Project description
Tornado is a Python web framework and
asynchronous networking library, originally developed at FriendFeed . By using non-blocking network I/O, Tornado
can scale to 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.
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, world" )
def make_app ():
return tornado . web . Application ([
( r "/" , MainHandler ),
])
if __name__ == "__main__" :
app = make_app ()
app . listen ( 8888 )
tornado . ioloop . IOLoop . current () . start ()
This example does not use any of Tornado’s asynchronous features; for
that see this simple chat room .
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