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`str(sql.compile())` drops the bound values, so two queries that differ only by a WHERE, LIMIT, or IN parameter reused one cache entry. the key now inlines those binds.
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`save_to_disk(num_proc=...)` on an in-memory dataset sends the whole table to every worker, once per shard, instead of just that shard's rows. So it is much slower and uses much more memory than it should.
```python
import pickle
from datasets import Dataset
ds = Dataset.from_dict({"text": ["some t... | value:https://api.github.com/repos/huggingface/datasets/issues/8880/comments | value:PR_kwDODunzps8AAAABKLS0rQ | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8880", "html_url": "https://github.com/huggingface/datasets/pull/8880", "diff_url": "https://github.com/huggingface/datasets/pull/8880.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8880.patch", "merged_at": null} | value:2026-10-23T04:39:59Z | value:https://api.github.com/repos/huggingface/datasets/issues/8880/labels{/name} | value:8880 | json:{"login": "hzmsh", "id": 35788891, "node_id": "MDQ6VXNlcjM1Nzg4ODkx", "avatar_url": "https://avatars.githubusercontent.com/u/35788891?v=4", "gravatar_id": "", "url": "https://api.github.com/users/hzmsh", "html_url": "https://github.com/hzmsh", "followers_url": "https://api.github.com/users/hzmsh/followers", "follo... | value:False | true | |||||||||||
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Replaces `Pandas._generate_tables()` with an unconditional migration error before file opening or unpickling. Builder construction and compatible prepared Arrow cache reuse remain supported. File ... | value:https://api.github.com/repos/huggingface/datasets/issues/8879/comments | value:PR_kwDODunzps8AAAABKJ5kNw | value:closed | value:6 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8879", "html_url": "https://github.com/huggingface/datasets/pull/8879", "diff_url": "https://github.com/huggingface/datasets/pull/8879.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8879.patch", "merged_at": "2026-11-09T16:08:56Z"} | value:2026-11-09T21:44:31Z | value:https://api.github.com/repos/huggingface/datasets/issues/8879/labels{/name} | value:8879 | json:{"login": "SaiTeja-Erukude", "id": 72928639, "node_id": "MDQ6VXNlcjcyOTI4NjM5", "avatar_url": "https://avatars.githubusercontent.com/u/72928639?v=4", "gravatar_id": "", "url": "https://api.github.com/users/SaiTeja-Erukude", "html_url": "https://github.com/SaiTeja-Erukude", "followers_url": "https://api.github.com/... | value:False | true | |||||||||
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```pyt... | value:https://api.github.com/repos/huggingface/datasets/issues/8878/comments | value:PR_kwDODunzps8AAAABKIPsRg | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8878", "html_url": "https://github.com/huggingface/datasets/pull/8878", "diff_url": "https://github.com/huggingface/datasets/pull/8878.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8878.patch", "merged_at": null} | value:2026-10-29T20:21:30Z | value:https://api.github.com/repos/huggingface/datasets/issues/8878/labels{/name} | value:8878 | json:{"login": "cwklurks", "id": 147788030, "node_id": "U_kgDOCM8Q_g", "avatar_url": "https://avatars.githubusercontent.com/u/147788030?v=4", "gravatar_id": "", "url": "https://api.github.com/users/cwklurks", "html_url": "https://github.com/cwklurks", "followers_url": "https://api.github.com/users/cwklurks/followers", ... | value:False | true | |||||||||||
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When `Dataset.from_sql()` receives a SQLAlchemy `Selectable`, queries with different parameter values can use the same cache key. If the first query is cached, the next query can return its rows instead of the correct results, without warning. This affects `WHERE` conditions, `LIMIT`, and ex... | value:https://api.github.com/repos/huggingface/datasets/issues/8877/comments | value:I_kwDODunzps8AAAABZN6xNQ | value:open | value:1 | value:2026-10-22T20:54:04Z | value:https://api.github.com/repos/huggingface/datasets/issues/8877/labels{/name} | value:8877 | json:{"login": "gorkadabo1", "id": 106764709, "node_id": "U_kgDOBl0ZpQ", "avatar_url": "https://avatars.githubusercontent.com/u/106764709?v=4", "gravatar_id": "", "url": "https://api.github.com/users/gorkadabo1", "html_url": "https://github.com/gorkadabo1", "followers_url": "https://api.github.com/users/gorkadabo1/foll... | true | ||||||||||
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When iterating an `IterableDataset` example by example, rows go through `RebatchedArrowExamplesIterable` with `batch_size=1`, so each row ends up as a 1-row Arrow table that gets cast and formatted on its own. That per-row overhead is why `for ex in ds` is slow, including after `to_iterable_dataset()... | value:https://api.github.com/repos/huggingface/datasets/issues/8876/comments | value:PR_kwDODunzps8AAAABKHaeEw | value:open | value:2 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8876", "html_url": "https://github.com/huggingface/datasets/pull/8876", "diff_url": "https://github.com/huggingface/datasets/pull/8876.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8876.patch", "merged_at": null} | value:2026-11-06T11:46:07Z | value:https://api.github.com/repos/huggingface/datasets/issues/8876/labels{/name} | value:8876 | json:{"login": "vsaraikin", "id": 43279475, "node_id": "MDQ6VXNlcjQzMjc5NDc1", "avatar_url": "https://avatars.githubusercontent.com/u/43279475?v=4", "gravatar_id": "", "url": "https://api.github.com/users/vsaraikin", "html_url": "https://github.com/vsaraikin", "followers_url": "https://api.github.com/users/vsaraikin/fo... | value:False | true | |||||||||||
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Write one empty batch through the existing pandas conversion so th... | value:https://api.github.com/repos/huggingface/datasets/issues/8875/comments | value:PR_kwDODunzps8AAAABKEVyyg | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8875", "html_url": "https://github.com/huggingface/datasets/pull/8875", "diff_url": "https://github.com/huggingface/datasets/pull/8875.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8875.patch", "merged_at": null} | value:2026-10-22T16:20:36Z | value:https://api.github.com/repos/huggingface/datasets/issues/8875/labels{/name} | value:8875 | json:{"login": "emme1t", "id": 149944796, "node_id": "U_kgDOCO_53A", "avatar_url": "https://avatars.githubusercontent.com/u/149944796?v=4", "gravatar_id": "", "url": "https://api.github.com/users/emme1t", "html_url": "https://github.com/emme1t", "followers_url": "https://api.github.com/users/emme1t/followers", "followi... | value:False | true | |||||||||||
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Preserve unrestricted extension filters when calling `DataFilesPatternsList.filter_extensions`.
`DataFilesPatternsList.from_patterns(["*"])` stores `allowed_extensions=[None]`, where `None` means unrestricted. Calling `.filter_extensions([".json"])` on unchanged main attempts `None + [".json"]` and r... | value:https://api.github.com/repos/huggingface/datasets/issues/8874/comments | value:PR_kwDODunzps8AAAABKBN9VQ | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8874", "html_url": "https://github.com/huggingface/datasets/pull/8874", "diff_url": "https://github.com/huggingface/datasets/pull/8874.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8874.patch", "merged_at": null} | value:2026-11-03T07:55:39Z | value:https://api.github.com/repos/huggingface/datasets/issues/8874/labels{/name} | value:8874 | json:{"login": "nawaaaaaAaar", "id": 198336470, "node_id": "U_kgDOC9Jf1g", "avatar_url": "https://avatars.githubusercontent.com/u/198336470?v=4", "gravatar_id": "", "url": "https://api.github.com/users/nawaaaaaAaar", "html_url": "https://github.com/nawaaaaaAaar", "followers_url": "https://api.github.com/users/nawaaaaaA... | value:False | true | |||||||||||
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Removed a duplicated 'a' in a load.py docstring ('of a a Storage Bucket') and a duplicated 'to' in docs/source/process.mdx ('save it to to push_to_hub').
## Why
A small, objectively-verifiable improvement (typo) found during a
daily open-source maintenance pass (2026-10-22).
## How verified
Found both w... | value:https://api.github.com/repos/huggingface/datasets/issues/8873/comments | value:PR_kwDODunzps8AAAABJ_o3Mw | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8873", "html_url": "https://github.com/huggingface/datasets/pull/8873", "diff_url": "https://github.com/huggingface/datasets/pull/8873.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8873.patch", "merged_at": null} | value:2026-10-22T10:10:32Z | value:https://api.github.com/repos/huggingface/datasets/issues/8873/labels{/name} | value:8873 | json:{"login": "aarushkandukoori", "id": 66923736, "node_id": "MDQ6VXNlcjY2OTIzNzM2", "avatar_url": "https://avatars.githubusercontent.com/u/66923736?v=4", "gravatar_id": "", "url": "https://api.github.com/users/aarushkandukoori", "html_url": "https://github.com/aarushkandukoori", "followers_url": "https://api.github.c... | value:False | true | |||||||||||
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The grouping callback... | value:https://api.github.com/repos/huggingface/datasets/issues/8872/comments | value:PR_kwDODunzps8AAAABJ-EYoA | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8872", "html_url": "https://github.com/huggingface/datasets/pull/8872", "diff_url": "https://github.com/huggingface/datasets/pull/8872.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8872.patch", "merged_at": null} | value:2026-10-22T07:55:50Z | value:https://api.github.com/repos/huggingface/datasets/issues/8872/labels{/name} | value:8872 | json:{"login": "liangqianxing", "id": 113435208, "node_id": "U_kgDOBsLiSA", "avatar_url": "https://avatars.githubusercontent.com/u/113435208?v=4", "gravatar_id": "", "url": "https://api.github.com/users/liangqianxing", "html_url": "https://github.com/liangqianxing", "followers_url": "https://api.github.com/users/liangq... | value:False | true | |||||||||||
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Use empty byte strings only in the temporary examples passed to schema inference. Th... | value:https://api.github.com/repos/huggingface/datasets/issues/8870/comments | value:PR_kwDODunzps8AAAABJ8DYIQ | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8870", "html_url": "https://github.com/huggingface/datasets/pull/8870", "diff_url": "https://github.com/huggingface/datasets/pull/8870.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8870.patch", "merged_at": null} | value:2026-10-22T04:04:04Z | value:https://api.github.com/repos/huggingface/datasets/issues/8870/labels{/name} | value:8870 | json:{"login": "cola1917", "id": 58059908, "node_id": "MDQ6VXNlcjU4MDU5OTA4", "avatar_url": "https://avatars.githubusercontent.com/u/58059908?v=4", "gravatar_id": "", "url": "https://api.github.com/users/cola1917", "html_url": "https://github.com/cola1917", "followers_url": "https://api.github.com/users/cola1917/follow... | value:False | true | |||||||||||
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```python
from datasets import Dataset
ds = Dataset.from_dict({"a": [1, 2], "b": [3, 4]})
sel = ds.select_columns(["a", "a"])
print(sel.column_names, len(sel.features)) # ['a', 'a'] 1
sel[... | value:https://api.github.com/repos/huggingface/datasets/issues/8868/comments | value:PR_kwDODunzps8AAAABJ6IhkA | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8868", "html_url": "https://github.com/huggingface/datasets/pull/8868", "diff_url": "https://github.com/huggingface/datasets/pull/8868.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8868.patch", "merged_at": null} | value:2026-10-21T23:50:02Z | value:https://api.github.com/repos/huggingface/datasets/issues/8868/labels{/name} | value:8868 | json:{"login": "astroknot-sheep", "id": 105595392, "node_id": "U_kgDOBktCAA", "avatar_url": "https://avatars.githubusercontent.com/u/105595392?v=4", "gravatar_id": "", "url": "https://api.github.com/users/astroknot-sheep", "html_url": "https://github.com/astroknot-sheep", "followers_url": "https://api.github.com/users/... | value:False | true | |||||||||||
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Related to #6046.
