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PERF: Categorical getitem perf #30747

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Merged
merged 1 commit into from
Jan 6, 2020
Merged

PERF: Categorical getitem perf #30747

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7 changes: 5 additions & 2 deletions pandas/core/arrays/categorical.py
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Original file line number Diff line number Diff line change
Expand Up @@ -39,7 +39,7 @@
)
from pandas.core.dtypes.dtypes import CategoricalDtype
from pandas.core.dtypes.generic import ABCIndexClass, ABCSeries
from pandas.core.dtypes.inference import is_hashable
from pandas.core.dtypes.inference import is_array_like, is_hashable
from pandas.core.dtypes.missing import isna, notna

from pandas.core import ops
Expand Down Expand Up @@ -1998,7 +1998,10 @@ def __getitem__(self, key):
else:
return self.categories[i]

elif com.is_bool_indexer(key):
if is_list_like(key) and not is_array_like(key):
key = np.asarray(key)

if com.is_bool_indexer(key):
key = check_bool_array_indexer(self, key)

return self._constructor(
Expand Down