Mailman 3 October 2005 - Python-announce-list

PyDev 0.9.8.2 released
by Fabio Zadrozny 16 Feb '06

16 Feb '06

Hi All, PyDev - Python IDE (Python Development Enviroment for Eclipse) version 0.9.8.2 has been released. Check the homepage (http://pydev.sourceforge.net/) for more details. Details for Release: 0.9.8.2 Major highlights: ------------------------ * Content assistants reviewed (and better documented on the homepage -- I really reccomend checking it) * Timeout parsing options added (this is available in the builder preferences page) * Auto-dedent added Others that are new and noteworthy: ----------------------------------------------------- * .pyc is removed when the corresponding .py file is removed. * Debugger has been changed so that it becomes faster (still not as fast as I would like, but still... faster) -- looking for people with expertise on this to help me, as I'm kind of lost on which should be the 'recommended' way to speed it more. * Some escaped quotes problems fixed when formatting code * Navigation with Ctrl+Shift+ (up or down) has been slightly improved, so that it goes to the start or the end of the file when no other class or method declaration is found * Other bug-fixes (as ususal) Cheers, Fabio -- Fabio Zadrozny ------------------------------------------------------ Software Developer ESSS - Engineering Simulation and Scientific Software www.esss.com.br PyDev - Python Development Enviroment for Eclipse pydev.sf.net pydev.blogspot.com

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[ANNOUNCE] gmpy 1.0 alpha released
by Alex Martelli 12 Nov '05

12 Nov '05

See http://gmpy.sourceforge.net/ for details. What is it: a wrapper for the GMP library, to provide multi-precision arithmetic for Python. Multi-precision floats, and unbounded-precision rationals, are not present in stock Python; multi-precision integers ('long') are, but gmpy's version of multi-precision integers is faster for some operations (NOT all -- used to be, but Python 2.3 did serious enhancements to some operations on longs) and provides lots of nifty pre-packaged additional functions. Minor changes and bug-fixes since the latest 0.9 pre-alpha; support for Python 2.3. The Windows binary release is now for Python 2.3 _only_ (if you're stuck with Python 2.2 on Windows, you can keep using gmpy 0.9 pre-alpha and not really suffer from that). Known bug on Windows: the scan0 and scan1 functions appear broken (perhaps related to the lack of a GMP 4.0 library for Windows -- haven't found one around yet). Alex

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OfflineIMAP needs a good home
by John Goerzen 31 Oct '05

31 Oct '05

Hi, I am the author of OfflineIMAP, a bidirectional IMAP mail syncing tool for people that wish to read their IMAP mail without needing to be connected to an IMAP server. It is basically "done", having fulfilled its original purpose. OfflineIMAP is functional, multi-threaded, and works well for me. There are some new features people would like to see -- hooks for things to do to a message as it's being downloaded, some tweaks to the IMAP protocol handler, etc. I have found that I don't have the time or interest to work on OfflineIMAP anymore, and I'm wondering if there is anyone out in the Python community that would be interested in taking over this code. OfflineIMAP is GPL'd and written 100% in Python. You can get it with: darcs get http://darcs.complete.org/offlineimap Or download tarballs from http://quux.org/devel/offlineimap. If you're interested, please drop me a line or post to the OfflineIMAP mailing list (see lists.complete.org for info) -- John

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PyCon: proposal deadline is today
by A.M. Kuchling 31 Oct '05

31 Oct '05

Today is your last chance to get in your PyCon 2006 submissions. (If you can't finish an outline today, you can still submit a summary and provide the outline in a few days.) Conference site: http://www.python.org/pycon/2006/ Call for Proposals: http://www.python.org/pycon/2006/cfp Submission site: http://submit.python.org A.M. Kuchling Chair, PyCon 2006 amk(a)amk.ca

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ANN: Karrigell-2.2 beta released
by Pierre Quentel 31 Oct '05

