_kwDODunzps5Z3arq | 6,226 | Add push_to_hub with multiple configs docs | {
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"_The documentation is not available anymore as the PR was closed or merged._",
"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | rea... | 2023-09-08T11:08:55 | 2023-09-08T12:29:21 | 2023-09-08T12:20:51 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/6087 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6087/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6087/comments | https://api.github.com/repos/huggingface/datasets/issues/6087/events | https://github.com/huggingface/datasets/issues/6087 | 1,825,133,741 | I_kwDODunzps5syVSt | 6,087 | fsspec dependency is set too low | {
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"Thanks for reporting! A PR with a fix has just been merged."
] | 2023-07-27T20:08:22 | 2023-07-28T10:07:56 | 2023-07-28T10:07:03 | NONE | null | null | null | null | ### Describe the bug
fsspec.callbacks.TqdmCallback (used in https://github.com/huggingface/datasets/blob/73bed12ecda17d1573fd3bf73ed5db24d3622f86/src/datasets/utils/file_utils.py#L338) was first released in fsspec [2022.3.0](https://github.com/fsspec/filesystem_spec/releases/tag/2022.3.0, commit where it was added: ht... | {
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https://api.github.com/repos/huggingface/datasets/issues/7070 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7070/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7070/comments | https://api.github.com/repos/huggingface/datasets/issues/7070/events | https://github.com/huggingface/datasets/issues/7070 | 2,430,285,235 | I_kwDODunzps6Q2zWz | 7,070 | how set_transform affects batch size? | {
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I am trying to fine-tune w2v-bert for ASR task. Since my dataset is so big, I preferred to use the on-the-fly method with set_transform. So i change the preprocessing function to this:
```
def prepare_dataset(batch):
input_features = processor(batch["audio"], sampling_rate=16000).input_feat... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7370 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7370/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7370/comments | https://api.github.com/repos/huggingface/datasets/issues/7370/events | https://github.com/huggingface/datasets/pull/7370 | 2,787,972,786 | PR_kwDODunzps6HwAu7 | 7,370 | Support faster processing using pandas or polars functions in `IterableDataset.map()` | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7370). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"merging this and will make some docs and communications around using polars for optimiz... | 2025-01-14T18:14:13 | 2025-01-31T11:08:15 | 2025-01-30T13:30:57 | MEMBER | null | null | false | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/7... | Following the polars integration :)
Allow super fast processing using pandas or polars functions in `IterableDataset.map()` by adding support to pandas and polars formatting in `IterableDataset`
```python
import polars as pl
from datasets import Dataset
ds = Dataset.from_dict({"i": range(10)}).to_iterable_da... | {
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https://api.github.com/repos/huggingface/datasets/issues/6060 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6060/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6060/comments | https://api.github.com/repos/huggingface/datasets/issues/6060/events | https://github.com/huggingface/datasets/issues/6060 | 1,816,614,120 | I_kwDODunzps5sR1To | 6,060 | Dataset.map() execute twice when in PyTorch DDP mode | {
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"Sorry for asking a duplicate question about `num_proc`, I searched the forum and find the solution.\r\n\r\nBut I still can't make the trick with `torch.distributed.barrier()` to only map at the main process work. The [post on forum]( https://discuss.huggingface.co/t/slow-processing-with-map-when-using-deepspeed-or... | 2023-07-22T05:06:43 | 2024-01-22T18:35:12 | 2024-01-22T18:35:12 | NONE | null | null | null | null | ### Describe the bug
I use `torchrun --standalone --nproc_per_node=2 train.py` to start training. And write the code following the [docs](https://huggingface.co/docs/datasets/process#distributed-usage). The trick about using `torch.distributed.barrier()` to only execute map at the main process doesn't always work. W... | {
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https://api.github.com/repos/huggingface/datasets/issues/6462 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6462/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6462/comments | https://api.github.com/repos/huggingface/datasets/issues/6462/events | https://github.com/huggingface/datasets/pull/6462 | 2,019,238,388 | PR_kwDODunzps5gz68T | 6,462 | Missing DatasetNotFoundError | {
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"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_a... | 2023-11-30T18:09:43 | 2023-11-30T18:36:40 | 2023-11-30T18:30:30 | MEMBER | null | null | false | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/6... | continuation of https://github.com/huggingface/datasets/pull/6431
this should fix the CI in https://github.com/huggingface/datasets/pull/6458 too | {
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https://api.github.com/repos/huggingface/datasets/issues/7213 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7213/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7213/comments | https://api.github.com/repos/huggingface/datasets/issues/7213/events | https://github.com/huggingface/datasets/issues/7213 | 2,578,675,565 | I_kwDODunzps6Zs3dt | 7,213 | Add with_rank to Dataset.from_generator | {
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] | open | false | null | [] | null | [] | 2024-10-10T12:15:29 | 2024-10-10T12:17:11 | null | NONE | null | null | null | null | ### Feature request
Add `with_rank` to `Dataset.from_generator` similar to `Dataset.map` and `Dataset.filter`.
### Motivation
As for `Dataset.map` and `Dataset.filter`, this is useful when creating cache files using multi-GPU, where the rank can be used to select GPU IDs. For now, rank can be added in the `ge... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7173 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7173/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7173/comments | https://api.github.com/repos/huggingface/datasets/issues/7173/events | https://github.com/huggingface/datasets/pull/7173 | 2,549,882,529 | PR_kwDODunzps58wjjc | 7,173 | Release: 3.0.1 | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7173). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2024-09-26T08:25:54 | 2024-09-26T08:28:29 | 2024-09-26T08:26:03 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/6220 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6220/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6220/comments | https://api.github.com/repos/huggingface/datasets/issues/6220/events | https://github.com/huggingface/datasets/pull/6220 | 1,884,285,980 | PR_kwDODunzps5ZspRb | 6,220 | Set dev version | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6220). All of your documentation changes will be reflected on that endpoint.",
"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchma... | 2023-09-06T15:40:33 | 2023-09-06T15:52:33 | 2023-09-06T15:41:13 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/6031 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6031/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6031/comments | https://api.github.com/repos/huggingface/datasets/issues/6031/events | https://github.com/huggingface/datasets/issues/6031 | 1,804,183,858 | I_kwDODunzps5riaky | 6,031 | Argument type for map function changes when using `input_columns` for `IterableDataset` | {
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"Yes, this is intended."
] | 2023-07-14T05:11:14 | 2023-07-14T14:44:15 | 2023-07-14T14:44:15 | NONE | null | null | null | null | ### Describe the bug
I wrote `tokenize(examples)` function as an argument for `map` function for `IterableDataset`.
It process dictionary type `examples` as a parameter.
It is used in `train_dataset = train_dataset.map(tokenize, batched=True)`
No error is raised.
