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2025-06-13 09:02:24
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2,991,484,542
I_kwDODunzps6yTm5-
7,509
Dataset uses excessive memory when loading files
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[ "small update: I converted the jsons to parquet and it now works well with 32 proc and the same node. \nI still think this needs to be understood, since json is a very popular and easy-to-use format. ", "Hi ! The JSON loader loads full files in memory, unless they are JSON Lines. In this case it iterates on the J...
2025-04-13T21:09:49Z
2025-04-28T15:18:55Z
null
NONE
null
null
null
null
### Describe the bug Hi I am having an issue when loading a dataset. I have about 200 json files each about 1GB (total about 215GB). each row has a few features which are a list of ints. I am trying to load the dataset using `load_dataset`. The dataset is about 1.5M samples I use `num_proc=32` and a node with 378GB of...
null
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2,986,612,934
I_kwDODunzps6yBBjG
7,508
Iterating over Image feature columns is extremely slow
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[ "Hi ! Could it be because the `Image()` type in dataset does `image = Image.open(image_path)` and also `image.load()` which actually loads the image data in memory ? This is needed to avoid too many open files issues, see https://github.com/huggingface/datasets/issues/3985", "Yes, that seems to be it. For my pur...
2025-04-10T19:00:54Z
2025-04-15T17:57:08Z
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We are trying to load datasets where the image column stores `PIL.PngImagePlugin.PngImageFile` images. However, iterating over these datasets is extremely slow. What I have found: 1. It is the presence of the image column that causes the slowdown. Removing the column from the dataset results in blazingly fast (as expe...
null
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2,984,309,806
I_kwDODunzps6x4PQu
7,507
Front-end statistical data quantity deviation
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[ "Hi ! the format of this dataset is not supported by the Dataset Viewer. It looks like this dataset was saved using `save_to_disk()` which is meant for local storage / easy reload without compression, not for sharing online." ]
2025-04-10T02:51:38Z
2025-04-15T12:54:51Z
null
NONE
null
null
null
null
### Describe the bug While browsing the dataset at https://huggingface.co/datasets/NeuML/wikipedia-20250123, I noticed that a dataset with nearly 7M entries was estimated to be only 4M in size—almost half the actual amount. According to the post-download loading and the dataset_info (https://huggingface.co/datasets/Ne...
null
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2,981,687,450
I_kwDODunzps6xuPCa
7,506
HfHubHTTPError: 429 Client Error: Too Many Requests for URL when trying to access Fineweb-10BT on 4A100 GPUs using SLURM
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[ "Hi ! make sure to be logged in with your HF account (e.g. using `huggingface-cli login` or passing `token=` to `load_dataset()`), otherwise you'll get rate limited at one point" ]
2025-04-09T06:32:04Z
2025-04-15T13:04:31Z
null
NONE
null
null
null
null
### Describe the bug I am trying to run some finetunings on 4 A100 GPUs using SLURM using axolotl training framework which in turn uses Huggingface's Trainer and Accelerate on [Fineweb-10BT](https://huggingface.co/datasets/HuggingFaceFW/fineweb), but I end up running into 429 Client Error: Too Many Requests for URL er...
null
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2,979,926,156
I_kwDODunzps6xnhCM
7,505
HfHubHTTPError: 403 Forbidden: None. Cannot access content at: https://hf.co/api/s3proxy
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2025-04-08T14:08:40Z
2025-04-08T14:08:40Z
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I have already logged in Huggingface using CLI with my valid token. Now trying to download the datasets using following code: from transformers import WhisperProcessor, WhisperForConditionalGeneration, WhisperTokenizer, Trainer, TrainingArguments, DataCollatorForSeq2Seq from datasets import load_dataset, Data...
null
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2,979,410,641
I_kwDODunzps6xljLR
7,504
BuilderConfig ParquetConfig(...) doesn't have a 'use_auth_token' key.
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[ "I encountered the same error, have you resolved it?", "Hi ! `use_auth_token` has been deprecated and removed some time ago. You should use `token` instead in `load_dataset()`" ]
2025-04-08T10:55:03Z
2025-04-15T12:36:28Z
null
NONE
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### Describe the bug Trying to run the following fine-tuning script (based on this page [here](https://github.com/huggingface/instruction-tuned-sd)): ``` ! accelerate launch /content/instruction-tuned-sd/finetune_instruct_pix2pix.py \ --pretrained_model_name_or_path=${MODEL_ID} \ --dataset_name=${DATASET_NAME...
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2,978,512,625
I_kwDODunzps6xiH7x
7,503
Inconsistency between load_dataset and load_from_disk functionality
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[ "Hi ! you can find more info here: https://github.com/huggingface/datasets/issues/5044#issuecomment-1263714347\n\n> What's the recommended approach for this use case? Should I manually process my gsm8k-new dataset to make it compatible with load_dataset? Is there a standard way to convert between these formats?\n\n...
2025-04-08T03:46:22Z
2025-04-15T12:39:53Z
null
NONE
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## Issue Description I've encountered confusion when using `load_dataset` and `load_from_disk` in the datasets library. Specifically, when working offline with the gsm8k dataset, I can load it using a local path: ```python import datasets ds = datasets.load_dataset('/root/xxx/datasets/gsm8k', 'main') ``` output: ```t...
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2,977,453,814
I_kwDODunzps6xeFb2
7,502
`load_dataset` of size 40GB creates a cache of >720GB
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[ "Hi ! Parquet is a compressed format. When you load a dataset, it uncompresses the Parquet data into Arrow data on your disk. That's why you can indeed end up with 720GB of uncompressed data on disk. The uncompression is needed to enable performant dataset objects (especially for random access).\n\nTo save some sto...
2025-04-07T16:52:34Z
2025-04-15T15:22:12Z
2025-04-15T15:22:11Z
NONE
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Hi there, I am trying to load a dataset from the Hugging Face Hub and split it into train and validation splits. Somehow, when I try to do it with `load_dataset`, it exhausts my disk quota. So, I tried manually downloading the parquet files from the hub and loading them as follows: ```python ds = DatasetDict( ...
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I_kwDODunzps6xbSh2
7,501
Nested Feature raises ArrowNotImplementedError: Unsupported cast using function cast_struct
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[ "Solved by the default `load_dataset(features)` parameters. Do not use `Sequence` for the `list` in `list[any]` json schema, just simply use `[]`. For example, `\"b\": Sequence({...})` fails but `\"b\": [{...}]` works fine." ]
2025-04-07T12:35:39Z
2025-04-07T12:43:04Z
2025-04-07T12:43:03Z
NONE
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### Describe the bug `datasets.Features` seems to be unable to handle json file that contains fields of `list[dict]`. ### Steps to reproduce the bug ```json // test.json {"a": 1, "b": [{"c": 2, "d": 3}, {"c": 4, "d": 5}]} {"a": 5, "b": [{"c": 7, "d": 8}, {"c": 9, "d": 10}]} ``` ```python import json from datasets i...
