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8 changes: 5 additions & 3 deletions pandas/core/arrays/timedeltas.py
Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,6 @@
from pandas.core.dtypes.common import (
DT64NS_DTYPE,
TD64NS_DTYPE,
is_categorical_dtype,
is_dtype_equal,
is_float_dtype,
is_integer_dtype,
Expand All @@ -53,7 +52,10 @@
pandas_dtype,
)
from pandas.core.dtypes.dtypes import DatetimeTZDtype
from pandas.core.dtypes.generic import ABCMultiIndex
from pandas.core.dtypes.generic import (
ABCCategorical,
ABCMultiIndex,
)
from pandas.core.dtypes.missing import isna

from pandas.core import nanops
Expand Down Expand Up @@ -970,7 +972,7 @@ def sequence_to_td64ns(
elif not isinstance(data, (np.ndarray, ExtensionArray)):
# GH#24539 e.g. xarray, dask object
data = np.asarray(data)
elif is_categorical_dtype(data.dtype):
elif isinstance(data, ABCCategorical):
data = data.categories.take(data.codes, fill_value=NaT)._values
copy = False

Expand Down
4 changes: 2 additions & 2 deletions pandas/tests/arrays/test_datetimelike.py
Original file line number Diff line number Diff line change
Expand Up @@ -1372,9 +1372,9 @@ def array_likes(request):
data = memoryview(arr)
elif name == "array":
# stdlib array
from array import array
from array import array as array_stdlib
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@MarcoGorelli I wonder is there a way to make the pre-commit check not trigger in cases like this (seems like this might be a false positive)?

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yes...we can probably check that, if has been imported from pandas and there is pd., then trigger, but don't if it was imported from somewhere else

I do think I prefer aliasing array here if it's not from pandas, but I'll look into this nonetheless, thanks for bringing it up

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Personally I would say we should do import array / array.array(...). That should be clear?


data = array("i", arr)
data = array_stdlib("i", arr)
elif name == "dask":
import dask.array

Expand Down