Forward the configured DownloadConfig.user_agent to fsspec HTTP/HTTPS requests.
- Reuse the existing get_datasets_user_agent() helper.
- Preserve explicitly configured User-Agent headers.
- Keep existing HTTP proxy handling unchanged.
- Add regression tests for default and custom h... | value:https://api.github.com/repos/huggingface/datasets/issues/8866/comments | value:PR_kwDODunzps8AAAABJkZ4jg | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8866", "html_url": "https://github.com/huggingface/datasets/pull/8866", "diff_url": "https://github.com/huggingface/datasets/pull/8866.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8866.patch", "merged_at": null} | value:2026-10-21T20:17:28Z | value:https://api.github.com/repos/huggingface/datasets/issues/8866/labels{/name} | value:8866 | json:{"login": "MonikaDvorackova", "id": 95243292, "node_id": "U_kgDOBa1MHA", "avatar_url": "https://avatars.githubusercontent.com/u/95243292?v=4", "gravatar_id": "", "url": "https://api.github.com/users/MonikaDvorackova", "html_url": "https://github.com/MonikaDvorackova", "followers_url": "https://api.github.com/users... | value:False | true | |||||||||||
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## What does this PR do?
Fixes #8859
Concatenating the same datasets using different axes can produce the same fingerprint. As a result, `map()` can reuse cached results from the wrong concatenation without warning.
This change adds `axis` to the existing fingerprint calculation and adds two regression tests ... | value:https://api.github.com/repos/huggingface/datasets/issues/8865/comments | value:PR_kwDODunzps8AAAABJhKMkg | value:closed | value:1 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8865", "html_url": "https://github.com/huggingface/datasets/pull/8865", "diff_url": "https://github.com/huggingface/datasets/pull/8865.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8865.patch", "merged_at": "2026-10-23T12:22:31Z"} | value:2026-10-25T13:42:17Z | value:https://api.github.com/repos/huggingface/datasets/issues/8865/labels{/name} | value:8865 | json:{"login": "gorkadabo1", "id": 106764709, "node_id": "U_kgDOBl0ZpQ", "avatar_url": "https://avatars.githubusercontent.com/u/106764709?v=4", "gravatar_id": "", "url": "https://api.github.com/users/gorkadabo1", "html_url": "https://github.com/gorkadabo1", "followers_url": "https://api.github.com/users/gorkadabo1/foll... | value:False | true | |||||||||
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`MappedExamplesIterable.shard_data_sources`, `shuffle_data_... | value:https://api.github.com/repos/huggingface/datasets/issues/8864/comments | value:PR_kwDODunzps8AAAABJhHAeA | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8864", "html_url": "https://github.com/huggingface/datasets/pull/8864", "diff_url": "https://github.com/huggingface/datasets/pull/8864.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8864.patch", "merged_at": null} | value:2026-10-20T09:17:53Z | value:https://api.github.com/repos/huggingface/datasets/issues/8864/labels{/name} | value:8864 | json:{"login": "RaphaelFakhri", "id": 153192858, "node_id": "U_kgDOCSGJmg", "avatar_url": "https://avatars.githubusercontent.com/u/153192858?v=4", "gravatar_id": "", "url": "https://api.github.com/users/RaphaelFakhri", "html_url": "https://github.com/RaphaelFakhri", "followers_url": "https://api.github.com/users/Raphae... | value:False | true | |||||||||||
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Since #8791, `load_dataset(..., streaming=True)` decodes media datasets from the Hub in worker threads by default. `decode()` replaces that threaded decoding step when it is the last step of the dataset, but `shard()` loses track of it. After `ds.shard(...)`, `ds.decode(False)` keeps yieldin... | value:https://api.github.com/repos/huggingface/datasets/issues/8863/comments | value:I_kwDODunzps8AAAABYgBm-w | value:open | value:0 | value:2026-10-20T09:17:23Z | value:https://api.github.com/repos/huggingface/datasets/issues/8863/labels{/name} | value:8863 | json:{"login": "RaphaelFakhri", "id": 153192858, "node_id": "U_kgDOCSGJmg", "avatar_url": "https://avatars.githubusercontent.com/u/153192858?v=4", "gravatar_id": "", "url": "https://api.github.com/users/RaphaelFakhri", "html_url": "https://github.com/RaphaelFakhri", "followers_url": "https://api.github.com/users/Raphae... | true | |||||||||||
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Track loop ownership per iterator, settle that ... | value:https://api.github.com/repos/huggingface/datasets/issues/8862/comments | value:PR_kwDODunzps8AAAABJg1jBQ | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8862", "html_url": "https://github.com/huggingface/datasets/pull/8862", "diff_url": "https://github.com/huggingface/datasets/pull/8862.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8862.patch", "merged_at": null} | value:2026-10-20T08:52:50Z | value:https://api.github.com/repos/huggingface/datasets/issues/8862/labels{/name} | value:8862 | json:{"login": "parlorsky", "id": 69785001, "node_id": "MDQ6VXNlcjY5Nzg1MDAx", "avatar_url": "https://avatars.githubusercontent.com/u/69785001?v=4", "gravatar_id": "", "url": "https://api.github.com/users/parlorsky", "html_url": "https://github.com/parlorsky", "followers_url": "https://api.github.com/users/parlorsky/fo... | value:False | true | |||||||||||
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Use the existing recursive `... | value:https://api.github.com/repos/huggingface/datasets/issues/8861/comments | value:PR_kwDODunzps8AAAABJgxs4g | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8861", "html_url": "https://github.com/huggingface/datasets/pull/8861", "diff_url": "https://github.com/huggingface/datasets/pull/8861.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8861.patch", "merged_at": null} | value:2026-10-20T08:47:21Z | value:https://api.github.com/repos/huggingface/datasets/issues/8861/labels{/name} | value:8861 | json:{"login": "parlorsky", "id": 69785001, "node_id": "MDQ6VXNlcjY5Nzg1MDAx", "avatar_url": "https://avatars.githubusercontent.com/u/69785001?v=4", "gravatar_id": "", "url": "https://api.github.com/users/parlorsky", "html_url": "https://github.com/parlorsky", "followers_url": "https://api.github.com/users/parlorsky/fo... | value:False | true | |||||||||||
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Keep the field d... | value:https://api.github.com/repos/huggingface/datasets/issues/8860/comments | value:PR_kwDODunzps8AAAABJgsbSA | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8860", "html_url": "https://github.com/huggingface/datasets/pull/8860", "diff_url": "https://github.com/huggingface/datasets/pull/8860.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8860.patch", "merged_at": null} | value:2026-10-20T08:39:31Z | value:https://api.github.com/repos/huggingface/datasets/issues/8860/labels{/name} | value:8860 | json:{"login": "parlorsky", "id": 69785001, "node_id": "MDQ6VXNlcjY5Nzg1MDAx", "avatar_url": "https://avatars.githubusercontent.com/u/69785001?v=4", "gravatar_id": "", "url": "https://api.github.com/users/parlorsky", "html_url": "https://github.com/parlorsky", "followers_url": "https://api.github.com/users/parlorsky/fo... | value:False | true | |||||||||||
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Concatenating the same disk-backed datasets using different axes gives the same fingerprint, even though the resulting datasets are different. As a result, calling `map()` on one can reuse the cached results of the other without warning.
