DEPR: PandasArray alias (#58158)

* DEPR: rename PandasArray

* whatsnew

Author: jbrockmendel

doc/redirects.csv

@@ -1422,7 +1422,6 @@ reference/api/pandas.Series.transpose,pandas.Series.T
 reference/api/pandas.Index.transpose,pandas.Index.T
 reference/api/pandas.Index.notnull,pandas.Index.notna
 reference/api/pandas.Index.tolist,pandas.Index.to_list
-reference/api/pandas.arrays.PandasArray,pandas.arrays.NumpyExtensionArray
 reference/api/pandas.core.groupby.DataFrameGroupBy.backfill,pandas.core.groupby.DataFrameGroupBy.bfill
 reference/api/pandas.core.groupby.GroupBy.backfill,pandas.core.groupby.DataFrameGroupBy.bfill
 reference/api/pandas.core.resample.Resampler.backfill,pandas.core.resample.Resampler.bfill

doc/source/whatsnew/v3.0.0.rst

@@ -212,6 +212,7 @@ Removal of prior version deprecations/changes
 - Disallow passing a pandas type to :meth:`Index.view` (:issue:`55709`)
 - Disallow units other than "s", "ms", "us", "ns" for datetime64 and timedelta64 dtypes in :func:`array` (:issue:`53817`)
 - Removed "freq" keyword from :class:`PeriodArray` constructor, use "dtype" instead (:issue:`52462`)
+- Removed alias :class:`arrays.PandasArray` for :class:`arrays.NumpyExtensionArray` (:issue:`53694`)
 - Removed deprecated "method" and "limit" keywords from :meth:`Series.replace` and :meth:`DataFrame.replace` (:issue:`53492`)
 - Removed extension test classes ``BaseNoReduceTests``, ``BaseNumericReduceTests``, ``BaseBooleanReduceTests`` (:issue:`54663`)
 - Removed the "closed" and "normalize" keywords in :meth:`DatetimeIndex.__new__` (:issue:`52628`)

pandas/arrays/__init__.py

@@ -35,20 +35,3 @@
     "StringArray",
     "TimedeltaArray",
 ]
-
-
-def __getattr__(name: str) -> type[NumpyExtensionArray]:
-    if name == "PandasArray":
-        # GH#53694
-        import warnings
-
-        from pandas.util._exceptions import find_stack_level
-
-        warnings.warn(
-            "PandasArray has been renamed NumpyExtensionArray. Use that "
-            "instead. This alias will be removed in a future version.",
-            FutureWarning,
-            stacklevel=find_stack_level(),
-        )
-        return NumpyExtensionArray
-    raise AttributeError(f"module 'pandas.arrays' has no attribute '{name}'")

pandas/tests/api/test_api.py

@@ -395,13 +395,5 @@ def test_util_in_top_level(self):
             pd.util.foo
 
 
-def test_pandas_array_alias():
-    msg = "PandasArray has been renamed NumpyExtensionArray"
-    with tm.assert_produces_warning(FutureWarning, match=msg):
-        res = pd.arrays.PandasArray
-
-    assert res is pd.arrays.NumpyExtensionArray
-
-
 def test_set_module():
     assert pd.DataFrame.__module__ == "pandas"