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2,974,841,921
I_kwDODunzps6xUHxB
7,500
Make `with_format` correctly indicate that a `Dataset` is compatible with PyTorch's `Dataset` class
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[ "Does the torch `DataLoader` really require the dataset to be a subclass of `torch.utils.data.Dataset` ? Or is there a simpler type we could use ?\n\nPS: also note that a dataset without `with_format()` can also be used in a torch `DataLoader` . Calling `with_format(\"torch\")` simply makes the output of the datase...
2025-04-06T09:56:09Z
2025-04-15T12:57:39Z
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### Feature request Currently `datasets` does not correctly indicate to the Python type-checker (e.g. `pyright` / `Pylance`) that the output of `with_format` is compatible with PyTorch's `Dataloader` since it does not indicate that the HuggingFace `Dataset` is compatible with the PyTorch `Dataset` class. It would be g...
null
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7,499
Added cache dirs to load and file_utils
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[ "hi ! the `hf_hub_download` cache_dir is a different cache directory than the one for `datasets`.\r\n\r\n`hf_hub_download` uses the `huggingface_hub` cache which is located in by default in `~/.cache/huggingface/hub`, while `datasets` uses a different cache for Arrow files and map() results `~/.cache/huggingface/da...
2025-04-04T22:36:04Z
2025-05-07T14:07:34Z
2025-05-07T14:07:34Z
NONE
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When adding "cache_dir" to datasets.load_dataset, the cache_dir gets lost in the function calls, changing the cache dir to the default path. This fixes a few of these instances.
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2,969,218,273
I_kwDODunzps6w-qzh
7,498
Extreme memory bandwidth.
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2025-04-03T11:09:08Z
2025-04-03T11:11:22Z
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### Describe the bug When I use hf datasets on 4 GPU with 40 workers I get some extreme memory bandwidth of constant ~3GB/s. However, if I wrap the dataset in `IterableDataset`, this issue is gone and the data also loads way faster (4x faster training on 1 worker). It seems like the workers don't share memory and b...
null
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2,968,553,693
I_kwDODunzps6w8Ijd
7,497
How to convert videos to images?
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[ "Hi ! there is some documentation here on how to read video frames: https://huggingface.co/docs/datasets/video_load" ]
2025-04-03T07:08:39Z
2025-04-15T12:35:15Z
null
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### Feature request Does someone know how to return the images from videos? ### Motivation I am trying to use openpi(https://github.com/Physical-Intelligence/openpi) to finetune my Lerobot dataset(V2.0 and V2.1). I find that although the codedaset is v2.0, they are different. It seems like Lerobot V2.0 has two versi...
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2,967,345,522
I_kwDODunzps6w3hly
7,496
Json builder: Allow features to override problematic Arrow types
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[ "Hi ! It would be cool indeed, currently the JSON data are generally loaded here: \n\nhttps://github.com/huggingface/datasets/blob/90e5bf8a8599b625d6103ee5ac83b98269991141/src/datasets/packaged_modules/json/json.py#L137-L140\n\nMaybe we can pass a Arrow `schema` to avoid errors ?" ]
2025-04-02T19:27:16Z
2025-04-15T13:06:09Z
null
NONE
null
null
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null
### Feature request In the JSON builder, use explicitly requested feature types before or while converting to Arrow. ### Motivation Working with JSON datasets is really hard because of Arrow. At the very least, it seems like it should be possible to work-around these problems by explicitly setting problematic colum...
null
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2,967,034,060
I_kwDODunzps6w2VjM
7,495
Columns in the dataset obtained though load_dataset do not correspond to the one in the dataset viewer since 3.4.0
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[ "Hi, the dataset viewer shows all the possible columns and their types, but `load_dataset()` iterates through all the columns that you defined. It seems that you only have one column (‘audio’) defined in your dataset because when I ran `print(ds.column_names)`, the only name I got was “audio”. You need to clearly d...
2025-04-02T17:01:11Z
2025-05-19T13:54:16Z
null
CONTRIBUTOR
null
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### Describe the bug I have noticed that on my dataset named [BrunoHays/Accueil_UBS](https://huggingface.co/datasets/BrunoHays/Accueil_UBS), since the version 3.4.0, every column except audio is missing when I load the dataset. Interestingly, the dataset viewer still shows the correct columns ### Steps to reproduce ...
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2,965,347,685
I_kwDODunzps6wv51l
7,494
Broken links in pdf loading documentation
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[ "thanks for reporting ! I fixed the links, the docs will be updated in the next release" ]
2025-04-02T06:45:22Z
2025-04-15T13:36:25Z
2025-04-15T13:36:04Z
NONE
null
null
null
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### Describe the bug Hi, just a couple of small issues I ran into while reading the docs for [loading pdf data](https://huggingface.co/docs/datasets/main/en/document_load): 1. The link for the [`Create a pdf dataset`](https://huggingface.co/docs/datasets/main/en/document_load#pdffolder) points to https://huggingface....
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2,964,025,179
I_kwDODunzps6wq29b
7,493
push_to_hub does not upload videos
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[ "Hi ! the `Video` type is still experimental, and in particular `push_to_hub` doesn't upload videos at the moment (only the paths).\n\nThere is an open question to either upload the videos inside the Parquet files, or rather have them as separate files (which is great to enable remote seeking/streaming)" ]
2025-04-01T17:00:20Z
2025-04-15T12:34:23Z
null
NONE
null
null
null
null
### Describe the bug Hello, I would like to upload a video dataset (some .mp4 files and some segments within them), i.e. rows correspond to subsequences from videos. Videos might be referenced by several rows. I created a dataset locally and it references the videos and the video readers can read them correctly. I u...
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2,959,088,568
PR_kwDODunzps6QtCQM
7,492
Closes #7457
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[ "This PR fixes issue #7457" ]
2025-03-30T20:41:20Z
2025-04-13T22:05:07Z
2025-04-13T22:05:07Z
CONTRIBUTOR
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This PR updates the documentation to include the HF_DATASETS_CACHE environment variable, which allows users to customize the cache location for datasets—similar to HF_HUB_CACHE for models.
