Twisted Glossary
Adapter-
An object which wraps another object to conform to a particular
Interface, when some code requests the interface
from an object. See
twisted.python.components.
Application-
A
twisted.internet.app.Application. There are
HOWTOs on creating and manipulating them as a
system-administrator, as well as using them in
your code.
Authorizer-
An object responsible for managing Identities. See
twisted.cred.authorizer.
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.
- COIL
-
COnfiguration ILlumination
. It is a (stagnant and
incomplete) end-user interface for configuring Twisted applications.
See twisted.coil.
- component
-
A special kind of (persistent)
Adapter that works with a twisted.python.components.Componentized.
Componentized-
An object that can hold a number of persistent
Adapters, which we call
components
.
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.
- 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.
Identity-
A Cred object that represents a single user with a
username and a password of some sort.
- 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.
- 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
twisted.lore is Twisted's documentation system.
The source format is a subset of XHTML, and output formats include HTML and
LaTeX. See generatelore(1) and
the Twisted Documentation Standard.- Manhole
-
A debugging/administration interface to a Twisted application. See Debugging with Manhole.
- Marmalade
-
An XML-based serialisation module. See
twisted.persisted.marmalade.
- 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.
- PB
-
Abbreviation of
Perspective
Broker
.
Perspective-
A Cred object; an Identity's
perspective
(or view
) onto a Service. There may be many
Perspectives associated with an Identity, and an Identity may have multiple
Perspectives onto the same Service.
- 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.
- 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
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.cred.service.Service. See Twisted Cred usage for a description of how they
relate to Applications,
Perspectives and
Identities.
- 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.
- Sturdy
- A persistent reference manager for PB.
See
twisted.spread.sturdy.
- 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.
- Tendril
- A bridge between Twisted Words and IRC. See
twisted.words.tendril.
- Trial
twisted.trial, Twisted's unit-testing framework,
modelled after pyunit.- 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 web templating system based on XML and the Model-View-Controller design
pattern. See Developing Componentized Applications using
Woven.
- Zoot
- Twisted's Gnutella implementation (currently very incomplete). See
twisted.zoot.