Mailman 3 May 2009 - Python-announce-list

Python Concurrency Community Bulletin
by Pete 19 May '09

19 May '09

Hi all- Wow, I'm amazed at the response this list has engendered - over 100 people joined in the first 36 hours. Guess it's a hot topic. ;-) I've created http://wiki.python.org/moin/Concurrency/ as a central clearing house for discussion and documentation of concurrency issues. Please add material! I've collected much of what has been sent to this list so far, but more is needed. In particular, http://wiki.python.org/moin/Concurrency/99Bottles needs more examples in other toolkits. I've had a few requests to move this list to concurrency- sig(a)python.org I'm inclined to do so, but wanted to get feedback first. You won't need to resubscribe, but your mail filters will break. If you have strong feelings either way, please email me *privately* by end of day Thursday. I look forward to many interesting discussions. Python! ;-) --Pete

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Boxee Python-based API Dev Challenge
by avner (＠boxee) 18 May '09

18 May '09

the new boxee Python-based API enables developers to build and publish apps for boxee users. while people are working on a variety of boxee apps, we thought it would be a good idea to provide some extra incentive for the developers. the boxee dev challenge will have 3 categories: Video, Music and Photos. in each category we will have a People’s Choice award and a Judge’s Choice award: People’s Choice Award: Drobo Judge’s Choice Award: Sony Bravia XBR9 46″ for more information visit http://blog.boxee.tv/ or http://blog.boxee.tv/2009/05/05/announcing-the-boxee-app-dev-challenge/

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SQLObject 0.10.6
by Oleg Broytmann 18 May '09

18 May '09

Hello! I'm pleased to announce version 0.10.6, a minor bugfix release of 0.10 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/0.10.6 News and changes: http://sqlobject.org/News.html What's New ========== News since 0.10.5 ----------------- * Better support for Python 2.6: do not import the deprecated sets module. * Two bugs in SQLiteConnection.columnsFromSchema() were fixed: use sqlmeta.idName instead of 'id'; convert default 'NULL' to None. * Use sqlmeta.idName instead of 'id' in all connection classes. * Fixed a bug that prevented to override per class _connection if there is sqlhub.processConnection. 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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SQLObject 0.9.11
by Oleg Broytmann 18 May '09

18 May '09

Hello! I'm pleased to announce version 0.9.11, a minor bugfix release of 0.9 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/0.9.11 News and changes: http://sqlobject.org/News.html What's New ========== News since 0.9.10 ---------------- * Two bugs in SQLiteConnection.columnsFromSchema() were fixed: use sqlmeta.idName instead of 'id'; convert default 'NULL' to None. * Use sqlmeta.idName instead of 'id' in all connection classes. * Fixed a bug that prevented to override per class _connection if there is sqlhub.processConnection. 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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web2py 1.62.1
by Massimo Di Pierro 18 May '09

18 May '09

Hello everybody web2py 1.62.1 is out http://www.web2py.com Here is a video of some of the new features: http://www.screencast.com/t/OH8Uc5ab6 New features: - admin interface reads web2py twits - deploy on Google App Engine directly from the web based admin - commit your apps to mercurial repos directly from admin (requires easy_install mercurial) - every app has its own ajax shell (allows multiline commands and database interaction) - when files uploaded in database are downloaded, original filename is used to set content-disposition. - new "welcome" scaffolding app has Authentication, Role Based Access Control, CRUD, and Menu turned on by default - choice of third party authentication mechanisms including BASIC, GMAIL, LDAP - new .w2p file format for distributing zipped applications - new MENU helper for pure CSS popup and cascading menus. - WingIDE support - Better internationalization - runs with Python 2.4, 2.5, 2.6.2 and some of it runs on Jython and IronPython (the database drivers and web server do not). The rest is backward compatible as usual. IMPORTANT: web2py includes the only Database Abstraction Layer / ORM that works on both the Google App Engine and relational databases (sqlite, mysql, postgresql, mssql, firebird, oracle, db2). You write once and it runs everywhere. You DO NOT NEED to use the Google API to access the Google Datastore as you do when you use other web frameworks on GAE. web2py writes SQL for you (and you don't even need to see it) and automatically creates a web based interface to your data. web2py includes a web base administrative interface for installing, creating, editing, debugging, testing, deploying and managing your applications. You only use the os shell if you chose to. web2py includes a ticketing system that logs all errors and issues tickets to visitors. web2py runs everywhere python runs including iPhone, Windows CE, N800 and of course, Windows, Mac, Linux. Massimo

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SciPy 2009 Call for Papers
by Jarrod Millman 18 May '09

