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Preserve column metadata during more DataFrame operations #15519

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merged 11 commits into from
May 3, 2024

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mroeschke
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Description

Supersedes #15410, adds a ColumnAccessor._from_columns_like_self that will preserve column attributes during DataFrame operations. This can wholly replace _from_data_like_self

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

@mroeschke mroeschke added Python Affects Python cuDF API. improvement Improvement / enhancement to an existing function non-breaking Non-breaking change labels Apr 12, 2024
@mroeschke mroeschke requested a review from a team as a code owner April 12, 2024 00:52

return self._mimic_inplace(
self._from_data_like_self(out), inplace=inplace
self._from_data_like_self(self._data._from_columns_like_self(out)),
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I still see a number of instances of _from_data_like_self. Can we use _from_data instead consistently now?

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Can we use _from_data instead consistently now?

Getting there but not quite yet due to preserving the index. IndexedFrame._from_data_like_self is like _from_data but preserves the existing index which IndexedFrame._from_data doesn't do by default.

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Minor docstring nit, thanks for the continued refactoring and cleanups!

python/cudf/cudf/core/column_accessor.py Show resolved Hide resolved
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wence- commented May 3, 2024

/merge

@rapids-bot rapids-bot bot merged commit a27feab into rapidsai:branch-24.06 May 3, 2024
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@mroeschke mroeschke deleted the ref/preserve_column/1 branch May 3, 2024 16:55
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3 participants