WIP: Support PyArrow JSON type in ArrowDtype.type

Author: asharmalik19

pandas/core/dtypes/dtypes.py

@@ -2267,6 +2267,8 @@ def type(self):
             return type(pa_type)
         elif isinstance(pa_type, pa.ExtensionType):
             return type(self)(pa_type.storage_type).type
+        elif isinstance(pa_type, pa.JsonType):
+            return str
         raise NotImplementedError(pa_type)
 
     @property

pandas/tests/extension/test_arrow.py

@@ -3553,3 +3553,11 @@ def test_categorical_from_arrow_dictionary():
         dtype="int64",
     )
     tm.assert_series_equal(result, expected)
+
+
+def test_arrow_json_type():
+    # GH 60958
+
+    dtype = pd.ArrowDtype(pa.json_(pa.string()))
+    result = pd.api.types.pandas_dtype(dtype).type
+    assert result == str