Mailman 3 February 2007 - Python-announce-list

PyPy 0.99 released
by Carl Friedrich Bolz Feb. 17, 2007

Feb. 17, 2007

====================================================================== pypy-0.99.0: new object spaces, optimizations, configuration ... ====================================================================== Welcome to the PyPy 0.99.0 release - a major snapshot and milestone of the last 8 months of work and contributions since PyPy-0.9.0 came out in June 2006! Main entry point for getting-started/download and documentation: http://codespeak.net/pypy/dist/pypy/doc/index.html Further below you'll find some notes about PyPy, the 0.99.0 highlights and our aims for PyPy 1.0. have fun, the PyPy team, Samuele Pedroni, Carl Friedrich Bolz, Armin Rigo, Michael Hudson, Maciej Fijalkowski, Anders Chrigstroem, Holger Krekel, Guido Wesdorp and many others: http://codespeak.net/pypy/dist/pypy/doc/contributor.html What is PyPy? ================================ Technically, PyPy is both a Python Interpreter implementation and an advanced Compiler, actually a framework for implementing dynamic languages and generating virtual machines for them. The Framework allows for alternative frontends and for alternative backends, currently C, LLVM and .NET. For our main target "C", we can can "mix in" different Garbage Collectors and threading models, including micro-threads aka "Stackless". The inherent complexity that arises from this ambitious approach is mostly kept away from the Python interpreter implementation, our main frontend. Socially, PyPy is a collaborative effort of many individuals working together in a distributed and sprint-driven way since 2003. PyPy would not have gotten as far without the coding, feedback and general support from numerous people. Formally, many of the current developers are involved in executing an EU contract with the goal of exploring and researching new approaches to Language/Compiler development and software engineering. This contract's duration is about to end March 2007 and we are working and preparing the according final review which is scheduled for May 2007. Key 0.99.0 Features ===================== * new object spaces: - Tainting: a 270-line proxy object space tracking and boxing sensitive information within an application. A tainted object is completely barred from crossing an I/O barrier, such as writing to files, databases or sockets. This allows to significantly reduce the effort of e.g. security reviews to the few places where objects are "declassified" in order to send information across I/O barriers. - Transparent proxies: allow to customize both application and builtin objects from application level code. Works as an addition to the Standard Object Space (and is translatable). For details see http://codespeak.net/pypy/dist/pypy/doc/proxy.html * optimizations: - Experimental new optimized implementations for various built in Python types (strings, dicts, lists) - Optimized builtin lookups to not require any dictionary lookups if the builtin is not shadowed by a name in the global dictionary. - Improved inlining (now also working for higher level backends) and malloc removal. - twice the speed of the 0.9 release, overall 2-3 slower than CPython * High level backends: - It is now possible to translate the PyPy interpreter to run on the .NET platform, which gives a very compliant (but somewhat slow) Python interpreter. - the JavaScript backend has evolved to a point where it can be used to write AJAX web applications with it. This is still an experimental technique, though. For demo applications see: http://play1.codespeak.net:8008/ * new configuration system: There is a new comprehensive configuration system that allows fine-grained configuration of the PyPy standard interpreter and the translation process. * new and improved modules: Since the last release, the signal, mmap, bz2 and fcntl standard library modules have been implemented for PyPy. The socket, _sre and os modules have been greatly improved. In addition we added a the pypymagic module that contains PyPy-specific functionality. * improved file implementation: Our file implementation was ported to RPython and is therefore faster (and not based on libc). * The stability of stackless features was greatly improved. For more details see: http://codespeak.net/pypy/dist/pypy/doc/stackless.html * RPython library: The release contains our emerging RPython library that tries to make programming in RPython more pleasant. It contains an experimental parser generator framework. For more details see: http://codespeak.net/pypy/dist/pypy/doc/rlib.html * improved documentation: - extended documentation about stackless features: http://codespeak.net/pypy/dist/pypy/doc/stackless.html - PyPy video documentation: eight hours of talks, interviews and features: http://codespeak.net/pypy/dist/pypy/doc/video-index.html - technical reports about various aspects of PyPy: http://codespeak.net/pypy/dist/pypy/doc/index-report.html The entry point to all our documentation is: http://codespeak.net/pypy/dist/pypy/doc/index.html What about 1.0? ====================== In the last week leading up to the release, we decided to go for tagging the release as 0.99.0, mainly because we have some efforts pending to integrate and complete research and coding work: * the JIT Compiler Generator is ready, but not fully integrated with the PyPy interpreter. As a result, the JIT does not give actual speed improvements yet, so we chose to leave it out of the 0.99 release: the result doesn't meet yet the speed expectations that we set for ourselves - and which some blogs and people have chosen as the main criterium for looking at PyPy. * the extension enabling runtime changes of the Python grammar is not yet integrated. This will be used to provide Aspect-Oriented Programming extensions and Design by Contract facilities in PyPy. * the Logic object space, which provides Logic Variables in PyPy, needs to undergo a bit more testing. A constraint problem solver extension module is ready, and needs to be integrated with the codebase. PyPy 0.99 is the start for getting to 1.0 end of March 2007, which we intend to become a base for a longer (and more relaxed :) time to come. Funding partners and organisations ===================================================== PyPy development and activities happen as an open source project and with the support of a consortium partially funded by a 28 months European Union IST research grant. The full partners of that consortium are: Heinrich-Heine University (Germany), Open End (Sweden) merlinux GmbH (Germany), tismerysoft GmbH (Germany) Logilab Paris (France), DFKI GmbH (Germany) ChangeMaker (Sweden), Impara (Germany)