In the example below, a dataset with two rows of pair... | value:https://api.github.com/repos/huggingface/datasets/issues/8859/comments | value:I_kwDODunzps8AAAABYfB3Qg | value:closed | value:1 | value:2026-10-23T12:22:33Z | value:https://api.github.com/repos/huggingface/datasets/issues/8859/labels{/name} | value:8859 | json:{"login": "gorkadabo1", "id": 106764709, "node_id": "U_kgDOBl0ZpQ", "avatar_url": "https://avatars.githubusercontent.com/u/106764709?v=4", "gravatar_id": "", "url": "https://api.github.com/users/gorkadabo1", "html_url": "https://github.com/gorkadabo1", "followers_url": "https://api.github.com/users/gorkadabo1/foll... | true | |||||||
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```python
import pathlib, tempfile
from datasets import load_dataset
path = pathlib.Path(tempfile.mkdtemp()) / "data.csv"
path.write_text("x\n" + "\n".join(map(str, range(10))) + "\n")
print(list(load_datase... | value:https://api.github.com/repos/huggingface/datasets/issues/8858/comments | value:PR_kwDODunzps8AAAABJd3NcQ | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8858", "html_url": "https://github.com/huggingface/datasets/pull/8858", "diff_url": "https://github.com/huggingface/datasets/pull/8858.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8858.patch", "merged_at": null} | value:2026-10-20T02:45:37Z | value:https://api.github.com/repos/huggingface/datasets/issues/8858/labels{/name} | value:8858 | json:{"login": "spicysharkco", "id": 321699413, "node_id": "U_kgDOEyy-VQ", "avatar_url": "https://avatars.githubusercontent.com/u/321699413?v=4", "gravatar_id": "", "url": "https://api.github.com/users/spicysharkco", "html_url": "https://github.com/spicysharkco", "followers_url": "https://api.github.com/users/spicyshar... | value:False | true | |||||||||||
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This change raises `ValueError` before overwriting an existing ... | value:https://api.github.com/repos/huggingface/datasets/issues/8856/comments | value:PR_kwDODunzps8AAAABJXn3aA | value:closed | value:1 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8856", "html_url": "https://github.com/huggingface/datasets/pull/8856", "diff_url": "https://github.com/huggingface/datasets/pull/8856.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8856.patch", "merged_at": "2026-10-19T18:07:32Z"} | value:2026-10-19T18:07:32Z | value:https://api.github.com/repos/huggingface/datasets/issues/8856/labels{/name} | value:8856 | json:{"login": "pavanmudumba", "id": 158800627, "node_id": "U_kgDOCXca8w", "avatar_url": "https://avatars.githubusercontent.com/u/158800627?v=4", "gravatar_id": "", "url": "https://api.github.com/users/pavanmudumba", "html_url": "https://github.com/pavanmudumba", "followers_url": "https://api.github.com/users/pavanmudu... | value:False | true | |||||||||
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```diff
# The "mode" argument is required if we want to use the current umask in filelock >= 3.10
- # In pre... | value:https://api.github.com/repos/huggingface/datasets/issues/8854/comments | value:PR_kwDODunzps8AAAABJRu_8Q | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8854", "html_url": "https://github.com/huggingface/datasets/pull/8854", "diff_url": "https://github.com/huggingface/datasets/pull/8854.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8854.patch", "merged_at": null} | value:2026-10-19T07:38:31Z | value:https://api.github.com/repos/huggingface/datasets/issues/8854/labels{/name} | value:8854 | json:{"login": "Sreekant13", "id": 60787859, "node_id": "MDQ6VXNlcjYwNzg3ODU5", "avatar_url": "https://avatars.githubusercontent.com/u/60787859?v=4", "gravatar_id": "", "url": "https://api.github.com/users/Sreekant13", "html_url": "https://github.com/Sreekant13", "followers_url": "https://api.github.com/users/Sreekant1... | value:False | true | |||||||||||
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`load_dataset("conll", ...)` keeps a leading UTF-8 BOM. Because the BOM sits at the very start of the first line, it also defeats the two line-level checks (`skip_docstart` and `comment_prefix`), which compare the beginning of a line, so the first marker/comment line is turned into a data row:... | value:https://api.github.com/repos/huggingface/datasets/issues/8853/comments | value:PR_kwDODunzps8AAAABJQbZvA | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8853", "html_url": "https://github.com/huggingface/datasets/pull/8853", "diff_url": "https://github.com/huggingface/datasets/pull/8853.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8853.patch", "merged_at": null} | value:2026-10-19T09:13:29Z | value:https://api.github.com/repos/huggingface/datasets/issues/8853/labels{/name} | value:8853 | json:{"login": "isHeSatoshi", "id": 83160620, "node_id": "MDQ6VXNlcjgzMTYwNjIw", "avatar_url": "https://avatars.githubusercontent.com/u/83160620?v=4", "gravatar_id": "", "url": "https://api.github.com/users/isHeSatoshi", "html_url": "https://github.com/isHeSatoshi", "followers_url": "https://api.github.com/users/isHeSa... | value:False | true | |||||||||||
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`load_dataset("text", ...)` keeps a leading UTF-8 BOM as part of the data:
```python
import codecs
import os
import tempfile
from datasets import load_dataset
path = os.path.join(tempfile.mkdtemp(), "corpus.txt")
with open(path, "wb") as f:
f.write(codecs.BOM_UTF8 + b"hello\nworld\n")
... | value:https://api.github.com/repos/huggingface/datasets/issues/8852/comments | value:PR_kwDODunzps8AAAABJQUfIQ | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8852", "html_url": "https://github.com/huggingface/datasets/pull/8852", "diff_url": "https://github.com/huggingface/datasets/pull/8852.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8852.patch", "merged_at": null} | value:2026-10-19T09:13:23Z | value:https://api.github.com/repos/huggingface/datasets/issues/8852/labels{/name} | value:8852 | json:{"login": "isHeSatoshi", "id": 83160620, "node_id": "MDQ6VXNlcjgzMTYwNjIw", "avatar_url": "https://avatars.githubusercontent.com/u/83160620?v=4", "gravatar_id": "", "url": "https://api.github.com/users/isHeSatoshi", "html_url": "https://github.com/isHeSatoshi", "followers_url": "https://api.github.com/users/isHeSa... | value:False | true | |||||||||||
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* `cast_column("audio", Audio(samp... | value:https://api.github.com/repos/huggingface/datasets/issues/8850/comments | value:PR_kwDODunzps8AAAABJKDDOg | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8850", "html_url": "https://github.com/huggingface/datasets/pull/8850", "diff_url": "https://github.com/huggingface/datasets/pull/8850.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8850.patch", "merged_at": null} | value:2026-10-18T13:29:49Z | value:https://api.github.com/repos/huggingface/datasets/issues/8850/labels{/name} | value:8850 | json:{"login": "sebxt", "id": 205829550, "node_id": "U_kgDODES1rg", "avatar_url": "https://avatars.githubusercontent.com/u/205829550?v=4", "gravatar_id": "", "url": "https://api.github.com/users/sebxt", "html_url": "https://github.com/sebxt", "followers_url": "https://api.github.com/users/sebxt/followers", "following_u... | value:False | true | |||||||||||
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Since #8791, `load_dataset(..., streaming=True)` decodes media in worker threads by default when the dataset is on the Hub. The threaded decoding is a `map` step created by `IterableDataset.decode(num_threads=...)`, so the examples coming out of the dataset are already decoded.
`IterableDat... | value:https://api.github.com/repos/huggingface/datasets/issues/8849/comments | value:I_kwDODunzps8AAAABYEPPYw | value:open | value:0 | value:2026-10-18T13:29:47Z | value:https://api.github.com/repos/huggingface/datasets/issues/8849/labels{/name} | value:8849 | json:{"login": "sebxt", "id": 205829550, "node_id": "U_kgDODES1rg", "avatar_url": "https://avatars.githubusercontent.com/u/205829550?v=4", "gravatar_id": "", "url": "https://api.github.com/users/sebxt", "html_url": "https://github.com/sebxt", "followers_url": "https://api.github.com/users/sebxt/followers", "following_u... | true | |||||||||||
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Six new cases cover imported collators with eager TensorFlow ... | value:https://api.github.com/repos/huggingface/datasets/issues/8847/comments | value:PR_kwDODunzps8AAAABJGyEnQ | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8847", "html_url": "https://github.com/huggingface/datasets/pull/8847", "diff_url": "https://github.com/huggingface/datasets/pull/8847.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8847.patch", "merged_at": null} | value:2026-10-18T03:30:11Z | value:https://api.github.com/repos/huggingface/datasets/issues/8847/labels{/name} | value:8847 | json:{"login": "jinchuntan", "id": 79140620, "node_id": "MDQ6VXNlcjc5MTQwNjIw", "avatar_url": "https://avatars.githubusercontent.com/u/79140620?v=4", "gravatar_id": "", "url": "https://api.github.com/users/jinchuntan", "html_url": "https://github.com/jinchuntan", "followers_url": "https://api.github.com/users/jinchunta... | value:False | true | |||||||||||
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Checked an ins... | value:https://api.github.com/repos/huggingface/datasets/issues/8846/comments | value:PR_kwDODunzps8AAAABJGx8nQ | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8846", "html_url": "https://github.com/huggingface/datasets/pull/8846", "diff_url": "https://github.com/huggingface/datasets/pull/8846.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8846.patch", "merged_at": null} | value:2026-10-18T03:29:34Z | value:https://api.github.com/repos/huggingface/datasets/issues/8846/labels{/name} | value:8846 | json:{"login": "jinchuntan", "id": 79140620, "node_id": "MDQ6VXNlcjc5MTQwNjIw", "avatar_url": "https://avatars.githubusercontent.com/u/79140620?v=4", "gravatar_id": "", "url": "https://api.github.com/users/jinchuntan", "html_url": "https://github.com/jinchuntan", "followers_url": "https://api.github.com/users/jinchunta... | value:False | true | |||||||||||
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Added 18 regression cases, including batched maps. Formatting checks: 59 passed, 12 s... | value:https://api.github.com/repos/huggingface/datasets/issues/8845/comments | value:PR_kwDODunzps8AAAABJGx1Jw | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8845", "html_url": "https://github.com/huggingface/datasets/pull/8845", "diff_url": "https://github.com/huggingface/datasets/pull/8845.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8845.patch", "merged_at": null} | value:2026-10-18T03:28:57Z | value:https://api.github.com/repos/huggingface/datasets/issues/8845/labels{/name} | value:8845 | json:{"login": "jinchuntan", "id": 79140620, "node_id": "MDQ6VXNlcjc5MTQwNjIw", "avatar_url": "https://avatars.githubusercontent.com/u/79140620?v=4", "gravatar_id": "", "url": "https://api.github.com/users/jinchuntan", "html_url": "https://github.com/jinchuntan", "followers_url": "https://api.github.com/users/jinchunta... | value:False | true | |||||||||||
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Added four cases covering repeated restores and initial checkpoints, with checks on the returned rows. The iterable suite has 655 p... | value:https://api.github.com/repos/huggingface/datasets/issues/8844/comments | value:PR_kwDODunzps8AAAABJGpeMw | value:open | value:1 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8844", "html_url": "https://github.com/huggingface/datasets/pull/8844", "diff_url": "https://github.com/huggingface/datasets/pull/8844.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8844.patch", "merged_at": null} | value:2026-10-19T17:32:35Z | value:https://api.github.com/repos/huggingface/datasets/issues/8844/labels{/name} | value:8844 | json:{"login": "jinchuntan", "id": 79140620, "node_id": "MDQ6VXNlcjc5MTQwNjIw", "avatar_url": "https://avatars.githubusercontent.com/u/79140620?v=4", "gravatar_id": "", "url": "https://api.github.com/users/jinchuntan", "html_url": "https://github.com/jinchuntan", "followers_url": "https://api.github.com/users/jinchunta... | value:False | true | |||||||||||
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Checked the updated example with upscaling and downscaling, for single examples and batches. Class la... | value:https://api.github.com/repos/huggingface/datasets/issues/8843/comments | value:PR_kwDODunzps8AAAABJGmxQg | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8843", "html_url": "https://github.com/huggingface/datasets/pull/8843", "diff_url": "https://github.com/huggingface/datasets/pull/8843.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8843.patch", "merged_at": null} | value:2026-10-18T02:49:15Z | value:https://api.github.com/repos/huggingface/datasets/issues/8843/labels{/name} | value:8843 | json:{"login": "jinchuntan", "id": 79140620, "node_id": "MDQ6VXNlcjc5MTQwNjIw", "avatar_url": "https://avatars.githubusercontent.com/u/79140620?v=4", "gravatar_id": "", "url": "https://api.github.com/users/jinchuntan", "html_url": "https://github.com/jinchuntan", "followers_url": "https://api.github.com/users/jinchunta... | value:False | true | |||||||||||
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Fixes #6819.
