import tornado.ioloop # Create an instance of the IOLoop object ioloop = tornado.ioloop.IOLoop.current() # Stop the I/O event loop and release any resources ioloop.close() # Print a message to confirm that the event loop has been stopped print("I/O event loop stopped")
import tornado.ioloop import tornado.web # Define a handler for the HTTP request class MainHandler(tornado.web.RequestHandler): def get(self): self.write("Hello, world") # Create an instance of the application object app = tornado.web.Application([ (r"/", MainHandler), ]) # Create an instance of the IOLoop object ioloop = tornado.ioloop.IOLoop.current() # Start the I/O event loop try: ioloop.start() except KeyboardInterrupt: # Stop the I/O event loop if the user interrupts the program ioloop.close()In this example, we define a handler for an HTTP request using the tornado.web package. We then create an instance of the application object and an instance of the IOLoop object. We call the start() method on the IOLoop instance to start the event loop and run the application. We also include a try/except block to catch the KeyboardInterrupt exception and stop the event loop if the user interrupts the program using Ctrl-C. In conclusion, python tornado.ioloop IOLoop close method is a useful function that can be used to stop the I/O event loop and release any associated resources. The package library provides a powerful framework for building scalable and efficient network applications in Python using non-blocking I/O.