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diff --git a/src/mailman/rest/traverse.py b/src/mailman/rest/traverse.py
new file mode 100644
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+++ b/src/mailman/rest/traverse.py
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+# Copyright (C) 2009 by the Free Software Foundation, Inc.
+#
+# This file is part of GNU Mailman.
+#
+# GNU Mailman is free software: you can redistribute it and/or modify it under
+# the terms of the GNU General Public License as published by the Free
+# Software Foundation, either version 3 of the License, or (at your option)
+# any later version.
+#
+# GNU Mailman is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+# more details.
+#
+# You should have received a copy of the GNU General Public License along with
+# GNU Mailman.  If not, see <http://www.gnu.org/licenses/>.
+
+"""Traversal rules for the Mailman RESTful admin web service."""
+
+from __future__ import absolute_import, unicode_literals
+
+__metaclass__ = type
+__all__ = [
+    'Traverse',
+    ]
+
+
+from urllib import unquote
+
+from zope.component import adapts
+from zope.interface import implements
+from zope.publisher.interfaces import IPublishTraverse, NotFound
+from zope.publisher.interfaces.browser import IDefaultBrowserLayer
+
+
+
+class Traverse:
+    """An implementation of `IPublishTraverse` that uses the get() method."""
+
+    implements(IPublishTraverse)
+    adapts(IHasGet, IDefaultBrowserLayer)
+
+    def __init__(self, context, request):
+        self.context = context
+
+    def publishTraverse(self, request, name):
+        """See `IPublishTraverse`."""
+        name = unquote(name)
+        value = self.context.get(name)
+        if value is None:
+            raise NotFound(self, name)
+        return value