Tests: 302 local tests passe... | value:https://api.github.com/repos/huggingface/datasets/issues/8842/comments | value:PR_kwDODunzps8AAAABJGkDSA | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8842", "html_url": "https://github.com/huggingface/datasets/pull/8842", "diff_url": "https://github.com/huggingface/datasets/pull/8842.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8842.patch", "merged_at": null} | value:2026-10-18T02:42:13Z | value:https://api.github.com/repos/huggingface/datasets/issues/8842/labels{/name} | value:8842 | json:{"login": "jinchuntan", "id": 79140620, "node_id": "MDQ6VXNlcjc5MTQwNjIw", "avatar_url": "https://avatars.githubusercontent.com/u/79140620?v=4", "gravatar_id": "", "url": "https://api.github.com/users/jinchuntan", "html_url": "https://github.com/jinchuntan", "followers_url": "https://api.github.com/users/jinchunta... | value:False | true | |||||||||||
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Adds eight regression cases covering inferred/explicit features and regular/streaming loads, including multiple batches and ... | value:https://api.github.com/repos/huggingface/datasets/issues/8841/comments | value:PR_kwDODunzps8AAAABJGf6vQ | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8841", "html_url": "https://github.com/huggingface/datasets/pull/8841", "diff_url": "https://github.com/huggingface/datasets/pull/8841.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8841.patch", "merged_at": null} | value:2026-10-18T02:29:37Z | value:https://api.github.com/repos/huggingface/datasets/issues/8841/labels{/name} | value:8841 | json:{"login": "jinchuntan", "id": 79140620, "node_id": "MDQ6VXNlcjc5MTQwNjIw", "avatar_url": "https://avatars.githubusercontent.com/u/79140620?v=4", "gravatar_id": "", "url": "https://api.github.com/users/jinchuntan", "html_url": "https://github.com/jinchuntan", "followers_url": "https://api.github.com/users/jinchunta... | value:False | true | |||||||||||
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`Dataset.to_sql(name, con, num_proc=N)` with more than one batch fails with `table already exists` (sqlite: `(sqlite3.OperationalError) table t already exists`, or pandas' `ValueError: Table 't' already exists.`), and whether it fails depends on which worker reaches the database first.
`Sql... | value:https://api.github.com/repos/huggingface/datasets/issues/8838/comments | value:I_kwDODunzps8AAAABX-x-tg | value:open | value:0 | value:2026-10-17T23:42:10Z | value:https://api.github.com/repos/huggingface/datasets/issues/8838/labels{/name} | value:8838 | json:{"login": "mertkayacs", "id": 47145541, "node_id": "MDQ6VXNlcjQ3MTQ1NTQx", "avatar_url": "https://avatars.githubusercontent.com/u/47145541?v=4", "gravatar_id": "", "url": "https://api.github.com/users/mertkayacs", "html_url": "https://github.com/mertkayacs", "followers_url": "https://api.github.com/users/mertkayac... | true | |||||||||||
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```python
>>> ds = Dataset.from_dict({"a": [10, 20, 30, 40, 50]})... | value:https://api.github.com/repos/huggingface/datasets/issues/8837/comments | value:PR_kwDODunzps8AAAABJFqyBw | value:open | value:1 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8837", "html_url": "https://github.com/huggingface/datasets/pull/8837", "diff_url": "https://github.com/huggingface/datasets/pull/8837.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8837.patch", "merged_at": null} | value:2026-10-18T08:06:25Z | value:https://api.github.com/repos/huggingface/datasets/issues/8837/labels{/name} | value:8837 | json:{"login": "mertkayacs", "id": 47145541, "node_id": "MDQ6VXNlcjQ3MTQ1NTQx", "avatar_url": "https://avatars.githubusercontent.com/u/47145541?v=4", "gravatar_id": "", "url": "https://api.github.com/users/mertkayacs", "html_url": "https://github.com/mertkayacs", "followers_url": "https://api.github.com/users/mertkayac... | value:False | true | |||||||||||
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`Dataset.__getitem__` accepts a list, tuple, numpy array or pandas Series of booleans and reads it as integer row indices: every `True` becomes row 1 and every `False` row 0. No error is raised, and the result has the length of the mask, so it looks like a valid selection. The docstring says... | value:https://api.github.com/repos/huggingface/datasets/issues/8836/comments | value:I_kwDODunzps8AAAABX-xCiw | value:open | value:2 | value:2026-11-05T18:00:10Z | value:https://api.github.com/repos/huggingface/datasets/issues/8836/labels{/name} | value:8836 | json:{"login": "mertkayacs", "id": 47145541, "node_id": "MDQ6VXNlcjQ3MTQ1NTQx", "avatar_url": "https://avatars.githubusercontent.com/u/47145541?v=4", "gravatar_id": "", "url": "https://api.github.com/users/mertkayacs", "html_url": "https://github.com/mertkayacs", "followers_url": "https://api.github.com/users/mertkayac... | true | ||||||||||
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```
ArrowInv... | value:https://api.github.com/repos/huggingface/datasets/issues/8833/comments | value:PR_kwDODunzps8AAAABJFmT0A | value:open | value:2 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8833", "html_url": "https://github.com/huggingface/datasets/pull/8833", "diff_url": "https://github.com/huggingface/datasets/pull/8833.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8833.patch", "merged_at": null} | value:2026-10-25T13:07:30Z | value:https://api.github.com/repos/huggingface/datasets/issues/8833/labels{/name} | value:8833 | json:{"login": "mertkayacs", "id": 47145541, "node_id": "MDQ6VXNlcjQ3MTQ1NTQx", "avatar_url": "https://avatars.githubusercontent.com/u/47145541?v=4", "gravatar_id": "", "url": "https://api.github.com/users/mertkayacs", "html_url": "https://github.com/mertkayacs", "followers_url": "https://api.github.com/users/mertkayac... | value:False | true | |||||||||||
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`Dataset.to_csv(path, encoding="utf-16")` writes UTF-8. The docstring says the extra keyword arguments go to `pandas.DataFrame.to_csv`, which documents `encoding` (and `errors`), and both are accepted without complaint, but the file is always UTF-8.
