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This does introduce value-dependent behavior in the dtype of df.iloc[i] but that seems better than raising, and will go away if/when we get to nullable-by-default.

@mroeschke mroeschke added Indexing Related to indexing on series/frames, not to indexes themselves Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate Categorical Categorical Data Type labels Sep 4, 2025
@mroeschke mroeschke added this to the 3.0 milestone Sep 4, 2025
@mroeschke mroeschke merged commit f1aaa39 into pandas-dev:main Sep 4, 2025
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Thanks @jbrockmendel

@jbrockmendel jbrockmendel deleted the bug-58954 branch September 4, 2025 22:29
eicchen pushed a commit to eicchen/pandas that referenced this pull request Oct 18, 2025
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Categorical Categorical Data Type Indexing Related to indexing on series/frames, not to indexes themselves Missing-data np.nan, pd.NaT, pd.NA, dropna, isnull, interpolate

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BUG: Column of dtype Categorical in DataFrame encounters error when taking a row that includes nan in the column

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