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= Twisted Core =

Twisted Core is an asynchronous event loop and associated utilities, supporting TCP, UDP, multicast, SSL/TLS, serial communication and more. It is used by most of the servers, clients and protocols that are part of other [wiki:TwistedProjects Twisted projects].

The core "minimal" distribution contains a number of modules:

 * twisted.internet, the Twisted event loop;
 * twisted.cred, a pluggable authentication system for servers;
 * twisted.enterprise, an asynchonous adaptor of Python DB-API 2.0 database interfaces;
 * twisted.manhole, a debugging service;
 * twisted.persisted, a collection of object persistance systems
 * twisted.protocols, a collection of helper protocols (such as a line-oriented helper, a length-prefixed helper, a netstrings helper, etc);
 * twisted.python, a set of Twisted programming abstractions;
 * twisted.spread, a network transport, serializer and object broker;
 * [wiki:TwistedTrial twisted.trial], a unit-testing framework; and

Twisted is available under the [http://www.opensource.org/licenses/mit-license.php MIT] Free Software licence. 

= Download =

See the [wiki:Downloads] page.

= Documentation =

[http://twistedmatrix.com/projects/core/documentation/ All sorts of documentation] is available for Twisted Core, including a complete [http://twistedmatrix.com/documents/current/api/ API reference] of the full [wiki:TwistedProject Twisted] distribution.

= Contact = 

Subscribe to the [http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python twisted-python] mailing list or visit the #twisted channel on irc.freenode.net to ask questions.

[http://twistedmatrix.com/trac/newticket?type=defect&component=core Report a bug] or [http://twistedmatrix.com/trac/newticket?type=enhancement&component=core request a feature] using the issue tracker (registration required), or browse [query:status=new|assigned|reopened&component=core Twisted Core tickets].