The cause is in `datasets/io/csv.py`: `Cs... | value:https://api.github.com/repos/huggingface/datasets/issues/8832/comments | value:I_kwDODunzps8AAAABX-riow | value:open | value:2 | value:2026-11-10T07:19:37Z | value:https://api.github.com/repos/huggingface/datasets/issues/8832/labels{/name} | value:8832 | json:{"login": "mertkayacs", "id": 47145541, "node_id": "MDQ6VXNlcjQ3MTQ1NTQx", "avatar_url": "https://avatars.githubusercontent.com/u/47145541?v=4", "gravatar_id": "", "url": "https://api.github.com/users/mertkayacs", "html_url": "https://github.com/mertkayacs", "followers_url": "https://api.github.com/users/mertkayac... | true | ||||||||||
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`Dataset.to_csv(..., index=True)` and `Dataset.to_sql(..., index=True)` write an index column whose values restart at 0 at every batch boundary. The docstrings of both methods say "If you would like to write the index, pass `index=True` and also set a name for the index column by passing `in... | value:https://api.github.com/repos/huggingface/datasets/issues/8831/comments | value:I_kwDODunzps8AAAABX-riEw | value:open | value:0 | value:2026-10-17T23:27:11Z | value:https://api.github.com/repos/huggingface/datasets/issues/8831/labels{/name} | value:8831 | json:{"login": "mertkayacs", "id": 47145541, "node_id": "MDQ6VXNlcjQ3MTQ1NTQx", "avatar_url": "https://avatars.githubusercontent.com/u/47145541?v=4", "gravatar_id": "", "url": "https://api.github.com/users/mertkayacs", "html_url": "https://github.com/mertkayacs", "followers_url": "https://api.github.com/users/mertkayac... | true | |||||||||||
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`Dataset.from_pandas(df, features=...)` fails when the label column of the DataFrame is a pandas `Categorical` and the feature is a `ClassLabel`. pandas hands the column to Arrow as a `DictionaryArray` (`dictionary<values=large_string, indices=int8>`), and `ClassLabel.cast_storage` only know... | value:https://api.github.com/repos/huggingface/datasets/issues/8830/comments | value:I_kwDODunzps8AAAABX-rhqg | value:open | value:1 | value:2026-10-18T07:56:15Z | value:https://api.github.com/repos/huggingface/datasets/issues/8830/labels{/name} | value:8830 | json:{"login": "mertkayacs", "id": 47145541, "node_id": "MDQ6VXNlcjQ3MTQ1NTQx", "avatar_url": "https://avatars.githubusercontent.com/u/47145541?v=4", "gravatar_id": "", "url": "https://api.github.com/users/mertkayacs", "html_url": "https://github.com/mertkayacs", "followers_url": "https://api.github.com/users/mertkayac... | true | |||||||||||
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Clarifies that checksum recording has been disabled by default since Datasets 4.8.5, and that `verification_mode="all_checks"` does not enable it. The integrity guide now explains when checksum comparison runs, shows how to pin a Hub dataset commit for reproducibility, and distinguishes that from ver... | value:https://api.github.com/repos/huggingface/datasets/issues/8829/comments | value:PR_kwDODunzps8AAAABJCneLw | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8829", "html_url": "https://github.com/huggingface/datasets/pull/8829", "diff_url": "https://github.com/huggingface/datasets/pull/8829.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8829.patch", "merged_at": null} | value:2026-10-17T16:07:16Z | value:https://api.github.com/repos/huggingface/datasets/issues/8829/labels{/name} | value:8829 | json:{"login": "Nikhila-Dhevi-R", "id": 178061112, "node_id": "U_kgDOCpz_OA", "avatar_url": "https://avatars.githubusercontent.com/u/178061112?v=4", "gravatar_id": "", "url": "https://api.github.com/users/Nikhila-Dhevi-R", "html_url": "https://github.com/Nikhila-Dhevi-R", "followers_url": "https://api.github.com/users/... | value:False | true | |||||||||||
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Supersedes [#8141](https://github.com/huggingface/datasets/pull/8141), which @kasperg3 [agreed to hand over](https://github.com/huggingface/datasets/pull/8141#issuecomment-6208799638). The first commit is kasperg3's, minus a `to_dict` line that [a later commit](https://github.com/huggingface/datasets... | value:https://api.github.com/repos/huggingface/datasets/issues/8828/comments | value:PR_kwDODunzps8AAAABI67Uqw | value:closed | value:2 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8828", "html_url": "https://github.com/huggingface/datasets/pull/8828", "diff_url": "https://github.com/huggingface/datasets/pull/8828.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8828.patch", "merged_at": "2026-11-09T17:28:28Z"} | value:2026-11-10T02:58:09Z | value:https://api.github.com/repos/huggingface/datasets/issues/8828/labels{/name} | value:8828 | json:{"login": "hzmsh", "id": 35788891, "node_id": "MDQ6VXNlcjM1Nzg4ODkx", "avatar_url": "https://avatars.githubusercontent.com/u/35788891?v=4", "gravatar_id": "", "url": "https://api.github.com/users/hzmsh", "html_url": "https://github.com/hzmsh", "followers_url": "https://api.github.com/users/hzmsh/followers", "follo... | value:False | true | |||||||||
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`IterableDataset.iter(...).close()` can leave nested generators alive while the caller keeps the closed iterator. On Python 3.12 this leaves shuffled streaming sources and their files open until that iterator is deleted. Return an iterator that closes and releases its owned batch generator, so ... | value:https://api.github.com/repos/huggingface/datasets/issues/8827/comments | value:PR_kwDODunzps8AAAABI3wpGA | value:open | value:4 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8827", "html_url": "https://github.com/huggingface/datasets/pull/8827", "diff_url": "https://github.com/huggingface/datasets/pull/8827.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8827.patch", "merged_at": null} | value:2026-10-21T22:37:55Z | value:https://api.github.com/repos/huggingface/datasets/issues/8827/labels{/name} | value:8827 | json:{"login": "jackboyla", "id": 70636379, "node_id": "MDQ6VXNlcjcwNjM2Mzc5", "avatar_url": "https://avatars.githubusercontent.com/u/70636379?v=4", "gravatar_id": "", "url": "https://api.github.com/users/jackboyla", "html_url": "https://github.com/jackboyla", "followers_url": "https://api.github.com/users/jackboyla/fo... | value:True | true | |||||||||||
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Fixed the duplicated article 'a a Storage Bucket' in a docstring in load.py.
## Why
A small, objectively-verifiable improvement (typo) found during a
daily open-source maintenance pass (2026-10-16).
## How verified
Found with a grep for repeated words. Checked the diff: 1 line changed in 1 file. Committ... | value:https://api.github.com/repos/huggingface/datasets/issues/8824/comments | value:PR_kwDODunzps8AAAABI0a4pg | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8824", "html_url": "https://github.com/huggingface/datasets/pull/8824", "diff_url": "https://github.com/huggingface/datasets/pull/8824.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8824.patch", "merged_at": null} | value:2026-10-16T10:10:42Z | value:https://api.github.com/repos/huggingface/datasets/issues/8824/labels{/name} | value:8824 | json:{"login": "aarushkandukoori", "id": 66923736, "node_id": "MDQ6VXNlcjY2OTIzNzM2", "avatar_url": "https://avatars.githubusercontent.com/u/66923736?v=4", "gravatar_id": "", "url": "https://api.github.com/users/aarushkandukoori", "html_url": "https://github.com/aarushkandukoori", "followers_url": "https://api.github.c... | value:False | true | |||||||||||
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When the Hub is briefly unavailable (429, 5xx or a timeout), streaming can raise `FileNotFoundError` for a file that exists, and a long training run stops.
```python
from unittest.mock import patch
from huggingface_hub import HfFileSystem
from huggingface_hub.errors import HfHubHTTPError
f... | value:https://api.github.com/repos/huggingface/datasets/issues/8822/comments | value:PR_kwDODunzps8AAAABItwR3g | value:open | value:3 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8822", "html_url": "https://github.com/huggingface/datasets/pull/8822", "diff_url": "https://github.com/huggingface/datasets/pull/8822.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8822.patch", "merged_at": null} | value:2026-10-19T18:11:41Z | value:https://api.github.com/repos/huggingface/datasets/issues/8822/labels{/name} | value:8822 | json:{"login": "hzmsh", "id": 35788891, "node_id": "MDQ6VXNlcjM1Nzg4ODkx", "avatar_url": "https://avatars.githubusercontent.com/u/35788891?v=4", "gravatar_id": "", "url": "https://api.github.com/users/hzmsh", "html_url": "https://github.com/hzmsh", "followers_url": "https://api.github.com/users/hzmsh/followers", "follo... | value:False | true | |||||||||||
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Stop both iteration paths immediately after yieldin... | value:https://api.github.com/repos/huggingface/datasets/issues/8821/comments | value:PR_kwDODunzps8AAAABIp1xqQ | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8821", "html_url": "https://github.com/huggingface/datasets/pull/8821", "diff_url": "https://github.com/huggingface/datasets/pull/8821.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8821.patch", "merged_at": null} | value:2026-10-15T15:28:45Z | value:https://api.github.com/repos/huggingface/datasets/issues/8821/labels{/name} | value:8821 | json:{"login": "salma2vec", "id": 65449934, "node_id": "MDQ6VXNlcjY1NDQ5OTM0", "avatar_url": "https://avatars.githubusercontent.com/u/65449934?v=4", "gravatar_id": "", "url": "https://api.github.com/users/salma2vec", "html_url": "https://github.com/salma2vec", "followers_url": "https://api.github.com/users/salma2vec/fo... | value:False | true | |||||||||||
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Restore the saved schema... | value:https://api.github.com/repos/huggingface/datasets/issues/8820/comments | value:PR_kwDODunzps8AAAABIpyP0w | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8820", "html_url": "https://github.com/huggingface/datasets/pull/8820", "diff_url": "https://github.com/huggingface/datasets/pull/8820.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8820.patch", "merged_at": null} | value:2026-10-15T15:24:27Z | value:https://api.github.com/repos/huggingface/datasets/issues/8820/labels{/name} | value:8820 | json:{"login": "salma2vec", "id": 65449934, "node_id": "MDQ6VXNlcjY1NDQ5OTM0", "avatar_url": "https://avatars.githubusercontent.com/u/65449934?v=4", "gravatar_id": "", "url": "https://api.github.com/users/salma2vec", "html_url": "https://github.com/salma2vec", "followers_url": "https://api.github.com/users/salma2vec/fo... | value:False | true | |||||||||||
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Apply the existing... | value:https://api.github.com/repos/huggingface/datasets/issues/8819/comments | value:PR_kwDODunzps8AAAABIpwgmA | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8819", "html_url": "https://github.com/huggingface/datasets/pull/8819", "diff_url": "https://github.com/huggingface/datasets/pull/8819.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8819.patch", "merged_at": null} | value:2026-10-15T15:22:13Z | value:https://api.github.com/repos/huggingface/datasets/issues/8819/labels{/name} | value:8819 | json:{"login": "salma2vec", "id": 65449934, "node_id": "MDQ6VXNlcjY1NDQ5OTM0", "avatar_url": "https://avatars.githubusercontent.com/u/65449934?v=4", "gravatar_id": "", "url": "https://api.github.com/users/salma2vec", "html_url": "https://github.com/salma2vec", "followers_url": "https://api.github.com/users/salma2vec/fo... | value:False | true | |||||||||||
