#2503 make singletons compared with "is" not == or !=
Thanks to Wummel for the patch
diff --git a/Lib/test/test_ssl.py b/Lib/test/test_ssl.py
index f5ae026..856434f 100644
--- a/Lib/test/test_ssl.py
+++ b/Lib/test/test_ssl.py
@@ -546,7 +546,7 @@
                           expectedToWork,
                           certsreqs=None):
 
-        if certsreqs == None:
+        if certsreqs is None:
             certsreqs = ssl.CERT_NONE
 
         if certsreqs == ssl.CERT_NONE: