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librelp is an easy to use library for the RELP protocol. RELP in turn provides reliable event logging over the network (and consequently RELP stands for Reliable Event Logging Protocol). RELP (and hence) librelp assures that no message is lost, not even when connections break and a peer becomes unavailable. The current version of RELP has a minimal window of opportunity for message duplication after a session has been broken due to network problems. In this case, a few messages may be duplicated (a problem that also exists with plain TCP syslog). Future versions of RELP will address this shortcoming.

A patch to Perl 5.005_55 by the author implements a core API for weak references. This module is a Perl-level interface to that API, allowing weak references to be created in Perl. A weak reference is just like an ordinary Perl reference except that it isn't included in the reference count of the thing referred to. This means that once all references to a particular piece of data are weak, the piece of data is freed and all the weak references are set to undef. This is particularly useful for implementing circular data structures without memory leaks or caches of objects.

This is an XML parser based on PHPs built-in xml extension. It supports two basic modes of operation: "func" and "event". In "func" mode, it will look for a function named after each element (xmltag_ELEMENT for start tags and xmltag_ELEMENT_ for end tags), and in "event" mode it uses a set of generic callbacks. Since version 1.2.0 there's a new XML_Parser_Simple class that makes parsing of most XML documents easier, by automatically providing a stack for the elements. Furthermore its now possible to split the parser from the handler object, so you do not have to extend XML_Parser anymore in order to parse a document with it.

Poslib is a portable C++ DNS library, a part of Posadis project. It consists of two parts: a client library and a server library. Using the client library, you can simply develop applications that use the Domain Name System (DNS). It includes many functions for resolving, domain-name manipulation and Resource Record (RR) creation. The server library, based on the client core, can be used to develop DNS servers. By implementing a query entry-point function using the Poslib library of functions, you can easily create DNS servers, without worrying about low-level details such as DNS message compilation, domain-name compression and UDP/TCP transmission.

A small utility package that depends on tools too recent for Twisted (like datetime in python2.4) but performs generic enough functions that it can be used in projects that don't want to share Divmod's other projects' large footprint. Currently included: * A powerful date/time formatting and import/export class (ExtimeDotTime), for exchanging date and time information between all Python's various ways to interpret objects as times or time deltas. * Tools for managing concurrent asynchronous processes within Twisted. * A metaclass which helps you define classes with explicit states. * A featureful Version class. * A formal system for application of monkey-patches.

The Traits project is at the center of all Enthought Tool Suite development and has changed the mental model used at Enthought for programming in the already extremely efficient Python programming language. The Traits project allows Python programmers to use a special kind of type definition called a trait, which gives object attributes some additional characteristics, such as Initialization, Validation, Delegation, Notification and Visualization. A class can freely mix trait-based attributes with normal Python attributes, or can opt to allow the use of only a fixed or open set of trait attributes within the class. Trait attributes defined by a classs are automatically inherited by any subclass derived from the class.

This package builds on the object adaptation protocol presented in PEP 246 to make it easier for component authors, framework suppliers, and other developers to: * Specify what behavior a component requires or provides * Specify how to adapt the interface provided by one component to that required by another * Specify how to adapt objects of a particular type or class (even built-in types) to a particular required interface * Automatically adapt a supplied object to a required interface, and * Do all of the above, even when the components or frameworks involved were not written to take advantage of this package, and even if the frameworks have different mechanisms for defining interfaces.

Pytools is a big bag of things that are "missing" from the Python standard library. This is mainly a dependency of my other software packages, and is probably of little interest to you unless you use those. If you're curious nonetheless, here's what's on offer: - A ton of small tool functions such as len_iterable, argmin, tuple generation, permutation generation, ASCII table pretty printing, GvR's mokeypatch_xxx() hack, the elusive flatten, and much more. - Michele Simionato's decorator module. - A time-series logging module, pytools.log. - Batch job submission, pytools.batchjob. - A lexer, pytools.lex.

From the README: Twisted is an event-based framework for Internet applications. It includes a web server, a telnet server, a chat server, a news server, a generic client and server for remote object access, and APIs for creating new protocols and services. Twisted supports integration of the Tk, GTK+, Qt or wxPython event loop with its main event loop. The Win32 event loop is also supported, as is basic support for running servers on top of Jython. Twisted is based on an unconventional and somewhat Twisted design philosophy.

From the README: Twisted is an event-based framework for Internet applications. It includes a web server, a telnet server, a chat server, a news server, a generic client and server for remote object access, and APIs for creating new protocols and services. Twisted supports integration of the Tk, GTK+, Qt or wxPython event loop with its main event loop. The Win32 event loop is also supported, as is basic support for running servers on top of Jython. Twisted is based on an unconventional and somewhat Twisted design philosophy.