From 56d8f57b83a37b05a6f2fbc3e141bbc1ba6cb3a2 Mon Sep 17 00:00:00 2001
From: INADA Naoki <methane@users.noreply.github.com>
Date: Tue, 17 Jul 2018 13:44:47 +0900
Subject: bpo-33967: Fix wrong use of assertRaises (GH-8306)

---
 Lib/test/test_functools.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Lib/test/test_functools.py b/Lib/test/test_functools.py
index 63149d5..10bf0a2 100644
--- a/Lib/test/test_functools.py
+++ b/Lib/test/test_functools.py
@@ -2310,7 +2310,7 @@ class TestSingleDispatch(unittest.TestCase):
         def f(*args):
             pass
         msg = 'f requires at least 1 positional argument'
-        with self.assertRaises(TypeError, msg=msg):
+        with self.assertRaisesRegex(TypeError, msg):
             f()
 
 if __name__ == '__main__':
-- 
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