BUG: loc raising error for MultiIndex with bool indexer #49766
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phofl
added
Bug
Indexing
mroeschke
reviewed
Nov 18, 2022
| is_bool_dtype(ax) | ||
| or ax.dtype.name == "boolean" | ||
| or isinstance(ax, MultiIndex) | ||
| and is_bool_dtype(ax.get_level_values(0)) |
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So if one wanted to index the bools in the second level (and the first level was not boolean), does that take a different code path?
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You mean something like df.loc[(slice(None), True)]?
This runs through a different path, same reason why df.loc[(True, )] worked already.
We only get there with a scalar indexer, which by definition always refers to the first level
mroeschke
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Nov 18, 2022
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Thanks @phofl |
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.locwith boolean values in MultiIndex #47687 (Replace xxxx with the GitHub issue number)doc/source/whatsnew/vX.X.X.rstfile if fixing a bug or adding a new feature.