And then, I found some unnecessary keys and val... | {
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https://api.github.com/repos/huggingface/datasets/issues/6401 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6401/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6401/comments | https://api.github.com/repos/huggingface/datasets/issues/6401/events | https://github.com/huggingface/datasets/issues/6401 | 1,988,710,061 | I_kwDODunzps52iU6t | 6,401 | dataset = load_dataset("Hyperspace-Technologies/scp-wiki-text") not working | {
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"Seems like it's a problem with the dataset, since in the [README](https://huggingface.co/datasets/Hyperspace-Technologies/scp-wiki-text/blob/main/README.md) the validation is not specified. Try cloning the dataset, removing the README (or validation split), and loading it locally/ ",
"@VarunNSrivastava thanks br... | 2023-11-11T04:09:07 | 2023-11-20T17:45:20 | 2023-11-20T17:45:20 | NONE | null | null | null | null | ### Describe the bug
```
(datasets) mruserbox@guru-X99:/media/10TB_HHD/_LLM_DATASETS$ python dataset.py
Downloading readme: 100%|███████████████████████████████████| 360/360 [00:00<00:00, 2.16MB/s]
Downloading data: 100%|█████████████████████████████████| 65.1M/65.1M [00:19<00:00, 3.38MB/s]
Downloading data: 100... | {
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https://api.github.com/repos/huggingface/datasets/issues/7830 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7830/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7830/comments | https://api.github.com/repos/huggingface/datasets/issues/7830/events | https://github.com/huggingface/datasets/pull/7830 | 3,549,769,999 | PR_kwDODunzps6viIQf | 7,830 | fix ci compressionfs | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7830). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-10-24T14:29:00 | 2025-10-24T14:46:34 | 2025-10-24T14:46:29 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/6367 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6367/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6367/comments | https://api.github.com/repos/huggingface/datasets/issues/6367/events | https://github.com/huggingface/datasets/pull/6367 | 1,971,015,861 | PR_kwDODunzps5eQy1D | 6,367 | Fix time measuring snippet in docs | {
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"_The documentation is not available anymore as the PR was closed or merged._",
"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | rea... | 2023-10-31T17:57:17 | 2023-10-31T18:35:53 | 2023-10-31T18:24:02 | COLLABORATOR | null | null | false | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/6... | Fix https://discuss.huggingface.co/t/attributeerror-enter/60509 | {
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https://api.github.com/repos/huggingface/datasets/issues/7807 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7807/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7807/comments | https://api.github.com/repos/huggingface/datasets/issues/7807/events | https://github.com/huggingface/datasets/pull/7807 | 3,499,765,725 | PR_kwDODunzps6s7c_U | 7,807 | typo | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7807). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-10-09T16:06:47 | 2025-10-09T16:16:31 | 2025-10-09T16:06:58 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/6746 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6746/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6746/comments | https://api.github.com/repos/huggingface/datasets/issues/6746/events | https://github.com/huggingface/datasets/issues/6746 | 2,198,993,949 | I_kwDODunzps6DEfwd | 6,746 | ExpectedMoreSplits error when loading C4 dataset | {
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"Hi ! We updated the `allenai/c4` repository to allow people to specify which language to load easily (the the [c4 dataset page](https://huggingface.co/datasets/allenai/c4))\r\n\r\nTo fix this issue **you can update** `datasets` and remove the mention of the legacy configuration name \"allenai--c4\":\r\n\r\n```pyth... | 2024-03-21T02:53:04 | 2024-09-18T19:57:14 | 2024-07-29T07:21:08 | NONE | null | null | null | null | ### Describe the bug
I encounter bug when running the example command line
```python
python main.py \
--model decapoda-research/llama-7b-hf \
--prune_method wanda \
--sparsity_ratio 0.5 \
--sparsity_type unstructured \
--save out/llama_7b/unstructured/wanda/
```
The bug occurred ... | {
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https://api.github.com/repos/huggingface/datasets/issues/5925 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/5925/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/5925/comments | https://api.github.com/repos/huggingface/datasets/issues/5925/events | https://github.com/huggingface/datasets/issues/5925 | 1,741,941,436 | I_kwDODunzps5n0-q8 | 5,925 | Breaking API change in datasets.list_datasets caused by change in HfApi.list_datasets | {
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Hi all,
after an update of the `datasets` library, we observer crashes in our code. We relied on `datasets.list_datasets` returning a `list`. Now, after the API of the HfApi.list_datasets was changed and it returns a `list` instead of an `Iterable`, the `datasets.list_datasets` now sometimes re... | {
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https://api.github.com/repos/huggingface/datasets/issues/7804 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7804/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7804/comments | https://api.github.com/repos/huggingface/datasets/issues/7804/events | https://github.com/huggingface/datasets/issues/7804 | 3,498,534,596 | I_kwDODunzps7Qh2bE | 7,804 | Support scientific data formats | {
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"Please add the support for `Zarr`! That's what we use in the Bioimaging community. It is crucial, because raw upload of a *single* bio image can take _terrabytes in memory_!\n\nThe python library would be `bioio` or `zarr`:\n- [ ] Zarr: `bioio` or `zarr`\n\nSee a [Zarr example](https://ome.github.io/ome-ngff-valid... | 2025-10-09T10:18:24 | 2025-10-31T14:41:29 | null | MEMBER | null | null | null | null | List of formats and libraries we can use to load the data in `datasets`:
- [ ] DICOMs: pydicom
- [x] NIfTIs: nibabel
- [ ] WFDB: wfdb
cc @zaRizk7 for viz
Feel free to comment / suggest other formats and libs you'd like to see or to share your interest in one of the mentioned format | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7363 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7363/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7363/comments | https://api.github.com/repos/huggingface/datasets/issues/7363/events | https://github.com/huggingface/datasets/issues/7363 | 2,774,090,012 | I_kwDODunzps6lWUEc | 7,363 | ImportError: To support decoding images, please install 'Pillow'. | {
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"what's your `pip show Pillow` output",
"same issue.. my pip show Pillow output as below:\n\n```\nName: pillow\nVersion: 11.1.0\nSummary: Python Imaging Library (Fork)\nHome-page: https://python-pillow.github.io/\nAuthor: \nAuthor-email: \"Jeffrey A. Clark\" <aclark@aclark.net>\nLicense: MIT-CMU\nLocation: [/opt/... | 2025-01-08T02:22:57 | 2025-05-28T14:56:53 | null | NONE | null | null | null | null | ### Describe the bug
Following this tutorial locally using a macboko and VSCode: https://huggingface.co/docs/diffusers/en/tutorials/basic_training
This line of code: for i, image in enumerate(dataset[:4]["image"]):
throws: ImportError: To support decoding images, please install 'Pillow'.
Pillow is installed.
###... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/6324 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6324/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6324/comments | https://api.github.com/repos/huggingface/datasets/issues/6324/events | https://github.com/huggingface/datasets/issues/6324 | 1,955,126,687 | I_kwDODunzps50iN2f | 6,324 | Conversion to Arrow fails due to wrong type heuristic | {
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"Unlike Pandas, Arrow is strict with types, so converting the problematic strings to ints (or ints to strings) to ensure all the values have the same type is the only fix. \r\n\r\nJSON support has been requested in Arrow [here](https://github.com/apache/arrow/issues/32538), but I don't expect this to be implemented... | 2023-10-20T23:20:58 | 2023-10-23T20:52:57 | 2023-10-23T20:52:57 | NONE | null | null | null | null | ### Describe the bug
I have a list of dictionaries with valid/JSON-serializable values.
One key is the denominator for a paragraph. In 99.9% of cases its a number, but there are some occurences of '1a', '2b' and so on.
If trying to convert this list to a dataset with `Dataset.from_list()`, I always get
`ArrowI... | {
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https://api.github.com/repos/huggingface/datasets/issues/7323 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7323/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7323/comments | https://api.github.com/repos/huggingface/datasets/issues/7323/events | https://github.com/huggingface/datasets/issues/7323 | 2,736,008,698 | I_kwDODunzps6jFC36 | 7,323 | Unexpected cache behaviour using load_dataset | {
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"Hi ! Since `datasets` 3.x, the `datasets` specific files are in `cache_dir=` and the HF files are cached using `huggingface_hub` and you can set its cache directory using the `HF_HOME` environment variable.\r\n\r\nThey are independent, for example you can delete the Hub cache (containing downloaded files) but sti... | 2024-12-12T14:03:00 | 2025-01-31T11:34:24 | 2025-01-31T11:34:24 | NONE | null | null | null | null | ### Describe the bug
Following the (Cache management)[https://huggingface.co/docs/datasets/en/cache] docu and previous behaviour from datasets version 2.18.0, one is able to change the cache directory. Previously, all downloaded/extracted/etc files were found in this folder. As i have recently update to the latest v... | {
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https://api.github.com/repos/huggingface/datasets/issues/6797 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6797/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6797/comments | https://api.github.com/repos/huggingface/datasets/issues/6797/events | https://github.com/huggingface/datasets/pull/6797 | 2,234,890,097 | PR_kwDODunzps5sNYKZ | 6,797 | Fix CI test_load_dataset_distributed_with_script | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6797). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"Finally:\r\n- the initial issue seems it was temporary\r\n- there is a different issue ... | 2024-04-10T06:57:48 | 2024-04-10T08:25:00 | 2024-04-10T08:18:01 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/6862 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6862/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6862/comments | https://api.github.com/repos/huggingface/datasets/issues/6862/events | https://github.com/huggingface/datasets/pull/6862 | 2,276,763,745 | PR_kwDODunzps5ubOoL | 6,862 | Fix load_dataset for data_files with protocols other than HF | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6862). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>... | 2024-05-03T01:43:47 | 2024-07-23T14:37:08 | 2024-07-23T14:30:09 | CONTRIBUTOR | null | null | false | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/6... | Fixes huggingface/datasets/issues/6598
I've added a new test case and a solution. Before applying the solution the test case was failing with the same error described in the linked issue.
MRE:
```
pip install "datasets[s3]"
python -c "from datasets import load_dataset; load_dataset('csv', data_files={'train': ... | {
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https://api.github.com/repos/huggingface/datasets/issues/6314 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6314/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6314/comments | https://api.github.com/repos/huggingface/datasets/issues/6314/events | https://github.com/huggingface/datasets/pull/6314 | 1,951,684,763 | PR_kwDODunzps5dPo25 | 6,314 | Support creating new branch in push_to_hub | {
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https://api.github.com/repos/huggingface/datasets/issues/7176 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7176/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7176/comments | https://api.github.com/repos/huggingface/datasets/issues/7176/events | https://github.com/huggingface/datasets/pull/7176 | 2,551,025,564 | PR_kwDODunzps580hTn | 7,176 | fix grammar in fingerprint.py | {
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} | I see this error all the time and it was starting to get to me. | null | {
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https://api.github.com/repos/huggingface/datasets/issues/6717 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6717/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6717/comments | https://api.github.com/repos/huggingface/datasets/issues/6717/events | https://github.com/huggingface/datasets/issues/6717 | 2,168,726,432 | I_kwDODunzps6BRCOg | 6,717 | `remove_columns` method used with a streaming enable dataset mode produces a LibsndfileError on multichannel audio | {
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"And it also works well with `dataset = dataset.select_columns([\"audio\"])`",
"Same issue here, disable stream=True fix the problem"
] | 2024-03-05T09:33:26 | 2024-08-14T17:54:20 | null | NONE | null | null | null | null | ### Describe the bug
When loading a HF dataset in streaming mode and removing some columns, it is impossible to load a sample if the audio contains more than one channel. I have the impression that the time axis and channels are swapped or concatenated.
### Steps to reproduce the bug
Minimal error code:
```python
... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/6006 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6006/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6006/comments | https://api.github.com/repos/huggingface/datasets/issues/6006/events | https://github.com/huggingface/datasets/issues/6006 | 1,788,855,582 | I_kwDODunzps5qn8Ue | 6,006 | NotADirectoryError when loading gigawords | {
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"issue due to corrupted download files. resolved after cleaning download cache. sorry for any inconvinence."
] | 2023-07-05T06:23:41 | 2023-07-05T06:31:02 | 2023-07-05T06:31:01 | NONE | null | null | null | null | ### Describe the bug
got `NotADirectoryError` whtn loading gigawords dataset
### Steps to reproduce the bug
When running
```
import datasets
datasets.load_dataset('gigaword')
```
Got the following exception:
```bash
Traceback (most recent call last): ... | {
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https://api.github.com/repos/huggingface/datasets/issues/6374 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6374/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6374/comments | https://api.github.com/repos/huggingface/datasets/issues/6374/events | https://github.com/huggingface/datasets/issues/6374 | 1,973,857,428 | I_kwDODunzps51pqyU | 6,374 | CI is broken: TypeError: Couldn't cast array | {
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```
FAILED tests/test_table.py::test_cast_sliced_fixed_size_array_to_features - TypeError: Couldn't cast array of type
fixed_size_list<item: int32>[3]
to
Sequence(feature=Value(dtype='int64', id=None), length=3, id=None)
``` | {
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https://api.github.com/repos/huggingface/datasets/issues/6488 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6488/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6488/comments | https://api.github.com/repos/huggingface/datasets/issues/6488/events | https://github.com/huggingface/datasets/issues/6488 | 2,035,899,898 | I_kwDODunzps55WV36 | 6,488 | 429 Client Error | {
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"Transferring repos as this is a datasets issue ",
"I'm getting a similar issue even though I've already downloaded the dataset 😅 \r\n\r\n```\r\nhuggingface_hub.utils._errors.HfHubHTTPError: 429 Client Error: Too Many Requests for url: https://huggingface.co/api/datasets/HuggingFaceM4/WebSight\r\n```"
] | 2023-12-11T15:06:01 | 2024-06-20T05:55:45 | null | NONE | null | null | null | null | Hello, I was downloading the following dataset and after 20% of data was downloaded, I started getting error 429. It is not resolved since a few days. How should I resolve it?
