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PR Description

Please describe the changes proposed in the pull request:

  • undeprecate select_columns and select_rows
  • deprecate filter_column_isin
  • update register_groupby_method to register_dataframe_groupby_method

This PR resolves #1514.

Please tag maintainers to review.

@samukweku samukweku self-assigned this Nov 23, 2025
@samukweku samukweku linked an issue Nov 23, 2025 that may be closed by this pull request
@ericmjl
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ericmjl commented Nov 23, 2025

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Just a quick question to address.

from janitor.functions.select import get_index_labels


@pf.register_groupby_method
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@samukweku are we sure this is to be deleted?

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@ericmjl yes, this has been replaced with @pf.register_dataframe_groupby_method -> @pf.register_dataframe_groupby_method

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Apologies, @samukweku I probably should have been clearer in my phrasing -- I noticed that the whole ungroup function was deleted, is this intentional?

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thanks for the observation @ericmjl ... I have updated the code to show that ungroup is deprecated.

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undeprecate select_columns and select_rows

3 participants