Rename buffer -> bytearray.
diff --git a/Lib/test/test_exceptions.py b/Lib/test/test_exceptions.py
index c405ac9..d1f9b1a 100644
--- a/Lib/test/test_exceptions.py
+++ b/Lib/test/test_exceptions.py
@@ -253,9 +253,9 @@
                                            'ordinal not in range'),
                  'encoding' : 'ascii', 'object' : 'a',
                  'start' : 0, 'reason' : 'ordinal not in range'}),
-            (UnicodeDecodeError, ('ascii', buffer(b'\xff'), 0, 1,
+            (UnicodeDecodeError, ('ascii', bytearray(b'\xff'), 0, 1,
                                   'ordinal not in range'),
-                {'args' : ('ascii', buffer(b'\xff'), 0, 1,
+                {'args' : ('ascii', bytearray(b'\xff'), 0, 1,
                                            'ordinal not in range'),
                  'encoding' : 'ascii', 'object' : b'\xff',
                  'start' : 0, 'reason' : 'ordinal not in range'}),