Merge pull request #179 from ev-br/tuples_not_lists

ENH: return tuples not lists from functions changed in 2025.12

Author: ev-br

array_api_strict/_creation_functions.py

@@ -309,7 +309,7 @@ def linspace(
     )
 
 
-def meshgrid(*arrays: Array, indexing: Literal["xy", "ij"] = "xy") -> list[Array]:
+def meshgrid(*arrays: Array, indexing: Literal["xy", "ij"] = "xy") -> tuple[Array, ...]:
     """
     Array API compatible wrapper for :py:func:`np.meshgrid <numpy.meshgrid>`.
 
@@ -332,10 +332,12 @@ def meshgrid(*arrays: Array, indexing: Literal["xy", "ij"] = "xy") -> list[Array
     else:
         device = None
 
-    return [
+    typ = list if get_array_api_strict_flags()['api_version'] < '2025.12' else tuple
+
+    return typ(
         Array._new(array, device=device)
         for array in np.meshgrid(*[a._array for a in arrays], indexing=indexing)
-    ]
+    )
 
 
 def ones(

array_api_strict/_data_type_functions.py

@@ -49,17 +49,19 @@ def astype(
     return Array._new(x._array.astype(dtype=dtype._np_dtype, copy=copy), device=device)
 
 
-def broadcast_arrays(*arrays: Array) -> list[Array]:
+def broadcast_arrays(*arrays: Array) -> tuple[Array, ...]:
     """
     Array API compatible wrapper for :py:func:`np.broadcast_arrays <numpy.broadcast_arrays>`.
 
     See its docstring for more information.
     """
     from ._array_object import Array
 
-    return [
+    typ = list if get_array_api_strict_flags()['api_version'] < '2025.12' else tuple
+
+    return typ(
         Array._new(array, device=arrays[0].device) for array in np.broadcast_arrays(*[a._array for a in arrays])
-    ]
+    )
 
 
 @requires_api_version("2025.12")

array_api_strict/_info.py

@@ -130,5 +130,8 @@ def dtypes(
         raise ValueError(f"unsupported kind: {kind!r}")
 
     @requires_api_version('2023.12')
-    def devices(self) -> list[Device]:
-        return list(ALL_DEVICES)
+    def devices(self) -> tuple[Device]:
+        if get_array_api_strict_flags()['api_version'] < '2025.12':
+            return list(ALL_DEVICES)
+        else:
+            return tuple(ALL_DEVICES)