diff --git a/Lib/test/regrtest.py b/Lib/test/regrtest.py
index 1fa5d50..dee2847 100755
--- a/Lib/test/regrtest.py
+++ b/Lib/test/regrtest.py
@@ -63,6 +63,12 @@
 import traceback
 import random
 import StringIO
+import warnings
+
+# I see no other way to suppress these warnings;
+# putting them in test_grammar.py has no effect:
+warnings.filterwarnings("ignore", "hex/oct constants", DeprecationWarning,
+                        ".*test.test_grammar$")
 
 from test import test_support