18 May '09

========================== SciPy 2009 Call for Papers ========================== SciPy 2009, the 8th Python in Science conference, will be held from August 18-23, 2009 at Caltech in Pasadena, CA, USA. Each year SciPy attracts leading figures in research and scientific software development with Python from a wide range of scientific and engineering disciplines. The focus of the conference is both on scientific libraries and tools developed with Python and on scientific or engineering achievements using Python. We welcome contributions from the industry as well as the academic world. Indeed, industrial research and development as well academic research face the challenge of mastering IT tools for exploration, modeling and analysis. We look forward to hearing your recent breakthroughs using Python! Submission of Papers ==================== The program features tutorials, contributed papers, lightning talks, and bird-of-a-feather sessions. We are soliciting talks and accompanying papers (either formal academic or magazine-style articles) that discuss topics which center around scientific computing using Python. These include applications, teaching, future development directions, and research. A collection of peer-reviewed articles will be published as part of the proceedings. Proposals for talks are submitted as extended abstracts. There are two categories of talks: Paper presentations These talks are 35 minutes in duration (including questions). A one page abstract of no less than 500 words (excluding figures and references) should give an outline of the final paper. Proceeding papers are due two weeks after the conference, and may be in a formal academic style, or in a more relaxed magazine-style format. Rapid presentations These talks are 10 minutes in duration. An abstract of between 300 and 700 words should describe the topic and motivate its relevance to scientific computing. In addition, there will be an open session for lightning talks during which any attendee willing to do so is invited to do a couple-of-minutes-long presentation. If you wish to present a talk at the conference, please create an account on the website (http://conference.scipy.org). You may then submit an abstract by logging in, clicking on your profile and following the "Submit an abstract" link. Submission Guidelines --------------------- * Submissions should be uploaded via the online form. * Submissions whose main purpose is to promote a commercial product or service will be refused. * All accepted proposals must be presented at the SciPy conference by at least one author. * Authors of an accepted proposal can provide a final paper for publication in the conference proceedings. Final papers are limited to 7 pages, including diagrams, figures, references, and appendices. The papers will be reviewed to help ensure the high-quality of the proceedings. For further information, please visit the conference homepage: http://conference.scipy.org. Important Dates =============== * Friday, June 26: Abstracts Due * Saturday, July 4: Announce accepted talks, post schedule * Friday, July 10: Early Registration ends * Tuesday-Wednesday, August 18-19: Tutorials * Thursday-Friday, August 20-21: Conference * Saturday-Sunday, August 22-23: Sprints * Friday, September 4: Papers for proceedings due Tutorials ========= Two days of tutorials to the scientific Python tools will precede the conference. There will be two tracks: one for introduction of the basic tools to beginners and one for more advanced tools. Tutorials will be announced later. Birds of a Feather Sessions =========================== If you wish to organize a birds-of-a-feather session to discuss some specific area of scientific development with Python, please contact the organizing committee. Executive Committee =================== * Jarrod Millman, UC Berkeley, USA (Conference Chair) * Gaël Varoquaux, INRIA Saclay, France (Program Co-Chair) * Stéfan van der Walt, University of Stellenbosch, South Africa (Program Co-Chair) * Fernando Pérez, UC Berkeley, USA (Tutorial Chair)

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ANN: wxPython 2.8.10.1
by Robin Dunn 17 May '09

17 May '09

Announcing ---------- The 2.8.10.1 release of wxPython is now available for download at http://wxpython.org/download.php. This release fixes the problem with using Python 2.6's default manifest, and updates wxcairo to work with the latest PyCairo. A summary of changes is listed below and also at http://wxpython.org/recentchanges.php. Source code is available as a tarball and a source RPM, as well as binaries for Python 2.4, 2.5 and 2.6, for Windows and Mac, as well some packages for various Linux distributions. What is wxPython? ----------------- wxPython is a GUI toolkit for the Python programming language. It allows Python programmers to create programs with a robust, highly functional graphical user interface, simply and easily. It is implemented as a Python extension module that wraps the GUI components of the popular wxWidgets cross platform library, which is written in C++. wxPython is a cross-platform toolkit. This means that the same program will usually run on multiple platforms without modifications. Currently supported platforms are 32-bit and 64-bit Microsoft Windows, most Linux or other Unix-like systems using GTK2, and Mac OS X 10.4+. In most cases the native widgets are used on each platform to provide a 100% native look and feel for the application. Changes in 2.8.10.1 ------------------- wx.grid.Grid: Added methods CalcRowLabelsExposed, CalcColLabelsExposed, CalcCellsExposed, DrawRowLabels, DrawRowLabel, DrawColLabels, and DrawColLabel to the Grid class. Added the wx.lib.mixins.gridlabelrenderer module. It enables the use of label renderers for Grids that work like the cell renderers do. See the demo for a simple sample. Solved the manifests problem with Python 2.6 on Windows. wxPython now programatically creates its own activation context and loads a manifest in that context that specifies the use of the themable common controls on Windows XP and beyond. This also means that the external manifest files are no longer needed for the other versions of Python. wx.Colour: Updated the wx.Colour typemaps and also the wx.NamedColour constructor to optionally allow an alpha value to be passed in the color string, using these syntaxes: "#RRGGBBAA" or "ColourName:AA" wx.lib.wxcairo: Fixed a problem resulting from PyCairo changing the layout of their C API structure in a non-binary compatible way. The new wx.lib.wxcairo is known to now work with PyCairo 1.6.4 and 1.8.4, and new binaries for Windows are available online at http://wxpython.org/cairo/ -- Robin Dunn Software Craftsman http://wxPython.org