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7,491
docs: update cache.mdx to include HF_DATASETS_CACHE documentation
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[ "Already included HF_DATASETS_CACHE" ]
2025-03-30T20:35:03Z
2025-03-30T20:36:40Z
2025-03-30T20:36:40Z
CONTRIBUTOR
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PR_kwDODunzps6QsPUI
7,490
(refactor) remove redundant logic in _check_valid_index_key
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2025-03-30T11:45:42Z
2025-03-30T11:50:22Z
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This PR contributes a minor refactor, in a small function in `src/datasets/formatting/formatting.py`. No change in logic. In the original code, there are separate if-conditionals for `isinstance(key, range)` and `isinstance(key, Iterable)`, with essentially the same logic. This PR combines these two using a sin...
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PR_kwDODunzps6QqSRD
7,489
fix: loading of datasets from Disk(#7373)
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[ "@nepfaff Could you confirm if this fixes the issue for you? I checked Memray, and everything looked good on my end.\r\n\r\nInstall: `pip install git+https://github.com/sam-hey/datasets.git@fix/concatenate_datasets`\r\n", "Will aim to get to this soon. I don't have a rapid testing pipeline setup but need to wait ...
2025-03-29T16:22:58Z
2025-04-24T16:36:36Z
null
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Fixes dataset loading from disk by ensuring that memory maps and streams are properly closed. For more details, see https://github.com/huggingface/datasets/issues/7373.
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PR_kwDODunzps6QlLmn
7,488
Support underscore int read instruction
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[ "The docs for this PR live [here](/static-proxy?url=https%3A%2F%2Fmoon-ci-docs.huggingface.co%2Fdocs%2Fdatasets%2Fpr_7488). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.", "you rock, Quentin - thank you!" ]
2025-03-28T16:01:15Z
2025-03-28T16:20:44Z
2025-03-28T16:20:43Z
MEMBER
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close https://github.com/huggingface/datasets/issues/7481
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7,487
Write pdf in map
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2025-03-28T15:49:25Z
2025-03-28T17:09:53Z
2025-03-28T17:09:51Z
MEMBER
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Fix this error when mapping a PDF dataset ``` pyarrow.lib.ArrowInvalid: Could not convert <pdfplumber.pdf.PDF object at 0x13498ee40> with type PDF: did not recognize Python value type when inferring an Arrow data type ``` and also let map() outputs be lists of images or pdfs
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7,486
`shared_datadir` fixture is missing
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[ "OK I was missing the `pytest-datadir` package. Sorry for the noise!" ]
2025-03-27T18:17:12Z
2025-03-27T19:49:11Z
2025-03-27T19:49:10Z
NONE
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### Describe the bug Running the tests for the latest release fails due to missing `shared_datadir` fixture. ### Steps to reproduce the bug Running `pytest` while building a package for Arch Linux leads to these errors: ``` ==================================== ERRORS ==================================== _________ E...
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set dev version
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release: 3.5.0
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Support skip_trying_type
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2025-04-29T04:14:57Z
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This PR addresses Issue #7472 cc: @lhoestq
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Implement capability to restore non-nullability in Features
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[ "Interestingly, this does not close #7479. The Features are not correctly maintained when calling `from_dict` with the custom Features.", "Unfortunately this PR does not fix the reported issue. After more digging:\r\n\r\n- when the dataset is created, nullability information is lost in Features;\r\n- even with th...
2025-03-26T22:16:09Z
2025-05-15T15:00:59Z
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CONTRIBUTOR
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This PR attempts to keep track of non_nullable pyarrow fields when converting a `pa.Schema` to `Features`. At the same time, when outputting the `arrow_schema`, the original non-nullable fields are restored. This allows for more consistent behavior and avoids breaking behavior as illustrated in #7479. I am by no mea...
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7,481
deal with python `10_000` legal number in slice syntax
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[ "should be an easy fix, I opened a PR" ]
2025-03-26T20:10:54Z
2025-03-28T16:20:44Z
2025-03-28T16:20:44Z
NONE
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### Feature request ``` In [6]: ds = datasets.load_dataset("HuggingFaceH4/ultrachat_200k", split="train_sft[:1000]") In [7]: ds = datasets.load_dataset("HuggingFaceH4/ultrachat_200k", split="train_sft[:1_000]") [dozens of frames skipped] File /usr/local/lib/python3.10/dist-packages/datasets/arrow_reader.py:444, in _s...
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HF_DATASETS_CACHE ignored?
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[ "FWIW, it does eventually write to /tmp/roller/datasets when generating the final version.", "Hey, I’d love to work on this issue but I am a beginner, can I work it with you?", "Hi @lhoestq,\nI'd like to look into this issue but I'm still learning. Could you share any quick pointers on the HF_DATASETS_CACHE beh...
2025-03-26T17:19:34Z
2025-04-28T10:16:16Z
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### Describe the bug I'm struggling to get things to respect HF_DATASETS_CACHE. Rationale: I'm on a system that uses NFS for homedir, so downloading to NFS is expensive, slow, and wastes valuable quota compared to local disk. Instead, it seems to rely mostly on HF_HUB_CACHE. Current version: 3.2.1dev. In the process...
null
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7,479
Features.from_arrow_schema is destructive
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2025-03-26T16:46:43Z
2025-03-26T16:46:58Z
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### Describe the bug I came across this, perhaps niche, bug where `Features` does not/cannot account for pyarrow's `nullable=False` option in Fields. Interestingly, I found that in regular "flat" fields this does not necessarily lead to conflicts, but when a non-nullable field is in a struct, an incompatibility arises...
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update fsspec 2025.3.0
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[ "Sorry for tagging you @lhoestq but since you merged the linked PR, I wondered if you might be able to help me get this triaged so it can be reviewed/rejected etc. 🙏🏼 ", "The docs for this PR live [here](/static-proxy?url=https%3A%2F%2Fmoon-ci-docs.huggingface.co%2Fdocs%2Fdatasets%2Fpr_7478). All of your documentation changes will be reflec...
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2025-03-28T19:15:54Z
2025-03-28T15:51:55Z
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It appears there have been two releases of fsspec since this dependency was last updated, it would be great if Datasets could be updated so that it didn't hold back the usage of newer fsspec versions in consuming projects. PR based on https://github.com/huggingface/datasets/pull/7352
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2,947,169,460
I_kwDODunzps6vqjy0
7,477
What is the canonical way to compress a Dataset?
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[ "I saw this post by @lhoestq: /static-proxy?url=https%3A%2F%2Fdiscuss.huggingface.co%2Ft%2Fincreased-arrow-table-size-by-factor-of-2%2F26561%2F4 suggesting that there is at least some internal code for writing sharded parquet datasets non-concurrently. This appears to be that code: https://github.com/huggingface/datasets/blob/94ccd1b4fada8a92cea...