Thanks
Dataset:
https://huggingface.co/datasets/cerebras/SlimPajama-627B
Error:
`requests.exceptions.HTTPError: 429 Client Error: Too M... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/6009 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6009/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6009/comments | https://api.github.com/repos/huggingface/datasets/issues/6009/events | https://github.com/huggingface/datasets/pull/6009 | 1,792,059,808 | PR_kwDODunzps5U1mus | 6,009 | Fix cast for dictionaries with no keys | {
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"_The documentation is not available anymore as the PR was closed or merged._",
"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | rea... | 2023-07-06T18:48:14 | 2023-07-07T14:13:00 | 2023-07-07T14:01:13 | COLLABORATOR | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7354 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7354/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7354/comments | https://api.github.com/repos/huggingface/datasets/issues/7354/events | https://github.com/huggingface/datasets/issues/7354 | 2,768,955,917 | I_kwDODunzps6lCuoN | 7,354 | A module that was compiled using NumPy 1.x cannot be run in NumPy 2.0.2 as it may crash. To support both 1.x and 2.x versions of NumPy, modules must be compiled with NumPy 2.0. Some module may need to rebuild instead e.g. with 'pybind11>=2.12'. | {
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"recreated .venv and run this: pip install diffusers[training]==0.11.1"
] | 2025-01-04T18:30:17 | 2025-01-08T02:20:58 | 2025-01-08T02:20:58 | NONE | null | null | null | null | ### Describe the bug
Following this tutorial: https://huggingface.co/docs/diffusers/en/tutorials/basic_training and running it locally using VSCode on my MacBook. The first line in the tutorial fails: from datasets import load_dataset
dataset = load_dataset('huggan/smithsonian_butterflies_subset', split="train"). w... | {
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https://api.github.com/repos/huggingface/datasets/issues/6914 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6914/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6914/comments | https://api.github.com/repos/huggingface/datasets/issues/6914/events | https://github.com/huggingface/datasets/pull/6914 | 2,310,107,326 | PR_kwDODunzps5wLi3e | 6,914 | Preserve JSON column order and support list of strings field | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6914). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>... | 2024-05-22T09:58:54 | 2024-05-29T13:18:47 | 2024-05-29T13:12:23 | MEMBER | null | null | false | {
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Additionally, support JSON file with a list of strings field.
Fix #6913. | {
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https://api.github.com/repos/huggingface/datasets/issues/7042 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7042/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7042/comments | https://api.github.com/repos/huggingface/datasets/issues/7042/events | https://github.com/huggingface/datasets/pull/7042 | 2,404,605,836 | PR_kwDODunzps51K8CM | 7,042 | Improved the tutorial by adding a link for loading datasets | {
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"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_a... | 2024-07-12T03:49:54 | 2024-08-15T10:07:44 | 2024-08-15T10:01:59 | CONTRIBUTOR | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7376 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7376/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7376/comments | https://api.github.com/repos/huggingface/datasets/issues/7376/events | https://github.com/huggingface/datasets/pull/7376 | 2,802,621,104 | PR_kwDODunzps6IiO9j | 7,376 | [docs] uv install | {
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} | Proposes adding uv to installation docs (see Slack thread [here](https://huggingface.slack.com/archives/C01N44FJDHT/p1737377177709279) for more context) if you're interested! | {
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https://api.github.com/repos/huggingface/datasets/issues/7592 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7592/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7592/comments | https://api.github.com/repos/huggingface/datasets/issues/7592/events | https://github.com/huggingface/datasets/pull/7592 | 3,118,203,880 | PR_kwDODunzps6ZC2so | 7,592 | Remove scripts altogether | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7592). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"Hi @lhoestq,\r\nI wanted to ask\r\nare you planning to stop supporting dataset builds u... | 2025-06-04T15:14:11 | 2025-09-04T11:03:43 | 2025-06-09T16:45:27 | MEMBER | null | null | false | {
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- [x] remplace fixtures based on script with no-script fixtures
- [x] windaube | {
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https://api.github.com/repos/huggingface/datasets/issues/6596 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6596/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6596/comments | https://api.github.com/repos/huggingface/datasets/issues/6596/events | https://github.com/huggingface/datasets/pull/6596 | 2,083,108,156 | PR_kwDODunzps5kJceH | 6,596 | Drop redundant None guard. | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6596). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>... | 2024-01-16T06:31:54 | 2024-01-16T17:16:16 | 2024-01-16T17:05:52 | CONTRIBUTOR | null | null | false | {
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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/6027 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6027/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6027/comments | https://api.github.com/repos/huggingface/datasets/issues/6027/events | https://github.com/huggingface/datasets/pull/6027 | 1,803,008,486 | PR_kwDODunzps5Va4g3 | 6,027 | Delete `task_templates` in `IterableDataset` when they are no longer valid | {
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"_The documentation is not available anymore as the PR was closed or merged._",
"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | rea... | 2023-07-13T13:16:17 | 2023-07-13T14:06:20 | 2023-07-13T13:57:35 | COLLABORATOR | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7766 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7766/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7766/comments | https://api.github.com/repos/huggingface/datasets/issues/7766/events | https://github.com/huggingface/datasets/issues/7766 | 3,411,611,165 | I_kwDODunzps7LWQ4d | 7,766 | cast columns to Image/Audio/Video with `storage_options` | {
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"A",
"1",
"1",
"Ok",
"> ### Feature request\n> Allow `storage_options` to be passed in\n> \n> 1. `cast` related operations (e.g., `cast_columns, cast`)\n> 2. `info` related reading (e.g., `from_dict, from_pandas, from_polars`) together with `info.features`\n> \n> import datasets\n> \n> image_path = \"s3://b... | 2025-09-12T18:51:01 | 2025-09-27T08:14:47 | null | NONE | null | null | null | null | ### Feature request
Allow `storage_options` to be passed in
1. `cast` related operations (e.g., `cast_columns, cast`)
2. `info` related reading (e.g., `from_dict, from_pandas, from_polars`) together with `info.features`
```python3
import datasets
image_path = "s3://bucket/sample.png"
dataset = datasets.Dataset.from_d... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/6523 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6523/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6523/comments | https://api.github.com/repos/huggingface/datasets/issues/6523/events | https://github.com/huggingface/datasets/pull/6523 | 2,052,643,484 | PR_kwDODunzps5ilV6d | 6,523 | fix tests | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6523). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>... | 2023-12-21T15:36:21 | 2023-12-21T15:56:54 | 2023-12-21T15:50:38 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/6980 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6980/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6980/comments | https://api.github.com/repos/huggingface/datasets/issues/6980/events | https://github.com/huggingface/datasets/issues/6980 | 2,360,909,930 | I_kwDODunzps6MuKBq | 6,980 | Support NumPy 2.0 | {
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] | closed | false | null | [] | null | [] | 2024-06-18T23:30:22 | 2024-07-12T12:04:54 | 2024-07-12T12:04:53 | CONTRIBUTOR | null | null | null | null | ### Feature request
Support NumPy 2.0.
### Motivation
NumPy introduces the Array API, which bridges the gap between machine learning libraries. Many clients of HuggingFace are eager to start using the Array API.
Besides that, NumPy 2 provides a cleaner interface than NumPy 1.
### Tasks
NumPy 2.0 was ... | {
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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/7069 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7069/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7069/comments | https://api.github.com/repos/huggingface/datasets/issues/7069/events | https://github.com/huggingface/datasets/pull/7069 | 2,429,281,339 | PR_kwDODunzps52betB | 7,069 | Fix push_to_hub by not calling create_branch if PR branch | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7069). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"cc @Wauplin maybe it's a `huggingface_hub` bug ?\r\n\r\nEDIT: ah actually the issue is ... | 2024-07-25T07:50:04 | 2024-07-31T07:10:07 | 2024-07-30T10:51:01 | MEMBER | null | null | false | {
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Note that currently create_branch raises a 400 Bad Request error if the user passes a PR branch (e.g. `refs/pr/1`).
