Downloads

Source

•  Twisted 13.0.0 tar.bz2

Windows (32-bit)

•  Twisted 13.0.0 for Python 2.7
•  Twisted 13.0.0 for Python 2.6
•  Twisted 13.0.0 for Python 2.5

Other

• More downloads

Dependencies

•  zope.interface

 Twisted News

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What is Twisted?

Twisted is an event-driven networking engine written in Python and licensed under the open source  MIT license.

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()

Learn more about  writing servers,  writing clients and the  core networking libraries , including support for SSL, UDP, scheduled events, unit testing infrastructure, and much more.

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) + "\n"

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

Learn more about  web application development,  templates and Twisted's  HTTP client.

More Protocols

Twisted also supports many common network protocols, including SMTP, POP3, IMAP, SSHv2, and DNS. For more information see our documentation and  API reference.

Community

• Get in touch with the Twisted community through email,  Stack Overflow or IRC;
• Learn about the Twisted development process and how to contribute;
• Read about software using Twisted and their success stories;
• Find out what Twisted Matrix Laboratories is;
• Learn about the individuals and organisations that Twisted aid with donations of hardware, software, hosting and other things;
• Help improve Twisted on Windows!