. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.2 Web framework . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Python Module Index 231 Index 233 i ii Tornado Documentation, Release 6.1 Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. By using non-blocking tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user. Contents 1 Tornado Documentation, Release

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.2 Web framework . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Python Module Index 245 Index 247 i ii Tornado Documentation, Release 6.2 Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. By using non-blocking tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user. CONTENTS 1 Tornado Documentation, Release

Tornado [https://www.tornadoweb.org] is a Python web framework and asynchronous networking library, originally developed at FriendFeed [https://en.wikipedia.org/wiki/FriendFeed]. By using non-blocking org/wiki/Push_technology#Long_polling], WebSockets [https://en.wikipedia.org/wiki/WebSocket], and other applications that require a long-lived connection to each user. Quick links Current version: 6.2 (download Hello, world Here is a simple “Hello, world” example web app for Tornado: import asyncio import tornado.web class MainHandler(tornado.web.RequestHandler): def get(self): self.write("Hello

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.2 Web framework . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Python Module Index 231 Index 233 i ii Tornado Documentation, Release 6.0.4 Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. By using non-blocking tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user. CONTENTS 1 Tornado Documentation, Release

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 5.2 Web framework . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . support 227 Python Module Index 229 i ii Tornado Documentation, Release 5.1.1 Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. By using non-blocking tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user. Contents 1 Tornado Documentation, Release

Tornado [http://www.tornadoweb.org] is a Python web framework and asynchronous networking library, originally developed at FriendFeed [http://friendfeed.com]. By using non-blocking network I/O, Tornado org/wiki/Push_technology#Long_polling], WebSockets [http://en.wikipedia.org/wiki/WebSocket], and other applications that require a long-lived connection to each user. Quick links Current version: 4.5.3 (download Hello, world Here is a simple “Hello, world” example web app for Tornado: import tornado.ioloop import tornado.web class MainHandler(tornado.web.RequestHandler): def get(self): self.write("Hello

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.2 Web framework . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . support 207 Python Module Index 209 i ii Tornado Documentation, Release 4.5.3 Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. By using non-blocking tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user. Contents 1 Tornado Documentation, Release

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.2 Web framework . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Python Module Index 257 Index 259 iiiTornado Documentation, Release 6.5.1 Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. By using non-blocking tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user. CONTENTS 1Tornado Documentation, Release 6

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.2 Web framework . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Python Module Index 253 Index 255 i ii Tornado Documentation, Release 6.4 Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. By using non-blocking tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user. CONTENTS 1 Tornado Documentation, Release

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 6.2 Web framework . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Python Module Index 253 Index 255 i ii Tornado Documentation, Release 6.4 Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. By using non-blocking tens of thousands of open connections, making it ideal for long polling, WebSockets, and other applications that require a long-lived connection to each user. CONTENTS 1 Tornado Documentation, Release