cc @jorisvandenbossche this is coming up the quantile tests with --array-manager
index = pd.period_range("2016-01-01", periods=9, freq="D", name="A")
obj = pd.DataFrame(index).copy()
obj.iloc[:] = index._na_value
>>> obj.dtypes
A datetime64[ns]
dtype: object
We'd like to keep period[D] here.
Comment From: jorisvandenbossche
That seems fixed with https://github.com/pandas-dev/pandas/pull/39578 (setitem is not yet implemented for ArrayManager on master)
Comment From: jbrockmendel
fixed on main, may need test
Comment From: srkds
take