Return Python array API compatible device objects from inspection namespace

CHANGELOG.md

@@ -54,6 +54,7 @@ This release is compatible with NumPy 2.5.
 * Fixed `dpnp.linalg.svd(..., hermitian=True)` returning a non-unitary `vh` for singular input arrays due to a zero sign appearing [#2954](https://github.com/IntelPython/dpnp/pull/2954)
 * Fixed scalar conversion of size-one `dpnp.tensor.usm_ndarray` (e.g. `int()`, `float()`, indexing) which failed with NumPy 2.5 after the in-place `ndarray.shape` assignment was deprecated [#2958](https://github.com/IntelPython/dpnp/pull/2958)
 * Fixed `dpnp.mgrid` and `dpnp.ogrid` to return consistent results between single-slice and tuple-of-slices syntax when the step is a complex number with a non-integer magnitude (e.g. `2.5j`) [#2971](https://github.com/IntelPython/dpnp/pull/2971)
+* Fixed `__array_namespace_info__().devices()` and `.default_device()` to return Python array API compatible device objects [#2979](https://github.com/IntelPython/dpnp/pull/2979)
 
 ### Security
 

dpnp/tensor/_array_api.py

@@ -132,9 +132,9 @@ def default_device(self):
         """
         default_device()
 
-        Returns the default SYCL device.
+        Returns the default device.
         """
-        return dpctl.select_default_device()
+        return dpt.Device.create_device(dpctl.select_default_device())
 
     def default_dtypes(self, *, device=None):
         """
@@ -239,9 +239,9 @@ def devices(self):
         """
         devices()
 
-        Returns a list of supported devices.
+        Returns a tuple of supported devices.
         """
-        return dpctl.get_devices()
+        return tuple(dpt.Device.create_device(d) for d in dpctl.get_devices())
 
 
 def __array_namespace_info__():

dpnp/tests/tensor/test_tensor_array_api_inspection.py

@@ -69,7 +69,7 @@ def test_array_api_inspection_default_device():
         dev = dpctl.select_default_device()
     except dpctl.SyclDeviceCreationError:
         pytest.skip("No default device available")
-    assert dpt.__array_namespace_info__().default_device() == dev
+    assert dpt.__array_namespace_info__().default_device().sycl_device == dev
 
 
 def test_array_api_inspection_devices():
@@ -79,7 +79,7 @@ def test_array_api_inspection_devices():
         pytest.skip("No default device available")
     devices1 = dpt.__array_namespace_info__().devices()
     assert len(devices1) == len(devices2)
-    assert devices1 == devices2
+    assert tuple(dev.sycl_device for dev in devices1) == devices2
 
 
 def test_array_api_inspection_capabilities():
@@ -142,7 +142,7 @@ def test_array_api_inspection_device_dtypes():
     except dpctl.SyclDeviceCreationError:
         pytest.skip("No default device available")
     dtypes = _dtypes_no_fp16_fp64.copy()
-    if dev.has_aspect_fp64:
+    if dev.sycl_device.has_aspect_fp64:
         dtypes["float64"] = dpt.float64
         dtypes["complex128"] = dpt.complex128
 
@@ -210,7 +210,7 @@ def test_array_api_inspection_dtype_kind_errors():
 def test_array_api_inspection_device_types():
     info = dpt.__array_namespace_info__()
     try:
-        dev = info.default_device()
+        dev = info.default_device().sycl_device
     except dpctl.SyclDeviceCreationError:
         pytest.skip("No default device available")
 

dpnp/tests/test_array_api_info.py

@@ -22,7 +22,7 @@ def test_capabilities():
 
 
 def test_default_device():
-    assert info.default_device() == default_device
+    assert info.default_device().sycl_device == default_device
 
 
 def test_default_dtypes():
@@ -130,4 +130,6 @@ def test_dtypes_invalid_device():
 
 
 def test_devices():
-    assert info.devices() == get_devices()
+    devices = info.devices()
+    assert isinstance(devices, tuple)
+    assert tuple(dev.sycl_device for dev in devices) == get_devices()