Python-announce-list March 2010

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Python Bootcamp - Last week to Register (March 15-19, 2010)
by Chander Ganesan 04 Mar '10

04 Mar '10

Just a reminder that there are only 3 weeks remaining to register for the Open Technology Group's Python Bootcamp, a 5 day hands-on, intensive, in-depth introduction to Python. This course is confirmed and guaranteed to run. Worried about the costs of air and hotel to travel for training? Don't! Our All-Inclusive Packages provide round-trip airfare and hotel accommodations and are available for all students attending from the Continental US, parts of Canada, and parts of Europe! Best of all, these packages can be booked up to March 12, 2010! For complete course outline/syllabus, or to enroll, call us at 877-258-8987 or visit our web site at: http://www.otg-nc.com/python-bootcamp OTG's Python Bootcamp is a 5 day intensive course that teaches programmers how to design, develop, and debug applications using the Python programming language. Over a 5 day period through a set of lectures, demonstrations, and hands-on exercises, students will learn how to develop powerful applications using Python and integrate their new found Python skills in their day-to-day job activities. Students will also learn how to utilize Python's Database API to interface with relational databases. This Python course is available for on-site delivery world-wide (we bring the class to you) for a group as small as 3, for as little as $8,000 (including instructor travel & per-diem)! Our course is guaranteed to run, regardless of enrollment, and available in an "all inclusive" package that includes round-trip airfare, 5 nights of hotel accommodation, shuttle services (to/from the airport, to/from our facility, and to/from local eateries/shopping), and our training. All-inclusive packages are priced from $2,495 for the 5 day course (course only is $2,295). For more information - or to schedule an on-site course, please contact us at 877-258-8987 . The Open Technology Group is the world leader in the development and delivery of training solutions focused around Open Source technologies. -- Chander Ganesan Open Technology Group, Inc. One Copley Parkway, Suite 210 Morrisville, NC 27560 919-463-0999/877-258-8987 http://www.otg-nc.com

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SQLObject 0.12.2
by Oleg Broytman 04 Mar '10

04 Mar '10

Hello! I'm pleased to announce version 0.12.2, a bugfix release of branch 0.12 of SQLObject. What is SQLObject ================= SQLObject is an object-relational mapper. Your database tables are described as classes, and rows are instances of those classes. SQLObject is meant to be easy to use and quick to get started with. SQLObject supports a number of backends: MySQL, PostgreSQL, SQLite, Firebird, Sybase, MSSQL and MaxDB (also known as SAPDB). Where is SQLObject ================== Site: http://sqlobject.org Development: http://sqlobject.org/devel/ Mailing list: https://lists.sourceforge.net/mailman/listinfo/sqlobject-discuss Archives: http://news.gmane.org/gmane.comp.python.sqlobject Download: http://cheeseshop.python.org/pypi/SQLObject/0.12.2 News and changes: http://sqlobject.org/News.html What's New ========== News since 0.12.1 ----------------- * Fixed a bug in inheritance - if creation of the row failed and if the connection is not a transaction and is in autocommit mode - remove parent row(s). * Do not set _perConnection flag if get() or _init() is passed the same connection; this is often the case with select(). For a more complete list, please see the news: http://sqlobject.org/News.html Oleg. -- Oleg Broytman http://phd.pp.ru/ phd(a)phd.pp.ru Programmers don't die, they just GOSUB without RETURN.

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SQLObject 0.11.4
by Oleg Broytman 04 Mar '10

