What state does self.finish() put the tornado web server in?

python, tornado

Solution

`self.finish()` doesn't set any status. This function finish generating the response package and put the package to write_buffer(in which the package chunk will be sent to client by tornado)

There is no need for you to call self.finish at the end of every request handler. Some return methods such as self.redirect() or self.render() do the finish work by themselves. But when you use the decorator `@web.asynchronous` to delay a response, you must call self.finish() at the end. Here is the demo of `@web.asynchronous` http://www.tornadoweb.org/en/stable/web.html?highlight=asynchronous#tornado.web.asynchronous

Problem

Original source