Mailman 3 September 2009 - Python-announce-list

python-graph-1.6.2 released
by Pedro Matiello Sept. 30, 2009

Sept. 30, 2009

python-graph release 1.6.2 http://code.google.com/p/python-graph/ ------------------------------------------------------------------------ python-graph is a library for working with graphs in Python. This software provides a suitable data structure for representing graphs and a whole set of important algorithms. The code is appropriately documented and API reference is generated automatically by epydoc. Provided features and algorithms: * Support for directed, undirected, weighted and non-weighted graphs * Support for hypergraphs * Canonical operations * XML import and export * DOT-Language output (for usage with Graphviz) * Random graph generation * Accessibility (transitive closure) * Breadth-first search * Critical path algorithm * Cut-vertex and cut-edge identification * Depth-first search * Heuristic search (A* algorithm) * Identification of connected components * Minimum spanning tree (Prim's algorithm) * Mutual-accessibility (strongly connected components) * Shortest path search (Dijkstra's algorithm) * Topological sorting * Transitive edge identification The 1.6.x series is our refactoring series. Along the next releases, we'll change the API so we can better prepare the codebase to new features. If you want a softer, directed transition, upgrade your code to every release in the 1.6.x series. On the other hand, if you'd rather fix everything at once, you can wait for 1.7.0. Download: http://code.google.com/p/python-graph/downloads/list (tar.bz2, zip and egg packages are available.) Installing: If you have easy_install on your system, you can simply run: # easy_install python-graph-core And, optionally, for Dot-Language support: # easy_install python-graph-dot

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SQLObject 0.11.2
by Oleg Broytman Sept. 30, 2009

Sept. 30, 2009

Hello! I'm pleased to announce version 0.11.2, 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/0.11.2 News and changes: http://sqlobject.org/News.html What's New ========== News since 0.11.1 ----------------- * Fixed a bug in logging to console - convert unicode to str. * Fixed an obscure bug in ConnectionHub triggered by an SQLObject class whose instances can be coerced to boolean False. 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 0.10.8
by Oleg Broytman Sept. 30, 2009

Sept. 30, 2009

Hello! I'm pleased to announce version 0.10.8, 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/0.10.8 News and changes: http://sqlobject.org/News.html What's New ========== News since 0.10.7 ----------------- * Fixed a bug in logging to console - convert unicode to str. * Fixed an obscure bug in ConnectionHub triggered by an SQLObject class whose instances can be coerced to boolean False. 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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python-colormath 1.0.5 Released
by Greg Taylor Sept. 29, 2009

Sept. 29, 2009

An error in the CIE2000 Delta E equation has been found and corrected, necessitating the immediate release of python-colormath 1.0.5. All users of the 1.x series are encouraged to upgrade to avoid this mathematical error. What new in 1.0.5? =============== * The examples and unit tests may be ran directly from their directories now, without installing the package. * Updated the setup.py file to include the examples and LICENSE.txt file in the source distribution. * Fixed a small error in the CIE2000 Delta E formula. This could had resulted in some minor skew in calculations. What is python-colormath? ==================== python-colormath is a developer-oriented module that abstracts a number of color math operations behind a small set of classes representing color spaces (IE: RGB, CIE Lab, XYZ, and LCH, etc.). Color conversions, delta E comparisons, and density calculations are all relatively involved, but are hid behind the simple API. Where is python-colormath? ===================== Getting Started/Website/Development: http://code.google.com/p/python-colormath/ Documentation: http://code.google.com/p/python-colormath/w/list Download: http://pypi.python.org/pypi/colormath/ -- Gregory Taylor

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ANN: Veusz 1.5 released
by Jeremy Sanders Sept. 28, 2009