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Keep the... | value:https://api.github.com/repos/huggingface/datasets/issues/8818/comments | value:PR_kwDODunzps8AAAABIpwdyQ | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8818", "html_url": "https://github.com/huggingface/datasets/pull/8818", "diff_url": "https://github.com/huggingface/datasets/pull/8818.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8818.patch", "merged_at": null} | value:2026-10-15T15:22:10Z | value:https://api.github.com/repos/huggingface/datasets/issues/8818/labels{/name} | value:8818 | json:{"login": "salma2vec", "id": 65449934, "node_id": "MDQ6VXNlcjY1NDQ5OTM0", "avatar_url": "https://avatars.githubusercontent.com/u/65449934?v=4", "gravatar_id": "", "url": "https://api.github.com/users/salma2vec", "html_url": "https://github.com/salma2vec", "followers_url": "https://api.github.com/users/salma2vec/fo... | value:False | true | |||||||||||
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Project `SelectC... | value:https://api.github.com/repos/huggingface/datasets/issues/8816/comments | value:PR_kwDODunzps8AAAABIpwXZw | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8816", "html_url": "https://github.com/huggingface/datasets/pull/8816", "diff_url": "https://github.com/huggingface/datasets/pull/8816.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8816.patch", "merged_at": null} | value:2026-10-15T15:22:02Z | value:https://api.github.com/repos/huggingface/datasets/issues/8816/labels{/name} | value:8816 | json:{"login": "salma2vec", "id": 65449934, "node_id": "MDQ6VXNlcjY1NDQ5OTM0", "avatar_url": "https://avatars.githubusercontent.com/u/65449934?v=4", "gravatar_id": "", "url": "https://api.github.com/users/salma2vec", "html_url": "https://github.com/salma2vec", "followers_url": "https://api.github.com/users/salma2vec/fo... | value:False | true | |||||||||||
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Recognize NumPy integers in the nested-column scalar path as well. Regression tests cov... | value:https://api.github.com/repos/huggingface/datasets/issues/8815/comments | value:PR_kwDODunzps8AAAABIpwOLA | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8815", "html_url": "https://github.com/huggingface/datasets/pull/8815", "diff_url": "https://github.com/huggingface/datasets/pull/8815.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8815.patch", "merged_at": null} | value:2026-10-15T15:21:51Z | value:https://api.github.com/repos/huggingface/datasets/issues/8815/labels{/name} | value:8815 | json:{"login": "salma2vec", "id": 65449934, "node_id": "MDQ6VXNlcjY1NDQ5OTM0", "avatar_url": "https://avatars.githubusercontent.com/u/65449934?v=4", "gravatar_id": "", "url": "https://api.github.com/users/salma2vec", "html_url": "https://github.com/salma2vec", "followers_url": "https://api.github.com/users/salma2vec/fo... | value:False | true | |||||||||||
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Serialize one empty batch so CSV retains the requested ... | value:https://api.github.com/repos/huggingface/datasets/issues/8811/comments | value:PR_kwDODunzps8AAAABIpg0Hg | value:closed | value:2 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8811", "html_url": "https://github.com/huggingface/datasets/pull/8811", "diff_url": "https://github.com/huggingface/datasets/pull/8811.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8811.patch", "merged_at": "2026-11-09T18:12:54Z"} | value:2026-11-09T18:12:54Z | value:https://api.github.com/repos/huggingface/datasets/issues/8811/labels{/name} | value:8811 | json:{"login": "salma2vec", "id": 65449934, "node_id": "MDQ6VXNlcjY1NDQ5OTM0", "avatar_url": "https://avatars.githubusercontent.com/u/65449934?v=4", "gravatar_id": "", "url": "https://api.github.com/users/salma2vec", "html_url": "https://github.com/salma2vec", "followers_url": "https://api.github.com/users/salma2vec/fo... | value:False | true | |||||||||
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### Problem
`DatasetBuilder._check_legacy_cache2` patches `Pickler._legacy_no_dict_keys_sorting = True` to recompute the `config_id` that datasets 2.15 wrote, since 2.15 hashed dicts without sorting their keys. Since 4.4.0 the flag does nothing, so the lookup computes the current (sorted) hash and m... | value:https://api.github.com/repos/huggingface/datasets/issues/8810/comments | value:PR_kwDODunzps8AAAABIkOjjQ | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8810", "html_url": "https://github.com/huggingface/datasets/pull/8810", "diff_url": "https://github.com/huggingface/datasets/pull/8810.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8810.patch", "merged_at": null} | value:2026-10-15T09:10:37Z | value:https://api.github.com/repos/huggingface/datasets/issues/8810/labels{/name} | value:8810 | json:{"login": "AnthonyOlakangil", "id": 151782021, "node_id": "U_kgDOCQwChQ", "avatar_url": "https://avatars.githubusercontent.com/u/151782021?v=4", "gravatar_id": "", "url": "https://api.github.com/users/AnthonyOlakangil", "html_url": "https://github.com/AnthonyOlakangil", "followers_url": "https://api.github.com/use... | value:False | true | |||||||||||
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When loading a CSV dataset directory, `column_names` can be ignored and the first data row used as the header. It is also ignored when overriding column names from README configuration. Loading with the explicit `"csv"` builder already works.
Normalize incoming `column_names` to `names` before the ... | value:https://api.github.com/repos/huggingface/datasets/issues/8809/comments | value:PR_kwDODunzps8AAAABIjY6oA | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8809", "html_url": "https://github.com/huggingface/datasets/pull/8809", "diff_url": "https://github.com/huggingface/datasets/pull/8809.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8809.patch", "merged_at": null} | value:2026-10-15T05:59:34Z | value:https://api.github.com/repos/huggingface/datasets/issues/8809/labels{/name} | value:8809 | json:{"login": "ska2704", "id": 162553727, "node_id": "U_kgDOCbBffw", "avatar_url": "https://avatars.githubusercontent.com/u/162553727?v=4", "gravatar_id": "", "url": "https://api.github.com/users/ska2704", "html_url": "https://github.com/ska2704", "followers_url": "https://api.github.com/users/ska2704/followers", "fol... | value:False | true | |||||||||||
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The workaround for apache/arrow#45214 in the Parquet builder (`del parquet_fragment` + `gc.collect()` when a stream stops before the fragment is fully read) was gated on `datasets.config.PYARROW_VERSION <= 24.0.0`. The issue reports that the fatal `PyGILState_Release` at interpreter exit still happen... | value:https://api.github.com/repos/huggingface/datasets/issues/8808/comments | value:PR_kwDODunzps8AAAABIhqitQ | value:closed | value:1 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8808", "html_url": "https://github.com/huggingface/datasets/pull/8808", "diff_url": "https://github.com/huggingface/datasets/pull/8808.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8808.patch", "merged_at": null} | value:2026-10-15T02:09:51Z | value:https://api.github.com/repos/huggingface/datasets/issues/8808/labels{/name} | value:8808 | json:{"login": "jipeng6036-del", "id": 241105014, "node_id": "U_kgDODl74dg", "avatar_url": "https://avatars.githubusercontent.com/u/241105014?v=4", "gravatar_id": "", "url": "https://api.github.com/users/jipeng6036-del", "html_url": "https://github.com/jipeng6036-del", "followers_url": "https://api.github.com/users/jip... | value:False | true | |||||||||
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Bug explanation: `SplitDict.copy()` crashes with `AttributeError` because `from_split_dict` calls `.get()` on the `SplitInfo` dataclass instances passed from `to_split_dict()`, which have no `.get()` method.
What changed: one line in `src/datasets/splits.py` inside `from_split_dict`. Dict inputs be... | value:https://api.github.com/repos/huggingface/datasets/issues/8805/comments | value:PR_kwDODunzps8AAAABIdJTMQ | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8805", "html_url": "https://github.com/huggingface/datasets/pull/8805", "diff_url": "https://github.com/huggingface/datasets/pull/8805.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8805.patch", "merged_at": null} | value:2026-10-14T18:14:59Z | value:https://api.github.com/repos/huggingface/datasets/issues/8805/labels{/name} | value:8805 | json:{"login": "Sailaja-ASB", "id": 83068760, "node_id": "MDQ6VXNlcjgzMDY4NzYw", "avatar_url": "https://avatars.githubusercontent.com/u/83068760?v=4", "gravatar_id": "", "url": "https://api.github.com/users/Sailaja-ASB", "html_url": "https://github.com/Sailaja-ASB", "followers_url": "https://api.github.com/users/Sailaj... | value:False | true | |||||||||||
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The cache guide currently recommends `force_redownload` to get data without previous `map` transforms. Reloading with `load_dataset` already returns the original prepared dataset.
```diff
- Re-download files to get the original data without transforms.
+ Use download_mode for source downloads and dat... | value:https://api.github.com/repos/huggingface/datasets/issues/8804/comments | value:PR_kwDODunzps8AAAABIcW6JA | value:closed | value:6 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8804", "html_url": "https://github.com/huggingface/datasets/pull/8804", "diff_url": "https://github.com/huggingface/datasets/pull/8804.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8804.patch", "merged_at": "2026-11-05T11:42:38Z"} | value:2026-11-05T11:42:38Z | value:https://api.github.com/repos/huggingface/datasets/issues/8804/labels{/name} | value:8804 | json:{"login": "original4422", "id": 97350516, "node_id": "U_kgDOBc1zdA", "avatar_url": "https://avatars.githubusercontent.com/u/97350516?v=4", "gravatar_id": "", "url": "https://api.github.com/users/original4422", "html_url": "https://github.com/original4422", "followers_url": "https://api.github.com/users/original442... | value:False | true | |||||||||
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```python
ds = Dataset.from_dict({"x": [1, 2]}, split="train")
ds.repeat(3).split # None
ds.repeat(0).split # train
```
`repeat` concatenates `[self] * num_times` without passing the ... | value:https://api.github.com/repos/huggingface/datasets/issues/8803/comments | value:PR_kwDODunzps8AAAABIVFzKw | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8803", "html_url": "https://github.com/huggingface/datasets/pull/8803", "diff_url": "https://github.com/huggingface/datasets/pull/8803.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8803.patch", "merged_at": null} | value:2026-10-14T06:34:27Z | value:https://api.github.com/repos/huggingface/datasets/issues/8803/labels{/name} | value:8803 | json:{"login": "kaanisthatyou", "id": 121812333, "node_id": "U_kgDOB0K1bQ", "avatar_url": "https://avatars.githubusercontent.com/u/121812333?v=4", "gravatar_id": "", "url": "https://api.github.com/users/kaanisthatyou", "html_url": "https://github.com/kaanisthatyou", "followers_url": "https://api.github.com/users/kaanis... | value:False | true | |||||||||||
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but its failure warnings and caching documentation say objects can be
serializable with "pickle or dill". This incorrectly suggests that successful
pickle serialization is sufficient when dill serialization fails.
