From ff3d39faa8aa28308cc5eae6843eaac514da8fd8 Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Tue, 26 Feb 2019 08:03:21 +0200
Subject: bpo-36109: Fix random test_descr failure. (GH-12044)

---
 Lib/test/test_descr.py | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/Lib/test/test_descr.py b/Lib/test/test_descr.py
index b38cb76..fc885c5 100644
--- a/Lib/test/test_descr.py
+++ b/Lib/test/test_descr.py
@@ -4325,7 +4325,11 @@ order (MRO) for bases """
             def __hash__(self):
                 return hash('attr')
             def __eq__(self, other):
-                del C.attr
+                try:
+                    del C.attr
+                except AttributeError:
+                    # possible race condition
+                    pass
                 return 0
 
         class Descr(object):
-- 
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