From 4e4688f5bf03d7f6f39b967d4c1af28307f7e3ee Mon Sep 17 00:00:00 2001
From: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>
Date: Fri, 31 Mar 2023 11:17:43 -0700
Subject: [PATCH] ENH: Implement .dt.year for ArrowExtensionArray

---
 pandas/core/arrays/arrow/array.py    | 4 ++++
 pandas/tests/extension/test_arrow.py | 1 +
 2 files changed, 5 insertions(+)

diff --git a/pandas/core/arrays/arrow/array.py b/pandas/core/arrays/arrow/array.py
index 998aa6b9e6f08..86a15ba6ca61b 100644
--- a/pandas/core/arrays/arrow/array.py
+++ b/pandas/core/arrays/arrow/array.py
@@ -1961,6 +1961,10 @@ def _str_wrap(self, width: int, **kwargs):
             "str.wrap not supported with pd.ArrowDtype(pa.string())."
         )
 
+    @property
+    def _dt_year(self):
+        return type(self)(pc.year(self._pa_array))
+
     @property
     def _dt_day(self):
         return type(self)(pc.day(self._pa_array))
diff --git a/pandas/tests/extension/test_arrow.py b/pandas/tests/extension/test_arrow.py
index 24013f4aa3a9a..f441c2656c92a 100644
--- a/pandas/tests/extension/test_arrow.py
+++ b/pandas/tests/extension/test_arrow.py
@@ -2110,6 +2110,7 @@ def test_unsupported_dt(data):
 @pytest.mark.parametrize(
     "prop, expected",
     [
+        ["year", 2023],
         ["day", 2],
         ["day_of_week", 0],
         ["dayofweek", 0],