`test_typing`: use all pickle protocols (GH-99154)

(cherry picked from commit a0bc75e2fdd53680cb147881bcb3754bd56aa2fa)

Co-authored-by: Nikita Sobolev <mail@sobolevn.me>

diff --git a/Lib/test/test_typing.py b/Lib/test/test_typing.py
index 6c53154686c914a37b3896d74fe0012ce00069b6..7e033c02c40ea78fa94a5bb9b24ffb6b7aa15097 100644 (file)
--- a/Lib/test/test_typing.py
+++ b/Lib/test/test_typing.py
@@ -1560,7 +1560,7 @@ class ProtocolTests(BaseTestCase):
             self.assertEqual(x.bar, 'abc')
             self.assertEqual(x.x, 1)
             self.assertEqual(x.__dict__, {'foo': 42, 'bar': 'abc'})
-            s = pickle.dumps(P)
+            s = pickle.dumps(P, proto)
             D = pickle.loads(s)
 
             class E: