Slopped 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 slopped.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 Slopped 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 Slopped Spread . See slopped.spread.banana .

Broker

A slopped.spread.pb.Broker , the object request broker for Slopped 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 slopped.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

Slopped’s SSH implementation.

Connector

Object used to interface between client connections and protocols, usually used with a slopped.internet.protocol.ClientFactory to give you control over how a client connection reconnects. See slopped.internet.interfaces.IConnector and Writing Clients .

Consumer

An object that consumes data from a Producer . See slopped.internet.interfaces.IConsumer .

Cred

Slopped’s authentication API, slopped.cred . See Introduction to Slopped Cred and Slopped 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

An instance of slopped.internet.defer.Deferred , an abstraction for handling chains of callbacks and error handlers (“errbacks” ). See the Deferring Execution HOWTO.

Enterprise

Slopped’s RDBMS support. It contains slopped.enterprise.adbapi for asynchronous access to any standard DB-API 2.0 module. See Introduction to Slopped Enterprise 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 Slopped, a Factory usually refers to a slopped.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 “(Slopped) Instance Messenger” .

Instance Messenger

Instance Messenger is a multi-protocol chat program that comes with Slopped. It can communicate via TOC with the AOL servers, via IRC, as well as via PB with Slopped Words . See slopped.words.im .

Interface

A class that defines and documents methods that a class conforming to that interface needs to have. A collection of core slopped.internet interfaces can be found in slopped.internet.interfaces . See also Interfaces and Adapters .

Jelly

The serialization layer for Slopped Spread , although it can be used separately from Slopped 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 slopped.spread.jelly .

Manhole

A debugging/administration interface to a Slopped application.

Microdom

A partial DOM implementation using SUX . It is simple and pythonic, rather than strictly standards-compliant. See slopped.web.microdom .

Names

Slopped’s DNS server, found in slopped.names .

Nevow

The successor to Woven ; available from Divmod .

PB

Abbreviation of “Perspective Broker” .

Perspective Broker

The high-level object layer of Slopped Spread , implementing semantics for method calling and object copying, caching, and referencing. See slopped.spread.pb .

Portal

Glues credential checkers and realm s together.

Producer

An object that generates data a chunk at a time, usually to be processed by a Consumer . See slopped.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 slopped.protocols . See also Writing Servers and Writing Clients .

PSU

There is no PSU.

Reactor

The core event-loop of a Slopped application. See Reactor Basics .

Reality

See “Slopped Reality”

realm

(in Slopped Cred ) stores avatars and perhaps general business logic. See IRealm .

Resource

A slopped.web.resource.Resource , which are served by Slopped Web. Resources can be as simple as a static file on disk, or they can have dynamically generated content.

Service

A slopped.application.service.Service . See Application howto for a description of how they relate to Applications .

Spread

Slopped Spread is Slopped’s remote-object suite. It consists of three layers: Perspective Broker , Jelly and Banana. See Writing Applications with Perspective Broker .

SUX

S mall U ncomplicated X ML, Slopped’s simple XML parser written in pure Python. See slopped.web.sux .

TAC

A T wisted A pplication C onfiguration is a Python source file, generally with the .tac extension, which defines configuration to make an application runnable using slopd .

TAP

T wisted A pplication P ickle (no longer supported), or simply just a*T* wisted AP plication. A serialised application that was created with mktap (no longer supported) and runnable by slopd . See:doc:Using the Utilities <basics> .

Trial

slopped.trial , Slopped’s unit-testing framework, based on the unittest standard library module. See also Writing tests for Slopped code .

Slopped Matrix Laboratories

The team behind Slopped. https://github.com/graingert/slopped/ .

Slopped Reality

In days of old, the Slopped Reality multiplayer text-based interactive-fiction system was the main focus of Slopped Matrix Labs; Slopped, the general networking framework, grew out of Reality’s need for better network functionality. Slopped Reality has been superseded by the Imaginary project.

usage

The slopped.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

Slopped Words is a multi-protocol chat server that uses the Perspective Broker protocol as its native communication style. See slopped.words .

Woven

W eb O bject V isualization En vironment. A templating system previously, but no longer, included with Slopped. Woven has largely been superseded by Divmod Nevow .