Mailman 3 April 2005 - Python-announce-list

[ANN] QaTeX 0.1.1
by Jonathan Fine April 18, 2005

April 18, 2005

I'm pleased to announce the release of version 0.1.1 of QaTeX. Here is a brief description of the package. (La)TeX macro programming is hard. Python is a powerful and easy to use scripting language. QaTeX allows Python modules to be used instead of (La)TeX style files. With QaTeX (pronounced `kwa-tech') TeX asks Questions and Python provides Answers. This release provides proof-of-concept. It is known to run under Linux and Mac OS/X. QaTeX is not yet secure, so please don't use it with untrusted documents. Another problem is that QaTeX does not yet run under Windows. QaTeX is released under the GPL. This release, and further information, is available via the project home page: http://qatex.sourceforge.net -- Jonathan

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CFP: DLS05: ACM Dynamic Languages Symposium
by Roel Wuyts April 18, 2005

April 18, 2005

CALL FOR PAPERS FOR THE ACM Dynamic Languages Symposium 2005 October 18, 2005 San Diego, California (co-located with OOPSLA'05) URL: http://decomp.ulb.ac.be:8082/events/dls05/ ----------- Abstract ----------- In industry, static languages (such as Java, C++ and C#) are much more widely used than their dynamic counterparts (like CLOS, Python, Self, Perl, php or Smalltalk). So it appears as though dynamic language concepts were forgotten and lost the race. But this is not the case. Java and C#, the latest mainstream static languages, popularized to a certain extent dynamic language features such as garbage collection, portability and (limited forms of) reflection. In the near future, we expect this dynamicity to increase even further. E.g., it is getting clearer year after year that pervasive computing is becoming the rule and that concepts such as meta programming, reflection, mobility, dynamic reconfigurability and distribution are becoming increasingly popular. All of these features are the domain of dynamic languages, and hence it is only logical that more dynamic language concepts have to be taken up by static languages, or that dynamic languages can make a breakthrough. Currently, the dynamic language community is fragmented, split over a multitude of paradigms (from functional over logic to object-oriented), languages and syntaxes. This fragmentation severely hinders research as well as acceptance, and results in either language wars or, even worse, language ignorance. The goal of this symposium is to provide a highly visible, international forum for researchers working on dynamic features and languages. We explicitly invite submissions from all kinds of paradigms (object-oriented, functional, logic, ...), as can be seen from the structure of the program committee. Areas of interests include, but are not limited to: - closures - delegation - actors, active objects - constraint systems - mixins and traits - reflection and meta-programming - language symbiosis and multi-paradigm languages - experience reports on successful application of dynamic languages Accepted Papers will be published in the ACM Digital Library. ------------------------------- Submission Guidelines ------------------------------- Papers will need to be submitted using an online tracking system, of which the URL will be given later. All papers must be submitted electronically in PDF format (or PostScript, if you do not have access to PDF-producing programs, but this is not recommended). Submissions, as well as final versions, must be formatted to conform to ACM Proceedings requirements: Nine point font on ten point baseline, two columns per page, each column 3.33 inches wide by 9 inches tall, with a column gutter of 0.33 inches, etc. See the ACM Proceedings Guidelines. You can save preparation time by using one of the templates from that page. Note that MS Word documents must be converted to PDF before being submitted. ---------------------- Important Dates ---------------------- - Deadline for receipt of submissions: June 24th 2005 - Notification of acceptance or rejection: August 5th 2005 - Final version for the proceedings: To be announced later --------------------------- Program Committee --------------------------- - Gilad Bracha - Wolfgang De Meuter - Stephane Ducasse - Gopal Gupta - Robert Hirschfeld - Dan Ingalls - Yukihiro Matsumoto - Mark Miller - Eliot Miranda - Philippe Mougin - Oscar Nierstrasz - Dave Thomas - David Ungar - Guido Van Rossum - Peter Van Roy - Jon L White (G) - Roel Wuyts (Chair) -- Roel Wuyts DeComp roel.wuyts(a)ulb.ac.be Université Libre de Bruxelles http://homepages.ulb.ac.be/~rowuyts/ Belgique Vice-President of the European Smalltalk Users Group: www.esug.org

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[ANN] Release 0.31 of Task Coach
by Frank Niessink April 17, 2005