31 Oct '05

A new version of Karrigell has just been released : http://karrigell.sourceforge.net Karrigell is a full-featured Pythonic web framework, with an almost flat learning curve. You can start to program in just three steps : download the package ; unzip it ; run the script Karrigell.py. That's all. A built-in web server and the KirbyBase database are provided and should be enough for small to medium applications ; you can also run it behind Apache or Xitami and use any database you like This version brings many important new features : * the built-in web server has been rewritten, it is now fully asynchronous and is more stable than the previous one * support of virtual hosts : tha ability to serve different host names on the same server. When used behind Apache, this allows serving multiple domain names with the same instance of the built-in server * the default database engine is now KirbyBase, a pure Python flat-file database (http://www.netpromi.com/kirbybase.html). It replaces gadfly, the SQL engine which is no longer maintained and requires Python2.2 ; the dbStorage modules have been removed. If you need them for backwards compatibility you can download an old version of Karrigell and copy the directories gadlfy-1.0.0 and databases * refactoring of the Template module : the execution of scripts is now passed to modules mod_(extension).py. You can write your own modules to manage specific extensions * for instance, a module mod_tmpl.py is included to bring a first level of Cheetah support ; Cheetah is a well-known templating engine, also included in the Karrigell distribution * a new exception SCRIPT_ERROR has been added : raise SCRIPT_ERROR,msg prints the message msg and stops the script execution * new formatting rules in the wiki demo + bug fixes Because of the many changes, this is a beta version. Testing of and feedback on the new features is very much appreciated ! Cheers, Pierre

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itools 0.11.0 released
by "J. David Ibáñez" 30 Oct '05

30 Oct '05

What is it? itools is a Python library, it groups a number of packages into a single meta-package for easier development and deployment. The packages included are: itools.catalog itools.datatypes itools.gettext itools.handlers itools.html itools.i18n itools.ical itools.resources itools.rss itools.schemas itools.tmx itools.uri itools.web itools.workflow itools.xhtml itools.xliff itools.xml What's new? URI - Add "resolve2" to the URI API (just uses "Path.resolve2" instead of "Path.resolve"). - Fix path comparison (#30). - Many more unit tests (#30). By Hervé Cauwelier. Schemas - Improve programming interface: register_schema, get_schema, get_schema_by_uri, get_datatype and get_datatype_by_uri. Resources - New method "traverse2" (a more powerful version of "traverse"). - Implement "is_locked" for Zope 2 resources. By Hervé Cauwelier. Handlers - Drop "to_unicode" from the API, now it is only 'to_str'. XML - New parser, a little faster and a little simpler (#52). STL - Improve API, now it is "stl(handler, namespace)". - Returns a byte string instead of a unicode string. XHTML - Add function "set_template_prefix" to the API, it modifies relative links (useful for example to move a document from one place on a tree to another). HTML - Update parser to be in sync with the XML parser. Catalog - Now it does not check for callable fields. - Keyword fields correctly index frozenset objects. Web - Use HTTP_X_FORWARDED_HOST (instead of our own REAL_HOST). - Deserialize and serialize cookies (uses itools.schemas). - Add "context.redirect" to the API. To be used instead of the lower level "response.redirect". It makes sure redirects are absolute (#62). - Add "context.has_cookie" to the API. - Fix PUT, LOCK and UNLOCK for Zope 2. - Add the response header fields 'Date', 'Connection' and 'Server'. Documentation - Update chapter about STL. Packaging - New "setup.py" script optimized for Python 2.4 (#105). By Hervé Cauwelier. Links - Download and Documentation, http://www.ikaaro.org/itools - Mailing list, http://in-girum.net/mailman/listinfo/ikaaro - Bug Tracker, http://in-girum.net/cgi-bin/bugzilla/index.cgi -- J. David Ibáñez Itaapy <http://www.itaapy.com> Tel +33 (0)1 42 23 67 45 9 rue Darwin, 75018 Paris Fax +33 (0)1 53 28 27 88

