Simplest possible threaded Tornado server

tornado_threaded.py

import tornado.ioloop
import tornado.web
import threading
import time


class ReadHandler(tornado.web.RequestHandler):
    def get(self):
        self.write("hello world")


def make_app():
    return tornado.web.Application([
        (r"/", ReadHandler),
        (r"/static/(.*)", tornado.web.StaticFileHandler, {"path": "static"}),
    ])


class ThreadedClient(threading.Thread):
    def __init__(self):
        threading.Thread.__init__(self)

    def run(self):
        while True:
            try:
                print("Background process running")

                run_interval = 360
                print(f"Sleeping for {run_interval / 60} minutes")
                time.sleep(run_interval)
            except Exception as e:
                print(f"Error: {e}")


if __name__ == "__main__":

    background = ThreadedClient()
    background.start()
    print("Background process started")

    app = make_app()
    app.listen(1236)
    print("Main process starting")
    tornado.ioloop.IOLoop.current().start()