2025-03-25T16:47:51Z
2025-04-03T09:13:11Z
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Given that Arrow is the preferred backend for a Dataset, what is a user supposed to do if they want concurrent reads, concurrent writes AND on-disk compression for a larger dataset? Parquet would be the obvious answer except that there is no native support for writing sharded, parquet datasets concurrently [[1](https:...
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7,476
Priotitize json
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[ "The docs for this PR live [here](/static-proxy?url=https%3A%2F%2Fmoon-ci-docs.huggingface.co%2Fdocs%2Fdatasets%2Fpr_7476). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update." ]
2025-03-25T15:44:31Z
2025-03-25T15:47:00Z
2025-03-25T15:45:00Z
MEMBER
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`datasets` should load the JSON data in https://huggingface.co/datasets/facebook/natural_reasoning, not the PDF
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I_kwDODunzps6voiq6
7,475
IterableDataset's state_dict shard_example_idx is always equal to the number of samples in a shard
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[ "Hey, I’d love to work on this issue but I am a beginner, can I work it with you?", "Hello. I'm sorry but I don't have much time to get in the details for now.\nHave you managed to reproduce the issue with the code provided ?\nIf you want to work on it, you can self-assign and ask @lhoestq for directions", "Hi ...
2025-03-25T13:58:07Z
2025-05-06T14:22:19Z
2025-05-06T14:05:07Z
CONTRIBUTOR
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### Describe the bug I've noticed a strange behaviour with Iterable state_dict: the value of shard_example_idx is always equal to the amount of samples in a shard. ### Steps to reproduce the bug I am reusing the example from the doc ```python from datasets import Dataset ds = Dataset.from_dict({"a": range(6)}).to_...
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Remove conditions for Python < 3.9
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[ "The docs for this PR live [here](/static-proxy?url=https%3A%2F%2Fmoon-ci-docs.huggingface.co%2Fdocs%2Fdatasets%2Fpr_7474). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.", "Thanks ! can you run `make style` to fix code formatting ? then we can merge", "@lhoe...
2025-03-25T03:08:04Z
2025-04-16T00:11:06Z
2025-04-15T16:07:55Z
CONTRIBUTOR
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This PR remove conditions for Python < 3.9.
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7,473
Webdataset data format problem
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[ "I was able to work around it" ]
2025-03-21T17:23:52Z
2025-03-21T19:19:58Z
2025-03-21T19:19:58Z
NONE
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### Describe the bug Please see https://huggingface.co/datasets/ejschwartz/idioms/discussions/1 Error code: FileFormatMismatchBetweenSplitsError All three splits, train, test, and validation, use webdataset. But only the train split has more than one file. How can I force the other two splits to also be interpreted ...
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7,472
Label casting during `map` process is canceled after the `map` process
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[ "Hi ! By default `map()` tries to keep the types of each column of the dataset, so here it reuses the int type since all your float values can be converted to integers. But I agree it would be nice to store float values as float values and don't try to reuse the same type in this case.\n\nIn the meantime, you can e...
2025-03-21T07:56:22Z
2025-04-10T05:11:15Z
2025-04-10T05:11:14Z
CONTRIBUTOR
null
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### Describe the bug When preprocessing a multi-label dataset, I introduced a step to convert int labels to float labels as [BCEWithLogitsLoss](https://pytorch.org/docs/stable/generated/torch.nn.BCEWithLogitsLoss.html) expects float labels and forward function of models in transformers package internally use `BCEWithL...
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7,471
Adding argument to `_get_data_files_patterns`
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[ "Hi ! The pattern can be specified in advance in YAML in the README.md of the dataset :)\n\nFor example\n\n```\n---\nconfigs:\n- config_name: default\n data_files:\n - split: train\n path: \"train/*\"\n - split: test\n path: \"test/*\"\n---\n```\n\nSee the docs at https://huggingface.co/docs/hub/en/dataset...
2025-03-21T07:17:53Z
2025-03-27T12:30:52Z
2025-03-26T07:26:27Z
NONE
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### Feature request How about adding if the user already know about the pattern? https://github.com/huggingface/datasets/blob/a256b85cbc67aa3f0e75d32d6586afc507cf535b/src/datasets/data_files.py#L252 ### Motivation While using this load_dataset people might use 10M of images for the local files. However, due to sear...
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2,937,236,323
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7,470
Is it possible to shard a single-sharded IterableDataset?
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[ "Hi ! Maybe you can look for an option in your dataset to partition your data based on a deterministic filter ? For example each worker could stream the data based on `row.id % num_shards` or something like that ?", "So the recommendation is to start out with multiple shards initially and re-sharding after is not...
2025-03-21T04:33:37Z
2025-05-09T22:51:46Z
2025-03-26T06:49:28Z
NONE
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I thought https://github.com/huggingface/datasets/pull/7252 might be applicable but looking at it maybe not. Say we have a process, eg. a database query, that can return data in slightly different order each time. So, the initial query needs to be run by a single thread (not to mention running multiple times incurs mo...
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I_kwDODunzps6vCQ2A
7,469
Custom split name with the web interface
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2025-03-20T20:45:59Z
2025-03-21T07:20:37Z
2025-03-21T07:20:37Z
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### Describe the bug 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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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" ]
2025-03-20T05:21:59Z
2025-03-25T10:18:12Z
null
NONE
null
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### 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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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=`..." ]
2025-03-18T23:33:54Z
2025-03-25T10:28:04Z
null
NONE
null
null
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### 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...
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2,928,661,327
PR_kwDODunzps6PHQyp
7,466
Fix local pdf loading
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2025-03-18T14:09:06Z
2025-03-18T14:11:52Z
2025-03-18T14:09:21Z
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fir this error when accessing a local pdf ``` File ~/.pyenv/versions/3.12.2/envs/hf-datasets/lib/python3.12/site-packages/pdfminer/psparser.py:220, in PSBaseParser.seek(self, pos) 218 """Seeks the parser to the given position.""" 219 log.debug("seek: %r", pos) --> 220 self.fp.seek(pos) 221 # reset t...
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2,926,478,838
PR_kwDODunzps6PABJa
7,464
Minor fix for metadata files in extension counter
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2025-03-17T21:57:11Z
2025-03-18T15:21:43Z
2025-03-18T15:21:41Z
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2,925,924,452
PR_kwDODunzps6O-I6K
7,463
Adds EXR format to store depth images in float32
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[ "Hi ! I'mn wondering if this shouldn't this be an `Image()` type and decoded as a `PIL.Image` ?\r\n\r\nThis would make it easier to integrate with the rest of the HF ecosystem, and you could still get a numpy array using `ds = ds.with_format(\"numpy\")` which sets all the images to be formatted as numpy arrays", ...