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Front Range Pythoneers Monthly Meeting: Wed, Feb 21, in Boulder, Colorado
by frpythoneers＠gmail.com Feb. 16, 2007

Feb. 16, 2007

== Meeting: Wednesday, February 21, 2007 == * Time: 6-8 PM * Location: bivio Software, Inc., 28th and Iris. Above Hair Elite in Suite S. There is abundant parking. We have a line up of PyCon talks. Our presenters will have a chance to practice on you, while giving you a sneak peek of what will happen in Dallas next weekend: * Fernando Perez will present his joint talk with Brian Granger, "IPython: Getting the most out of working interactively in Python": IPython (if you do not know it yet) is an enhanced interactive shell for Python. It provides a large number of features not found in the default shell that make interactive work in Python more seamless and convenient. * Jim Baker will present "Iterators in Action": Using iterators well can make your code lean and your programming fun. We will distill current best practice by investigating some (mostly) useful examples of iterators in action. Expect to see a focus on itertools and recipes from the cookbook. Other items to talk about: * BoulderSprint. We had a great JythonSprint, focusing on getting IPython to work on it. Next sprint will be in April, also on IPython. Wait a second, what's up with IPython? * Google Summer of Code. One of our missions is to mentor Pythoneers. Does it make sense to add a local component to GSoC 2007? We will have food & drink available as usual. Hope to see you there! More info: http://wiki.python.org/moin/FrontRangePythoneers

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ANNOUNCE: Elisa 0.1.4
by Philippe Normand Feb. 16, 2007

Feb. 16, 2007

The Elisa team is proud to announce 0.1.4 release of the core of the Elisa home multimedia system. Elisa is a project to create an open source cross platform media center solution. While our primary development and deployment platform is GNU/Linux and Unix operating systems we also currently support Microsoft Windows and also hope to support MacOSX in the future. Elisa runs on top of the GStreamer multimedia framework and is developped in Python. We fixed many issues, bugs and added some features since the last release: - the media database system has been improved, one step further towards big media collections support - pictures/movies thumbnails are now compatible with Freedesktop specifications - the skin has been slightly improved in many places (new pictos, better animations, picture-folders icon compositing) - Pigment labels now display much better and are now scalable - The SDL Pigment backend has been replaced by a XWindow/GLX backend - Pigment now handle screens with non-square aspect ratio resolutions

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ANN: The Technology Behind PyCon - 1 ShowMeDo Video, the first in a new series
by Ian Ozsvald Feb. 15, 2007

Feb. 15, 2007

Summary: Doug Napoleone introduces the technology behind PyCon-Tech in this introductory video, the first in a larger series. This series will cover Zope, Django, PHP and other tools. PyCon-Tech Introduction "PyCon-Tech is an initiative started by A. M. Kuchling to create an integrated set of tools for running the PyCon conference. In this introduction we give an overview of the PyCon web site public interfaces (wiki, talk archive, schedule) and the technologies used to implement them (pmwiki, zope, django). The technologies are fully integrated into a (mostly) seamless site." http://showmedo.com/videos/video?name=pythonNapleonePyConTech1&fromSeriesID… About Doug Napoleone: This is Doug's first ShowMeDo series. He will guide you through the technology used behind-the-scenes at PyCon. Remember to say Thanks and leave feedback if you like Doug's work. About ShowMeDo.com: Free videos (we call them ShowMeDos) showing you how to do things. The videos are made by us and our users, for everyone. 74 of our 148 videos are for Python, with more to come. We'd love to have more contributions - would you share what you know? The founders, Ian Ozsvald, Kyran Dale http://ShowMeDo.com

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ANN: Einführung in die Programmierung mit Python part 7 - Funktionen (1 German ShowMeDo video)
by Ian Ozsvald Feb. 15, 2007

