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What is Twisted?

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

Twisted projects variously support TCP, UDP, SSL/TLS, multicast, Unix sockets, a large number of protocols (including HTTP, NNTP, IMAP, SSH, IRC, FTP, and others), and much more.

Where can I get Twisted?

For the most recent downloads, including the core Twisted 2.1 release, visit its project page. Windows installers are also available there.

(If you are looking for the older Twisted 1.3 release, see the old download page? and old documents? page. Twisted 1.3 is deprecated, but may still be required by some third-party applications.)

What is Twisted Matrix Laboratories?

Twisted Matrix Laboratories is a distributed group of open-source developers working on a number of projects based around Twisted.


Want to help Twisted, but don't have any spare time? If you appreciate Twisted and want to help the community and future development, consider a monetary donation. This is not tax deductable. Donations will be used mostly towards payment of hosting costs.

Twisted Network Programming Essentials

That's right, the first Twisted book is finally here. Thanks to Abe Fettig for writing it and O'Reilly for publishing it: Twisted is going to be much improved for it. And this is definitely the coolest O'Reilly book cover there is.