2025-03-17T17:42:40Z
2025-04-02T12:33:39Z
null
NONE
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This PR adds the EXR feature to store depth images (or can be normals, etc) in float32. It relies on [openexr_numpy](https://github.com/martinResearch/openexr_numpy/tree/main) to manipulate EXR images.
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7,462
set dev version
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2025-03-17T16:00:53Z
2025-03-17T16:03:31Z
2025-03-17T16:01:08Z
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2,925,608,123
I_kwDODunzps6uYTy7
7,461
List of images behave differently on IterableDataset and Dataset
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[ "Hi ! Can you try with `datasets` ^3.4 released recently ? on my side it works with IterableDataset on the recent version :)\n\n```python\nIn [20]: def train_iterable_gen():\n ...: images = np.array(load_image(\"https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg\")...
2025-03-17T15:59:23Z
2025-03-18T08:57:17Z
2025-03-18T08:57:16Z
NONE
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### Describe the bug This code: ```python def train_iterable_gen(): images = np.array(load_image("https://cdn.britannica.com/61/93061-050-99147DCE/Statue-of-Liberty-Island-New-York-Bay.jpg").resize((128, 128))) yield { "images": np.expand_dims(images, axis=0), "messages": [ ...
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release: 3.4.1
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7,459
Fix data_files filtering
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close https://github.com/huggingface/datasets/issues/7458
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7,458
Loading the `laion/filtered-wit` dataset in streaming mode fails on v3.4.0
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null
[ "thanks for reporting, I released 3.4.1 with a fix" ]
2025-03-17T14:54:02Z
2025-03-17T16:02:04Z
2025-03-17T15:25:55Z
NONE
null
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### Describe the bug Loading https://huggingface.co/datasets/laion/filtered-wit in streaming mode fails after update to `datasets==3.4.0`. The dataset loads fine on v3.3.2. ### Steps to reproduce the bug Steps to reproduce: ``` pip install datastes==3.4.0 python -c "from datasets import load_dataset; load_dataset('l...
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7,457
Document the HF_DATASETS_CACHE env variable
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[ "Strongly agree to this, in addition, I am also suffering to change the cache location similar to other issues (since I changed the environmental variables).\nhttps://github.com/huggingface/datasets/issues/6886", "`HF_DATASETS_CACHE` should be documented there indeed, feel free to open a PR :) ", "Hey, I’d love...
2025-03-17T12:24:50Z
2025-05-06T15:54:39Z
2025-05-06T15:54:39Z
NONE
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### Feature request Hello, I have a use case where my team is sharing models and dataset in shared directory to avoid duplication. I noticed that the [cache documentation for datasets](https://huggingface.co/docs/datasets/main/en/cache) only mention the `HF_HOME` environment variable but never the `HF_DATASETS_CACHE`...
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I_kwDODunzps6uNIA2
7,456
.add_faiss_index and .add_elasticsearch_index returns ImportError at Google Colab
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[ "I can fix this.\nIt's mainly because faiss-gpu requires python<=3.10 but the default python version in colab is 3.11. We just have to downgrade the CPython version down to 3.10 and it should work fine.\n", "I think I just had no chance to meet with faiss-cpu.\nIt could be import problem? \n_has_faiss gets its va...
2025-03-16T00:51:49Z
2025-03-17T15:57:19Z
null
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### Describe the bug At Google Colab ```!pip install faiss-cpu``` works ```import faiss``` no error but ```embeddings_dataset.add_faiss_index(column='embeddings')``` returns ``` [/usr/local/lib/python3.11/dist-packages/datasets/search.py](https://localhost:8080/#) in init(self, device, string_factory, metric_type, cus...
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2,921,933,250
I_kwDODunzps6uKSnC
7,455
Problems with local dataset after upgrade from 3.3.2 to 3.4.0
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[ "Hi ! I just released 3.4.1 with a fix, let me know if it's working now !" ]
2025-03-15T09:22:50Z
2025-03-17T16:20:43Z
null
NONE
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### Describe the bug I was not able to open a local saved dataset anymore that was created using an older datasets version after the upgrade yesterday from datasets 3.3.2 to 3.4.0 The traceback is ``` Traceback (most recent call last): File "/usr/local/lib/python3.10/dist-packages/datasets/packaged_modules/arrow/...
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set dev version
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[ "The docs for this PR live [here](/static-proxy?url=https%3A%2F%2Fmoon-ci-docs.huggingface.co%2Fdocs%2Fdatasets%2Fpr_7454). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update." ]
2025-03-14T16:48:19Z
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release: 3.4.0
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minor docs changes
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Fix resuming after `ds.set_epoch(new_epoch)`
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close https://github.com/huggingface/datasets/issues/7447
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Add IterableDataset.decode with multithreading
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2025-03-13T10:41:35Z
2025-03-14T10:35:37Z
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Useful for dataset streaming for multimodal datasets, and especially for lerobot. It speeds up streaming up to 20 times. When decoding is enabled (default), media types are decoded: * audio -> dict of "array" and "sampling_rate" and "path" * image -> PIL.Image * video -> torchvision.io.VideoReader You can e...
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7,449
Cannot load data with different schemas from different parquet files
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[ "Hi ! `load_dataset` expects all the data_files to have the same schema.\n\nMaybe you can try enforcing certain `features` using:\n\n```python\nfeatures = Features({\"conversations\": {'content': Value('string'), 'role': Value('string',)}})\nds = load_dataset(..., features=features)\n```", "Thanks! It works if I ...
2025-03-13T08:14:49Z
2025-03-17T07:27:48Z
2025-03-17T07:27:46Z
NONE
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### Describe the bug Cannot load samples with optional fields from different files. The schema cannot be correctly derived. ### Steps to reproduce the bug When I place two samples with an optional field `some_extra_field` within a single parquet file, it can be loaded via `load_dataset`. ```python import pandas as ...
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`datasets.disable_caching` doesn't work
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[ "cc", "Yes I have the same issue. It's a confusingly named function. See [here](https://github.com/huggingface/datasets/blob/main/src/datasets/fingerprint.py#L115-L130)\n\n```\n...\nIf disabled, the library will no longer reload cached datasets files when applying transforms to the datasets.\n More precisely...
2025-03-13T06:40:12Z
2025-03-22T04:37:07Z
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When I use `Dataset.from_generator(my_gen)` to load my dataset, it simply skips my changes to the generator function. I tried `datasets.disable_caching`, but it doesn't work!
