Fix NumPy 2.0 compatibility in numpy_parser

dkropachev · claude · dkropachev · commit 56ed5b3d14e1 · 2026-01-29T21:24:14.000-04:00
The `ndarray.newbyteorder()` method was removed in NumPy 2.0.
Use `arr.view(arr.dtype.newbyteorder())` instead, which is compatible
with both NumPy 1.x and 2.x.

This fixes the failing numpy protocol handler integration tests
that started running after numpy was added to dev dependencies.

Co-Authored-By: Claude Opus 4.5 &lt;noreply@anthropic.com&gt;
diff --git a/cassandra/numpy_parser.pyx b/cassandra/numpy_parser.pyx
@@ -181,5 +181,6 @@ def make_native_byteorder(arr):
         # accordingly (e.g. from '>i8' to '<i8')
         #
         # Ignore any object arrays of dtype('O')
-        return arr.byteswap().newbyteorder()
+        # Note: arr.newbyteorder() was removed in NumPy 2.0, use view() instead
+        return arr.byteswap().view(arr.dtype.newbyteorder())
     return arr

Original file line number	Diff line number	Diff line change
`@@ -181,5 +181,6 @@ def make_native_byteorder(arr):`
`181`	`181`	`# accordingly (e.g. from '>i8' to '<i8')`
`182`	`182`	`#`
`183`	`183`	`# Ignore any object arrays of dtype('O')`
`184`		`- return arr.byteswap().newbyteorder()`
	`184`	`+ # Note: arr.newbyteorder() was removed in NumPy 2.0, use view() instead`
	`185`	`+ return arr.byteswap().view(arr.dtype.newbyteorder())`
`185`	`186`	`return arr`