Index: Lib/test/test_support.py
===================================================================
--- Lib/test/test_support.py	(revision 77822)
+++ Lib/test/test_support.py	(working copy)
@@ -29,7 +29,8 @@
            "run_with_locale", "set_memlimit", "bigmemtest", "bigaddrspacetest",
            "BasicTestRunner", "run_unittest", "run_doctest", "threading_setup",
            "threading_cleanup", "reap_children", "cpython_only",
-           "check_impl_detail", "get_attribute", "py3k_bytes"]
+           "check_impl_detail", "get_attribute", "py3k_bytes",
+           "silence_py3k_warnings"]
 
 class Error(Exception):
     """Base class for regression test exceptions."""
@@ -483,6 +484,16 @@
     with warnings.catch_warnings(record=True) as w:
         yield WarningsRecorder(w)
 
+@contextlib.contextmanager
+def silence_py3k_warnings(*filters):
+    with warnings.catch_warnings():
+        if sys.py3kwarning:
+            if filters == ():
+                filters = (("", DeprecationWarning),)
+            for filter in filters:
+                warnings.filterwarnings("ignore", *filter)
+        yield
+
 
 class CleanImport(object):
     """Context manager to force import to return a new module reference.