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19 changes: 19 additions & 0 deletions python/src/ops.cpp
Original file line number Diff line number Diff line change
Expand Up @@ -1668,6 +1668,25 @@ void init_ops(nb::module_& m) {
Returns:
array: The array of zeros with the specified shape.
)pbdoc");
m.def(
"asarray",
[](const ArrayInitType& a, std::optional<mx::Dtype> dtype) {
return create_array(a, dtype);
},
nb::arg(),
"dtype"_a = nb::none(),
nb::sig("def asarray(a: Union[scalar, array, Sequence], dtype: "
"Optional[Dtype] = None) -> array"),
R"pbdoc(
Convert the input to an array.

Args:
a: Input data.
dtype (Dtype, optional): The desired data-type for the array.

Returns:
array: An array interpretation of the input.
)pbdoc");
m.def(
"zeros_like",
&mx::zeros_like,
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52 changes: 52 additions & 0 deletions python/tests/test_array.py
Original file line number Diff line number Diff line change
Expand Up @@ -1973,6 +1973,58 @@ def test_array_namespace(self):
self.assertTrue(hasattr(api, "array"))
self.assertTrue(hasattr(api, "add"))

def test_array_namespace_asarray(self):
xp = mx.array(1.0).__array_namespace__()
self.assertTrue(hasattr(xp, "asarray"))

arr = xp.asarray([1, 2, 3])
self.assertEqual(arr.tolist(), [1, 2, 3])

arr_f32 = xp.asarray([1, 2, 3], dtype=mx.float32)
self.assertEqual(arr_f32.dtype, mx.float32)

existing = mx.array([4, 5, 6])
arr_pass = xp.asarray(existing)
self.assertEqual(arr_pass.tolist(), [4, 5, 6])

def test_asarray(self):
# List inputs
self.assertEqual(mx.asarray([1, 2, 3]).tolist(), [1, 2, 3])
self.assertEqual(mx.asarray([[1, 2], [3, 4]]).tolist(), [[1, 2], [3, 4]])

# Tuple inputs
self.assertEqual(mx.asarray((1, 2, 3)).tolist(), [1, 2, 3])
self.assertEqual(mx.asarray(((1, 2), (3, 4))).tolist(), [[1, 2], [3, 4]])

# Mixed nesting
self.assertEqual(mx.asarray([(1, 2), (3, 4)]).tolist(), [[1, 2], [3, 4]])
self.assertEqual(mx.asarray(([1, 2], [3, 4])).tolist(), [[1, 2], [3, 4]])

# Scalar inputs
self.assertEqual(mx.asarray(42).item(), 42)
self.assertEqual(mx.asarray(3.14).item(), 3.140000104904175)
self.assertEqual(mx.asarray(True).item(), True)
self.assertEqual(mx.asarray(1 + 2j).item(), (1 + 2j))

# MLX array inputs
arr = mx.array([1, 2, 3])
self.assertEqual(mx.asarray(arr).tolist(), [1, 2, 3])

arr_int = mx.array([1, 2, 3], dtype=mx.int32)
arr_float = mx.asarray(arr_int, dtype=mx.float32)
self.assertEqual(arr_float.dtype, mx.float32)
self.assertEqual(arr_float.tolist(), [1.0, 2.0, 3.0])

# NumPy array inputs
np_arr = np.array([1.0, 2.0, 3.0], dtype=np.float32)
mx_arr = mx.asarray(np_arr)
self.assertEqual(mx_arr.tolist(), [1.0, 2.0, 3.0])
self.assertEqual(mx_arr.dtype, mx.float32)

# dtype parameter
self.assertEqual(mx.asarray([1, 2, 3], dtype=mx.float32).dtype, mx.float32)
self.assertEqual(mx.asarray(42, dtype=mx.float16).dtype, mx.float16)

def test_to_scalar(self):
a = mx.array(1)
self.assertEqual(int(a), 1)
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