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2,915,233,248
I_kwDODunzps6twu3g
7,447
Epochs shortened after resuming mid-epoch with Iterable dataset+StatefulDataloader(persistent_workers=True)
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[ "Thanks for reporting ! Maybe we should store the epoch in the state_dict, and then when the dataset is iterated on again after setting a new epoch it should restart from scratch instead of resuming ? wdyt ?", "But why does this only happen when `persistent_workers=True`? I would expect it to work correctly even ...
2025-03-12T21:41:05Z
2025-03-14T17:26:59Z
2025-03-14T10:50:10Z
NONE
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### Describe the bug When `torchdata.stateful_dataloader.StatefulDataloader(persistent_workers=True)` the epochs after resuming only iterate through the examples that were left in the epoch when the training was interrupted. For example, in the script below training is interrupted on step 124 (epoch 1) when 3 batches ...
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7,446
pyarrow.lib.ArrowTypeError: Expected dict key of type str or bytes, got 'int'
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2025-03-12T07:48:37Z
2025-03-12T07:48:37Z
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### Describe the bug A dict with its keys are all str but get following error ```python test_data=[{'input_ids':[1,2,3],'labels':[[Counter({2:1})]]}] dataset = datasets.Dataset.from_list(test_data) ``` ```bash pyarrow.lib.ArrowTypeError: Expected dict key of type str or bytes, got 'int' ``` ### Steps to reproduce the...
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PR_kwDODunzps6ONygU
7,445
Fix small bugs with async map
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[ "The docs for this PR live [here](/static-proxy?url=https%3A%2F%2Fmoon-ci-docs.huggingface.co%2Fdocs%2Fdatasets%2Fpr_7445). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update." ]
2025-03-11T18:30:57Z
2025-03-13T10:38:03Z
2025-03-13T10:37:58Z
MEMBER
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helpful for the next PR to enable parallel image/audio/video decoding and make multimodal datasets go brr (e.g. for lerobot) - fix with_indices - fix resuming with save_state_dict() / load_state_dict() - omg that wasn't easy - remove unnecessary decoding in map() to enable parallelism in FormattedExampleIterable l...
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2,911,202,445
I_kwDODunzps6thWyN
7,444
Excessive warnings when resuming an IterableDataset+buffered shuffle+DDP.
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[ "I had a similar issue when loading the saved iterable dataset state to fast-forward to the mid-train location before resuming. This happened when I shuffled a concatenated dataset. A `iterable_data_state_dict.json` file was saved during checkpointing in the Trainer with:\n```\ndef _save_rng_state(self, output_dir)...
2025-03-11T16:34:39Z
2025-05-13T09:41:03Z
null
NONE
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### Describe the bug I have a large dataset that I shared into 1024 shards and save on the disk during pre-processing. During training, I load the dataset using load_from_disk() and convert it into an iterable dataset, shuffle it and split the shards to different DDP nodes using the recommended method. However, when ...
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2,908,585,656
I_kwDODunzps6tXX64
7,443
index error when num_shards > len(dataset)
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[ "Actually, looking at the code a bit more carefully, maybe an even better solution is to explicitly set `num_shards=len(self)` somewhere inside both `push_to_hub()` and `save_to_disk()` when these functions are invoked with `num_shards > len(dataset)`." ]
2025-03-10T22:40:59Z
2025-03-10T23:43:08Z
null
NONE
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In `ds.push_to_hub()` and `ds.save_to_disk()`, `num_shards` must be smaller than or equal to the number of rows in the dataset, but currently this is not checked anywhere inside these functions. Attempting to invoke these functions with `num_shards > len(dataset)` should raise an informative `ValueError`. I frequently...
null
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2,905,543,017
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7,442
Flexible Loader
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[ "Ideally `save_to_disk` should save in a format compatible with load_dataset, wdyt ?", "> Ideally `save_to_disk` should save in a format compatible with load_dataset, wdyt ?\n\nThat would be perfect if not at least a flexible loader.", "@lhoestq For now, you can use this small utility library: [nanoml](https://...
2025-03-09T16:55:03Z
2025-03-27T23:58:17Z
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### Feature request Can we have a utility function that will use `load_from_disk` when given the local path and `load_dataset` if given an HF dataset? It can be something as simple as this one: ``` def load_hf_dataset(path_or_name): if os.path.exists(path_or_name): return load_from_disk(path_or_name) ...
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2,904,702,329
I_kwDODunzps6tIj15
7,441
`drop_last_batch` does not drop the last batch using IterableDataset + interleave_datasets + multi_worker
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[ "Hi @memray, I’d like to help fix the issue with `drop_last_batch` not working when `num_workers > 1`. I’ll investigate and propose a solution. Thanks!\n", "Thank you very much for offering to help! I also noticed a problem related to a previous issue and left a comment [here](https://github.com/huggingface/datas...
2025-03-08T10:28:44Z
2025-03-09T21:27:33Z
null
NONE
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### Describe the bug See the script below `drop_last_batch=True` is defined using map() for each dataset. The last batch for each dataset is expected to be dropped, id 21-25. The code behaves as expected when num_workers=0 or 1. When using num_workers>1, 'a-11', 'b-11', 'a-12', 'b-12' are gone and instead 21 and 22 a...
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2,903,740,662
I_kwDODunzps6tE5D2
7,440
IterableDataset raises FileNotFoundError instead of retrying
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[ "I have since been training more models with identical architectures over the same dataset, and it is completely unstable. One has now failed at chunk9/1215, whilst others have gotten past that.\n```python\nFileNotFoundError: zstd://example_train_1215.jsonl::hf://datasets/cerebras/SlimPajama-627B@2d0accdd58c5d55119...
2025-03-07T19:14:18Z
2025-04-17T23:40:35Z
null
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### Describe the bug In https://github.com/huggingface/datasets/issues/6843 it was noted that the streaming feature of `datasets` is highly susceptible to outages and doesn't back off for long (or even *at all*). I was training a model while streaming SlimPajama and training crashed with a `FileNotFoundError`. I can ...
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PR_kwDODunzps6NoCdD
7,439
Fix multi gpu process example
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[ "Okay nevermind looks like to works both ways for models. but my doubt still remains, isnt this changing the device of the model every batch?" ]
2025-03-06T11:29:19Z
2025-03-06T17:07:28Z
2025-03-06T17:06:38Z
NONE
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to is not an inplace function. But i am not sure about this code anyway, i think this is modifying the global variable `model` everytime the function is called? Which is on every batch? So it is juggling the same model on every gpu right? Isnt that very inefficient?