EDIT:
~~Fix push_to_hub by not calling create_branch if branch exists.~~
Note that currently create_branch raises a ... | {
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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/7279 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7279/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7279/comments | https://api.github.com/repos/huggingface/datasets/issues/7279/events | https://github.com/huggingface/datasets/pull/7279 | 2,635,813,932 | PR_kwDODunzps6A8pTJ | 7,279 | Feature proposal: Stacking, potentially heterogeneous, datasets | {
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} | ### Introduction
Hello there,
I noticed that there are two ways to combine multiple datasets: Either through `datasets.concatenate_datasets` or `datasets.interleave_datasets`. However, to my knowledge (please correct me if I am wrong) both approaches require the datasets that are combined to have the same features.... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7180 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7180/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7180/comments | https://api.github.com/repos/huggingface/datasets/issues/7180/events | https://github.com/huggingface/datasets/issues/7180 | 2,554,244,750 | I_kwDODunzps6YPq6O | 7,180 | Memory leak when wrapping datasets into PyTorch Dataset without explicit deletion | {
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"> I've encountered a memory leak when wrapping the HuggingFace dataset into a PyTorch Dataset. The RAM usage constantly increases during iteration if items are not explicitly deleted after use.\r\n\r\nDatasets are memory mapped so they work like SWAP memory. In particular as long as you have RAM available the data... | 2024-09-28T14:00:47 | 2024-09-30T12:07:56 | 2024-09-30T12:07:56 | NONE | null | null | null | null | ### Describe the bug
I've encountered a memory leak when wrapping the HuggingFace dataset into a PyTorch Dataset. The RAM usage constantly increases during iteration if items are not explicitly deleted after use.
### Steps to reproduce the bug
Steps to reproduce:
Create a PyTorch Dataset wrapper f... | {
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```
Would reformat: src/datasets/features/image.py
1 file would be reformatted, 253 files left unchanged
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https://api.github.com/repos/huggingface/datasets/issues/7743 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7743/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7743/comments | https://api.github.com/repos/huggingface/datasets/issues/7743/events | https://github.com/huggingface/datasets/pull/7743 | 3,342,611,297 | PR_kwDODunzps6ku8Jw | 7,743 | Refactor HDF5 and preserve tree structure | {
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"@lhoestq this is ready for you now!",
"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7743). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-08-21T17:28:17 | 2025-08-26T15:28:05 | 2025-08-26T15:28:05 | CONTRIBUTOR | null | null | false | {
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- Recursive parsing and feature inference, to preserve the tree structure of the file. Note this means we now visit all links in the file. It also means we have to call` combine_chunks` on any large non-root datasets.
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https://api.github.com/repos/huggingface/datasets/issues/7034 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7034/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7034/comments | https://api.github.com/repos/huggingface/datasets/issues/7034/events | https://github.com/huggingface/datasets/pull/7034 | 2,397,525,974 | PR_kwDODunzps50y-ya | 7,034 | chore: fix typos in docs | {
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https://api.github.com/repos/huggingface/datasets/issues/7186 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7186/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7186/comments | https://api.github.com/repos/huggingface/datasets/issues/7186/events | https://github.com/huggingface/datasets/issues/7186 | 2,560,323,917 | I_kwDODunzps6Ym3FN | 7,186 | pinning `dill<0.3.9` without pinning `multiprocess` | {
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The [latest `multiprocess` release](https://github.com/uqfoundation/multiprocess/releases/tag/0.70.17) requires `dill>=0.3.9` which causes issues when installing `datasets` without backtracking during package version resolution. Is it possible to add a pin for multiprocess so something like `multi... | {
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https://api.github.com/repos/huggingface/datasets/issues/7749 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7749/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7749/comments | https://api.github.com/repos/huggingface/datasets/issues/7749/events | https://github.com/huggingface/datasets/pull/7749 | 3,356,567,923 | PR_kwDODunzps6lddDW | 7,749 | Fix typo in error message for cache directory deletion | {
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https://github.com/huggingface/datasets/blob/910fab20606893f69b4fccac5fcc883dddf5a14d/src/datasets/fingerprint.py#L63
```diff
- occured
+ occurred
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https://api.github.com/repos/huggingface/datasets/issues/6283 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6283/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6283/comments | https://api.github.com/repos/huggingface/datasets/issues/6283/events | https://github.com/huggingface/datasets/pull/6283 | 1,928,552,257 | PR_kwDODunzps5cBlKq | 6,283 | Fix array cast/embed with null values | {
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Fix #6280, fix #6311, fix #6360
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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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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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"is there a work around im stuck",
"never mind just downgraded"
] | 2025-08-08T11:08:56 | 2025-08-20T16:29:33 | 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/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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"url": "https://api.github.com/repos/huggingface/datasets/pulls/7... | 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/6439 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6439/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6439/comments | https://api.github.com/repos/huggingface/datasets/issues/6439/events | https://github.com/huggingface/datasets/issues/6439 | 2,002,916,514 | I_kwDODunzps53YhSi | 6,439 | Download + preparation speed of datasets.load_dataset is 20x slower than huggingface hub snapshot and manual loding | {
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I am working with a dataset I am trying to publish.
The path is Antreas/TALI.
It's a fairly large dataset, and contains images, video, audio and text.
I have been having multiple problems when the dataset is being downloaded using the load_dataset function -- even with 64 workers takin... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/6264 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6264/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6264/comments | https://api.github.com/repos/huggingface/datasets/issues/6264/events | https://github.com/huggingface/datasets/pull/6264 | 1,914,958,781 | PR_kwDODunzps5bTvzh | 6,264 | Temporarily pin tensorflow < 2.14.0 | {
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"_The documentation is not available anymore as the PR was closed or merged._",
"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | rea... | 2023-09-27T08:16:06 | 2023-09-27T08:45:24 | 2023-09-27T08:36:39 | MEMBER | null | null | false | {
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Hot fix #6263. | {
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https://api.github.com/repos/huggingface/datasets/issues/7469 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7469/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7469/comments | https://api.github.com/repos/huggingface/datasets/issues/7469/events | https://github.com/huggingface/datasets/issues/7469 | 2,936,606,080 | I_kwDODunzps6vCQ2A | 7,469 | Custom split name with the web interface | {
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According the doc here: https://huggingface.co/docs/hub/datasets-file-names-and-splits#custom-split-name
it should infer the split name from the subdir of data or the beg of the name of the files in data.