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Concurrency Email List
by Pete 16 May '09

16 May '09

python-concurrency(a)googlegroups.com is a new email list for discussion of concurrency issues in python. It arose out of Dave Beazley's class on the subject last week: http://www.dabeaz.com/chicago/concurrent.html The list wills serve as a forum for discussion of such topics as: * threads * multiprocessing * asynchronous * coroutines * the GIL Hope to see you there! Join at http://groups.google.com/group/python-concurrency/ --Pete

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mystic-0.1a2
by Michael McKerns 15 May '09

15 May '09

mystic: a simple model-independent inversion framework http://www.its.caltech.edu/~mmckerns/software.html # Version 0.1a2: 05/15/09 # Highlights Primarily a bugfix and documentation release. Solvers: - Differential Evolution (x2) - Nelder-Mead Simplex - Powell's Directional Search Method API: - solvers share a common interface - solvers can be called as a unique function or using API - solvers with built-in optimization control handlers - configurable solvers can be bound or unbound - configurable solvers have user-provided or random initial points - configurable termination conditions - configurable mutation strategies (for DE solver) Tools: - configurable 2-variable monitors - wrap function with counter or bounds - cost-function generator - standard set of optimization test models - set of example scripts for test cases Documentation: - User's Guide with tutorials - online Reference Manual --- Mike McKerns California Institute of Technology http://www.its.caltech.edu/~mmckerns

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ANN: ActivePython 2.6.2.2, 3.1.0b1.0, 2.5.4.4 is now available
by Sridhar Ratnakumar 15 May '09

15 May '09

I'm happy to announce that ActivePython 2.6.2.2, 3.1.0b1.0 and 2.5.4.4 are now available for download from: http://www.activestate.com/activepython/ This is a patch release that updates ActivePython to core Python 2.6.2 and 3.1b2. This release also contains updates to Tcl/Tk 8.5.7 and Tix 8.4.3. We recommend that you try 2.6 version first. See the release notes for full details: http://docs.activestate.com/activepython/2.6/relnotes.html What is ActivePython? --------------------- ActivePython is ActiveState's binary distribution of Python. Builds for Windows, Mac OS X, Linux, HP-UX and AIX are made freely available. ActivePython includes the Python core and the many core extensions: zlib and bzip2 for data compression, the Berkeley DB (bsddb) and SQLite (sqlite3) database libraries, OpenSSL bindings for HTTPS support, the Tix GUI widgets for Tkinter, ElementTree for XML processing, ctypes (on supported platforms) for low-level library access, and others. The Windows distribution ships with PyWin32 -- a suite of Windows tools developed by Mark Hammond, including bindings to the Win32 API and Windows COM. See this page for full details: http://docs.activestate.com/activepython/2.6/whatsincluded.html As well, ActivePython ships with a wealth of documentation for both new and experienced Python programmers. In addition to the core Python docs, ActivePython includes the "What's New in Python" series, "Dive into Python", the Python FAQs & HOWTOs, and the Python Enhancement Proposals (PEPs). An online version of the docs can be found here: http://docs.activestate.com/activepython/2.6/ We would welcome any and all feedback to: ActivePython-feedback(a)activestate.com Please file bugs against ActivePython at: http://bugs.activestate.com/query.cgi?set_product=ActivePython On what platforms does ActivePython run? ---------------------------------------- ActivePython includes installers for the following platforms: - Windows/x86 - Windows/x64 (aka "AMD64") - Mac OS X - Linux/x86 - Linux/x86_64 (aka "AMD64") - Solaris/SPARC - Solaris/x86 - HP-UX/PA-RISC - AIX/PowerPC Extra Bits ---------- ActivePython releases also include the following: - ActivePython26.chm: An MS compiled help collection of the full ActivePython documentation set. Linux users of applications such as xCHM might find this useful. This package is installed by default on Windows. Extra bits are available from: http://downloads.activestate.com/ActivePython/etc/ Thanks, and enjoy! The Python Team -- Sridhar Ratnakumar sridharr at activestate.com

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