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[ANN] Release 0.51 of Task Coach
by Frank Niessink 30 Oct '05

30 Oct '05

Hi all, I'm pleased to announce release 0.51 of Task Coach. New in this release: Bugs fixed: * Hitting enter in the find dialog didn't work on Linux. * Old TaskCoach.ini files with a language setting of 'en' instead of 'en_US' or 'en_GB' would cause an exception. Patch provided by Nirendra Maharaj. Features added: * Escape closes pop-up windows. Patch provided by Markus Meyer. * The task of an effort record can be changed. * Effort records can be cut, copied, and pasted. What is Task Coach? Task Coach is a simple task manager that allows for hierarchical tasks, i.e. tasks in tasks. Task Coach is open source (GPL) and is developed using Python and wxPython. You can download Task Coach from: http://taskcoach.niessink.com https://sourceforge.net/projects/taskcoach/ A binary installer is available for Windows XP, in addition to the source distribution. Note that Task Coach is alpha software, meaning that it is wise to back up your task file regularly, and especially when upgrading to a new release. Cheers, Frank

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ANN: Pyarie, modular modeling system
by John Metta 29 Oct '05

29 Oct '05

I'd like to announce Pyarie, a modular modeling environment. Pyarie provides an environment for defining and solving systems of ordinary differential equations. It was developed for my use in hydrologic and ecological modeling, but is being used to model both chemical and aeronautical systems amoung others. Pyarie is defined to allow modeling in a programming environment with minimal initial programming skill that the user can enter equations into a class template and optionally define look-up tables and other functions for each state variable. Solver classes are provided and optimizers are being implemented now. Basically, it provides a way for non-programmers to create and run models without using "black box" modeling environments. The system is highly extendable and can be used as either a functional environment for the non-programmer, or similiarly to a Python module for the programmer. Pyarie is housed on SourceForge, with a homepage at http://pyarie.wikisophia.org The Pyarie-users mailing list is live for help and discussion. Cheers, -John Metta Bioresource Engineering and Geography Oregon State University

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ANN: Amara XML Toolkit 1.1.6
by Uche Ogbuji 28 Oct '05