When doing this manually through web upload it does not work. it uses "train" as a unique spl... | {
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https://api.github.com/repos/huggingface/datasets/issues/7272 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7272/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7272/comments | https://api.github.com/repos/huggingface/datasets/issues/7272/events | https://github.com/huggingface/datasets/pull/7272 | 2,627,223,390 | PR_kwDODunzps6AirL2 | 7,272 | fix conda release worlflow | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7272). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2024-10-31T15:56:19 | 2024-10-31T15:58:35 | 2024-10-31T15:57:29 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/6730 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6730/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6730/comments | https://api.github.com/repos/huggingface/datasets/issues/6730/events | https://github.com/huggingface/datasets/pull/6730 | 2,181,881,499 | PR_kwDODunzps5pZDsB | 6,730 | Deprecate Pandas builder | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6730). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>... | 2024-03-12T15:12:13 | 2024-03-12T17:42:33 | 2024-03-12T17:36:24 | COLLABORATOR | null | null | false | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/6... | The Pandas packaged builder is undocumented and relies on `pickle` to read the data, making it **unsafe**. Moreover, I haven't seen a single instance of this builder being used (not even using the GH/Hub search), so we should deprecate it. | {
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https://api.github.com/repos/huggingface/datasets/issues/6061 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6061/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6061/comments | https://api.github.com/repos/huggingface/datasets/issues/6061/events | https://github.com/huggingface/datasets/pull/6061 | 1,818,337,136 | PR_kwDODunzps5WOi79 | 6,061 | Dill 3.7 support | {
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"_The documentation is not available anymore as the PR was closed or merged._",
"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | rea... | 2023-07-24T12:33:58 | 2023-07-24T14:13:20 | 2023-07-24T14:04:36 | COLLABORATOR | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7468 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7468/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7468/comments | https://api.github.com/repos/huggingface/datasets/issues/7468/events | https://github.com/huggingface/datasets/issues/7468 | 2,934,094,103 | I_kwDODunzps6u4rkX | 7,468 | function `load_dataset` can't solve folder path with regex characters like "[]" | {
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"Hi ! Have you tried escaping the glob special characters `[` and `]` ?\n\nbtw note that`AbstractFileSystem.glob` doesn't support regex, instead it supports glob patterns as in the python library [glob](https://docs.python.org/3/library/glob.html)\n"
] | 2025-03-20T05:21:59 | 2025-03-25T10:18:12 | null | NONE | null | null | null | null | ### Describe the bug
When using the `load_dataset` function with a folder path containing regex special characters (such as "[]"), the issue occurs due to how the path is handled in the `resolve_pattern` function. This function passes the unprocessed path directly to `AbstractFileSystem.glob`, which supports regular e... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/6915 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6915/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6915/comments | https://api.github.com/repos/huggingface/datasets/issues/6915/events | https://github.com/huggingface/datasets/pull/6915 | 2,310,564,961 | PR_kwDODunzps5wNIUh | 6,915 | Validate config name and data_files in packaged modules | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6915). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"I pushed a change that fixes 2.15 cache reloading (I fixed the packaged module hash), f... | 2024-05-22T13:36:33 | 2024-06-06T09:32:10 | 2024-06-06T09:24:35 | MEMBER | null | null | false | {
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Note that their parent `BuilderConfig` validates its attributes `name` and `data_files` in its `__post_init__` method: https://github.com/huggingface/datasets/blob/60d21e... | {
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https://api.github.com/repos/huggingface/datasets/issues/6382 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6382/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6382/comments | https://api.github.com/repos/huggingface/datasets/issues/6382/events | https://github.com/huggingface/datasets/issues/6382 | 1,977,400,799 | I_kwDODunzps513L3f | 6,382 | Add CheXpert dataset for vision | {
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"Hey @SauravMaheshkar ! Just responded to your email.\r\n\r\n_For transparency, copying part of my response here:_\r\nI agree, it would be really great to have this and other BenchMD datasets easily accessible on the hub.\r\n\r\nI think the main limiting factor is that the ChexPert dataset is currently hosted on th... | 2023-11-04T15:36:11 | 2024-01-10T11:53:52 | null | NONE | null | null | null | null | ### Feature request
### Name
**CheXpert: A Large Chest Radiograph Dataset with Uncertainty Labels and Expert Comparison**
### Paper
https://arxiv.org/abs/1901.07031
### Data
https://stanfordaimi.azurewebsites.net/datasets/8cbd9ed4-2eb9-4565-affc-111cf4f7ebe2
### Motivation
CheXpert is one of the fund... | 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/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/6017 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6017/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6017/comments | https://api.github.com/repos/huggingface/datasets/issues/6017/events | https://github.com/huggingface/datasets/issues/6017 | 1,799,309,132 | I_kwDODunzps5rP0dM | 6,017 | Switch to huggingface_hub's HfFileSystem | {
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related to https://github.com/huggingface/datasets/issues/5846 and https://github.com/huggingface/datasets/pull/5919 | {
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https://api.github.com/repos/huggingface/datasets/issues/6161 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6161/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6161/comments | https://api.github.com/repos/huggingface/datasets/issues/6161/events | https://github.com/huggingface/datasets/pull/6161 | 1,855,794,354 | PR_kwDODunzps5YM0g7 | 6,161 | Fix protocol prefix for Beam | {
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"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>Show updated benchmarks!</summary>\n\n### Benchmark: benchmark_array_xd.json\n\n| metric | read_batch_formatted_as_numpy after write_array2d | read_batch_formatted_as_numpy after write_flattened_sequence | read_batch_formatted_a... | 2023-08-17T22:40:37 | 2024-03-18T17:01:21 | 2024-03-18T17:01:21 | COLLABORATOR | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7467 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7467/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7467/comments | https://api.github.com/repos/huggingface/datasets/issues/7467/events | https://github.com/huggingface/datasets/issues/7467 | 2,930,067,107 | I_kwDODunzps6upUaj | 7,467 | load_dataset with streaming hangs on parquet datasets | {
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"Hi ! The issue comes from `pyarrow`, I reported it here: https://github.com/apache/arrow/issues/45214 (feel free to comment / thumb up).\n\nAlternatively we can try to find something else than `ParquetFileFragment.to_batches()` to iterate on Parquet data and keep the option the pass `filters=`..."
] | 2025-03-18T23:33:54 | 2025-03-25T10:28:04 | null | NONE | null | null | null | null | ### Describe the bug
When I try to load a dataset with parquet files (e.g. "bigcode/the-stack") the dataset loads, but python interpreter can't exit and hangs
### Steps to reproduce the bug
```python3
import datasets
print('Start')
dataset = datasets.load_dataset("bigcode/the-stack", data_dir="data/yaml", streaming... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/6113 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6113/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6113/comments | https://api.github.com/repos/huggingface/datasets/issues/6113/events | https://github.com/huggingface/datasets/issues/6113 | 1,833,854,030 | I_kwDODunzps5tTmRO | 6,113 | load_dataset() fails with streamlit caching inside docker | {
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"Hi! This should be fixed in the latest (patch) release (run `pip install -U datasets` to install it). This behavior was due to a bug in our authentication logic."
] | 2023-08-02T20:20:26 | 2023-08-21T18:18:27 | 2023-08-21T18:18:27 | NONE | null | null | null | null | ### Describe the bug
When calling `load_dataset` in a streamlit application running within a docker container, get a failure with the error message:
EmptyDatasetError: The directory at hf://datasets/fetch-rewards/inc-rings-2000@bea27cf60842b3641eae418f38864a2ec4cde684 doesn't contain any data files
Traceback:
Fil... | {
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https://api.github.com/repos/huggingface/datasets/issues/6203 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6203/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6203/comments | https://api.github.com/repos/huggingface/datasets/issues/6203/events | https://github.com/huggingface/datasets/issues/6203 | 1,877,491,602 | I_kwDODunzps5v6D-S | 6,203 | Support loading from a DVC remote repository | {
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"(cross-posting from the linked DVC issue)\r\n\r\nI think this should already work out of the box with the current `datasets` and `dvc.api` releases by passing the correct `storage_options` into the datasets calls. `storage_options` is essentially just the kwargs dict that gets passed to the fsspec fs constructor.\... | 2023-09-01T14:04:52 | 2023-09-15T15:11:27 | 2023-09-15T15:11:27 | NONE | null | null | null | null | ### Feature request
Adding support for loading a file from a DVC repository, tracked remotely on a SCM.
