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Fix an issue with loc when column names is MultiIndex #13929

Merged
merged 7 commits into from
Aug 22, 2023
Merged

Fix an issue with loc when column names is MultiIndex #13929

merged 7 commits into from
Aug 22, 2023

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galipremsagar
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Description

Fixes: #13864

This PR fixes an issue with loc indexer where some special handling needs to be done when columns is of type MultiIndex.

Checklist

  • I am familiar with the Contributing Guidelines.
  • New or existing tests cover these changes.
  • The documentation is up to date with these changes.

@galipremsagar galipremsagar added bug Something isn't working 3 - Ready for Review Ready for review by team Python Affects Python cuDF API. 4 - Needs cuDF (Python) Reviewer non-breaking Non-breaking change labels Aug 21, 2023
@galipremsagar galipremsagar self-assigned this Aug 21, 2023
@galipremsagar galipremsagar requested a review from a team as a code owner August 21, 2023 18:25
wence-
wence- requested changes Aug 22, 2023
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I think this makes sense, but some minor logic cleanup in the column name generation is needed.

python/cudf/cudf/core/dataframe.py Outdated Show resolved Hide resolved
python/cudf/cudf/core/dataframe.py Outdated Show resolved Hide resolved
python/cudf/cudf/tests/test_indexing.py Show resolved Hide resolved
python/cudf/cudf/core/column_accessor.py Show resolved Hide resolved
wence-
wence- approved these changes Aug 22, 2023
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Thanks @galipremsagar

@galipremsagar galipremsagar added 5 - Ready to Merge Testing and reviews complete, ready to merge and removed 3 - Ready for Review Ready for review by team 4 - Needs cuDF (Python) Reviewer labels Aug 22, 2023
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/merge

@rapids-bot rapids-bot bot merged commit 62148b4 into rapidsai:branch-23.10 Aug 22, 2023
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@wence- wence- wence- approved these changes

@brandon-b-miller brandon-b-miller Awaiting requested review from brandon-b-miller brandon-b-miller is a code owner automatically assigned from rapidsai/cudf-python-codeowners

@bdice bdice Awaiting requested review from bdice

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@galipremsagar galipremsagar

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5 - Ready to Merge Testing and reviews complete, ready to merge bug Something isn't working non-breaking Non-breaking change Python Affects Python cuDF API.
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cuDF/Dask/Numba/UCX
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Successfully merging this pull request may close these issues.

[BUG] LocIndexer of a DataFrame with a MultiIndex columns with a single label tuple returns DataFrame
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@galipremsagar @wence- @bdice