from pandas import (
Index,
Series,
)
import pandas._testing as tm
def test_astype_str_from_bytes():
# https://github.com/pandas-dev/pandas/issues/38607
# GH#49658 pre-2.0 Index called .values.astype(str) here, which effectively
# did a .decode() on the bytes object. In 2.0 we go through
# ensure_string_array which does f"{val}"
idx = Index(["あ", b"a"], dtype="object")
result = idx.astype(str)
expected = Index(["あ", "a"], dtype="str")
tm.assert_index_equal(result, expected)
# while we're here, check that Series.astype behaves the same
result = Series(idx).astype(str)
expected = Series(expected, dtype="str")
tm.assert_series_equal(result, expected)
|