@manager.command
def runserver(host="127.0.0.1", port=8000):
    """Run a gevent-based WSGI server."""
    port = int(port)

    wrapped_app = app
    if app.config.get("DEBUG", True):
        wrapped_app = werkzeug.debug.DebuggedApplication(app)

    server = WSGIServer(listener=(host, port), application=wrapped_app,
                        handler_class=WebSocketHandler)

    def serve():
        print(" * Running on http://%s:%d/" % (host, port))
        server.serve_forever()

    if app.debug:
        # the watchdog reloader (with watchdog==0.8.3) appears to hang on
        # Windows 8.1, so we're using stat instead
        werkzeug.serving.run_with_reloader(
            serve, reloader_type="stat" if sys.platform == "win32" else "auto")
    else:
        serve()