04 Mar '10

Hello! I'm pleased to announce version 0.11.4, a minor bugfix release of 0.11 branch of SQLObject. What is SQLObject ================= SQLObject is an object-relational mapper. Your database tables are described as classes, and rows are instances of those classes. SQLObject is meant to be easy to use and quick to get started with. SQLObject supports a number of backends: MySQL, PostgreSQL, SQLite, Firebird, Sybase, MSSQL and MaxDB (also known as SAPDB). Where is SQLObject ================== Site: http://sqlobject.org Development: http://sqlobject.org/devel/ Mailing list: https://lists.sourceforge.net/mailman/listinfo/sqlobject-discuss Archives: http://news.gmane.org/gmane.comp.python.sqlobject Download: http://cheeseshop.python.org/pypi/SQLObject/0.11.4 News and changes: http://sqlobject.org/News.html What's New ========== News since 0.11.3 ----------------- * Fixed a bug in inheritance - if creation of the row failed and if the connection is not a transaction and is in autocommit mode - remove parent row(s). * Do not set _perConnection flag if get() or _init() is passed the same connection; this is often the case with select(). For a more complete list, please see the news: http://sqlobject.org/News.html Oleg. -- Oleg Broytman http://phd.pp.ru/ phd(a)phd.pp.ru Programmers don't die, they just GOSUB without RETURN.

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Twisted 10.0.0 released
by Jonathan Lange 04 Mar '10

04 Mar '10

On behalf of Twisted Matrix Laboratories, I am honored to announce the release of Twisted 10.0. Highlights include: * Improved documentation, including "Twisted Web in 60 seconds" * Faster Perspective Broker applications * A new Windows installer that ships without zope.interface * Twisted no longer supports Python 2.3 * Over one hundred closed tickets For more information, see the NEWS file. It's stable, backwards compatible, well tested and in every way an improvement. Download it now from: http://tmrc.mit.edu/mirror/twisted/Twisted/10.0/Twisted-10.0.0.tar.bz2 or http://tmrc.mit.edu/mirror/twisted/Twisted/10.0/Twisted-10.0.0.win32-py2.5.… Many thanks to Jean-Paul Calderone and Chris Armstrong, whose work on release automation tools and answers to numerous questions made this possible. Thanks also to the supporters of the Twisted Software Foundation and to the many contributors for this release. jml

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Version 0.3.8 of the Python config module has been released.
by Vinay Sajip 03 Mar '10

03 Mar '10

Version 0.3.8 of the Python config module has been released. What Does It Do? ================ The config module allows you to implement a hierarchical configuration scheme with support for mappings and sequences, cross-references between one part of the configuration and another, the ability to flexibly access real Python objects, facilities for configurations to include and cross-reference one another, simple expression evaluation and the ability to change, save, cascade and merge configurations. You can easily integrate with command line options using optparse. This module has been developed on python 2.3 but should work on version 2.2 or greater. A test suite using unittest is included in the distribution. A very simple configuration file (simple.cfg): # starts here message: Hello, world! #ends here a very simple program to use it: from config import Config cfg = Config(file('simple.cfg')) print cfg.message results in: Hello, world! Configuration files are key-value pairs, but the values can be containers that contain further values. A simple example - with the example configuration file: messages: [ { stream : `sys.stderr` message: 'Welcome' name: 'Harry' } { stream : `sys.stdout` message: 'Welkom' name: 'Ruud' } { stream : $messages[0].stream message: 'Bienvenue' name: Yves } ] a program to read the configuration would be: from config import Config f = file('simple.cfg') cfg = Config(f) for m in cfg.messages: s = '%s, %s' % (m.message, m.name) try: print >> m.stream, s except IOError, e: print e which, when run, would yield the console output: Welcome, Harry Welkom, Ruud Bienvenue, Yves The above example just scratches the surface. There's more information about this module available at http://www.red-dove.com/config-doc/ Comprehensive API documentation is available at http://www.red-dove.com/config/index.html As always, your feedback is most welcome (especially bug reports, patches and suggestions for improvement). Enjoy! Cheers Vinay Sajip Red Dove Consultants Ltd. Changes since the last release posted on comp.lang.python[.announce]: ===================================================== Fixed parsing bug which caused failure for negative numbers in sequences. Improved resolution logic.

