Twisted Documentation: Twisted Glossary

adaptee: An object that has been adapted, also called original. See Adapter.
Adapter: An object whose sole purpose is to implement an Interface for another object. See Interfaces and Adapters.
Application: A twisted.application.service.Application. There are HOWTOs on creating and manipulating them as a system-administrator, as well as using them in your code.
Avatar: (from Twisted Cred) business logic for specific user. For example, in PB these are perspectives, in pop3 these are mailboxes, and so on.
Banana: The low-level data marshalling layer of Twisted Spread. See twisted.spread.banana.
Broker: A twisted.spread.pb.Broker, the object request broker for Twisted Spread.
cache: A way to store data in readily accessible place for later reuse. Caching data is often done because the data is expensive to produce or access. Caching data risks being stale, or out of sync with the original data.
component: A special kind of (persistent) Adapter that works with a twisted.python.components.Componentized. See also Interfaces and Adapters.
Componentized: A Componentized object is a collection of information, separated into domain-specific or role-specific instances, that all stick together and refer to each other. Each object is an Adapter, which, in the context of Componentized, we call components. See also Interfaces and Adapters.
conch: Twisted's SSH implementation.
Connector: Object used to interface between client connections and protocols, usually used with a twisted.internet.protocol.ClientFactory to give you control over how a client connection reconnects. See twisted.internet.interfaces.IConnector and Writing Clients.
Consumer: An object that consumes data from a Producer. See twisted.internet.interfaces.IConsumer.
Cred: Twisted's authentication API, twisted.cred. See Introduction to Twisted Cred and Twisted Cred usage.
credentials: A username/password, public key, or some other information used for authentication.
credential checker: Where authentication actually happens. See ICredentialChecker.
CVSToys: A nifty set of tools for CVS, available at http://twistedmatrix.com/users/acapnotic/wares/code/CVSToys/.
Deferred: A instance of twisted.internet.defer.Deferred, an abstraction for handling chains of callbacks and error handlers (errbacks). See the Deferring Execution HOWTO.
Enterprise: Twisted's RDBMS support. It contains twisted.enterprise.adbapi for asynchronous access to any standard DB-API 2.0 module, and twisted.enterprise.row, a Relational Object Wrapper. See Introduction to Twisted Enterprise and Twisted Enterprise Row Objects for more details.
errback: A callback attached to a Deferred with .addErrback to handle errors.
Factory: In general, an object that constructs other objects. In Twisted, a Factory usually refers to a twisted.internet.protocol.Factory, which constructs Protocol instances for incoming or outgoing connections. See Writing Servers and Writing Clients.
Failure: Basically, an asynchronous exception that contains traceback information; these are used for passing errors through asynchronous callbacks.
im, t-im: Abbreviation of (Twisted) Instance Messenger.
Instance Messenger: Instance Messenger is a multi-protocol chat program that comes with Twisted. It can communicate via TOC with the AOL servers, via IRC, as well as via PB with Twisted Words. See twisted.im.
Interface: A class that defines and documents methods that a class conforming to that interface needs to have. A collection of core twisted.internet interfaces can be found in twisted.internet.interfaces. See also Interfaces and Adapters.
Jelly: The serialization layer for Twisted Spread, although it can be used seperately from Twisted Spread as well. It is similar in purpose to Python's standard pickle module, but is more network-friendly, and depends on a separate marshaller (Banana, in most cases). See twisted.spread.jelly.
Lore: Lore is Twisted's documentation system. The source format is a subset of XHTML, and output formats include HTML and LaTeX.
Manhole: A debugging/administration interface to a Twisted application.
Microdom: A partial DOM implementation using SUX. It is simple and pythonic, rather than strictly standards-compliant. See twisted.web.microdom.
Names: Twisted's DNS server, found in twisted.names.
Nevow: The successor to Woven, a web framework available at nevow.com.
PB: Abbreviation of Perspective Broker.
Perspective Broker: The high-level object layer of Twisted Spread, implementing semantics for method calling and object copying, caching, and referencing. See twisted.spread.pb.
Portal: Glues credential checkers and realms together.
Producer: An object that generates data a chunk at a time, usually to be processed by a Consumer. See twisted.internet.interfaces.IProducer.
Protocol: In general each network connection has its own Protocol instance to manage connection-specific state. There is a collection of standard protocol implementations in twisted.protocols. See also Writing Servers and Writing Clients.
PSU: There is no PSU.
Reactor: The core event-loop of a Twisted application. See Reactor Basics.
Reality: See Twisted Reality
realm: (in Twisted Cred) stores avatars and perhaps general business logic. See IRealm.
Resource: A twisted.web.resource.Resource, which are served by Twisted Web. Resources can be as simple as a static file on disk, or they can have dynamically generated content.
ROW: Relational Object Wrapper, an object-oriented interface to a relational database. See Twisted Enterprise Row Objects.
Service: A twisted.application.service.Service. See Application howto for a description of how they relate to Applications.
Spread: Twisted Spread is Twisted's remote-object suite. It consists of three layers: Perspective Broker, Jelly and Banana. See Writing Applications with Perspective Broker.
SUX: Small Uncomplicated XML, Twisted's simple XML parser written in pure Python. See twisted.protocols.sux.
TAP: Twisted Application Pickle, or simply just a Twisted APplication. A serialised application that created with mktap and runnable by twistd. See Using the Utilities.
Trial: twisted.trial, Twisted's unit-testing framework, modelled after pyunit. See also Writing tests for Twisted code.
Twisted Matrix Laboratories: The team behind Twisted. http://twistedmatrix.com/.
Twisted Reality: In days of old, the Twisted Reality multiplayer text-based interactive-fiction system was the main focus of Twisted Matrix Labs; Twisted, the general networking framework, grew out of Reality's need for better network functionality. Twisted Reality has since been broken off into a separate project.
usage: The twisted.python.usage module, a replacement for the standard getopt module for parsing command-lines which is much easier to work with. See Parsing command-lines.
Words: Twisted Words is a multi-protocol chat server that uses the Perspective Broker protocol as its native communication style. See twisted.words.
Woven: Web Object Visualization Environment. A deprecated web templating system based on XML and the Model-View-Controller design pattern. This has been deprecated in favor of Nevow.