Inzynierka/Lib/site-packages/pandas/tests/indexes/base_class/test_pickle.py

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2023-06-02 12:51:02 +02:00
from pandas import Index
import pandas._testing as tm
def test_pickle_preserves_object_dtype():
# GH#43188, GH#43155 don't infer numeric dtype
index = Index([1, 2, 3], dtype=object)
result = tm.round_trip_pickle(index)
assert result.dtype == object
tm.assert_index_equal(index, result)