Feb. 15, 2007

Summary: Lucas Holland and Marius Meinert continue their introductory German Python series, in this instalment they have released their 7th video. German video description: Funktionen “In dieser Episode geht es um Funktionen, also um das Gruppieren von Code zu Einheiten, die wiederverwendbar sind.” http://showmedo.com/videos/video?name=pythonHollandIntroToPython7_german&fr… About Lucas Holland and Marius Meinert: This is Lucas and Marius' first ShowMeDo series and the have made our first non-English series. If you like their videos, please leave some words of encouragement and thanks for their efforts. About ShowMeDo.com: Free videos (we call them ShowMeDos) showing you how to do things. The videos are made by us and our users, for everyone. 74 of our 148 videos are for Python, with more to come. We'd love to have more contributions - would you share what you know? The founders, Ian Ozsvald, Kyran Dale http://ShowMeDo.com

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Regular Toronto Python User's Group (PyGTA) meeting this Tuesday
by Mike C. Fletcher Feb. 15, 2007

Feb. 15, 2007

As usual we will be holding our PyGTA meeting at the cool and funky Linux Caffe, located at the corner of Grace and Harbord Streets in downtown Toronto. This month's talk will be presented by our own Clifford Ilkay of Dinamis Corporation on using the Django web framework. A framework that Guido himself has described as "Pythonic" and which has a reasonably large and devoted following in the Python web framework ecosystem. As usual we will begin gathering, picking up delicious drinks and socialising around 6:30 pm, with the formal part of the meeting starting at 7:00pm. We'll head out for beer, ice cream and what have you around 8:30 or 9:00. Maps and the like available on the wiki: http://web.engcorp.com/pygta/wiki/NextMeeting Have fun all, Mike -- ________________________________________________ Mike C. Fletcher Designer, VR Plumber, Coder http://www.vrplumber.com http://blog.vrplumber.com

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ANN: EasyDialogs for Windows version 46691.0
by Jimmy Retzlaff Feb. 15, 2007

Feb. 15, 2007

EasyDialogs for Windows is available at: http://www.averdevelopment.com/python/ EasyDialogs for Windows is a ctypes based emulation of the EasyDialogs module included in the Python distribution for Mac. It attempts to be as compatible as possible. Code using the Mac EasyDialogs module can often be run unchanged on Windows using this module. The module has been tested on Python 2.3 running on Windows NT, 98, XP, and 2003. EasyDialogs is written in pure Python using Thomas Heller's ctypes module to call Windows APIs directly. No Python GUI toolkit is used. This means that relatively small distributions can be made with py2exe (or its equivalents). A simple test of all the dialogs in EasyDialogs bundled up using py2exe results in a distribution that is about 1.25MB. Using py2exe in concert with NSIS as shown here allows the same test to run as a single file executable that is just under 500KB. Requires: Microsoft Windows, Python 2.3 or higher, and ctypes 0.6.3 or higher (ctypes is included with Python 2.5 and higher, so it is not a separate requirement there). License: MIT Change history: Version 46691.0 - Fixed a bug that caused warnings with newer version of ctypes (including the version included in Python 2.5) - The edit box in AskString now scrolls horizontally if the entered text does not otherwise fit - AskFileForOpen(multiple=True) will allow multiple files to be selected and a list of strings will be returned. If multiple is False (the default if not specified) then only a single file can be selected and a string is returned. This no longer seems to work on the Mac, but it's useful enough to add it to the Windows version anyway. This change is based on a patch contributed by Waldemar Osuch. - Made minor changes to bring inline with SVN revision 46691 for Mac Version 1.16.0 - Removed resource DLL, resources are now in a Python source file which simplifies distribution of apps with py2exe - Spelling corrections - File open/save dialogs did not display on Windows 98 - AskString edit boxes were too short on Windows 98 - Improved display of drop down lists on Windows 98 and NT - Made minor changes to bring inline with CVS version 1.16 for Mac Version 1.14.0 - Initial public release Jimmy

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Roundup Issue Tracker release 1.3.3
by Richard Jones Feb. 14, 2007

