changing test location to test_covert_dtypes.py

Author: road-1

pandas/core/dtypes/dtypes.py

@@ -2277,6 +2277,9 @@ def name(self) -> str:  # type: ignore[override]
     @cache_readonly
     def numpy_dtype(self) -> np.dtype:
         """Return an instance of the related numpy dtype"""
+        if pa.types.is_string(self.pyarrow_dtype):
+            # pa.string().to_pandas_dtype() = object which we don't want
+            return np.dtype(str)
         try:
             return np.dtype(self.pyarrow_dtype.to_pandas_dtype())
         except (NotImplementedError, TypeError):

pandas/tests/copy_view/test_astype.py

@@ -236,19 +236,3 @@ def test_convert_dtypes(using_infer_string):
     df2.iloc[0, 0] = "x"
     df2.iloc[0, 1] = 10
     tm.assert_frame_equal(df, df_orig)
-
-
-def test_convert_dtypes_pyarrow_timezone():
-    # GH 60237
-    expected = Series(
-        [
-            "1970-01-01 00:00:00+00:00",
-            "1970-01-01 01:00:00+00:00",
-            "1970-01-01 02:00:00+00:00",
-            "1970-01-01 03:00:00+00:00",
-            "1970-01-01 04:00:00+00:00",
-        ],
-        dtype="timestamp[ns, tz=UTC][pyarrow]",
-    )
-    result = expected.convert_dtypes(dtype_backend="pyarrow")
-    tm.assert_series_equal(result, expected)

pandas/tests/frame/methods/test_convert_dtypes.py

@@ -196,3 +196,12 @@ def test_convert_dtypes_from_arrow(self):
         result = df.convert_dtypes()
         expected = df.astype({"a": "string[python]"})
         tm.assert_frame_equal(result, expected)
+
+    def test_convert_dtypes_timezone_series(self):
+        df = pd.Series(
+            pd.to_datetime(range(5), utc=True, unit="h"),
+            dtype="timestamp[ns, tz=UTC][pyarrow]",
+        )
+        result = df.convert_dtypes(dtype_backend="pyarrow")
+        expected = df
+        tm.assert_series_equal(result, expected)