### Motivation
DVC is a popular version control system to version and manage datasets. The files are stored on a remote object storage platform, but they are tracked using Git. Integration with DVC is possible thr... | {
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https://api.github.com/repos/huggingface/datasets/issues/6674 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6674/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6674/comments | https://api.github.com/repos/huggingface/datasets/issues/6674/events | https://github.com/huggingface/datasets/issues/6674 | 2,139,595,576 | I_kwDODunzps5_h6M4 | 6,674 | Depprcated Overview.ipynb Link to new Quickstart Notebook invalid | {
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"Good catch! Feel free to open a PR to fix the link."
] | 2024-02-16T22:51:35 | 2024-02-25T18:48:09 | 2024-02-25T18:48:09 | CONTRIBUTOR | null | null | null | null | ### Describe the bug
For the dreprecated notebook found [here](https://github.com/huggingface/datasets/blob/main/notebooks/Overview.ipynb). The link to the new notebook is broken.
### Steps to reproduce the bug
Click the [Quickstart notebook](https://github.com/huggingface/notebooks/blob/main/datasets_doc/quicksta... | {
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https://api.github.com/repos/huggingface/datasets/issues/7634 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7634/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7634/comments | https://api.github.com/repos/huggingface/datasets/issues/7634/events | https://github.com/huggingface/datasets/pull/7634 | 3,169,389,653 | PR_kwDODunzps6buyij | 7,634 | Replace Sequence by List | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7634). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-06-23T20:35:48 | 2025-06-25T13:59:13 | 2025-06-25T13:59:11 | MEMBER | null | null | false | {
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This PR removes most mentions of Sequence and usage of `[ ]` and defines a proper List type instead.
before: `Sequence(Value("int64"))` or `[Value("int64")]`
no... | {
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"Hi,\r\n\r\nThis issue was fixed in `datasets` 2.15.0:\r\n- #6105\r\n\r\nYou will need to update your `datasets`:\r\n```\r\npip install -U datasets\r\n```",
"Duplicate of:\r\n- #6100"
] | 2024-07-18T13:42:35 | 2024-07-18T15:17:42 | 2024-07-18T15:16:18 | NONE | null | null | null | null | ### Describe the bug
in data_files.py, line 332,
`fs, _, _ = get_fs_token_paths(pattern, storage_options=storage_options)`
If we run the code on AWS, as fs.protocol will be a tuple like: `('file', 'local')`
So, `isinstance(fs.protocol, str) == False` and
`protocol_prefix = fs.protocol + "://" if fs.protocol != ... | {
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https://api.github.com/repos/huggingface/datasets/issues/6406 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6406/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6406/comments | https://api.github.com/repos/huggingface/datasets/issues/6406/events | https://github.com/huggingface/datasets/issues/6406 | 1,990,469,045 | I_kwDODunzps52pCW1 | 6,406 | CI Build PR Documentation is broken: ImportError: cannot import name 'TypeAliasType' from 'typing_extensions' | {
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```
ImportError: cannot import name 'TypeAliasType' from 'typing_extensions'
``` | {
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https://api.github.com/repos/huggingface/datasets/issues/6742 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6742/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6742/comments | https://api.github.com/repos/huggingface/datasets/issues/6742/events | https://github.com/huggingface/datasets/pull/6742 | 2,195,134,854 | PR_kwDODunzps5qGSfG | 6,742 | Fix missing download_config in get_data_patterns | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6742). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>... | 2024-03-19T14:29:25 | 2024-03-19T18:24:39 | 2024-03-19T18:15:13 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/7775 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7775/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7775/comments | https://api.github.com/repos/huggingface/datasets/issues/7775/events | https://github.com/huggingface/datasets/pull/7775 | 3,418,859,494 | PR_kwDODunzps6or2J2 | 7,775 | fix iterate nested field | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_7775). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update."
] | 2025-09-15T17:28:34 | 2025-09-15T17:31:14 | 2025-09-15T17:28:42 | MEMBER | null | null | false | {
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https://api.github.com/repos/huggingface/datasets/issues/6736 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6736/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6736/comments | https://api.github.com/repos/huggingface/datasets/issues/6736/events | https://github.com/huggingface/datasets/issues/6736 | 2,190,181,422 | I_kwDODunzps6Ci4Qu | 6,736 | Mosaic Streaming (MDS) Support | {
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"Hi ! that would be great :) Though note that `datasets` doesn't implement format-specific resuming when streaming, so in general I think it's better if users can use the mosaic-streaming library to read their MDS datasets. I wonder if they support `hf://` paths though...\n\nAnyway for those interested, the code fo... | 2024-03-16T18:42:04 | 2025-09-10T14:32:13 | null | NONE | null | null | null | null | ### Feature request
I'm a huge fan of the current HF Datasets `webdataset` integration (especially the built-in streaming support). However, I'd love to upload some robotics and multimodal datasets I've processed for use with [Mosaic Streaming](https://docs.mosaicml.com/projects/streaming/en/stable/), specifically the... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7431 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7431/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7431/comments | https://api.github.com/repos/huggingface/datasets/issues/7431/events | https://github.com/huggingface/datasets/issues/7431 | 2,887,244,074 | I_kwDODunzps6sF9kq | 7,431 | Issues with large Datasets | {
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"what's the error message ?",
"This was the final error message that it was giving pyarrow.lib.ArrowInvalid: JSON parse error: Column() changed from object to string in row 0",
"Here is the list of errors:\n\nTraceback (most recent call last):\n File \".venv/lib/python3.12/site-packages/datasets/packaged_modul... | 2025-02-28T14:05:22 | 2025-03-04T15:02:26 | null | NONE | null | null | null | null | ### Describe the bug
If the coco annotation file is too large the dataset will not be able to load it, not entirely sure were the issue is but I am guessing it is due to the code trying to load it all as one line into a dataframe. This was for object detections.
My current work around is the following code but would ... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/6962 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6962/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6962/comments | https://api.github.com/repos/huggingface/datasets/issues/6962/events | https://github.com/huggingface/datasets/pull/6962 | 2,343,394,378 | PR_kwDODunzps5x8yHt | 6,962 | fix(ci): remove unnecessary permissions | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6962). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"<details>\n<summary>Show benchmarks</summary>\n\nPyArrow==8.0.0\n\n<details>\n<summary>... | 2024-06-10T09:28:02 | 2024-06-11T08:31:52 | 2024-06-11T08:25:47 | MEMBER | null | null | false | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/6... | ### What does this PR do?
Remove unnecessary permissions granted to the actions workflow.