Feb. 14, 2007

I'm proud to release version 1.3.3 of Roundup. Fixed in 1.3.3: - If-Modified-Since handling was broken - Updated documentation for customising hard-coded searches in page.html - Updated Windows installation docs (thanks Bo Berglund) - Handle rounding of seconds generating invalid date values - Handle 8-bit untranslateable messages from database properties - Fix scripts/roundup-reminder date calculation (sf bug 1649979) - Improved due_date and timelog customisation docs (sf bug 1625124) New Features in 1.3.0: - WSGI support via roundup.cgi.wsgi_handler If you're upgrading from an older version of Roundup you *must* follow the "Software Upgrade" guidelines given in the maintenance documentation. Roundup requires python 2.3 or later for correct operation. To give Roundup a try, just download (see below), unpack and run:: roundup-demo Release info and download page: http://cheeseshop.python.org/pypi/roundup Source and documentation is available at the website: http://roundup.sourceforge.net/ Mailing lists - the place to ask questions: http://sourceforge.net/mail/?group_id=31577 About Roundup ============= Roundup is a simple-to-use and -install issue-tracking system with command-line, web and e-mail interfaces. It is based on the winning design from Ka-Ping Yee in the Software Carpentry "Track" design competition. Note: Ping is not responsible for this project. The contact for this project is richard(a)users.sourceforge.net. Roundup manages a number of issues (with flexible properties such as "description", "priority", and so on) and provides the ability to: (a) submit new issues, (b) find and edit existing issues, and (c) discuss issues with other participants. The system will facilitate communication among the participants by managing discussions and notifying interested parties when issues are edited. One of the major design goals for Roundup that it be simple to get going. Roundup is therefore usable "out of the box" with any python 2.3+ installation. It doesn't even need to be "installed" to be operational, though a disutils-based install script is provided. It comes with two issue tracker templates (a classic bug/feature tracker and a minimal skeleton) and five database back-ends (anydbm, sqlite, metakit, mysql and postgresql).

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ANN: java2python 0.1
by Troy Melhase Feb. 14, 2007

Feb. 14, 2007

java2python - Java to Python Source Code Translator --------------------------------------------------- java2python 0.1 Released 14 February 2007 What is java2python? ------------------------------------------------------------------------------ java2python is a simple but effective tool to translate Java source code into Python source code. It's not perfect, and does not aspire to be. Where can I get java2python? ------------------------------------------------------------------------------ java2python is available for download from Google code: http://code.google.com/p/java2python/downloads/list Project page: http://code.google.com/p/java2python/ How do I use java2python? ------------------------------------------------------------------------------ Like this: $ j2py -i input_file.java -o output_file.py The command has many options, and supports customization via multiple configuration modules. What are the requirements? ------------------------------------------------------------------------------ java2python requires Python 2.5 or newer. Previous versions may or may not work. java2python requires ANTLR and PyANTLR to translate code, but translated code does not require ANTLR. What else? ------------------------------------------------------------------------------ java2python is installed with distutils. Refer to the Python distutils documentation for more information. The digest version is: $ tar xzf java2python-0.1.tar.gz $ cd java2python-0.1 $ python setup.py install java2python is licensed under the GNU General Public License 2.0. No license is assumed of (or applied to) translated source. I'm very interested in your experience with java2python. Please drop me an note with any feedback you have. Troy Melhase mailto:troy@gci.net

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ANN: Porcupine Web Application Server 0.0.9 released
by t.koutsovassilis＠gmail.com Feb. 14, 2007

Feb. 14, 2007

The inno:script team announces the new release of Porcupine server. This release introduces remarkable new features on the server side including a configurable in-memory object cache and a new post- processing filter for easy output i18n. Due to the method decorators used, Porcupine is no longer compatible with Python 2.3. We also recommend sub-classing the new type of QuiX servlet (XULSimpleTemplateServlet) instead of the primitive XULServlet class. The new type takes advantage of the new Python "string.Template" module, resulting in simpler and more readable QuiX templates. By default, the object cache is configured for keeping up to 500 objects. You can change this setting by editing the main Porcupine configuration file. Also keep in mind that each post processing filter is now declared as a child node of its registration node. See the store registrations file "store.xml" as a usage guideline. On the browser side, QuiX adds minor improvements to better support Internet Explorer 7 but also includes many minor bug fixes. Last but not least, the rendering performance is greatly improved by minimizing the number of redraws required when drawing new interfaces from XML. As a side effect of this optimization, you might need an extra call to the "redraw" method of some of your dynamically added widgets in order to have them displayed correctly. Enjoy. Resources ========= What is Porcupine? http://www.innoscript.org/content/view/30/42/ Porcupine Downloads: http://www.innoscript.org/component/option,com_remository/Itemid,33/func,se… Porcupine online demo: http://www.innoscript.org/content/view/21/43/ Porcupine Wiki: http://wiki.innoscript.org

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ANN: Pygments 0.7 "Faschingskrapfn" released
by Georg Brandl Feb. 14, 2007

