Killed the <> operator.  You must now use !=.

Opportunistically also fixed one or two places where '<> None' should be
'is not None' and where 'type(x) <> y' should be 'not isinstance(x, y)'.
diff --git a/Lib/test/test_wsgiref.py b/Lib/test/test_wsgiref.py
index b42f437..f33c30d 100755
--- a/Lib/test/test_wsgiref.py
+++ b/Lib/test/test_wsgiref.py
@@ -515,7 +515,7 @@
             "Content-Length: %d\r\n"
             "\r\n%s" % (h.error_status,len(h.error_body),h.error_body))
 
-        self.failUnless(h.stderr.getvalue().find("AssertionError")<>-1)
+        self.failUnless("AssertionError" in h.stderr.getvalue())
 
     def testErrorAfterOutput(self):
         MSG = "Some output has been sent"
@@ -528,7 +528,7 @@
         self.assertEqual(h.stdout.getvalue(),
             "Status: 200 OK\r\n"
             "\r\n"+MSG)
-        self.failUnless(h.stderr.getvalue().find("AssertionError")<>-1)
+        self.failUnless("AssertionError" in h.stderr.getvalue())
 
 
     def testHeaderFormats(self):