Mailman 3 October 2007 - Python-announce-list

htmldata 1.1.1
by Connelly Barnes 26 Oct '07

26 Oct '07

Bug-fix release of htmldata, fixes error when parsing whitespace inside tags. Description of the htmldata module, from its PyPI site: http://cheeseshop.python.org/pypi/htmldata/ "Extract and modify HTML/CSS URLs, translate HTML documents <-> list data structures. The htmldata module allows one to translate HTML documents back and forth to list data structures. This allows for programmatic reading and writing of HTML documents, with much flexibility. Functions are also available for extracting and/or modifying all URLs present in the HTML or stylesheets of a document. I have found this library useful for writing robots, for "wrapping" all of the URLs on websites inside my own proxy CGI script, for filtering HTML, and for doing flexible wget-like mirroring. It keeps things as simple as possible, so it should be easy to learn. Supports XHTML, too." Connelly Barnes http://www.connellybarnes.com/ __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

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ceODBC 1.2
by Anthony Tuininga 26 Oct '07

26 Oct '07

What is ceODBC? ceODBC is a Python extension module that enables access to databases using the ODBC API and conforms to the Python database API 2.0 specifications with a few additions. I have tested this on Windows against SQL Server, Access, dBASE and Oracle and others have reported success on more obscure drivers. On Linux I have tested this against PostgreSQL. Where do I get it? http://ceodbc.sourceforge.net What's new? 1) Added support for time data as requested by Dmitry Solitsky. 2) Added support for Python 2.4 as requested by Lukasz Szybalski. 3) Added support for setting the autocommit flag in the connection constructor since some drivers do not support transactions and raise a "driver not capable" exception if any attempt is made to turn autocommit off; thanks to Carl Karsten for working with me to resolve this problem. 4) Added support for calculating the size and display size of columns in the description attribute of cursors as requested by Carl Karsten. 5) Use SQLFreeHandle() rather than SQLCloseCursor() since closing a cursor in the ODBC sense is not the same as closing a cursor in the DB API sense and caused strange exceptions to occur if no query was executed before calling cursor.close(). 6) Added additional documentation to README.txt as requested by Lukasz Szybalski. 7) Tweaked setup script and associated configuration files to make it easier to build and distribute; better support for building with cx_Logging if desired.

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OSDC 2007's Tutorial Program
by Richard Jones 25 Oct '07

25 Oct '07

Registrations are open for the Open Source Developers' Conference 2007: http://www.osdc.com.au/registration/index.html The early bird has been partially extended. Book before October 31st to save $30, and to get your free t-shirt. No t-shirts will be available after the 31st October! Key information: 31st October - Extended almost-early bird date 26th November - Tutorials 27th - 29th November - Technical programme 28th November - Google Conference Dinner Royal on the Park Hotel Cnr Alice & Albert Streets Brisbane CBD Queensland The Open Source Developers' Conference is an Australian conference covering talks about software development for open source languages and projects; regardless of operating system. There will be 3-4 streams of talks over the three days of technical programme, with combined keynotes at the start of each day. Morning and afternoon teas, and lunch will be provided. The Google Conference Dinner will be held on the night of the 28th November (each full registration includes one ticket (until sold out)). Tutorial attendance will include a tea break, lunch and printed reference material. Tutorials cost $250 each. Our tutorial program is included below: Room 1 --------------------------------------------------------------------- 9:00am "MySQL Optimisation by Design" by Arjen Lentz 12:30pm Lunch 1:30pm "Advanced SQL for Developers (PostgreSQL)" by Evan Leybourn 5:00pm End --------------------------------------------------------------------- Room 2 --------------------------------------------------------------------- 9:00am "Test Driven Development" by Kirrily Robert 12:30pm Lunch 1:30pm "Getting Started with Bazaar" by Ian Clatworthy 5:00pm End --------------------------------------------------------------------- Room 3 --------------------------------------------------------------------- 9:00am "Incident Response using PyFlag - the Forensic and Log Analysis GUI" by Dr Michael Cohen 12:30pm Lunch 1:30pm "Groovy Tutorial" by Dr Paul W King 5:00pm End --------------------------------------------------------------------- A tea break will occur roughly half way through each tutorial. For more information on what each tutorial covers, please follow the links from the schedule: http://www.cgpublisher.com/conferences/107/web/program-detail.html Prices and information on how to register can be found at: http://www.osdc.com.au/registration/index.html You can help us make this conference be the best developers' conference this year just by turning up and participating! We look forward to sharing this great conference with you. If your business would like to benefit from exposure to many of Australia's best open source developers then perhaps you should consider sponsorship. We have a wide range of sponsorship options, to find out more information please visit: http://www.osdc.com.au/sponsors/index.html Many thanks go to our sponsors: Apress, Brisbane PHP, BuilderAU, Common Ground, Google, Linux Magazine, Opengear, Open Query, Red Hat, realestate.com.au, Sun Microsystems, Trolltech, Woodslane, Zac-Ware/Freeway. Forwarded on behalf of: Jacinta Richardson OSDC Publicity Officer

