油烟监测 python后端代码

zmc

2023-08-08 e792e9a60d958b93aef96050644f369feb25d61b

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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)