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FIX indexable with dataframes - #34605

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jeremiedbb merged 3 commits into
scikit-learn:mainfrom
lorentzenchr:fix_nw_indexable
Jul 31, 2026
Merged

FIX indexable with dataframes#34605
jeremiedbb merged 3 commits into
scikit-learn:mainfrom
lorentzenchr:fix_nw_indexable

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@lorentzenchr

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Reference Issues/PRs

Fix bug introduced in #33959.

What does this implement/fix? Explain your changes.

Keep input type = output type for dataframes in indexable, i.e. no conversion to narwhals.

AI usage disclosure

None

Any other comments?

@jeremiedbb You were right in #33959. It is not so much the public indexable but its use in CV tools that would then pass narwhals df to estimators which have no control over.

@jeremiedbb

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just pushed a doc build to be sure 😄

@jeremiedbb
jeremiedbb enabled auto-merge (squash) July 31, 2026 12:52
@jeremiedbb
jeremiedbb merged commit 4347a16 into scikit-learn:main Jul 31, 2026
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@lorentzenchr
lorentzenchr deleted the fix_nw_indexable branch July 31, 2026 13:46
prady0t pushed a commit to prady0t/scikit-learn that referenced this pull request Sep 2, 2026
Co-authored-by: Virgil Chan <[email protected]>
Co-authored-by: Jérémie du Boisberranger <[email protected]>
@jeremiedbb jeremiedbb mentioned this pull request Sep 8, 2026
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3 participants