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Learn about mod_wsgi at SyPy Meetup Thursday, 1 Nov 2007
by Mark Rees 24 Oct '07

24 Oct '07

Hi everyone, For our November meeting, Google have kindly offered to host us again. Thursday, November 1, 2007 6:15-8:30PM Google Australia Level 18, Tower 1 Darling Park 201 Sussex St Sydney We will have one scheduled presentation: Graham Dumpleton will talk about mod_wsgi (http://www.modwsgi.org). Graham is the developer of mod_wsgi which is a simple to use Apache module that can host any Python application which supports the Python WSGI interface. followed by some lively discussion and for those who want to, we will continue the gathering at a local watering hole after 8:30PM. Of course if anyone else would like to give a presentation or a lightening talk please let me know asap. The room can hold 40 people. To attend this meeting you must RSVP to Alan Green (alangreen at google dot com) Regards Mark About SyPy A group of Sydney based python users who meet on the first Thursday of the month. Website: http://sypy.org Maillist: http://groups.google.com/group/sydneypython

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Wing IDE 3.0.1 Released
by Wingware 24 Oct '07

24 Oct '07

Hi, We're happy to announce version 3.0.1 of Wing IDE, an advanced development environment for the Python programming language. It is available from: http://wingware.com/downloads This release focuses on fixing minor usability issues found in Wing 3.0 and improves and expands the VI keyboard personality. It is a free upgrade for all Wing 3.0 users. See the change log for details: http://wingware.com/pub/wingide/3.0.1/CHANGELOG.txt *About Wing IDE* Wing IDE is an integrated development environment for the Python programming language. It provides powerful debugging, editing, code intelligence, testing, and search capabilities that reduce development and debugging time, cut down on coding errors, and make it easier to understand and navigate Python code. New features added in Wing 3.0 include: * Multi-threaded debugger * Debug value tooltips in editor, debug probe, and interactive shell * Autocompletion and call tips in debug probe and interactive shell * Automatically updating project directories * Testing tool, currently supporting unittest derived tests (*) * OS Commands tool for executing and interacting with external commands (*) * Rewritten indentation analysis and conversion (*) * Introduction of Wing IDE 101, a free edition for beginning programmers * Available as a .deb package for Debian and Ubuntu * Support for Stackless Python * Support for 64 bit Python on Windows and Linux (*)'d items are available in Wing IDE Professional only. System requirements are Windows 2000 or later, OS X 10.3.9 or later for PPC or Intel (requires X11 Server), or a recent Linux system (either 32 or 64 bit). *Purchasing & Upgrading* Wing IDE Professional & Wing IDE Personal are commercial software and require a license to run. To upgrade a 2.x license or purchase a new 3.x license: Upgrade https://wingware.com/store/upgrade Purchase https://wingware.com/store/purchase Any 2.x license sold after May 2nd 2006 is free to upgrade; others cost 1/2 the normal price to upgrade. -- The Wingware Team Wingware | Python IDE Advancing Software Development www.wingware.com

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ffnet 0.6.1 released
by Marek Wojciechowski 24 Oct '07