Sept. 28, 2009

Veusz 1.5 --------- Velvet Ember Under Sky Zenith ----------------------------- http://home.gna.org/veusz/ Veusz is Copyright (C) 2003-2009 Jeremy Sanders <jeremy(a)jeremysanders.net> Licenced under the GPL (version 2 or greater). Veusz is a Qt4 based scientific plotting package. It is written in Python, using PyQt4 for display and user-interfaces, and numpy for handling the numeric data. Veusz is designed to produce publication-ready Postscript/PDF output. The user interface aims to be simple, consistent and powerful. Veusz provides a GUI, command line, embedding and scripting interface (based on Python) to its plotting facilities. It also allows for manipulation and editing of datasets. Changes in 1.5: * EMF export (requires pyemf and PyQt snapshot) * Character encodings supported in data import * Rewritten stylesheet handling. User can now set defaults in document for all settings. This is now under the Edit->Default Styles dialog. * A default stylesheet can be loaded for all new documents (set in preferences dialog) * Linked datasets saved in documents now use relative filename paths (with absolute paths as fallback) * Axes can now have text labels of points plotted along them (choose "labels" as axis mode) * Dataset points can be scaled to different sizes according to another dataset (this is the "Scale markers" option for point plotters) More minor changes * Custom delimiter support in CSV data importer * Add SetDataText and support text in GetData in command API * \dot and \bar added to LaTeX renderer * Option to change icon sizes displayed * Rearrange toolbar icons and create data and widget operation toolbars * Zoom button remembers previous usage * Conversion from 1D->2D datasets more robust * Expression datasets can now be a constant value * Uses colors form theme better and allow user to change some UI colors in preferences * Fix contours if coordinates can be infinite (e.g. log scaling with zero value) * nan/inf are no longer ignored when the ignore text option is selected in import dialog * Several other minor UI changes and bugfixes Important note * As the way defaults are used has been rewritten, default values are no longer saved on a per-user basis but are saved in a stylesheet and is saved in the document. You cannot currently set defaults on a widget- name basis. Features of package: * X-Y plots (with errorbars) * Line and function plots * Contour plots * Images (with colour mappings and colorbars) * Stepped plots (for histograms) * Bar graphs * Plotting dates * Fitting functions to data * Stacked plots and arrays of plots * Plot keys * Plot labels * Shapes and arrows on plots * LaTeX-like formatting for text * EPS/PDF/PNG/SVG/EMF export * Scripting interface * Dataset creation/manipulation * Embed Veusz within other programs * Text, CSV and FITS importing Requirements: Python (2.4 or greater required) http://www.python.org/ Qt >= 4.3 (free edition) http://www.trolltech.com/products/qt/ PyQt >= 4.3 (SIP is required to be installed first) http://www.riverbankcomputing.co.uk/pyqt/ http://www.riverbankcomputing.co.uk/sip/ numpy >= 1.0 http://numpy.scipy.org/ Optional: Microsoft Core Fonts (recommended for nice output) http://corefonts.sourceforge.net/ PyFITS >= 1.1 (optional for FITS import) http://www.stsci.edu/resources/software_hardware/pyfits pyemf >= 2.0.0 (optional for EMF export) http://pyemf.sourceforge.net/ For EMF export, PyQt-x11-gpl-4.6-snapshot-20090906 or better is required, to fix a bug in the C++ wrapping For documentation on using Veusz, see the "Documents" directory. The manual is in pdf, html and text format (generated from docbook). Issues with the current version: * Due to Qt, hatched regions sometimes look rather poor when exported to PostScript, PDF or SVG. * Clipping of data does not work in the SVG export as Qt currently does not support this. * Due to a bug in Qt, some long lines, or using log scales, can lead to very slow plot times under X11. This problem is seen with dashed/dotted lines. It is fixed by upgrading to Qt-4.5.1 (the Veusz binary version includes this Qt version). Switching off antialiasing in the options may help this. If you enjoy using Veusz, I would love to hear from you. Please join the mailing lists at https://gna.org/mail/?group=veusz to discuss new features or if you'd like to contribute code. The latest code can always be found in the SVN repository. Jeremy Sanders

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EPD Webinar October 2nd: How do I...process signals with EPD? (wait list for non-subscribers!)
by Amenity Applewhite Sept. 27, 2009

