From b957b8d4d74eff42ec474d652380e817d26828a6 Mon Sep 17 00:00:00 2001
From: Illviljan <14371165+Illviljan@users.noreply.github.com>
Date: Mon, 16 Oct 2023 00:31:34 +0200
Subject: [PATCH] handle numpy astype

---
 xarray/core/duck_array_ops.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/xarray/core/duck_array_ops.py b/xarray/core/duck_array_ops.py
index 078aab0ed63..51b6ff5f59b 100644
--- a/xarray/core/duck_array_ops.py
+++ b/xarray/core/duck_array_ops.py
@@ -184,6 +184,9 @@ def cumulative_trapezoid(y, x, axis):
 def astype(data, dtype, **kwargs):
     if hasattr(data, "__array_namespace__"):
         xp = get_array_namespace(data)
+        if xp == np:
+            # numpy currently doesn't have a astype:
+            return data.astype(dtype, **kwargs)
         return xp.astype(data, dtype, **kwargs)
     return data.astype(dtype, **kwargs)