IndexError when indexing numpy array with boolean Series · Issue #6168 · pandas-dev/pandas (original) (raw)

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Description

Previously (version 0.11) it was possible to generate a boolean Series, and use that to index a numpy array. Version 0.13.0 breaks this behaviour and raises "IndexError: unsupported iterator index"

import numpy as np
import pandas as pd    

rng = np.arange(5)

rng[rng > 2]                       # works as expected
>>> array([3, 4])

b = pd.Series(rng > 2)
rng[b]                               # doesn't work anymore
>>> IndexError: unsupported iterator index