Feb. 14, 2007

I'm very pleased to announce the third public release of Pygments, the generic Python syntax highlighter. Download it from <http://cheeseshop.python.org/pypi/Pygments>, or look at the demonstration at <http://pygments.org/demo>. News ---- The new features since 0.6 include: * New lexers for * OCaml * Dylan * Java Server Pages * Windows batch files * Trac Wiki markup * Python tracebacks * ReStructuredText * sources.list * Mako templates * and the Befunge esoteric programming language (yay!) * Token stream filters, which can e.g. highlight certain names or code tags. * An HTML formatter that is easily subclassable. * An option to control the command prefix for the LaTeX formatter. * A MoinMoin parser plugin to easily get Pygments highlighting in Moin. * ... and many little changes and fixes that are listed in the detailed changelog. About ----- Pygments is a generic syntax highlighter for general use in all kinds of software such as forum systems, wikis or other applications that need to prettify source code. Highlights are: * a wide range of common languages and markup formats is supported * special attention is paid to details increasing quality by a fair amount * support for new languages and formats are added easily * a number of output formats is available, presently HTML, LaTeX, RTF and ANSI sequences * it is usable as a command-line tool and as a library * ... and it highlights even Brainf*ck! The home page is at <http://pygments.org>. Read more in the FAQ list <http://pygments.org/faq> or look at the documentation <http://pygments.org/docs>. regards and happy Valentine's day, Georg

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py lib 0.9.0: py.test, distributed execution, microthreads ...
by holger krekel Feb. 14, 2007

Feb. 14, 2007

py lib 0.9.0: py.test, distributed execution, greenlets and more ====================================================================== Welcome to the 0.9.0 py lib release - a library aiming to support agile and test-driven python development on various levels. Main API/Tool Features: * py.test: cross-project testing tool with many advanced features * py.execnet: ad-hoc code distribution to SSH, Socket and local sub processes * py.magic.greenlet: micro-threads on standard CPython ("stackless-light") * py.path: path abstractions over local and subversion files * rich documentation of py's exported API * tested against Linux, OSX and partly against Win32, python 2.3-2.5 All these features and their API have extensive documentation, generated with the new "apigen", which we intend to make accessible for other python projects as well. Download/Install: http://codespeak.net/py/0.9.0/download.html Documentation/API: http://codespeak.net/py/0.9.0/index.html Work on the py lib has been partially funded by the European Union IST programme and by http://merlinux.de within the PyPy project. best, have fun and let us know what you think! Holger Krekel, Maciej Fijalkowski, Guido Wesdorp, Carl Friedrich Bolz

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Wing IDE 2.1.4 Released
by Wingware Announce Feb. 12, 2007

Feb. 12, 2007

Hi, I'm happy to announce version 2.1.4 of Wing IDE, an integrated development environment for the Python programming language. This is a bug fix release that among other things fixes handling of UTF-8 byte order marks, improves auto-completion for PyQt 4, reports exceptions correctly in Python < 2.2, fixes some problems with Subversion 1.4, does better adaptive scrolling on OS X, and displays menus correctly in Hebrew locales. The release can be downloaded from: http://wingware.com/downloads A detailed list of all changes is available here: http://wingware.com/pub/wingide/2.1.4/CHANGELOG.txt Wing IDE provides powerful debugging, editing, code intelligence, and search capabilities that reduce development and debugging time, cut down on coding errors, and make it easier to understand and navigate Python code. Highlights of Wing IDE 2.1: * Professional quality code editor * Visual Studio, VI/Vim, Emacs, and Brief key bindings * Auto-completion, call tips, and source browser * Graphical debugger for Python, Zope, and Plone * Subversion, CVS, and Perforce integration * Powerful search interface * User-extensible with Python scripts * Templates (code snippets), bookmarks, folding, macros, and more Some features are available in Wing IDE Pro only -- for details see http://wingware.com/wingide/features This release is available for Windows (2000+), Linux, and Mac OS X (10.3+ with X11 installed) and can be compiled from sources on *BSD, Solaris, and other Posix operating systems. For more information see: Product Info: http://wingware.com/products Sales: https://wingware.com/store/purchase Sincerely, The Wingware Team

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Hamburg Python Meetup Group
by Helge Stahlmann Feb. 12, 2007

Feb. 12, 2007

+++++ Hamburg Python Meetup Group +++++ I am pleased to announce a new Python Users Group for folks in and near Hamburg, Germany: The Hamburg Python Meetup Group. It is your chance to meet other local Python Programming Language enthusiasts! Our first meeting is scheduled for March, 8th 2007 at 7:00pm Meetings are on the second Thursday of each month. If you're interested in learning more, please visit our website at http://python.meetup.com/179/ Helge Additional links: RSS Newsfeed: feed://www.meetup.com/rss/g/python/179/new/ Group Calendar RSS: feed://python.meetup.com/179/calendar/rss/The+Hamburg+Python+Meetup+Group/ iCal: webcal://python.meetup.com/179/calendar/ical/The+Hamburg+Python+Meetup+Grou…

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TayLayout 00.00.16
by daftspaniel＠gmail.com Feb. 12, 2007

Feb. 12, 2007

TayLayout 00.00.16 Layout and Controls helpers for rapid and dynamic IronPython WinForms GUIs. http://code.google.com/p/taylayout/ This is a small release of TayLayout with a few new handy classes. LDForm, LDPrompt and LDDialog provide a few more helpers and the main layout code has an important tweak.