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ikaaro 0.61.0 released
by J. David Ibáñez 03 Mar '10

03 Mar '10

This is a Content Management System built on Python & itools, among other features ikaaro provides: - content and document management (index&search, metadata, etc.) - multilingual user interfaces and content - high level modules: wiki, forum, tracker, etc. This is the companion release of itools 0.61; most important changes in this development cycle have gone to itools, and so this ikaaro release is relatively small: - The bundled jquery has been upgraded from 1.3.2 to 1.4.2 - Minor user interface improvements here and there - Sensible speed-up, mostly due to the optimizations to the database layer in itools.handlers For further details check the UPGRADE file. Resources --------- Download http://download.hforge.org/ikaaro/0.61/ikaaro-0.61.0.tar.gz Home http://www.hforge.org/ikaaro Mailing list http://www.hforge.org/community/ http://archives.hforge.org/index.cgi?list=itools Bug Tracker http://bugs.hforge.org/ -- 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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itools 0.61.0 released
by J. David Ibáñez 03 Mar '10

03 Mar '10

itools is a Python library, it groups a number of packages into a single meta-package for easier development and deployment: itools.abnf itools.ical itools.srx itools.core itools.log itools.stl itools.csv itools.odf itools.tmx itools.datatypes itools.office itools.uri itools.fs itools.pdf itools.web itools.gettext itools.pkg itools.workflow itools.git itools.python itools.xapian itools.handlers itools.relaxng itools.xliff itools.html itools.rest itools.xml itools.http itools.rss itools.xmlfile itools.i18n itools.soup The new package itools.soup is a minimal wrapper around the libsoup [1] library. Now the itools web server is based on this library, and so the API has considerably changed (check the documentation and the upgrade notes to learn more). This change improves the itools support of the HTTP protocol. The itools.vfs package has been renamed to itools.fs, and now includes a local-file-system (lfs) layer proving the same API as our virtual file system. This change is to sensibly improve performance, particularly to the itools.handlers database system. The new itools.log package offers a simple logging facility. It is inspired by the logging mechanism available in the Glib [2] library, and will eventually become just a wrapper. The ipkg-install.py and ipkg-cache-list.py scripts have been removed; now we are using "usine" [3] to automatize software deployment. The ipkg-build.py script should now work on Windows. The itools.core package has seen some additions: - the 'OrderedDict' class, for forward compatibility with Python 2.7 - the 'lazy' decorator, to make lazy properties (based on an article by Rick Copeland [4]) - the 'thingy_type' metaclass: an ongoing experiment to fusion classes & class-instances Other minor improvements include slightly better support for the ical file format. Now the libsoup library is required for the itools.http and itools.web packages. The minimum supported versions of glib and pygobject are now 2.20 and 2.18 respectively. Check the upgrade notes to learn more. [1] http://live.gnome.org/LibSoup [2] http://library.gnome.org/devel/glib/2.20/glib-Message-Logging.html [3] http://git.hforge.org/?p=usine.git;a=summary [4] http://blog.pythonisito.com/2008/08/lazy-descriptors.html Resources --------- Download http://download.hforge.org/itools/0.61/itools-0.61.0.tar.gz Home http://www.hforge.org/itools/ Mailing list http://www.hforge.org/community/ http://archives.hforge.org/index.cgi?list=itools Bug Tracker http://bugs.hforge.org/ -- 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: ConfigObj 4.7.2 Release
by Michael Foord 02 Mar '10