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7,438
Allow dataset row indexing with np.int types (#7423)
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2025-03-06T03:10:43Z
2025-03-06T03:10:43Z
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@lhoestq Proposed fix for #7423. Added a couple simple tests as requested. I had some test failures related to Java and pyspark even when installing with dev but these don't seem to be related to the changes here and fail for me even on clean main. The typeerror raised when using the wrong type is: "Wrong key type...
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7,437
Use pyupgrade --py39-plus for remaining files
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2025-03-06T02:12:25Z
2025-04-15T14:47:54Z
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CONTRIBUTOR
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This work follows #7428. And "requires-python" is set in pyproject.toml
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chore: fix typos
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2025-03-05T20:17:54Z
2025-04-28T14:00:09Z
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Refactor `string_to_dict` to return `None` if there is no match instead of raising `ValueError`
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[ "cc: @lhoestq ", "I am going to rebase #7434 onto this branch. Then we can merge this one first if you approve, and then #7434.", "@lhoestq any thoughts here?", "The docs for this PR live [here](/static-proxy?url=https%3A%2F%2Fmoon-ci-docs.huggingface.co%2Fdocs%2Fdatasets%2Fpr_7435). All of your documentation changes will be reflected on ...
2025-03-04T22:01:20Z
2025-03-12T16:52:00Z
2025-03-12T16:52:00Z
NONE
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Making this change, as encouraged here: * https://github.com/huggingface/datasets/pull/7434#discussion_r1979933054 instead of having the pattern of using `try`-`except` to handle when there is no match, we can instead check if the return value is `None`; we can also assert that the return value should not be `Non...
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Refactor `Dataset.map` to reuse cache files mapped with different `num_proc`
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[ "@lhoestq please let me know what you think about this.", "It looks like I can't change the merge target to #7435, so it will look like there is a bunch of extra stuff until #7435 is in main.", "@lhoestq Thanks so much for reviewing #7435! Now that that's merged, I think this PR is ready!! Can you kick off CI w...
2025-03-04T06:12:37Z
2025-05-14T10:45:10Z
2025-05-12T15:14:08Z
NONE
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Fixes #7433 This refactor unifies `num_proc is None or num_proc == 1` and `num_proc > 1`; instead of handling them completely separately where one uses a list of kwargs and shards and the other just uses a single set of kwargs and `self`, by wrapping the `num_proc == 1` case in a list and making the difference just ...
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`Dataset.map` ignores existing caches and remaps when ran with different `num_proc`
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[ "This feels related: https://github.com/huggingface/datasets/issues/3044", "@lhoestq This comment specifically, I agree:\n\n* https://github.com/huggingface/datasets/issues/3044#issuecomment-1239877570\n\n> Almost a year later and I'm in a similar boat. Using custom fingerprints and when using multiprocessing the...
2025-03-03T05:51:26Z
2025-05-12T15:14:09Z
2025-05-12T15:14:09Z
NONE
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### Describe the bug If you `map` a dataset and save it to a specific `cache_file_name` with a specific `num_proc`, and then call map again with that same existing `cache_file_name` but a different `num_proc`, the dataset will be re-mapped. ### Steps to reproduce the bug 1. Download a dataset ```python import datase...
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Fix type annotation
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[ "Thanks ! There is https://github.com/huggingface/datasets/pull/7426 already that fixes the issue, I'm closing your PR if you don't mind" ]
2025-02-28T17:28:20Z
2025-03-04T15:53:03Z
2025-03-04T15:53:03Z
CONTRIBUTOR
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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...
2025-02-28T14:05:22Z
2025-03-04T15:02:26Z
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### 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 ...
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Error in code "Time to slice and dice" from course "NLP Course"
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[ "You should open an issue in the NLP course website / github page. I'm closing this issue if you don't mind", "ok, i don't mind, i'll mark the error there" ]
2025-02-28T11:36:10Z
2025-03-05T11:32:47Z
2025-03-03T17:52:15Z
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### Describe the bug When we execute code ``` frequencies = ( train_df["condition"] .value_counts() .to_frame() .reset_index() .rename(columns={"index": "condition", "condition": "frequency"}) ) frequencies.head() ``` answer should be like this condition | frequency birth control | 27655 dep...
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Improved type annotation
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[ "@lhoestq Could someone please take a quick look or let me know if there’s anything I should change? Thanks!", "could you fix the conflicts ? I think some type annotations have been improved since your first commit", "It should be good now.\r\nI'm happy to add more annotations or refine further if needed—just ...
2025-02-28T10:39:10Z
2025-05-15T12:27:17Z
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I've refined several type annotations throughout the codebase to align with current best practices and enhance overall clarity. Given the complexity of the code, there may still be areas that need further attention. I welcome any feedback or suggestions to make these improvements even better. - Fixes #7202
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Use pyupgrade --py39-plus
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[ "Hi ! can you run `make style` to fix code formatting ?", "@lhoestq Fixed", "The docs for this PR live [here](/static-proxy?url=https%3A%2F%2Fmoon-ci-docs.huggingface.co%2Fdocs%2Fdatasets%2Fpr_7428). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update." ]
2025-02-28T03:39:44Z
2025-03-22T00:51:20Z
2025-03-05T15:04:16Z
CONTRIBUTOR
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Error splitting the input into NAL units.
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[ "First time I see this error :/ maybe it's an issue with your version of `multiprocess` and `dill` ? Make sure they are compatible with `datasets`", "> First time I see this error :/ maybe it's an issue with your version of `multiprocess` and `dill` ? Make sure they are compatible with `datasets`\n\nany recommend...
2025-02-28T02:30:15Z
2025-03-04T01:40:28Z
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### Describe the bug I am trying to finetune qwen2.5-vl on 16 * 80G GPUS, and I use `LLaMA-Factory` and set `preprocessing_num_workers=16`. However, I met the following error and the program seem to got crush. It seems that the error come from `datasets` library The error logging is like following: ```text Convertin...
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fix: None default with bool type on load creates typing error
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2025-02-27T08:11:36Z
2025-03-04T15:53:40Z
2025-03-04T15:53:40Z
CONTRIBUTOR
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Hello! Pyright flags any use of `load_dataset` as an error, because the default for `trust_remote_code` is `None`, but the function is typed as `bool`, not `Optional[bool]`. I changed the type and docstrings to reflect this, but no other code was touched.
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2,883,684,686
I_kwDODunzps6r4YlO
7,425
load_dataset("livecodebench/code_generation_lite", version_tag="release_v2") TypeError: 'NoneType' object is not callable
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[ "> datasets\n\nHi, have you solved this bug? Today I also met the same problem about `livecodebench/code_generation_lite` when evaluating the `Open-R1` repo. I am looking forward to your reply!\n\n![Image](https://github.com/user-attachments/assets/02e92fbf-da33-41b3-b8d4-f79b293a54f1)", "Hey guys,\nI tried to re...