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ANN: Pyro 3.6 beta
by Irmen de Jong Feb. 12, 2007

Feb. 12, 2007

It is with great pleasure that I announce that the release of a beta version of Pyro 3.6-- the greatest Pyro release yet! "What is Pyro?" "Pyro is short for PYthon Remote Objects. It is an advanced and powerful Distributed Object Technology system written entirely in Python, that is designed to be very easy to use. Never worry about writing network communication code again." Go to Pyro's Sourceforge download page to get it, and please give it a good testing. It would be great to hear of any issues or problems you encounter, before putting out the final 3.6 release. Pyro has been a Sourceforge project for over 6 years now. http://pyro.sourceforge.net http://sourceforge.net/projects/pyro I have made a HUGE amount of improvements and fixes since the previous version, 3.5, which was released about 14 months ago (sorry!). If you want to review what has been done, read the 'changes' chapter in the manual, and/or visit Pyro's "todo" wiki page: http://www.razorvine.net/python/PyroTodoList Thanks for your support, and I'm looking forward to release a final Pyro-3.6 version soon ! Sincerely, --Irmen de Jong PS: Sourceforge's shell access is down at the moment so I can't update the Pyro web page itself yet.

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ANN: shm and shm_wrapper 1.1
by Nikita the Spider Feb. 12, 2007

Feb. 12, 2007

Hi all, Versions 1.1 of shm and shm_wrapper -- two modules which enable IPC (shared memory and sempahores) via Python -- are now available. The former is Vladimir Marangozov's old shm module with some bug fixes, the latter is my wrapper which I find more Pythonic. Feedback is welcome. http://NikitaTheSpider.com/python/shm/ Enjoy! -- Philip http://NikitaTheSpider.com/ Whole-site HTML validation, link checking and more

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SQLObject 0.8.0
by Oleg Broytmann Feb. 12, 2007

Feb. 12, 2007

Hello! I'm pleased to announce the 0.8.0 release 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, and Firebird. It also has newly added support for 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/0.8.0 News and changes: http://sqlobject.org/News.html What's New ========== News since 0.7 -------------- Features & Interface -------------------- * It is now possible to create tables that reference each other. Constraints (in the DBMSes that support constraints) are added after the tables have been created. * Added ``createSQL`` as an option for sqlmeta. Here you can add related SQL you want executed by sqlobject-admin create after table creation. createSQL expects a string, list, or dictionary. If using a dictionary the key should be a dbName value (ex. 'postgres') and the value should be a string or list. Examples in sqlobject/tests/test_sqlobject_admin.py or at <http://sqlobject.org/sqlobject-admin.html#the-create-command> * Added method ``sqlhub.doInTransaction(callable, *args, **kwargs)``, to be used like:: sqlhub.doInTransaction(process_request, os.environ) This will run ``process_request(os.environ)``. The return value will be preserved. * Added method ``.getOne([default])`` to ``SelectResults`` (these are the objects returned by ``.select()`` and ``.selectBy()``). This returns a single object, when the query is expected to return only one object. The single argument is the value to return when zero results are found (more than one result is always an error). If no default is given, it is an error if no such object exists. * Added a WSGI middleware (in ``sqlobject.wsgi_middleware``) for configuring the database for the request. Also handles transactions. Available as ``egg:SQLObject`` in Paste Deploy configuration files. * New joins! ManyToMany and OneToMany; not fully documented yet, but still more sensible and smarter. * SELECT FOR UPDATE * New module dberrors.py - a hierarchy of exceptions. Translation of DB API module's exceptions to the new hierarchy is performed for SQLite and MySQL. * SQLiteConnection got a new keyword "factory" - a name or a reference to a factory function that returns a connection class; useful for implementing functions or aggregates. See test_select.py and test_sqlite_factory.py for examples. * SQLObject now disallows columns with names that collide with existing variables and methods, such as "_init", "expire", "set" and so on. Small Features -------------- * Configurable client character set (encoding) for MySQL. * Added a close option to .commit(), so you can close the transaction as you commit it. * DecimalValidator. * Added .expireAll() methods to sqlmeta and connection objects, to expire all instances in those cases. * String IDs. * FOREIGN KEY for MySQL. * Support for sqlite3 (a builtin module in Python 2.5). * SelectResults cannot be queried for truth value; in any case it was meaningless - the result was always True; now __nonzero__() raises NotImplementedError in case one tries bool(MyTable.select()) or "if MyTable.select():..." * With empty parameters AND() and OR() returns None. * Allows to use set/frozenset sets/Set/ImmutableSet sets as sequences passed to the IN operator. * ID columns are now INT UNSIGNED for MySQL. Bug Fixes --------- * Fixed problem with sqlite and threads; connections are no longer shared between threads for sqlite (except for :memory:). * The reference loop between SQLObject and SQLObjectState eliminated using weak references. * Another round of bugfixes for MySQL errors 2006 and 2013 (SERVER_GONE, SERVER_LOST). * Fixed a bug in MSSQLConnection caused by column names being unicode. * Fixed a bug in FirebirdConnection caused by column names having trailing spaces. * Order by several columns with inheritance. * Fixed aggregators and accumulators with inheritance. For a more complete list, please see the news: http://sqlobject.org/News.html 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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Leipzig Python User Group - Meeting, February 13, 2007, 8:00pm
by Mike Müller Feb. 11, 2007

