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) Adapterthat works with atwisted.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 callcomponents .  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.ClientFactoryto give you control over how a client connection reconnects.  Seetwisted.internet.interfaces.IConnectorand 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 
  ICredentialsChecker.
- CVSToys
- A nifty set of tools for CVS, available at 
http://twistedmatrix.com/users/acapnotic/wares/code/CVSToys/.
- Daemon
- 
  A background process that does a job or handles client requests.
  Daemon is a Unix term; service is the Windows equivalent.
- 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.adbapifor asynchronous access to any
  standard DB-API 2.0 module. See Introduction to
  Twisted Enterprise for more details.
- errback
- 
  A callback attached to a Deferred with
  .addErrbackto 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
- 
  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.words.im.
- Interface
- 
  A class that defines and documents methods that a class conforming to that
  interface needs to have.  A collection of core twisted.internetinterfaces can
  be found intwisted.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 picklemodule, but is more
  network-friendly, and depends on a separate marshaller (Banana, in most cases).  Seetwisted.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; available from Divmod.
- 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.
- 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.web.sux.
- TAC
- A Twisted Application Configuration is a Python
source file, generally with the .tac extension, which defines
configuration to make an application runnable using twistd.
- TAP
- Twisted Application Pickle (no longer supported), or simply just a
Twisted APplication.  A serialised application that was created
with mktap(no longer supported) and runnable bytwistd.  See
Using the Utilities.
- Trial
- twisted.trial, Twisted's unit-testing framework,
based on the- unitteststandard library module.  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 been superseded by the Imaginary project.
- usage
- The twisted.python.usagemodule, a replacement for
the standardgetoptmodule 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 templating system previously, but no longer, included with Twisted.  Woven
has largely been superceded by 
Divmod Nevow.
 
    Index
    Version: 13.2.0