or recommended for pro- duction use. Some features are missing on Windows (including multi-process mode) and scalability is limited (Even though Tornado is built on asyncio, which supports Windows, Tornado frameworks like gevent are sometimes called coroutines as well, but in Tornado all coroutines use explicit context switches and are called as asynchronous functions). Coroutines are almost as simple as all other exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce

or recommended for pro- duction use. Some features are missing on Windows (including multi-process mode) and scalability is limited (Even though Tornado is built on asyncio, which supports Windows, Tornado frameworks like gevent are sometimes called coroutines as well, but in Tornado all coroutines use explicit context switches and are called as asynchronous functions). Coroutines are almost as simple as all other exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce

or recommended for pro- duction use. Some features are missing on Windows (including multi-process mode) and scalability is limited (Even though Tornado is built on asyncio, which supports Windows, Tornado frameworks like gevent are sometimes called coroutines as well, but in Tornado all coroutines use explicit context switches and are called as asynchronous functions). Coroutines are almost as simple as all other exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce

or recommended for pro- duction use. Some features are missing on Windows (including multi-process mode) and scalability is limited (Even though Tornado is built on asyncio, which supports Windows, Tornado frameworks like gevent are sometimes called coroutines as well, but in Tornado all coroutines use explicit context switches and are called as asynchronous functions). Coroutines are almost as simple as all other exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce

or recommended for pro- duction use. Some features are missing on Windows (including multi-process mode) and scalability is limited (Even though Tornado is built on asyncio, which supports Windows, Tornado frameworks like gevent are sometimes called coroutines as well, but in Tornado all coroutines use explicit context switches and are called as asynchronous functions). Coroutines are almost as simple as all other exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce

Processes and ports Running behind a load balancer Static files and aggressive file caching Debug mode and automatic reloading WSGI and Google App Engine Introduction Tornado [http://www.tornadoweb [http://www.gevent.org] are sometimes called coroutines as well, but in Tornado all coroutines use explicit context switches and are called as asynchronous functions). Coroutines are almost as simple as all other exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce

frameworks like gevent are sometimes called coroutines as well, but in Tornado all coroutines use explicit context switches and are called as asynchronous functions). Coroutines are almost as simple as all other exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce else the user’s browser will simply hang. Here is an example that makes a call to the FriendFeed API using Tornado’s built-in AsyncHTTPClient: class MainHandler(tornado.web.RequestHandler): @tornado

frameworks like gevent are sometimes called coroutines as well, but in Tornado all coroutines use explicit context switches and are called as asynchronous functions). Coroutines are almost as simple as all other exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce fetch("http://friendfeed-api.com/v2/feed/bret") json = tornado.escape.json_decode(response.body) self.write("Fetched " + str(len(json["entries"])) + " entries " "from the FriendFeed API") For a more advanced

Processes and ports Running behind a load balancer Static files and aggressive file caching Debug mode and automatic reloading WSGI and Google App Engine Introduction Tornado [http://www.tornadoweb [http://www.gevent.org] are sometimes called coroutines as well, but in Tornado all coroutines use explicit context switches and are called as asynchronous functions). Coroutines are almost as simple as all other exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce

or recommended for pro- duction use. Some features are missing on Windows (including multi-process mode) and scalability is limited (Even though Tornado is built on asyncio, which supports Windows, Tornado frameworks like gevent are sometimes called coroutines as well, but in Tornado all coroutines use explicit context switches and are called as asynchronous functions). Coroutines are almost as simple as all other exceptions return a 500 status. The default error page includes a stack trace in debug mode and a one-line description of the error (e.g. “500: Internal Server Error”) otherwise. To produce