Emit deprecation warnings for the length and owner keywords

CHANGELOG.md

@@ -9,6 +9,9 @@
 
 ### Changed
 
+- Emit deprecation warnings for the use of the `owner` and `length` keywords in
+  the `wp.array` initializer.
+
 ### Fixed
 
 - Fix errors during graph capture caused by module unloading ([GH-401](https://github.com/NVIDIA/warp/issues/401)).

warp/types.py

@@ -1701,8 +1701,22 @@ def __init__(
                     )
         elif length is not None:
             # backward compatibility
+            warp.utils.warn(
+                "The 'length' keyword is deprecated and will be removed\n" "in a future version. Use 'shape' instead.",
+                category=DeprecationWarning,
+                stacklevel=2,
+            )
             shape = (length,)
 
+        if owner:
+            warp.utils.warn(
+                "The 'owner' keyword in the array initializer is\n"
+                "deprecated and will be removed in a future version. It currently has no effect.\n"
+                "Pass a function to the 'deleter' keyword instead.",
+                category=DeprecationWarning,
+                stacklevel=2,
+            )
+
         # determine the construction path from the given arguments
         if data is not None:
             # data or ptr, not both