Reverting the Revision: 77368.  I committed Flox's big patch for tests by
mistake. ( It may come in for sure tough)
diff --git a/Lib/test/test_wsgiref.py b/Lib/test/test_wsgiref.py
index c31ef18..a3bc99f 100755
--- a/Lib/test/test_wsgiref.py
+++ b/Lib/test/test_wsgiref.py
@@ -432,10 +432,10 @@
         env = handler.environ
         from os import environ
         for k,v in environ.items():
-            if k not in empty:
+            if not empty.has_key(k):
                 self.assertEqual(env[k],v)
         for k,v in empty.items():
-            self.assertTrue(k in env)
+            self.assertTrue(env.has_key(k))
 
     def testEnviron(self):
         h = TestHandler(X="Y")
@@ -448,7 +448,7 @@
         h = BaseCGIHandler(None,None,None,{})
         h.setup_environ()
         for key in 'wsgi.url_scheme', 'wsgi.input', 'wsgi.errors':
-            self.assertTrue(key in h.environ)
+            self.assertTrue(h.environ.has_key(key))
 
     def testScheme(self):
         h=TestHandler(HTTPS="on"); h.setup_environ()