Sorry for the mishap. | {
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https://api.github.com/repos/huggingface/datasets/issues/6820 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6820/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6820/comments | https://api.github.com/repos/huggingface/datasets/issues/6820/events | https://github.com/huggingface/datasets/pull/6820 | 2,248,471,673 | PR_kwDODunzps5s7sgy | 6,820 | Allow deleting a subset/config from a no-script dataset | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6820). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"This is ready for review, @huggingface/datasets.",
"I am adding a test...",
"@lhoes... | 2024-04-17T14:41:12 | 2024-05-02T07:31:03 | 2024-04-30T09:44:24 | MEMBER | null | null | false | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/6... | TODO:
- [x] Add docs
- [x] Delete token arg from CLI example
- See: #6839
Close #6810. | {
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https://api.github.com/repos/huggingface/datasets/issues/6069 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6069/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6069/comments | https://api.github.com/repos/huggingface/datasets/issues/6069/events | https://github.com/huggingface/datasets/issues/6069 | 1,820,831,535 | I_kwDODunzps5sh68v | 6,069 | KeyError: dataset has no key "image" | {
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"You can list the dataset's columns with `ds.column_names` before `.map` to check whether the dataset has an `image` column. If it doesn't, then this is a bug. Otherwise, please paste the line with the `.map` call.\r\n\r\n\r\n",
"This is the piece of code I am running:\r\n```\r\ndata_transforms = utils.get_data_a... | 2023-07-25T17:45:50 | 2024-09-06T08:16:16 | 2023-07-27T12:42:17 | NONE | null | null | null | null | ### Describe the bug
I've loaded a local image dataset with:
`ds = laod_dataset("imagefolder", data_dir=path-to-data)`
And defined a transform to process the data, following the Datasets docs.
However, I get a keyError error, indicating there's no "image" key in my dataset. When I printed out the example_batch ... | {
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https://api.github.com/repos/huggingface/datasets/issues/7769 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7769/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7769/comments | https://api.github.com/repos/huggingface/datasets/issues/7769/events | https://github.com/huggingface/datasets/pull/7769 | 3,413,868,583 | PR_kwDODunzps6obLVK | 7,769 | Fix: Correct float feature generation in `generate_examples` | {
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} | This PR fixes a bug in the `generate_examples` function where `datasets.Value` features with a `float` dtype were incorrectly generated using `np.random.randint`. This resulted in integer values being cast to float, which is not representative of true floating-point data.
**Key changes include:**
1. Added explicit... | {
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https://api.github.com/repos/huggingface/datasets/issues/7570 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7570/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7570/comments | https://api.github.com/repos/huggingface/datasets/issues/7570/events | https://github.com/huggingface/datasets/issues/7570 | 3,065,966,529 | I_kwDODunzps62vu_B | 7,570 | Dataset lib seems to broke after fssec lib update | {
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"Hi, can you try updating `datasets` ? Colab still installs `datasets` 2.x by default, instead of 3.x\n\nIt would be cool to also report this to google colab, they have a GitHub repo for this IIRC",
"@lhoestq I have updated it to `datasets==3.6.0` and now there's an entirely different issue on colab while locally... | 2025-05-15T11:45:06 | 2025-06-13T00:44:27 | 2025-06-13T00:44:27 | NONE | null | null | null | null | ### Describe the bug
I am facing an issue since today where HF's dataset is acting weird and in some instances failure to recognise a valid dataset entirely, I think it is happening due to recent change in `fsspec` lib as using this command fixed it for me in one-time: `!pip install -U datasets huggingface_hub fsspec`... | {
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https://api.github.com/repos/huggingface/datasets/issues/7829 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7829/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7829/comments | https://api.github.com/repos/huggingface/datasets/issues/7829/events | https://github.com/huggingface/datasets/issues/7829 | 3,548,584,085 | I_kwDODunzps7TgxiV | 7,829 | Memory leak / Large memory usage with num_workers = 0 and numerous dataset within DatasetDict | {
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"Thanks for the report, this is possibly related #7722 and #7694.\n\nCould you pls provide steps to reproduce this?",
"To overcome this issue right now I did simply reduce the size of the dataset and ended up running a for loop (my training has now a constant learning rate schedule). From what I understood, and I... | 2025-10-24T09:51:38 | 2025-10-27T19:37:21 | null | NONE | null | null | null | null | ### Describe the bug
Hi team, first off, I love the datasets library! 🥰
I'm encountering a potential memory leak / increasing memory usage when training a model on a very large DatasetDict.
Setup: I have a DatasetDict containing 362 distinct datasets, which sum up to ~2.8 billion rows.
Training Task: I'm performin... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/7292 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7292/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7292/comments | https://api.github.com/repos/huggingface/datasets/issues/7292/events | https://github.com/huggingface/datasets/issues/7292 | 2,664,250,855 | I_kwDODunzps6ezT3n | 7,292 | DataFilesNotFoundError for datasets `OpenMol/PubChemSFT` | {
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"Hi ! If the dataset owner uses `push_to_hub()` instead of `save_to_disk()` and upload the local files it will fix the issue.\r\nRight now `datasets` sees the train/test/valid pickle files but they are not supported file formats.",
"Alternatively you can load the arrow file instead:\r\n\r\n```python\r\nfrom datas... | 2024-11-16T11:54:31 | 2024-11-19T00:53:00 | 2024-11-19T00:52:59 | NONE | null | null | null | null | ### Describe the bug
Cannot load the dataset https://huggingface.co/datasets/OpenMol/PubChemSFT
### Steps to reproduce the bug
```
from datasets import load_dataset
dataset = load_dataset('OpenMol/PubChemSFT')
```
### Expected behavior
```
-----------------------------------------------------------------------... | {
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https://api.github.com/repos/huggingface/datasets/issues/7757 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/7757/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/7757/comments | https://api.github.com/repos/huggingface/datasets/issues/7757/events | https://github.com/huggingface/datasets/issues/7757 | 3,389,535,011 | I_kwDODunzps7KCDMj | 7,757 | Add support for `.conll` file format in datasets | {
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"That would be cool ! feel free to ping me if I can help reviewing a PR"
] | 2025-09-06T07:25:39 | 2025-09-10T14:22:48 | null | NONE | null | null | null | null | ### Feature request
I’d like to request native support in the Hugging Face datasets library for reading .conll files (CoNLL format). This format is widely used in NLP tasks, especially for Named Entity Recognition (NER), POS tagging, and other token classification problems.
Right now `.conll` datasets need to be manu... | null | {
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https://api.github.com/repos/huggingface/datasets/issues/6959 | https://api.github.com/repos/huggingface/datasets | https://api.github.com/repos/huggingface/datasets/issues/6959/labels{/name} | https://api.github.com/repos/huggingface/datasets/issues/6959/comments | https://api.github.com/repos/huggingface/datasets/issues/6959/events | https://github.com/huggingface/datasets/pull/6959 | 2,340,229,908 | PR_kwDODunzps5xyVt6 | 6,959 | Better error handling in `dataset_module_factory` | {
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"The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/datasets/pr_6959). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.",
"Test should be fixed by https://github.com/huggingface/datasets/pull/6959/commits/ef8f7... | 2024-06-07T11:24:15 | 2024-06-10T07:33:53 | 2024-06-10T07:27:43 | CONTRIBUTOR | null | null | false | {
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"url": "https://api.github.com/repos/huggingface/datasets/pulls/6... | cc @cakiki who reported it on [slack](https://huggingface.slack.com/archives/C039P47V1L5/p1717754405578539) (private link)
This PR updates how errors are handled in `dataset_module_factory` when the `dataset_info` cannot be accessed:
1. Use multiple `except ... as e` instead of using `isinstance(e, ...)`
2. Alway... | {
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