28 Oct '05

http://uche.ogbuji.net/tech/4suite/amara ftp://ftp.4suite.org/pub/Amara/ Changes since Amara 1.0: * Use Saxlette over Python stdlib SAX * Move from threads to generators for pushdom/pushbind * Simplify API. Make most key functions available from the amara module import amara amara.parse amara.pushbind amara.pushdom amara.create_document * Change node.xml_remove_child to take the child object to be removed * Add node.xml_remove_child_at which takes the index (as node.xml_remove_child used to) * Big performance improvements * Add xml_parse_fragment * Add quick reference * Add support for PIs and comments in XPath * Allow custom bindings for processing instructions (binder.set_pi_binding_class) * Upate date/time handling in type inferencer to use Gustavo Niemeyer's dateutil, if available ( http://labix.org/python-dateutil ) * Packaging fixes * Bug fixes and documentation improvements Amara XML Toolkit is a collection of Python tools for XML processing-- not just tools that happen to be written in Python, but tools built from the ground up to use Python idioms and take advantage of the many advantages of Python. Amara builds on 4Suite [http://4Suite.org], but whereas 4Suite focuses more on literal implementation of XML standards in Python, Amara focuses on Pythonic idiom. It provides tools you can trust to conform with XML standards without losing the familiar Python feel. The components of Amara are: * Bindery: data binding tool (a very Pythonic XML API) * Scimitar: implementation of the ISO Schematron schema language for XML; converts Schematron files to Python scripts * domtools: set of tools to augment Python DOMs * saxtools: set of tools to make SAX easier to use in Python * Flextyper: user-defined datatypes in Python for XML processing There's a lot in Amara, but here are highlights: Amara Bindery: XML as easy as py -------------------------------- Bindery turns an XML document into a tree of Python objects corresponding to the vocabulary used in the XML document, for maximum clarity. For example, the document <monty> <python spam="eggs">What do you mean "bleh"</python> <python ministry="abuse">But I was looking for argument</python> </monty> Becomes a data structure such that you can write binding.monty.python.spam In order to get the value "eggs" or binding.monty.python[1] In order to get the value "But I was looking for argument". There are other such tools for Python, and what makes Anobind unique is that it's driven by a very declarative rules-based system for binding XML to the Python data. You can register rules that are triggered by XPattern expressions specialized binding behavior. It includes XPath support and supports mutation. Bindery is very efficient, using SAX to generate bindings. Scimitar: Schematron for Pytthon -------------------------------- Merged in from a separate project, Scimitar is an implementation of ISO Schematron that compiles a Schematron schema into a Python validator script. You typically use scimitar in two phases. Say you have a schematron schema schema1.stron and you want to validate multiple XML files against it, instance1.xml, instance2.xml, instance3.xml. First you run schema1.stron through the scimitar compiler script, scimitar.py: scimitar.py schema1.stron The generated file, schema1.py, can be used to validate XML instances: python schema1.py instance1.xml Which emits a validation report. Amara DOM Tools: giving DOM a more Pythonic face ------------------------------------------------ DOM came from the Java world, hardly the most Pythonic API possible. Some DOM-like implementations such as 4Suite's Domlettes mix in some Pythonic idiom. Amara DOM Tools goes even further. Amara DOM Tools feature pushdom, similar to xml.dom.pulldom, but easier to use. It also includes Python generator-based tools for DOM processing, and a function to return an XPath location for any DOM node. Amara SAX Tools: SAX without the brain explosion ------------------------------------------------ Tenorsax (amara.saxtools.tenorsax) is a framework for "linerarizing" SAX logic so that it flows more naturally, and needs a lot less state machine wizardry. License ------- Amara is open source, provided under the 4Suite variant of the Apache license. See the file COPYING for details. Installation ------------ Amara 1.1.6 requires Python 2.4 or more recent. If you do not have 4Suite XML 1.0b2, grab the Amara-allinone package. If you already have 4Suite XML installed, grab the stand along Amara package. In either case, unpack to a convenient location and run: python setup.py install -- Uche Ogbuji Fourthought, Inc. http://uche.ogbuji.net http://fourthought.com http://copia.ogbuji.net http://4Suite.org Articles: http://uche.ogbuji.net/tech/publications/

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Flightdeck-UI Online Source Code Available
by George Belotsky 28 Oct '05

28 Oct '05

The Flightdeck-UI Online source code is now available under the GPL version 2. This is an advanced beta; few changes (if any) are anticipated before the stable release. The distribution includes detailed installation instructions and two example control panels. The installation is designed to be a very simple process -- please contact the author if you have questions. See the homepage: "http://www.openlight.com/fdui" or download directly from: "http://www.openlight.com/fdui/downloads/fdui-online-0.3.9.tar.gz". What is Flightdeck-UI --------------------- The goal of the Flightdeck-UI project is to apply ideas from aircraft instrumentation design to general purpose user interfaces. The new web service version (Flightdeck-UI Online) retains the plug-in architecture of previous releases. Each plugin, however, may now be monitored at different sampling rates. Multiple data sources (hosts on the Internet, embedded devices, etc.) can be tracked simultaneously. Also, virtually any Unix command that you enter from the shell can be automatically executed by Flightdeck-UI Online, and the results displayed by the system's virtual instruments. Although the web service requires a Flash front end (developed using only the MTASC open source ActionScript compiler; see http://www.mtasc.org/) Flightdeck-UI Online is still primarily written in Python. The author welcomes any ideas and suggestions: please email them directly to "python(a)openlight.com". Best Wishes, George Belotsky.

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