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
-
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 (deprecated), or simply just a
Twisted APplication. A serialised application that was 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.
Index
Version: 8.2.0