Sept. 27, 2009

Having trouble viewing this email? Click here You're receiving this email because of your relationship with Enthought, Inc.. Please confirm your continued interest in receiving email from us. You may unsubscribe if you no longer wish to receive our emails. Friday, October 2nd 1pm CDT How do I...process signals with EPD? Hello! We wanted to let you know that next week we'll host another installment of our popular EPD webinar series. Although only EPD Basic or above subscribers are guaranteed seats at EPD webinars, we invite non-subscribers to add their names to the waiting list for each event. If there are available seats, you will be notified by next Thursday and given access to the webinar. Links to the waiting lists and upcoming topics are available here. These events feature detailed demonstrations of powerful Python techniques that Enthought developers use to enhance our applications or development process. Participants are often invited to participate in the demonstration, and are welcome to join the interactive VOIP discussion later in the session. This is a great opportunity to learn new methods and interact with our expert developers. If you have topics you'd like to see addressed during the webinar, feel free to let us know at media(a)enthought.com. How do I...process signals with EPD? One of the useful tools in the the Enthought Python Distribution (EPD) is the signal processing module of SciPy. In this webinar we will demonstrate how to analyze and process signals using the Fast Fourier Transform (FFT), and the tools in scipy.signal. Topics to be covered include designing and applying time-domain and frequency-domain filters, down-sampling data, and dealing with data streams by processing chunks at a time while handling edge-effects. Once again, to add your name to the wait-list, visit our site. We hope to see you there! Thanks, Enthought Media Quick Links... Enthought.com Enthought Python Distribution (EPD) Enthought Webinars @Facebook @Twitter Forward email This email was sent to amenity.applewhite(a)gmail.com by amenity(a)enthought.com . Update Profile/Email Address | Instant removal with SafeUnsubscribe™ | Privacy Policy. Enthought, Inc. | 515 Congress Ave. | Suite 2100 | Austin | TX | 78701

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ANN: PyQt v4.6 Released
by Phil Thompson Sept. 27, 2009

Sept. 27, 2009

PyQt v4.6 has been released and is available from http://www.riverbankcomputing.com/software/pyqt/. PyQt is a comprehensive set of bindings for the Qt application and UI framework from Nokia. It supports the same platforms as Qt (Windows, Linux and MacOS/X). PyQt supports Python v3 and Python v2.3 and later. The highlights of this release include: - alternate, more Pythonic, APIs have been implemented for QDate, QDateTime, QString, QTextStream, QTime, QUrl and QVariant. Applications may select a particular API. By default Python v3 uses the new versions and Python v2 uses the old versions - Qt properties can be initialised, and signals connected using keyword arguments passed when creating an instance. Properties and signals can also be set using the QObject.pyqtConfigure() method. Windows installers are provided for the GPL version of PyQt which contains everything needed for PyQt development (including Qt, Qt Designer and QScintilla) except Python itself. PyQt v4 is implemented as a set of 18 extension modules containing over 400 classes and over 6,000 functions and methods. QtCore The non-GUI infrastructure including event loops, threads, i18n, Unicode, signals and slots, user and application settings, mapped files and shared memory. QtDesigner A set of classes that allow the Qt Designer GUI design tool to be extended with PyQt. QtGui A rich collection of GUI widgets. QtHelp A set of classes for creating and viewing searchable documentation and being able to integrate online help with PyQt applications. It includes the C++ port of the Lucene text search engine. QtNetwork A set of classes to support TCP and UDP socket programming and higher level protocols (eg. HTTP, SSL). QtOpenGL A set of classes that allows PyOpenGL to render onto Qt widgets. QtScript A set of classes that implements a JavaScript interpreter. Python objects may be exposed in the interpreter as JavaScript objects. QtScriptTools A debugger for the JavaScript interpreter. QtSql A set of classes that implement SQL data models and interfaces to industry standard databases. The Windows installers include support for SQLite, MySQL, PostgreSQL and ODBC. QtSvg A set of classes to render SVG files onto Qt widgets. QtTest A set of classes to automate unit testing of PyQt applications and GUIs. QtWebKit This implements a web browser engine based on the WebKit engine used by Apple's Safari browser. It allows the methods and properties of Python objects to be published and appear as JavaScript objects to scripts embedded in HTML pages. QtXML A set of classes that implement DOM and SAX parsers. QtXMLPatterns A set of classes that implement XQuery and XPath support for XML and custom data models. QtAssistant A set of classes that enables the Qt Assistant online help browser to be integrated with an application. QAxContainer A set of classes for Windows that allows the integration of ActiveX controls and COM objects. phonon A cross-platform multimedia framework that enables the use of audio and video content in PyQt applications. DirectX is used as the Windows backend, QuickTime as the MacOS/X backend, and GStreamer as the Linux backend. DBus PyQt includes dbus.mainloop.qt that allows the Qt event loop to be used with the standard DBus Python bindings. PyQt includes the pyuic4 utility which generates Python code to implement user interfaces created with Qt Designer in the same way that the uic utility generates C++ code. It is also able to load Designer XML files dynamically. PyQt is available under the GPL and a commercial license. Unlike Qt, PyQt is not available under the LGPL. The commercial PyQt license allows GPL applications to be relicensed at any time.

