Getting start with twisted

twisted-helloworld.txt

1 Visit http://twistedmatrix.com to learn twisted 

2 Visit http://twistedmatrix.com/trac/wiki/Downloads to download twisted and zope.interface (required on windows)

3 Setup twisted and zope.interface( need setuptoools/easy_isntall, download by http://pypi.python.org/packages/2.6/s/setuptools/setuptools-0.6c11.win32-py2.6.exe#md5=1509752c3c2e64b5d0f9589aafe053dc)

4 Run example code from twisted website:

- Easy Custom Servers and Clients

Twisted makes it easy to implement custom network applications, both servers and clients. Here's a TCP server that echoes back everything that's written to it:

from twisted.internet import protocol, reactor

class Echo(protocol.Protocol):
    def dataReceived(self, data):
        self.transport.write(data)

class EchoFactory(protocol.Factory):
    def buildProtocol(self, addr):
        return Echo()

reactor.listenTCP(1234, EchoFactory())
reactor.run()


- Event-Driven Web Applications ¶

Twisted includes an event-driven web server. Here's a sample web application:

from twisted.web import server, resource
from twisted.internet import reactor

class HelloResource(resource.Resource):
    isLeaf = True
    numberRequests = 0

    def render_GET(self, request):
        self.numberRequests += 1
        request.setHeader("content-type", "text/plain")
        return "I am request #" + str(self.numberRequests)

reactor.listenTCP(8080, server.Site(HelloResource()))
reactor.run()