diff --git a/Lib/test/regrtest.py b/Lib/test/regrtest.py
index e9ca477e634..d0cd8552b97 100755
--- a/Lib/test/regrtest.py
+++ b/Lib/test/regrtest.py
@@ -786,7 +786,8 @@ def __init__(self, testname, verbose=0, quiet=False):
     # the corresponding method names.
 
     resources = ('sys.argv', 'cwd', 'sys.stdin', 'sys.stdout', 'sys.stderr',
-                 'os.environ', 'sys.path', 'sys.path_hooks', '__import__')
+                 'os.environ', 'sys.path', 'sys.path_hooks', '__import__',
+                 'warnings.filters')
 
     def get_sys_argv(self):
         return id(sys.argv), sys.argv, sys.argv[:]
@@ -838,6 +839,12 @@ def get___import__(self):
     def restore___import__(self, import_):
         __builtins__.__import__ = import_
 
+    def get_warnings_filters(self):
+        return id(warnings.filters), warnings.filters, warnings.filters[:]
+    def restore_warnings_filters(self, saved_filters):
+        warnings.filters = saved_filters[1]
+        warnings.filters[:] = saved_filters[2]
+
     def resource_info(self):
         for name in self.resources:
             method_suffix = name.replace('.', '_')