fixup

Author: MarcoGorelli

pandas/core/interchange/column.py

@@ -197,9 +197,9 @@ def describe_null(self):
             column_null_dtype = ColumnNullType.USE_BYTEMASK
             null_value = 1
             return column_null_dtype, null_value
-        kind = self.dtype[0]
         if isinstance(self._col.dtype, ArrowDtype):
             return ColumnNullType.USE_BITMASK, 0
+        kind = self.dtype[0]
         try:
             null, value = _NULL_DESCRIPTION[kind]
         except KeyError as err:

pandas/core/interchange/utils.py

@@ -16,6 +16,8 @@
     DatetimeTZDtype,
 )
 
+from pandas.core.arrays.boolean import BooleanDtype
+
 if typing.TYPE_CHECKING:
     from pandas._typing import DtypeObj
 
@@ -142,6 +144,9 @@ def dtype_to_arrow_c_fmt(dtype: DtypeObj) -> str:
     elif isinstance(dtype, DatetimeTZDtype):
         return ArrowCTypes.TIMESTAMP.format(resolution=dtype.unit[0], tz=dtype.tz)
 
+    elif isinstance(dtype, BooleanDtype):
+        return ArrowCTypes.BOOL
+
     raise NotImplementedError(
         f"Conversion of {dtype} to Arrow C format string is not implemented."
     )

pandas/tests/interchange/test_impl.py

@@ -424,7 +424,6 @@ def test_nullable_integers() -> None:
     tm.assert_frame_equal(result, expected)
 
 
-@pytest.mark.xfail(reason="https://github.com/pandas-dev/pandas/issues/57664")
 def test_nullable_integers_pyarrow() -> None:
     # https://github.com/pandas-dev/pandas/issues/55069
     df = pd.DataFrame({"a": [1]}, dtype="Int8[pyarrow]")
@@ -437,12 +436,21 @@ def test_nullable_integers_pyarrow() -> None:
     ("data", "dtype", "expected_dtype"),
     [
         ([1, 2, None], "Int64", "int64"),
+        ([1, 2, None], "Int64[pyarrow]", "int64"),
         (
             [1, 2, None],
             "UInt64",
             "uint64",
         ),
+        (
+            [1, 2, None],
+            "UInt64[pyarrow]",
+            "uint64",
+        ),
         ([1.0, 2.25, None], "Float32", "float32"),
+        ([1.0, 2.25, None], "Float32[pyarrow]", "float32"),
+        ([True, False, None], "boolean", "bool"),
+        ([True, False, None], "boolean[pyarrow]", "bool"),
     ],
 )
 def test_pandas_nullable_w_missing_values(