2025-02-27T07:36:02Z
2025-03-27T05:05:33Z
null
NONE
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### Describe the bug from datasets import load_dataset lcb_codegen = load_dataset("livecodebench/code_generation_lite", version_tag="release_v2") or configs = get_dataset_config_names("livecodebench/code_generation_lite", trust_remote_code=True) both error: Traceback (most recent call last): File "", line 1, in File...
null
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Faster folder based builder + parquet support + allow repeated media + use torchvideo
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2025-02-26T19:55:18Z
2025-03-05T18:51:00Z
2025-03-05T17:41:23Z
MEMBER
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This will be useful for LeRobotDataset (robotics datasets for [lerobot](https://github.com/huggingface/lerobot) based on videos) Impacted builders: - ImageFolder - AudioFolder - VideoFolder Improvements: - faster to stream (got a 5x speed up on an image dataset) - improved RAM usage - support for metadata.p...
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2,879,271,409
I_kwDODunzps6rnjHx
7,423
Row indexing a dataset with numpy integers
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[ "Would be cool to be consistent when it comes to indexing with numpy objects, if we do accept numpy arrays we should indeed accept numpy integers. Your idea sounds reasonable, I'd also be in favor of adding a simple test as well" ]
2025-02-25T18:44:45Z
2025-03-03T17:55:24Z
null
NONE
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### Feature request Allow indexing datasets with a scalar numpy integer type. ### Motivation Indexing a dataset with a scalar numpy.int* object raises a TypeError. This is due to the test in `datasets/formatting/formatting.py:key_to_query_type` ``` python def key_to_query_type(key: Union[int, slice, range, str, Ite...
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2,878,369,052
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7,421
DVC integration broken
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[ "Unfortunately `url` is a reserved argument in `fsspec.url_to_fs`, so ideally file system implementations like DVC should use another argument name to avoid this kind of errors" ]
2025-02-25T13:14:31Z
2025-03-03T17:42:02Z
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### Describe the bug The DVC integration seems to be broken. Followed this guide: https://dvc.org/doc/user-guide/integrations/huggingface ### Steps to reproduce the bug #### Script to reproduce ~~~python from datasets import load_dataset dataset = load_dataset( "csv", data_files="dvc://workshop/satellite-d...
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I_kwDODunzps6rcJRI
7,420
better correspondence between cached and saved datasets created using from_generator
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2025-02-24T22:14:37Z
2025-02-26T03:10:22Z
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CONTRIBUTOR
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### Feature request At the moment `.from_generator` can only create a dataset that lives in the cache. The cached dataset cannot be loaded with `load_from_disk` because the cache folder is missing `state.json`. So the only way to convert this cached dataset to a regular is to use `save_to_disk` which needs to create a...
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Import order crashes script execution
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2025-02-24T17:03:43Z
2025-02-24T17:03:43Z
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### Describe the bug Hello, I'm trying to convert an HF dataset into a TFRecord so I'm importing `tensorflow` and `datasets` to do so. Depending in what order I'm importing those librairies, my code hangs forever and is unkillable (CTRL+C doesn't work, I need to kill my shell entirely). Thank you for your help 🙏 ...
null
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pyarrow.lib.arrowinvalid: cannot mix list and non-list, non-null values with map function
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[ "@lhoestq ", "Can you try passing text: None for the image object ? Pyarrow expects all the objects to have the exact same type, in particular the dicttionaries in \"content\" should all have the keys \"type\" and \"text\"", "The following modification on system prompt works, but it is different from the usual ...
2025-02-21T10:58:06Z
2025-02-25T15:26:46Z
null
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### Describe the bug Encounter pyarrow.lib.arrowinvalid error with map function in some example when loading the dataset ### Steps to reproduce the bug ``` from datasets import load_dataset from PIL import Image, PngImagePlugin dataset = load_dataset("leonardPKU/GEOQA_R1V_Train_8K") system_prompt="You are a helpful...
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set dev version
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2025-02-20T17:45:29Z
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Release: 3.3.2
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Shard Dataset at specific indices
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[ "Hi ! if it's an option I'd suggest to have one sequence per row instead.\n\nOtherwise you'd have to make your own save/load mechanism", "Saving one sequence per row is very difficult and heavy and makes all the optimizations pointless. How would a custom save/load mechanism look like?", "You can use `pyarrow` ...
2025-02-20T10:43:10Z
2025-02-24T11:06:45Z
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I have a dataset of sequences, where each example in the sequence is a separate row in the dataset (similar to LeRobotDataset). When running `Dataset.save_to_disk` how can I provide indices where it's possible to shard the dataset such that no episode spans more than 1 shard. Consequently, when I run `Dataset.load_from...
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Gracefully cancel async tasks
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2025-02-19T16:10:58Z
2025-02-20T14:12:26Z
2025-02-20T14:12:23Z
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Documentation on multiple media files of the same type with WebDataset
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[ "Yes this is correct and it works with huggingface datasets as well ! Feel free to include an example here: https://github.com/huggingface/datasets/blob/main/docs/source/video_dataset.mdx" ]
2025-02-18T16:13:20Z
2025-02-20T14:17:54Z
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The [current documentation](https://huggingface.co/docs/datasets/en/video_dataset) on a creating a video dataset includes only examples with one media file and one json. It would be useful to have examples where multiple files of the same type are included. For example, in a sign language dataset, you may have a base v...
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Index Error Invalid Ket is out of bounds for size 0 for code-search-net/code_search_net dataset
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2025-02-18T05:58:33Z
2025-02-18T06:42:07Z
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### Describe the bug I am trying to do model pruning on sentence-transformers/all-mini-L6-v2 for the code-search-net/code_search_net dataset using INCTrainer class However I am getting below error ``` raise IndexError(f"Invalid Key: {key is our of bounds for size {size}") IndexError: Invalid key: 1840208 is out of b...
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Attempt to fix multiprocessing hang by closing and joining the pool before termination
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2025-02-17T23:58:03Z
2025-02-19T21:11:24Z
2025-02-19T13:40:32Z
CONTRIBUTOR
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https://github.com/huggingface/datasets/issues/6393 has plagued me on and off for a very long time. I have had various workarounds (one time combining two filter calls into one filter call removed the issue, another time making rank 0 go first resolved a cache race condition, one time i think upgrading the version of s...
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Set dev version
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2025-02-17T14:54:39Z
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2025-02-17T14:52:12Z
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Fix filter speed regression
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close https://github.com/huggingface/datasets/issues/7404
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