24 Oct '07

ffnet version 0.6.1 is released! Source packages, Gentoo ebuilds and Windows binaries are available for download at: http://ffnet.sourceforge.net If you are unfamiliar with this package, see the end of this message for a description. This is mainly bugfix release. NEW FEATURES - added 'readdata' function (simplifies reading training data from ASCII files) CHANGES & BUG FIXES - fixed bug preventing ffnet form working with scipy-0.6.0, - importing ffnet doesn't need matplotlib now (really), - corrections in fortran code generators What is ffnet? -------------- ffnet is a fast and easy-to-use feed-forward neural network training solution for python. Unique features --------------- 1. Any network connectivity without cycles is allowed. 2. Training can be performed with use of several optimization schemes including: standard backpropagation with momentum, rprop, conjugate gradient, bfgs, tnc, genetic alorithm based optimization. 3. There is access to exact partial derivatives of network outputs vs. its inputs. 4. Automatic normalization of data. Basic assumptions and limitations: ---------------------------------- 1. Network has feed-forward architecture. 2. Input units have identity activation function, all other units have sigmoid activation function. 3. Provided data are automatically normalized, both input and output, with a linear mapping to the range (0.15, 0.85). Each input and output is treated separately (i.e. linear map is unique for each input and output). 4. Function minimized during training is a sum of squared errors of each output for each training pattern. Performance ----------- Excellent computational performance is achieved implementing core functions in fortran 77 and wrapping them with f2py. ffnet outstands in performance pure python training packages and is competitive to 'compiled language' software. Moreover, a trained network can be exported to fortran sources, compiled and called in many programming languages. Usage ----- Basic usage of the package is outlined below: from ffnet import ffnet, mlgraph, savenet, loadnet, exportnet conec = mlgraph( (2,2,1) ) net = ffnet(conec) input = [ [0.,0.], [0.,1.], [1.,0.], [1.,1.] ] target = [ [1.], [0.], [0.], [1.] ] net.train_tnc(input, target, maxfun = 1000) net.test(input, target, iprint = 2) savenet(net, "xor.net") exportnet(net, "xor.f") net = loadnet("xor.net") answer = net( [ 0., 0. ] ) partial_derivatives = net.derivative( [ 0., 0. ] ) Usage examples with full description can be found in examples directory of the source distribution or browsed at http://ffnet.sourceforge.net. -- Marek

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New book on GUI programming with Python + Qt (PyQt4)
by Mark Summerfield 24 Oct '07

24 Oct '07

A new book on Python GUI (graphical user interface) programming has just been published in the US: Title: Rapid GUI Programming with Python and Qt Subtitle: The Definitive Guide to PyQt Programming Author: Mark Summerfield (mark(a)qtrac.eu) ISBN: 0132354187 Format: Hardback, 648 pages Homepage: http://www.qtrac.eu/pyqtbook.html Python is normally installed with the Tkinter GUI library, because Tk/Tcl has a liberal license and is quite small as GUI libraries go. But there are several other cross-platform GUI libraries available, including PyGtk and PyQt, as well as various platform-specific libraries. The PyQt library is based on Trolltech's C++/Qt library that is the foundation on which KDE (the K desktop environment) is built. PyQt has far more widgets than Tkinter, produces much better looking applications (because they look native on whatever platform they are running on), and is easier to learn and use (because of its high-level signals and slots communication mechanism). PyQt also offers many useful non-GUI classes, including excellent support for threading. The book covers PyQt4, and is best used with Python 2.5 and PyQt 4.2 or better, on Windows, Mac OS X, or an X11-based Unix or Linux. No prior knowledge of GUI programming is assumed, so don't worry if you've only ever done web programming:-) -- Mark Summerfield, Qtrac Ltd., www.qtrac.eu <P><A HREF="http://www.qtrac.eu/pyqtbook.html">Rapid GUI Programming with Python and Qt</A> - A new book on writing GUI applications with the PyQt4 library. (24-Oct-07)

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ordereddict 0.3
by Anthon van der Neut 24 Oct '07

