BUG: CategoricalIndex can't be a boolen mask · Issue #22665 · pandas-dev/pandas (original) (raw)

In [1]: import pandas as pd

In [2]: idx = pd.CategoricalIndex([True, False, True])

In [3]: pd.Series(range(3))[idx] Out[3]: True NaN False NaN True NaN dtype: float64

Fix coming shortly.