This change makes the t... | value:https://api.github.com/repos/huggingface/datasets/issues/8802/comments | value:PR_kwDODunzps8AAAABIUbUkg | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8802", "html_url": "https://github.com/huggingface/datasets/pull/8802", "diff_url": "https://github.com/huggingface/datasets/pull/8802.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8802.patch", "merged_at": null} | value:2026-10-14T05:09:07Z | value:https://api.github.com/repos/huggingface/datasets/issues/8802/labels{/name} | value:8802 | json:{"login": "neilmorse", "id": 101439701, "node_id": "U_kgDOBgvY1Q", "avatar_url": "https://avatars.githubusercontent.com/u/101439701?v=4", "gravatar_id": "", "url": "https://api.github.com/users/neilmorse", "html_url": "https://github.com/neilmorse", "followers_url": "https://api.github.com/users/neilmorse/follower... | value:False | true | |||||||||||
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With `num_proc > 1`, `map` concatenates the processed shards via `_concatenate_map_style_datasets(all_transformed_shards)` without passing an info or split. The split is therefore always `None`, and `DatasetInfo.from_merge` drops `config_name`/`dataset_name` as soon as the shard infos differ, e.g. w... | value:https://api.github.com/repos/huggingface/datasets/issues/8801/comments | value:PR_kwDODunzps8AAAABIUXGcA | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8801", "html_url": "https://github.com/huggingface/datasets/pull/8801", "diff_url": "https://github.com/huggingface/datasets/pull/8801.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8801.patch", "merged_at": null} | value:2026-10-14T04:59:43Z | value:https://api.github.com/repos/huggingface/datasets/issues/8801/labels{/name} | value:8801 | json:{"login": "kaanisthatyou", "id": 121812333, "node_id": "U_kgDOB0K1bQ", "avatar_url": "https://avatars.githubusercontent.com/u/121812333?v=4", "gravatar_id": "", "url": "https://api.github.com/users/kaanisthatyou", "html_url": "https://github.com/kaanisthatyou", "followers_url": "https://api.github.com/users/kaanis... | value:False | true | |||||||||||
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If you split iterable datasets with `split_dataset_by_node` and then concatenate them, every rank gets all the data instead of its own part.
The cause: `_concatenate_iterable_datasets` doesn't pass the split (`distributed=`) to the dataset it returns. This PR fixes it the same way `interleave_da... | value:https://api.github.com/repos/huggingface/datasets/issues/8800/comments | value:PR_kwDODunzps8AAAABIUMBiQ | value:closed | value:1 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8800", "html_url": "https://github.com/huggingface/datasets/pull/8800", "diff_url": "https://github.com/huggingface/datasets/pull/8800.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8800.patch", "merged_at": "2026-10-21T14:55:08Z"} | value:2026-10-21T15:02:17Z | value:https://api.github.com/repos/huggingface/datasets/issues/8800/labels{/name} | value:8800 | json:{"login": "hzmsh", "id": 35788891, "node_id": "MDQ6VXNlcjM1Nzg4ODkx", "avatar_url": "https://avatars.githubusercontent.com/u/35788891?v=4", "gravatar_id": "", "url": "https://api.github.com/users/hzmsh", "html_url": "https://github.com/hzmsh", "followers_url": "https://api.github.com/users/hzmsh/followers", "follo... | value:False | true | |||||||||
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If you call `split_dataset_by_node` on iterable datasets and then concatenate them with `concatenate_datasets`, the result is no longer split: every rank iterates over the full data of all inputs.
There is no error. In distributed training, each rank silently trains on the same data, so... | value:https://api.github.com/repos/huggingface/datasets/issues/8799/comments | value:I_kwDODunzps8AAAABXDXLxg | value:closed | value:1 | value:2026-10-21T14:55:09Z | value:https://api.github.com/repos/huggingface/datasets/issues/8799/labels{/name} | value:8799 | json:{"login": "hzmsh", "id": 35788891, "node_id": "MDQ6VXNlcjM1Nzg4ODkx", "avatar_url": "https://avatars.githubusercontent.com/u/35788891?v=4", "gravatar_id": "", "url": "https://api.github.com/users/hzmsh", "html_url": "https://github.com/hzmsh", "followers_url": "https://api.github.com/users/hzmsh/followers", "follo... | true | |||||||
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## What does this PR do?
The single-file extractors (`GzipExtractor`, `XzExtractor`, `ZstdExtractor`, `Bzip2Extractor`) streamed decompression **directly to the final cache path**, while `ExtractManager._do_extract` only checks for the file's existence to skip re-extraction. A process killed mid-ext... | value:https://api.github.com/repos/huggingface/datasets/issues/8798/comments | value:PR_kwDODunzps8AAAABITZUzQ | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8798", "html_url": "https://github.com/huggingface/datasets/pull/8798", "diff_url": "https://github.com/huggingface/datasets/pull/8798.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8798.patch", "merged_at": null} | value:2026-10-14T02:40:05Z | value:https://api.github.com/repos/huggingface/datasets/issues/8798/labels{/name} | value:8798 | json:{"login": "Virtuoso461", "id": 69096688, "node_id": "MDQ6VXNlcjY5MDk2Njg4", "avatar_url": "https://avatars.githubusercontent.com/u/69096688?v=4", "gravatar_id": "", "url": "https://api.github.com/users/Virtuoso461", "html_url": "https://github.com/Virtuoso461", "followers_url": "https://api.github.com/users/Virtuo... | value:False | true | |||||||||||
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The test plants a symlink to another directory at the output path, extracts a tar archive, and checks that the output path is... | value:https://api.github.com/repos/huggingface/datasets/issues/8797/comments | value:PR_kwDODunzps8AAAABIRMk-w | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8797", "html_url": "https://github.com/huggingface/datasets/pull/8797", "diff_url": "https://github.com/huggingface/datasets/pull/8797.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8797.patch", "merged_at": null} | value:2026-10-13T21:44:01Z | value:https://api.github.com/repos/huggingface/datasets/issues/8797/labels{/name} | value:8797 | json:{"login": "behroozazarkhalili", "id": 80390531, "node_id": "MDQ6VXNlcjgwMzkwNTMx", "avatar_url": "https://avatars.githubusercontent.com/u/80390531?v=4", "gravatar_id": "", "url": "https://api.github.com/users/behroozazarkhalili", "html_url": "https://github.com/behroozazarkhalili", "followers_url": "https://api.gi... | value:False | true | |||||||||||
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```python
ds = Dataset.from_dict({"x": [0.5, -1.0, 2.0]}, features=Features({"x": Value("float16")}))
ds.sort("x") # ArrowNotImplementedError: halffloat
```
Arrow has no sort kernel for half floats, on pyarrow 24 an... | value:https://api.github.com/repos/huggingface/datasets/issues/8796/comments | value:PR_kwDODunzps8AAAABIQ_PdA | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8796", "html_url": "https://github.com/huggingface/datasets/pull/8796", "diff_url": "https://github.com/huggingface/datasets/pull/8796.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8796.patch", "merged_at": null} | value:2026-10-13T21:22:41Z | value:https://api.github.com/repos/huggingface/datasets/issues/8796/labels{/name} | value:8796 | json:{"login": "behroozazarkhalili", "id": 80390531, "node_id": "MDQ6VXNlcjgwMzkwNTMx", "avatar_url": "https://avatars.githubusercontent.com/u/80390531?v=4", "gravatar_id": "", "url": "https://api.github.com/users/behroozazarkhalili", "html_url": "https://github.com/behroozazarkhalili", "followers_url": "https://api.gi... | value:False | true | |||||||||||
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```python
ds = Dataset.from_dict({"i": list(range(2000))})
ds.push_to_hub("user/repo", num_shards=2, num_proc=4) # uploads 1000 of the 2000 rows, no error
```
With `num_shards=3, num_proc=4` it uploads... | value:https://api.github.com/repos/huggingface/datasets/issues/8795/comments | value:PR_kwDODunzps8AAAABIQ_KNw | value:closed | value:1 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8795", "html_url": "https://github.com/huggingface/datasets/pull/8795", "diff_url": "https://github.com/huggingface/datasets/pull/8795.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8795.patch", "merged_at": "2026-10-19T18:01:59Z"} | value:2026-10-19T18:01:59Z | value:https://api.github.com/repos/huggingface/datasets/issues/8795/labels{/name} | value:8795 | json:{"login": "behroozazarkhalili", "id": 80390531, "node_id": "MDQ6VXNlcjgwMzkwNTMx", "avatar_url": "https://avatars.githubusercontent.com/u/80390531?v=4", "gravatar_id": "", "url": "https://api.github.com/users/behroozazarkhalili", "html_url": "https://github.com/behroozazarkhalili", "followers_url": "https://api.gi... | value:False | true | |||||||||
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**Bug:** When `load_dataset("json")` infers a `Json` column (a column mixing objects and strings, with no explicit `features` passed), any plain string in that column that happens to be valid JSON (e.g. `"123"`, `"null"`, `"true"`) was decoded to another type on load: `123`, `None`, `True`. Only str... | value:https://api.github.com/repos/huggingface/datasets/issues/8794/comments | value:PR_kwDODunzps8AAAABIQ3rFg | value:open | value:1 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8794", "html_url": "https://github.com/huggingface/datasets/pull/8794", "diff_url": "https://github.com/huggingface/datasets/pull/8794.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8794.patch", "merged_at": null} | value:2026-10-20T15:55:21Z | value:https://api.github.com/repos/huggingface/datasets/issues/8794/labels{/name} | value:8794 | json:{"login": "Sailaja-ASB", "id": 83068760, "node_id": "MDQ6VXNlcjgzMDY4NzYw", "avatar_url": "https://avatars.githubusercontent.com/u/83068760?v=4", "gravatar_id": "", "url": "https://api.github.com/users/Sailaja-ASB", "html_url": "https://github.com/Sailaja-ASB", "followers_url": "https://api.github.com/users/Sailaj... | value:False | true | |||||||||||
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When streaming Parquet datasets from the Hub and stopping iteration early (normal for streaming), the process aborts during interpreter shutdown:
```
Fatal Python error: PyGILState_Release: thread state 0x7fca9c0036d0 must be current when releasing