24 Oct '07

I am pleased to announce version 0.3 of the ordereddict module. Changes: added setkeys/setvalues/setitems added slice retrieval, deletion, assigment added .rename(oldkey, newkey) rename a key keeping same value and position fixed .index(): non-existing key now returns ValueError instead of SystemError Changed the module name to _ordereddict (from ordereddict), as Jason Kirstland probably rightfully suggested that any private implementation likely has the (file)name ordereddict.py. A modulename with leading underscore seams more common for extension modules anyway. Solved the potential GC problem on Windows (already in 0.2a, downloadable, but unannounced) -------- From the blurb on ordereddict's home-page: This is an implementation of an ordered dictionary with Key Insertion Order: updates of values do not affect the position of the key. It implementation is directly derived from dictobject.c and its speed is 5-10% slower than dict() and 5-9 times faster than Larosa/Foord excellent pure Python implemention. This module has been tested under: Ubuntu 7.04, gcc : Python 2.5.1 Ubuntu 7.04, gcc : Python 2.4.4 Ubuntu 6.06, gcc : Python 2.5.1 Windows XP, Visual Studio 2003: Python 2.5.1 ordereddict's home on the web is at http://www.xs4all.nl/~anthon/Python/ordereddict there you also find the links where the source can be downloaded. The .zip file there included a precompiled .pyd file for Windows.

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Bookmarks database and Internet robot
by Oleg Broytmann 23 Oct '07

23 Oct '07

Hello! Bookmarks database and Internet robot WHAT IS IT A set of classes, libraries, programs and plugins I use to manipulate my bookmarks.html. I like Mozilla, but I need more features. I want to extend Mozilla's "Check for updates" feature (Navigator4 called it "Update bookmarks"). WHAT'S NEW in version 4.0.0 (2007-10-01) Extended support for Mozilla: charset and icon in bookmarks. Use the charset to add Accept-Charset header. Retrieve favicon.ico (or whatever <link> points to) and store it. The project celebrates 10th anniversary! WHAT'S NEW in version 3.4.1 (2005-01-29) Updated to Python 2.4. Switched from CVS to Subversion. WHAT'S NEW in version 3.4.0 (2004-09-23) Extended support for Mozilla: keywords in bookmarks. Updated to m_lib version 1.2. WHERE TO GET Master site: http://phd.pp.ru/Software/Python/#bookmarks_db Mirrors: http://phd.by.ru/Software/Python/#bookmarks_db http://phd.webhost.ru/Software/Python/#bookmarks_db AUTHOR Oleg Broytmann <phd(a)phd.pp.ru> COPYRIGHT Copyright (C) 1997-2007 PhiloSoft Design LICENSE GPL Oleg. -- Oleg Broytmann http://phd.pp.ru/ phd(a)phd.pp.ru Programmers don't die, they just GOSUB without RETURN.

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Leo 4.4.4 beta 3 released
by Edward K Ream 23 Oct '07

23 Oct '07

Leo 4.4.4 beta 3 is available at: http://sourceforge.net/project/showfiles.php?group_id=3458&package_id=29106 Leo 4.4.4 contains many important features originally planned for later releases. It's been a good month :-) Leo is a text editor, data organizer, project manager and much more. See: http://webpages.charter.net/edreamleo/intro.html The highlights of Leo 4.4.4: ---------------------------- - The Great Graph Aha (tm): simple scripts allow Leo outlines to represent arbitrary directed graphs. There is no need for a separate 'graph world'. The graphed.py plugin is a direct result of this Aha. The graphed.py plugin allows you to create general graphs from Leo outlines. - @menus trees in settings files create all of Leo's menus. It is now dead easy to make Leo's menus look the way you want. - @buttons trees in settings files create common @button nodes created in all Leo outlines. - @auto nodes eliminate sentinels in derived files, thereby allowing people to collaborate using Leo more easily. - New commands for resolving cvs conflicts. - A threading_colorizer plugin replaces the __jEdit_colorizer__ plugin. This plugin features much better performance and a new, elegant algorithm. - Leo is now compatible with jython. - The usual assortment of bug fixes and other minor improvements. Links: ------ Leo: http://webpages.charter.net/edreamleo/front.html Home: http://sourceforge.net/projects/leo/ Download: http://sourceforge.net/project/showfiles.php?group_id=3458 CVS: http://leo.tigris.org/source/browse/leo/ Quotes: http://webpages.charter.net/edreamleo/testimonials.html -------------------------------------------------------------------- Edward K. Ream email: edreamleo(a)yahoo.com Leo: http://webpages.charter.net/edreamleo/front.html --------------------------------------------------------------------

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