old_contents: import os
  from tornado.wsgi import WSGIContainer
  from tornado.ioloop import IOLoop
  from tornado.web import FallbackHandler, RequestHandler, Application
  from tornado.httpserver import HTTPServer
  from app import app
  
  
  class MainHandler(RequestHandler):
     def get(self):
         self.redirect(os.environ['SLIDES_URL'])
  
  tr = WSGIContainer(app)
  
  application = Application([
      (r'/nextop/slides', MainHandler),
      (r'.*', FallbackHandler, dict(fallback=tr)),
  ], autoreload=True)
  
  if __name__ == '__main__':
      server = HTTPServer(application)
      server.bind(80)
      server.start(0)
      IOLoop.current().start()
  
new_contents: import os
  from tornado.wsgi import WSGIContainer
  from tornado.ioloop import IOLoop
  from tornado.web import FallbackHandler, RequestHandler, Application
  from tornado.httpserver import HTTPServer
  from app import app
  
  
  class MainHandler(RequestHandler):
     def get(self):
         self.redirect(os.environ['SLIDES_URL'])
  
  tr = WSGIContainer(app)
  
  application = Application([
      (r'/nextop/slides', MainHandler),
      (r'.*', FallbackHandler, dict(fallback=tr)),
  ])
  
  if __name__ == '__main__':
      server = HTTPServer(application)
      server.bind(80)
      server.start(0)
      IOLoop.current().start()
  
subject: remove autorrload