April 17, 2005

Hi all, I am pleased to announce release 0.31 of Task Coach. Here is a list of the changes. Note: - Task Coach was migrated to Python 2.4.1 and wxPython 2.5.5.1. Added check to give friendly message if wxPython version is below the required version number. Bugs fixed: - A unittest.py bug that was fixed in Python 2.4 revealed a bug in test.py (1181714). - When searching for a task that is completed, while the 'show completed' switch is off, the search shows the path to the task (i.e. parent tasks), but not the matched task itself (1182528). - When searching for tasks in the tree view, composite tasks are expanded automatically to show the children that match the search string (1182528). - Columns were hidden by setting their width to 0, but that did not make them entirely invisible on some Linux platforms (1152566). - When editing a subtask, sometimes its branch would be collapsed (1179266). Features added: - In the task list and effort list the task column is automatically resized to take up the available space. - Added columns to the task list view for: budget, total budget, budget left, and total budget left. - Reorganized view menu, added extra task filters, added menu item to reset filters (1181762, 1178882, 1178780). - The subject is selected in the task editor so that replacing it is a bit easier (1180887). 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. Thanks, Frank

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ANN: Snakelets 1.39 (simple-to-use web app server with dynamic pages)
by Irmen de Jong April 17, 2005

April 17, 2005

I'm happy to say that Snakelets 1.39 is available. Snakelets is a very simple-to-use Python web application server. This project provides a built-in threaded web server (so you don't need to set up Apache or another web server), Ypages (HTML+Python language, similar to Java's JSPs) and Snakelets: code-centric page request handlers (similar to Java's Servlets). Snakelets is fully unicode compatible and it's possible to run it from a CD (read-only mode). It's released under the open-source MIT Software license. You can download from http://snakelets.sourceforge.net (go to the SF project site, and then the file section). Recent changes include: - Cleanups of a lot of html - index.sn (snakelet index page) support - session timeout page configurable - cross-webapp user authentication method configurable - works on Python 2.4.1 (contains workaround for codec.readline bug) - fixed possible session cookie issues - 'manage' webapp improvements, added vhost config page Note: you need to update your Plugin package too. The old versions won't run anymore. To start, edit the vhost config file (see docs) and then run the serv.py script, or the monitor.py script if you want to start it as a daemon (on Unix). Enjoy, --Irmen de Jong. P.S. if you want to see it in action, visit www.promozilla.nl (the site is all Dutch though)

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ANN: Veusz 0.5 - a scientific plotting package
by Jeremy Sanders April 17, 2005

April 17, 2005

Veusz 0.5 --------- Velvet Ember Under Sky Zenith ----------------------------- http://home.gna.org/veusz/ Veusz is Copyright (C) 2003-2005 Jeremy Sanders <jeremy(a)jeremysanders.net> Licenced under the GPL (version 2 or greater) Veusz is a scientific plotting package written in Python (currently 100% Python). It uses PyQt for display and user-interfaces, and numarray for handling the numeric data. Veusz is designed to produce publication-ready Postscript output. Veusz provides a GUI, command line and scripting interface (based on Python) to its plotting facilities. The plots are built using an object-based system to provide a consistent interface. Changes from 0.4: Installation: * distutils used to install the package. RPMS available. Plotting: * Different error bar styles (diamond, curve...) * "Matched" axes, with the same scale on each * Data can be linked from external files instead of embedded in document * Filled regions under/over functions or xy plots * Improved function clipping near edge of plot * Default values can be set for settings, which are remembered between sessions (e.g. blue points for xy3). * Rotated text labels * Improved fitting, giving results from chi2, etc.. UI: * Can move around widgets and delete them * Exception dump dialog to send bug reports * Improved import dialog help * Propagate settings between widgets * Window positions are saved between sessions Reading data: * Better error handling when reading data + Numerous bug fixes Features of package: * X-Y plots (with errorbars) * Stepped plots (for histograms) * Line plots * Function plots * Fitting functions to data * Stacked plots and arrays of plots * Plot keys * Plot labels * LaTeX-like formatting for text * EPS output * Simple data importing * Scripting interface * Save/Load plots To be done: * Contour plots * Images * UI improvements * Import filters (for qdp and other plotting packages, fits, csv) * Data manipulation * Python embedding interface (for embedding Veusz in other programs). [some of the external interface is complete] Requirements: Python (probably 2.3 or greater required) http://www.python.org/ Qt (free edition) http://www.trolltech.com/products/qt/ PyQt (SIP is required to be installed first) http://www.riverbankcomputing.co.uk/pyqt/ http://www.riverbankcomputing.co.uk/sip/ numarray http://www.stsci.edu/resources/software_hardware/numarray Microsoft Core Fonts (recommended) http://corefonts.sourceforge.net/ For documentation on using Veusz, see the "Documents" directory. The manual is in pdf, html and text format (generated from docbook). If you enjoy using Veusz, I would love to hear from you. Please join the mailing lists at https://gna.org/mail/?group=veusz to discuss new features or if you'd like to contribute code. The newest code can always be found in CVS. Cheers Jeremy

