python Tornado websockets how to send message every X seconds?

Question

I am trying to cobble together a test which allows websockets clients to connect to a Tornado server and I want the Tornado server to send out a message to all clients every X s

Answer 1

Found that the accepted answer for this is almost exactly what I want:

How to run functions outside websocket loop in python (tornado)

With a slight modification, the accepted answer at the above link continually sends out ping messages. Here is the mod:

Change:

def test(self):
    self.write_message("scheduled!")

to:

def test(self):
    self.write_message("scheduled!")
    tornado.ioloop.IOLoop.instance().add_timeout(datetime.timedelta(seconds=5), self.test)