From 6d6b91d48ac64afe0f0ee5706f6a641408c327ad Mon Sep 17 00:00:00 2001
From: Patrick Peglar <patrick.peglar@metoffice.gov.uk>
Date: Fri, 1 Feb 2019 11:34:26 +0000
Subject: [PATCH] Fix for numpy 1v16.

---
 lib/iris/fileformats/pp.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/iris/fileformats/pp.py b/lib/iris/fileformats/pp.py
index 5b5f7c8a36..1c1d281871 100644
--- a/lib/iris/fileformats/pp.py
+++ b/lib/iris/fileformats/pp.py
@@ -719,8 +719,10 @@ def _data_bytes_to_shaped_array(data_bytes, lbpack, boundary_packing,
         raise iris.exceptions.NotYetImplementedError(
             'PP fields with LBPACK of %s are not yet supported.' % lbpack)
 
-    # Ensure we have write permission on the data buffer.
-    data.setflags(write=True)
+    # Ensure we have a writeable data buffer.
+    # NOTE: "data.setflags(write=True)" is not valid for numpy >= 1.16.0.
+    if not data.flags['WRITEABLE']:
+        data = data.copy()
 
     # Ensure the data is in the native byte order
     if not data.dtype.isnative: