Issue #20555: Use specific asserts in urllib, httplib, ftplib, cgi, wsgiref tests.
diff --git a/Lib/test/test_wsgiref.py b/Lib/test/test_wsgiref.py
index 88d4a3d..401d784 100644
--- a/Lib/test/test_wsgiref.py
+++ b/Lib/test/test_wsgiref.py
@@ -155,7 +155,7 @@
# Check existing value
env = {key:alt}
util.setup_testing_defaults(env)
- self.assertTrue(env[key] is alt)
+ self.assertIs(env[key], alt)
def checkCrossDefault(self,key,value,**kw):
util.setup_testing_defaults(kw)
@@ -302,7 +302,7 @@
self.assertEqual(Headers(test[:]).keys(), ['x'])
self.assertEqual(Headers(test[:]).values(), ['y'])
self.assertEqual(Headers(test[:]).items(), test)
- self.assertFalse(Headers(test).items() is test) # must be copy!
+ self.assertIsNot(Headers(test).items(), test) # must be copy!
h=Headers([])
del h['foo'] # should not raise an error