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omniORB 4.0.6 and omniORBpy 2.6 released
by Duncan Grisby April 16, 2005

April 16, 2005

I am pleased to announce the release of omniORB version 4.0.6 and omniORBpy version 2.6. omniORB is a robust, high performance CORBA implementation for C++; omniORBpy is a version for Python. These are new stable releases. They are mainly bugfix releases, with small new features. See the release notes for details. As usual, the releases can be downloaded from SourceForge: http://sourceforge.net/projects/omniorb/ omniORB's home page is http://omniorb.sourceforge.net/ Enjoy! Duncan. -- -- Duncan Grisby -- -- duncan(a)grisby.org -- -- http://www.grisby.org --

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twainmodule build for Python 2.4 Available
by Kevin Gill April 16, 2005

April 16, 2005

The twainmodule build for python 2.4 is now available. The project home page is at: http://twainmodule.sourceforge.net You can retrieve the binaries from: http://sourceforge.net/project/showfiles.php?group_id=46985 Kevin

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ANN: 4Suite 1.0b1
by Uche Ogbuji April 15, 2005

April 15, 2005

Today we release 4Suite 1.0 beta 1, now available from Sourceforge and ftp.4suite.org. Highlights of changes -- * Minor to huge performance increases throughout the core libraries: * Ft.Lib.Set implemented in C, resulting in faster evaluation of XPath expressions using '/', '//', and '|') * 40x speedup in startup time for Domlette parsing * Additional optimization of XPath expressions involving '/', '//', 'child::' and others * .docindex removed from Domlette nodes; they now compare to each other in document order (e.g., when in a list, .sort() can be called for document order). Resulting XPath/XSLT speedup * XSLT whitespace stripping optimized; xml:space handling fixed * XML string utilities now in module Ft.Xml.Lib.XmlString, implemented in C, as part of Domlette optimizations * Mini-SAX interface added to the Domlette Expat library, via Ft.Xml.Sax. The "mini" is due to the fact that only the interfaces required for parsing XSLT stylesheets are exposed. * XML catalogs and XSLT stylesheets now read via the fast mini-SAX API * Many more Domlette speed and memory optimizations * RDF core: various optimizations result in speedup of RDF completes and faster database access * RDF core: better Unicode handling; improvements to the way statements are printed, compared, iterated over, reified, serialized/deserialized * RDF core: optimized RDFS validation (90% speedup plus other optimizations) plus updated to current standard * XML core: Ft.Xml.MarkupWriter introduced--very friendly interface for generating XML content based on the XSLT writers, but adding convenience methods for common element creation patterns, and for inserting chunks of "literal" markup * XML core: FtMiniDom removed * XML core: All dependencies on PyExpat removed * XML core: Domlette nodes have new attributes: * xpathNamespaces, a dict of in-scope namespaces * xpathAttributes, the node's attributes, not counting those for namespace bindings * Environment variable XML_CATALOG_FILES now supported * XPath: extension functions that access the underlying OS are now disabled by default (e.g., f:spawnv(), f:system(), f:env-var()) * In Ft.Lib.Uri.OsPathToUri and UriToOsPath, attemptAbsolute now defaults to True * XLink: xlink:show='replace' behaves more usefully & sensibly * BerkeleyDB (bsddb) RDF and repository drivers added (Py 2.3+ only) * MySQL RDF and repository drivers optimized * Repository: XSLT DocDefs repository can now use extension functions/elements * Repository: better handling of external entity resolution * Doc generation issues resolved. API docs can now be generated for every module in 4Suite (various * XHTML 1.0 Transitional DTD added to default catalog * Many more bug fixes and enhancements. See also http://uche.ogbuji.net/tech/akara/? xslt=irc.xslt&date=2005-04-11#03:52:25 4Suite is a comprehensive platform for XML and RDF processing, with base libraries and a server framework. It is implemented in Python and C, and provides Python and XSLT APIs, Web and command line interfaces. For general information, see: http://4suite.org http://uche.ogbuji.net/tech/4Suite/ http://uche.ogbuji.net/tech/akara/nodes/2003-01-01/4suite-section For the files, see: ftp://ftp.4suite.org/pub/4Suite/ Sources: ftp://ftp.4suite.org/pub/4Suite/4Suite-1.0b1.tar.gz Windows installer: ftp://ftp.4suite.org/pub/4Suite/4Suite-1.0b1.win32-py2.2.exe ftp://ftp.4suite.org/pub/4Suite/4Suite-1.0b1.win32-py2.3.exe ftp://ftp.4suite.org/pub/4Suite/4Suite-1.0b1.win32-py2.4.exe Windows zip: ftp://ftp.4suite.org/pub/4Suite/4Suite-1.0b1.zip You can also get the files on Sourceforge: https://sourceforge.net/projects/foursuite/ https://sourceforge.net/project/showfiles.php?group_id=39954 Documentation: In the locations specified above, with filenames of the form 4Suite-docs-1.0b1.* Release notes -- If you have built a 4Suite repository using an older version of 4Suite, you will probably have to make adjustments for this new release. If you used 0.12.0a3, or a more recent version, then you will have to follow the migration instructions detailed in the following message: http://lists.fourthought.com/pipermail/4suite/2004-October/012933.html In general, it's worth being familiar with the following document: http://uche.ogbuji.net/tech/akara/nodes/2003-01-01/backup There have been on and off problems for Mac OS X users. We think these are now resolved. Please see the following page for current status, notes and recommendations: http://uche.ogbuji.net/tech/akara/nodes/2003-01-01/osx Installation locations have changed since 0.12.0a3 on both Windows and Unix. See the current installation directory layout document at: http://4suite.org/docs/installation-locations.xhtml If there is a server config files at the default location for the build and platform (e.g. /usr/local/lib/4Suite/4ss.conf by default on UNIX), it will be renamed to 4ss.conf.old and then overwritten. For insulation from Domlette implementation changes, developers should always use the generic Ft.Xml.Domlette APIs (rather than, say Ft.Xml.cDomlette). -- Uche Ogbuji Fourthought, Inc. http://uche.ogbuji.net http://fourthought.com http://copia.ogbuji.net http://4Suite.org Use CSS to display XML, part 2 - http://www-128.ibm.com/developerworks/edu/x-dw-x-xmlcss2-i.html Writing and Reading XML with XIST - http://www.xml.com/pub/a/2005/03/16/py-xml.html Use XSLT to prepare XML for import into OpenOffice Calc - http://www.ibm.com/developerworks/xml/library/x-oocalc/ Schema standardization for top-down semantic transparency - http://www-128.ibm.com/developerworks/xml/library/x-think31.html

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ANN: Python 2.3.2 for PalmOS available
by lucio.torre＠gmail.com April 15, 2005

April 15, 2005

Hello, Some months ago i did a port of the Python2.3.2 interpreter to PalmOS. I didnt port any C module or created modules for PalmOS API's. But you can run an interpreter and use stdin/stdout from a form. There is also a tool to freeze scripts and use the interpreter as a pseudo-shared library. While talking with Facundo while in a PyAr meeting (python-argentina, http://www.python.org/ar ) he told me that there is some interest in this platform. So, ive made an initial release that has no documentation on how to use it or compile it (it requires codewarrior). If there is any interest on this, please let me know so we can work on getting this as a real port. As usual, this is just a proof of concept and is ugly in many ways. (ie, in Palm, code segments must be less than 64K, so some files had to be split and rearranged ). If anyone want to check this out, heres the url: http://pyar.decode.com.ar/Members/ltorre/PythonPalm Regards, Lucio.

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ANN: Python Computer Graphics Kit v2.0.0alpha3
by Matthias Baas April 15, 2005

April 15, 2005

The third alpha release of version 2 of the Python Computer Graphics Kit is available at http://cgkit.sourceforge.net What is it? ----------- The Python Computer Graphics Kit is a generic 3D package written in C++ and Python that can be used for a variety of domains such as scientific visualization, photorealistic rendering, Virtual Reality or even games. The package contains a number of generic modules that can be useful for any application that processes 3D data. This includes new types such as vectors, matrices and quaternions. Furthermore, the package can read and store 3D models in memory where they can be manipulated by Python programs. The kit comes with tools that can be used to display the scene either interactively or by rendering it offline via a RenderMan renderer. What's new? ----------- - New polyhedron geometry (made up of general concave polygons that may have holes) - New storage classes FACEVARYING and FACEVERTEX for primitive variables - OBJ import and export (including the material files) - OFF export and improved import - ASF/AMC import - BVH import - an additional maxscript that exports a Biped skeleton and motion into ASF/AMC + several smaller enhancements and bugfixes (see changelog) Windows binary versions are available for Python 2.3 and Python 2.4. For more information, visit: http://cgkit.sourceforge.net - Matthias -

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