From b2f53b53d40076e0695b08487272338e8398c680 Mon Sep 17 00:00:00 2001
From: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>
Date: Tue, 13 Jun 2023 11:57:29 -0700
Subject: [PATCH 1/2] BUG: Indexing a timestamp ArrowDtype Index

---
 doc/source/whatsnew/v2.0.3.rst         |  2 +-
 pandas/core/indexes/base.py            |  3 ++-
 pandas/tests/indexing/test_datetime.py | 18 ++++++++++++++++++
 3 files changed, 21 insertions(+), 2 deletions(-)

diff --git a/doc/source/whatsnew/v2.0.3.rst b/doc/source/whatsnew/v2.0.3.rst
index 3da469c2e1fe6..0e32cdc95dbbc 100644
--- a/doc/source/whatsnew/v2.0.3.rst
+++ b/doc/source/whatsnew/v2.0.3.rst
@@ -24,7 +24,7 @@ Bug fixes
 - Bug in :func:`RangeIndex.union` when using ``sort=True`` with another :class:`RangeIndex` (:issue:`53490`)
 - Bug in :func:`read_csv` when defining ``dtype`` with ``bool[pyarrow]`` for the ``"c"`` and ``"python"`` engines (:issue:`53390`)
 - Bug in :meth:`Series.str.split` and :meth:`Series.str.rsplit` with ``expand=True`` for :class:`ArrowDtype` with ``pyarrow.string`` (:issue:`53532`)
--
+- Bug when indexing a :class:`DataFrame` or :class:`Series` with an :class:`Index` with a timestamp :class:`ArrowDtype` would raise an ``AttributeError`` (:issue:`53644`)
 
 .. ---------------------------------------------------------------------------
 .. _whatsnew_203.other:
diff --git a/pandas/core/indexes/base.py b/pandas/core/indexes/base.py
index 2c6c6dd0e6ed1..b4a3500ab257d 100644
--- a/pandas/core/indexes/base.py
+++ b/pandas/core/indexes/base.py
@@ -113,6 +113,7 @@
 )
 from pandas.core.dtypes.concat import concat_compat
 from pandas.core.dtypes.dtypes import (
+    ArrowDtype,
     CategoricalDtype,
     DatetimeTZDtype,
     ExtensionDtype,
@@ -6037,7 +6038,7 @@ def _get_indexer_strict(self, key, axis_name: str_t) -> tuple[Index, np.ndarray]
         if isinstance(key, Index):
             # GH 42790 - Preserve name from an Index
             keyarr.name = key.name
-        if keyarr.dtype.kind in "mM":
+        if keyarr.dtype.kind in "mM" and not isinstance(keyarr.dtype, ArrowDtype):
             # DTI/TDI.take can infer a freq in some cases when we dont want one
             if isinstance(key, list) or (
                 isinstance(key, type(self))
diff --git a/pandas/tests/indexing/test_datetime.py b/pandas/tests/indexing/test_datetime.py
index 15e1fae77d65b..6510612ba6f87 100644
--- a/pandas/tests/indexing/test_datetime.py
+++ b/pandas/tests/indexing/test_datetime.py
@@ -168,3 +168,21 @@ def test_getitem_str_slice_millisecond_resolution(self, frame_or_series):
             ],
         )
         tm.assert_equal(result, expected)
+
+    def test_getitem_pyarrow_index(self, frame_or_series):
+        # GH 53644
+        pytest.importorskip("pyarrow")
+        obj = frame_or_series(
+            range(5),
+            index=date_range("2020", freq="D", periods=5).astype(
+                "timestamp[us][pyarrow]"
+            ),
+        )
+        result = obj.loc[obj.index[:-3]]
+        expected = frame_or_series(
+            range(2),
+            index=date_range("2020", freq="D", periods=2).astype(
+                "timestamp[us][pyarrow]"
+            ),
+        )
+        tm.assert_equal(result, expected)

From 724bd8e4eff2356c2ccbc79a62566bf8b0407882 Mon Sep 17 00:00:00 2001
From: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>
Date: Tue, 13 Jun 2023 15:55:49 -0700
Subject: [PATCH 2/2] more explicit check

---
 pandas/core/indexes/base.py | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pandas/core/indexes/base.py b/pandas/core/indexes/base.py
index b4a3500ab257d..006381ce691fd 100644
--- a/pandas/core/indexes/base.py
+++ b/pandas/core/indexes/base.py
@@ -113,7 +113,6 @@
 )
 from pandas.core.dtypes.concat import concat_compat
 from pandas.core.dtypes.dtypes import (
-    ArrowDtype,
     CategoricalDtype,
     DatetimeTZDtype,
     ExtensionDtype,
@@ -6038,7 +6037,9 @@ def _get_indexer_strict(self, key, axis_name: str_t) -> tuple[Index, np.ndarray]
         if isinstance(key, Index):
             # GH 42790 - Preserve name from an Index
             keyarr.name = key.name
-        if keyarr.dtype.kind in "mM" and not isinstance(keyarr.dtype, ArrowDtype):
+        if lib.is_np_dtype(keyarr.dtype, "mM") or isinstance(
+            keyarr.dtype, DatetimeTZDtype
+        ):
             # DTI/TDI.take can infer a freq in some cases when we dont want one
             if isinstance(key, list) or (
                 isinstance(key, type(self))