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| import pytest
|
| from pandas.compat import PY311
|
| from pandas import (
| offsets,
| period_range,
| )
| import pandas._testing as tm
|
|
| class TestFreq:
| def test_freq_setter_deprecated(self):
| # GH#20678
| idx = period_range("2018Q1", periods=4, freq="Q")
|
| # no warning for getter
| with tm.assert_produces_warning(None):
| idx.freq
|
| # warning for setter
| msg = (
| "property 'freq' of 'PeriodArray' object has no setter"
| if PY311
| else "can't set attribute"
| )
| with pytest.raises(AttributeError, match=msg):
| idx.freq = offsets.Day()
|
|