Python runtime state: finalizing (tstate=0... | value:https://api.github.com/repos/huggingface/datasets/issues/8793/comments | value:I_kwDODunzps8AAAABW-6kVg | value:open | value:1 | value:2026-10-15T02:05:44Z | value:https://api.github.com/repos/huggingface/datasets/issues/8793/labels{/name} | value:8793 | json:{"login": "javi22020", "id": 90896750, "node_id": "MDQ6VXNlcjkwODk2NzUw", "avatar_url": "https://avatars.githubusercontent.com/u/90896750?v=4", "gravatar_id": "", "url": "https://api.github.com/users/javi22020", "html_url": "https://github.com/javi22020", "followers_url": "https://api.github.com/users/javi22020/fo... | true | ||||||||||
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Addresses #5380, following [the maintainer’s suggested approach](https://github.c... | value:https://api.github.com/repos/huggingface/datasets/issues/8792/comments | value:PR_kwDODunzps8AAAABIQSJmw | value:open | value:3 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8792", "html_url": "https://github.com/huggingface/datasets/pull/8792", "diff_url": "https://github.com/huggingface/datasets/pull/8792.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8792.patch", "merged_at": null} | value:2026-10-24T04:30:16Z | value:https://api.github.com/repos/huggingface/datasets/issues/8792/labels{/name} | value:8792 | json:{"login": "cwklurks", "id": 147788030, "node_id": "U_kgDOCM8Q_g", "avatar_url": "https://avatars.githubusercontent.com/u/147788030?v=4", "gravatar_id": "", "url": "https://api.github.com/users/cwklurks", "html_url": "https://github.com/cwklurks", "followers_url": "https://api.github.com/users/cwklurks/followers", ... | value:False | true | |||||||||||
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only mesh datasets have a lower multithreading since they load the full files in memory, to avoid OOMs | value:https://api.github.com/repos/huggingface/datasets/issues/8791/comments | value:PR_kwDODunzps8AAAABINTSRw | value:closed | value:1 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8791", "html_url": "https://github.com/huggingface/datasets/pull/8791", "diff_url": "https://github.com/huggingface/datasets/pull/8791.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8791.patch", "merged_at": "2026-10-15T15:31:58Z"} | value:2026-10-15T15:32:01Z | value:https://api.github.com/repos/huggingface/datasets/issues/8791/labels{/name} | value:8791 | json:{"login": "lhoestq", "id": 42851186, "node_id": "MDQ6VXNlcjQyODUxMTg2", "avatar_url": "https://avatars.githubusercontent.com/u/42851186?v=4", "gravatar_id": "", "url": "https://api.github.com/users/lhoestq", "html_url": "https://github.com/lhoestq", "followers_url": "https://api.github.com/users/lhoestq/followers"... | value:False | true | |||||||||
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Fix Arrow fingerprinting/serialization failing with `PicklingError: Can't pickle <class 'MonthDayNano'>` on the declared Python 3.11 / dill 0.4.1 / PyArrow 26.0.0 dependency combination. A two-row `Dataset.from_dict` fails during fingerprint creation, and the existing chunk-independent Arrow-table has... | value:https://api.github.com/repos/huggingface/datasets/issues/8790/comments | value:PR_kwDODunzps8AAAABIGK-rA | value:open | value:1 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8790", "html_url": "https://github.com/huggingface/datasets/pull/8790", "diff_url": "https://github.com/huggingface/datasets/pull/8790.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8790.patch", "merged_at": null} | value:2026-10-16T14:33:24Z | value:https://api.github.com/repos/huggingface/datasets/issues/8790/labels{/name} | value:8790 | json:{"login": "AaravMehta-07", "id": 211792885, "node_id": "U_kgDODJ-z9Q", "avatar_url": "https://avatars.githubusercontent.com/u/211792885?v=4", "gravatar_id": "", "url": "https://api.github.com/users/AaravMehta-07", "html_url": "https://github.com/AaravMehta-07", "followers_url": "https://api.github.com/users/AaravM... | value:False | true | |||||||||||
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If I push a dataset to the Hub, rename a column, and push it again to the same repo, `load_dataset` fails with a `CastError`. The parquet file has the new column name, but the README metadata still lists the old one.
It only happens when the dataset has a single split. With multiple splits,... | value:https://api.github.com/repos/huggingface/datasets/issues/8789/comments | value:I_kwDODunzps8AAAABWsHNHA | value:open | value:1 | value:2026-10-12T17:19:15Z | value:https://api.github.com/repos/huggingface/datasets/issues/8789/labels{/name} | value:8789 | json:{"login": "belambert", "id": 641648, "node_id": "MDQ6VXNlcjY0MTY0OA==", "avatar_url": "https://avatars.githubusercontent.com/u/641648?v=4", "gravatar_id": "", "url": "https://api.github.com/users/belambert", "html_url": "https://github.com/belambert", "followers_url": "https://api.github.com/users/belambert/follow... | true | |||||||||||
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`_get_updated_dataset_card()` updates the splits and sizes in the existing `dataset_info`, but never the features. So re-pushing every split of a dataset with different columns (e.g. after renaming a column) left the card declaring the old schema. `load_dataset` then fails wit... | value:https://api.github.com/repos/huggingface/datasets/issues/8788/comments | value:PR_kwDODunzps8AAAABIAm1Ig | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8788", "html_url": "https://github.com/huggingface/datasets/pull/8788", "diff_url": "https://github.com/huggingface/datasets/pull/8788.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8788.patch", "merged_at": null} | value:2026-10-12T17:17:31Z | value:https://api.github.com/repos/huggingface/datasets/issues/8788/labels{/name} | value:8788 | json:{"login": "belambert", "id": 641648, "node_id": "MDQ6VXNlcjY0MTY0OA==", "avatar_url": "https://avatars.githubusercontent.com/u/641648?v=4", "gravatar_id": "", "url": "https://api.github.com/users/belambert", "html_url": "https://github.com/belambert", "followers_url": "https://api.github.com/users/belambert/follow... | value:False | true | |||||||||||
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```python
from datasets import IterableDat... | value:https://api.github.com/repos/huggingface/datasets/issues/8787/comments | value:PR_kwDODunzps8AAAABH_4bKw | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8787", "html_url": "https://github.com/huggingface/datasets/pull/8787", "diff_url": "https://github.com/huggingface/datasets/pull/8787.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8787.patch", "merged_at": null} | value:2026-10-12T15:44:01Z | value:https://api.github.com/repos/huggingface/datasets/issues/8787/labels{/name} | value:8787 | json:{"login": "Vaishnavi220506", "id": 183067453, "node_id": "U_kgDOCuljPQ", "avatar_url": "https://avatars.githubusercontent.com/u/183067453?v=4", "gravatar_id": "", "url": "https://api.github.com/users/Vaishnavi220506", "html_url": "https://github.com/Vaishnavi220506", "followers_url": "https://api.github.com/users/... | value:False | true | |||||||||||
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json:{"url": "https://api.github.com/repos/huggingface/datasets/issues/8784/reactions", "total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} | json:[] | value:https://github.com/huggingface/datasets/issues/8784 | json:[] | value:https://api.github.com/repos/huggingface/datasets/issues/8784/timeline | json:[] | value:5799783981 | value:https://api.github.com/repos/huggingface/datasets | value:https://api.github.com/repos/huggingface/datasets/issues/8784 | value:CSV builder never closes the xopen file handle passed to pandas.read_csv (streaming and non-streaming) | json:{"blocked_by": 0, "total_blocked_by": 0, "blocking": 0, "total_blocking": 0} | value:2026-10-11T09:24:17Z | value:completed | json:{"total": 0, "completed": 0, "percent_completed": 0} | value:CONTRIBUTOR | json:{"login": "lhoestq", "id": 42851186, "node_id": "MDQ6VXNlcjQyODUxMTg2", "avatar_url": "https://avatars.githubusercontent.com/u/42851186?v=4", "gravatar_id": "", "url": "https://api.github.com/users/lhoestq", "html_url": "https://github.com/lhoestq", "followers_url": "https://api.github.com/users/lhoestq/followers"... | value:https://api.github.com/repos/huggingface/datasets/issues/8784/events | value:False | value:2026-10-15T12:38:03Z | value:### Describe the bug
The packaged `csv` builder leaves the file object of every CSV it reads open, even after a complete read. Only the garbage collector closes it. `xpandas_read_csv` (`src/datasets/utils/file_utils.py:1273`) passes `xopen(path, "rb")` to `pd.read_csv`. pandas wraps that buffer, and `IOHandles.c... | value:https://api.github.com/repos/huggingface/datasets/issues/8784/comments | value:I_kwDODunzps8AAAABWbGuLQ | value:closed | value:0 | value:2026-10-15T12:38:03Z | value:https://api.github.com/repos/huggingface/datasets/issues/8784/labels{/name} | value:8784 | json:{"login": "chrikrah", "id": 48338417, "node_id": "MDQ6VXNlcjQ4MzM4NDE3", "avatar_url": "https://avatars.githubusercontent.com/u/48338417?v=4", "gravatar_id": "", "url": "https://api.github.com/users/chrikrah", "html_url": "https://github.com/chrikrah", "followers_url": "https://api.github.com/users/chrikrah/follow... | true | ||||||||
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```
AttributeError: type object 'DatasetDict' has no attribute 'from_dict'
```
This builds the `DatasetDict` from `Dataset.from_dict(...)` ... | value:https://api.github.com/repos/huggingface/datasets/issues/8783/comments | value:PR_kwDODunzps8AAAABHxkPXQ | value:open | value:0 | json:{"url": "https://api.github.com/repos/huggingface/datasets/pulls/8783", "html_url": "https://github.com/huggingface/datasets/pull/8783", "diff_url": "https://github.com/huggingface/datasets/pull/8783.diff", "patch_url": "https://github.com/huggingface/datasets/pull/8783.patch", "merged_at": null} | value:2026-10-11T05:00:00Z | value:https://api.github.com/repos/huggingface/datasets/issues/8783/labels{/name} | value:8783 | json:{"login": "shaikn6", "id": 176337212, "node_id": "U_kgDOCoKxPA", "avatar_url": "https://avatars.githubusercontent.com/u/176337212?v=4", "gravatar_id": "", "url": "https://api.github.com/users/shaikn6", "html_url": "https://github.com/shaikn6", "followers_url": "https://api.github.com/users/shaikn6/followers", "fol... | value:False | true |
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