Feb. 11, 2007

========================= Leipzig Python User Group ========================= Next Meeting Tuesday, February 13, 2007 ---------------------------------------- We will meet on February 13 at 8:00 pm at the training center of Python Academy in Leipzig, Germany (http://www.python-academy.com/center/find.html). This time our main topic will be Pyrex (http://www.cosc.canterbury.ac.nz/greg.ewing/python/Pyrex). Pyrex makes writing Python extension much easier. Members of our User Group achieved run time improvements with Pyrex that exceed the factor of ten. As usual, there also will be discussions about other Python topics. Food and soft drinks are provided. Please send a short confirmation mail to info(a)python-academy.de, so we can prepare appropriately. Everybody who uses Python, plans to do so or is interested in learning more about the language is encouraged to participate. While the meeting language will be mainly German, English speakers are very welcome. We will provide English interpretation if needed. Current information about the meetings can always be found at http://www.python-academy.com/user-group/index.html ========================= Leipzig Python User Group ========================= Stammtisch am 09.01.2007 ------------------------- Wir treffen uns am 09.01.2007 um 20:00 Uhr wieder im im Schulungszentrum der Python Academy in Leipzig (http://www.python-academy.de/Schulungszentrum/anfahrt.html). Unser Thema ist diesmal Trac (http://trac.edgewall.org/). Stefan Schwarzer wird die Nutzung von Trac mit Beispielen erläutern. Für das leibliche Wohl wird gesorgt. Wir bitten um kurze Anmeldung per e-mail an: info(a)python-academy.de An den Treffen der Python Anwendergruppe kann jeder teilnehmen, der Interesse an Python hat, die Sprache bereits nutzt oder nutzen möchte. Die Arbeitssprachen des Treffens ist Deutsch. Englisch sprechende Python-Enthusiasten sind trotzdem herzlich eingeladen. Wir übersetzen gern. Aktuelle Informationen zu den Treffen sind immer unter http://www.python-academy.de/User-Group/index.html zu finden.

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[ANN] Initial release of Throxy: throttling HTTP proxy in one Python file
by Johann C. Rocholl Feb. 11, 2007

Feb. 11, 2007

Throxy: throttling HTTP proxy in one Python file * Simulate a slow connection (like dial-up). * Adjustable bandwidth limit for download and upload. * Optionally dump HTTP headers and content for debugging. * Decompress gzip content encoding for debugging. * Multiple connections, without threads (uses asyncore). * Only one source file, written in pure Python. To use it, run throxy.py on your local machine and adjust your browser settings to use 127.0.0.1:8080 as HTTP proxy. Simulate analog modem connection: $ python throxy.py -u28.8 -d57.6 Show all HTTP headers (request & reply): $ python throxy.py -qrs Dump HTTP headers and content to a file, without size limits: $ python throxy.py -rsRS -l0 -L0 -g0 > dump.txt Tell command line tools to use the proxy: $ export http_proxy=127.0.0.1:8080 Command line options: --version show program's version number and exit -h, --help show this help message and exit -i <ip> listen on this interface only (default all) -p <port> listen on this port number (default 8080) -d <kbps> download bandwidth in kbps (default 28.8) -u <kbps> upload bandwidth in kbps (default 28.8) -o allow remote clients (WARNING: open proxy) -q don't show connect and disconnect messages -s dump headers sent to server -r dump headers received from server -S dump content sent to server -R dump content received from server -l <bytes> maximum length of dumped text content (default 1024) -L <bytes> maximum length of dumped binary content (default 256) -g <bytes> maximum size for gzip decompression (default 8192) Subversion repository (or simple download): http://svn.browsershots.org/trunk/throxy/throxy.py Pretty source code (and change history): http://trac.browsershots.org/browser/trunk/throxy/throxy.py This is a very early release. Please send feedback per email. Alternatively, you can file bugs and feature requests here: http://trac.browsershots.org/newticket?component=throxy Cheers, Johann

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FlightFeather Social Networking Platform 0.3.3
by George Belotsky Feb. 9, 2007

