From 8ca9221ec58e65dbf2ac9d669de216c0366088c1 Mon Sep 17 00:00:00 2001
From: Ross Barnowski <rossbar@berkeley.edu>
Date: Wed, 19 Oct 2022 19:35:25 -0700
Subject: DEP: Add deprecation warning and check warning in test.

---
 numpy/lib/function_base.py | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'numpy/lib/function_base.py')

diff --git a/numpy/lib/function_base.py b/numpy/lib/function_base.py
index 67ea54635..414752613 100644
--- a/numpy/lib/function_base.py
+++ b/numpy/lib/function_base.py
@@ -3678,6 +3678,11 @@ def msort(a):
            [3, 4]])
 
     """
+    warnings.warn(
+        "msort is deprecated, use np.sort(a, axis=0) instead",
+        DeprecationWarning,
+        stacklevel=3,
+    )
     b = array(a, subok=True, copy=True)
     b.sort(0)
     return b
-- 
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