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diff --git a/src/mailman/rest/gunicorn.py b/src/mailman/rest/gunicorn.py
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+# Copyright (C) 2015 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/>.
+
+"""Experimental Gunicorn based REST server.
+
+To use this do the following:
+
+* Install gunicorn as a Python 3 application (in a venv if necessary).
+* Create a mailman.cfg with at least the following it it:
+
+  [runner.rest]
+  start: no
+
+* Start Mailman as normal: `mailman start`
+* Set the MAILMAN_CONFIG_FILE environment variable to the location of your
+  mailman.cfg file from above.
+* Run: gunicorn mailman.rest.gunicorn:make_application
+"""
+
+__all__ = [
+    'make_application',
+    ]
+
+
+
+def make_application():
+    """Create the WSGI application, after initializing the Mailman system.
+
+    Use this if you want to integrate Mailman's REST server with an external
+    WSGI server, such as gunicorn.  Be sure to set the $MAILMAN_CONFIG_FILE
+    environment variable.
+    """
+    from mailman.core.initialize import initialize
+    initialize()
+    from mailman.rest.wsgiapp import make_application as base_application
+    return base_application()