Feb. 9, 2007

FlightFeather's goal is "social networking for everyone". This means that *anyone* should have a chance to run a *popular* social networking site -- on minimal hardware, and without wasting bandwidth. Version 0.3.3 is the current development release. It modifies the way the FlightFeather server loads the configuration, protocol, session, and storage modules on startup. The actual loading process now takes place after all options have been parsed. If the "-c" or "--command" option is present, the server does not import these modules at all, since they are not required. The new implementation also fixes a bug that caused the test versions of the above modules to always load, in addition to any modules specified on the command line. The current beta release of FlightFeather is 0.2.8. You can download these releases (free/open source under the GPL) from the "BoSStats" site, which runs on FlightFeather. http://www.bosstats.com/flightfeather.html You are always welcome to participate in the discussion on the "BoSStats" site; the topic covered (what makes a good boss, office politics, etc.) is valuable in and of itself. Please, however, refrain from posting test comments, as the site is live. A Brief Overview of FlightFeather and BoSStats ---------------------------------------------- You can see FlightFeather in action on the BoSStats site. BoSStats is dedicated to improving the world of work: you can discuss what makes a good boss, or share your experiences of office politics. You can also comment and vote on the posts made by others. The application does not set cookies, and no registration is required for anything except voting. http://www.bosstats.com/ BoSStats is a good testbed for FlightFeather, and has value of its own, since meaningful advice about work-related problems is very hard to find. A "Wisdom of Crowds" solution -- particularly with strong privacy protection (see below) -- is a necessary addition to this field. FlightFeather's most important feature is that all write requests generate (or modify) HTML files. In consequence, a pure read (the most common operation) merely serves static pages. The major design focus for FlightFeather are responsiveness and performance; the system should eventually support very high traffic volumes. In addition, FlightFeather allows for a great deal of user privacy -- a critical, rapidly emerging problem in the social networking realm.

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ANN: Cheesecake Service launched and Cheesecake 0.6.1 released
by Grig Gheorghiu Feb. 9, 2007

Feb. 9, 2007

Thanks to the hard work of Michal Kwiatkowski, I'm proud to announce the launch of the Cheesecake Service (<http://pypi.pycheesecake.org/ pypi/>) and the release of Cheesecake 0.6.1 (<http://python.org/pypi/ Cheesecake/0.6.1>). Details here: http://mousebender.wordpress.com/2007/02/09/cheesecake-for-all/ http://agiletesting.blogspot.com/2007/02/cheesecake-service-launched.html Grig

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NYC Python User Group Meeting
by John Clark Feb. 9, 2007

Feb. 9, 2007

Greetings! The next New York City Python Users Group meeting is this Tuesday, Feb. 13th, 6:30pm at at the Millennium Partners office at 666 Fifth Avenue (53rd St. and 5th Ave.) on the 8th Floor. We welcome all those in the NYC area who are interested in Python to attend. However, we need a list of first and last names to give to building security to make sure you can gain access to the building. RSVP to clajo04(a)mac.com to add your name to the list. More information can be found on the yahoo group page: http://tech.groups.yahoo.com/group/nycpython/ Hope to see you there! -John

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GNUmed release 0.2.4.2
by Sebastian Hilbert Feb. 9, 2007

Feb. 9, 2007

GNUmed version 0.2.4.2 has been polished and released ! For the impatient: Go grab your copy at wiki.gnumed.de. Next to bug fixes and code cleanup this release has a nice selection of new features as well ... We need testers. Let us know if it works for you. The GNUmed team worked hard to release yet another stable version. As features are being added more and more success stories of happy users reach us. For this version patient consultation management has been reworked and stabilized. New features include document import via an XSane interface, better episode management, the ability to export documents from the archive to storage media, drag and drop of files onto GNUmed for even easier archival, DICOM viewer integration, a webbrowser link to medical information on the web, a custom database backup script, a stage 2 link to the ifap index drug database as well as a framework for custom script hooks. Localization files were added and updated. All features have been documented over at wiki.gnumed.de. Packages are available for Debian unstable, Ubuntu Feisty, MS Windows and any other GNU/Linux using the archives (tgz). The latest not yet released GNUmed code has been successfully tested on Mac OSX. One of the next releases will include support for the another OS. Have fun and please report bugs and success stories. To stay in touch just head over to blog.gnumed.de every once in a while. -- Sebastian Hilbert Leipzig / Germany [www.gnumed.de] -> PGP welcome, HTML ->/dev/null

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Jython 2.2 Beta1
by Frank Wierzbicki Feb. 8, 2007

Feb. 8, 2007

The Jython development team is proud to announce the release of Jython 2.2's first beta! Get it here: http://sourceforge.net/project/showfiles.php?group_id=12867&package_id=1221… Install like this: java -jar java -jar jython_installer-2.2b1.jar Cheers! -Frank Wierzbicki

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