02 Mar '10

A new version of ConfigObj has just been released: 4.7.2 This is a bugfix release with several important bugfixes. It is recommended that all users of ConfigObj 4.7 update. * Download: http://www.voidspace.org.uk/downloads/configobj-4.7.2.zip * PyPI Page: http://pypi.python.org/pypi/configobj * Documentation: http://www.voidspace.org.uk/python/configobj.html The new version can be installed with:: pip install -U configobj Changelog ======== * BUGFIX: Restore Python 2.3 compatibility * BUGFIX: Members that were lists were being returned as copies due to interpolation introduced in 4.7. Lists are now only copies if interpolation changes a list member. (See below.) * BUGFIX: ``pop`` now does interpolation in list values as well. * BUGFIX: where interpolation matches a section name rather than a value it is ignored instead of raising an exception on fetching the item. * BUGFIX: values that use interpolation to reference members that don't exist can now be repr'd. * BUGFIX: Fix to avoid writing '\r\r\n' on Windows when `write` is given a file opened in text mode ('w'). See below for important details on the change to using list values with string interpolation. What is ConfigObj? ============== **ConfigObj** is a simple but powerful config file reader and writer: an *ini file round tripper*. Its main feature is that it is very easy to use, with a straightforward programmer's interface and a simple syntax for config files. ConfigObj has a host of powerful features: * Nested sections (subsections), to any level * List values * Multiple line values * Full Unicode support * String interpolation (substitution) * Integrated with a powerful validation system - including automatic type checking/conversion - and allowing default values - repeated sections * All comments in the file are preserved * The order of keys/sections is preserved * Powerful ``unrepr`` mode for storing/retrieving Python data-types String Interpolation and List Values ========================= For general information on string interpolation in ConfigObj see: http://www.voidspace.org.uk/python/configobj.html#string-interpolation Since version 4.7 string interpolation is done on string members of list values. If interpolation changes any members of the list then what you get back is a /copy/ of the list rather than the original list. This makes fetching list values slightly slower when interpolation is on, it also means that if you mutate the list changes won't be reflected in the original list: >>> c = ConfigObj() >>> c['foo'] = 'boo' >>> c['bar'] = ['%(foo)s'] >>> c['bar'] ['boo'] >>> c['bar'].append('fish') >>> c['bar'] ['boo'] Instead of mutating the list you must create a new list and reassign it. -- http://www.ironpythoninaction.com/

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Python training in Florida, April 27-29
by lutz＠learning-python.com 02 Mar '10

02 Mar '10

Tired of the Winter weather? Make your plans now to attend our upcoming Florida Python training seminar in April. This 3-day public class will be held on April 27-29, in Sarasota, Florida. It is open to both individual and group enrollments. For more details on the class, as well as registration instructions, please visit the class web page: http://learning-python.com/2010-public-classes.html Note that we have moved to a new domain name. If you are unable to attend in April, our next Sarasota class is already scheduled for July 13-15. Thanks, and we hope to see you at a Python class in sunny and warm Florida soon. --Mark Lutz at learning-python.com

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EPD 6.1 & Upcoming Webinars
by Amenity Applewhite 02 Mar '10

02 Mar '10

March is shaping up to be as busy as ever: planning SciPy 2010 (http://conference.scipy.org/scipy2010 ), two great webinars...and a new release of EPD! *Enthought Python Distribution 6.1* In EPD 6.1, NumPy and SciPy are dynamically linked against the MKL linear algebra routines. This allows EPD users to seamlessly benefit from the highly optimized BLAS and LAPACK routines in the MKL. We were certainly expecting to observe performance improvements, but we were surprised at just how dramatic the optimizations were for applications run on dual and multi-core Intel® processors. Refer to our benchmarking tests for more info: http://www.enthought.com/epd/mkl Then try it yourself! http://www.enthought.com/products/getepd.php *Enthought March Webinars* This Friday, Travis Oliphant will lead a webinar on optimization methods in EPD. Then, on the 19th, we'll host a webinar on Python libraries for integrating C and C++ code, namely Weave, Cython, and ctypes. Enthought Python Distribution Webinar How do I... optimize? Friday, March 5: 1pm CST/7pm UTC Wait-list (for non-subscribers): email amenity(a)enthought.com Scientific Computing with Python Webinar Weave, Cython, and ctypes Friday, March 19: 1pm CST/7pm UTC Register: https://www1.gotomeeting.com/register/335697152 Enjoy! The Enthought Team Open Course Austin, TX: http://www.enthought.com/training/open-austin-sci.php Python for Scientists and Engineers • May 17- 19 Interfacing with C / C++ and Fortran • May 20 Introduction to UIs and Visualization • May 21 Financial Open Course, London, UK: http://www.enthought.com/training/open-london-fin.php Python for Quants • March 8-10 Software Craftsmanship • March 11 Introduction to UIs and Visualization • March 12 Pricing, licensing, and training inquiries Didrik and Matt are dedicated to answering your questions and getting you the support you need. US : Matt Harward mharward(a)enthought.com Europe: Didrik Pinte dpinte(a)enthought.com

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Python-announce-list March 2010