Tweaks to make the codecmaps tests pass again.
(To run these, you need to pass -uurlfetch to regrtest.py or runtests.sh.)
diff --git a/Lib/test/test_codecmaps_tw.py b/Lib/test/test_codecmaps_tw.py
index 71402c4..4bd1966 100644
--- a/Lib/test/test_codecmaps_tw.py
+++ b/Lib/test/test_codecmaps_tw.py
@@ -20,8 +20,8 @@
     mapfileurl = 'http://www.unicode.org/Public/MAPPINGS/VENDORS/MICSFT/' \
                  'WINDOWS/CP950.TXT'
     pass_enctest = [
-        ('\xa2\xcc', '\u5341'),
-        ('\xa2\xce', '\u5345'),
+        (b'\xa2\xcc', '\u5341'),
+        (b'\xa2\xce', '\u5345'),
     ]
 
 def test_main():