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ANN: SIP v4.9 Released (Python Bindings Generator)
by Phil Thompson Sept. 27, 2009

Sept. 27, 2009

SIP v4.9 has been released and can be downloaded from http://www.riverbankcomputing.com/software/sip/. SIP is a tool for generating Python modules that wrap C or C++ libraries. It is similar to SWIG. It is used to generate PyQt and PyKDE. The SIP license is similar to the Python License and is also licensed under the GPL v2 and v3. SIP runs on Windows, UNIX, Linux and MacOS/X. SIP requires Python v2.3 or later and fully supports Python v3. The main focus of this release is to allow alternate, incompatible wrappings of classes and functions to be defined which can then be selected by an application at runtime. This allows application developers to manage the migration from an old, deprecated API to a new one. Other features of SIP include: - extension modules are implemented as a single binary .pyd or .so file (no Python stubs) - support for Python new-style classes - the ability to specify the super-type and meta-type used to wrap instances - generated modules are quick to import, even for large libraries - thread support - the ability to re-implement C++ abstract and virtual methods in Python - the ability to define Python classes that derive from abstract C++ classes - the ability to spread a class hierarchy across multiple Python modules - support for C++ namespaces - support for C++ exceptions - support for C++ operators - an extensible build system written in Python that supports over 50 platform/compiler combinations - the generation of API files for IDEs that support autocompletion and call tips.

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[ANNOUNCE] PyPoppler 0.12.1
by Gian Mario Tagliaretti Sept. 27, 2009

Sept. 27, 2009

I am pleased to announce version 0.12.1 of the Python bindings for Poppler. This is a quick follow up to add a couple of new objects that were missing from the defs, h2defs didn't pick them up automatically. It is available at: http://launchpad.net/poppler-python/trunk/development/+download/pypoppler-0… md5: 1a89e5ed3042afc81bbd4d02e0cf640a PyPoppler 0.12.1 (Sep 27 2009) ================================== o Add LayersIter boxed type o Add Layers gobject type Blurb: ====== Poppler[1] is a PDF rendering library based on the xpdf-3.0 code base. PyPoppler is a wrapper which exposes the poppler API to the python world. It is fairly complete, most of the API are covered. The documentation is actually missing, help wanted :) Like the Poppler library itself, PyPoppler is licensed under the GNU GPL. PyPoppler requires: ===================== o Poppler >= 0.12.0 o PyGObject >= 2.10.1 o PyGTK >= 2.10.0 o PyCairo >= 1.8.4 Bug reports should go to https://launchpad.net/poppler-python [1] http://poppler.freedesktop.org/ cheers -- Gian Mario Tagliaretti GNOME Foundation member gianmt(a)gnome.org

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Cython 0.11.3 released.
by Robert Bradshaw Sept. 27, 2009

Sept. 27, 2009

We are happy to announce the release of Cython 0.11.3 (http:// cython.org), which is the accumulation of numerous bugfixes and other work since the beginning of the summer. Some new features include a cython freeze utility that allows one to compile several modules into a single executable (Mark Lodato) and the ability to enable profiling Cython code with Python profilers using the new cython.profile directive. We also had two successful summer of code projects, but neither is quite ready to be merged in at this time. This will probably be the last minor release before Cython 0.12. Thanks to Grant Baillie, Stefan Behnel, Robert Bradshaw, Lisandro Dalcin, Mark Lodato, Andrey Plotnikov, Dag Sverre Seljebotn, and Kurt Smith for contributing to this release. What is Cython? ===================== Cython is a language that makes writing C extensions for the Python language as easy as Python itself. Cython is based on the well-known Pyrex, but supports more cutting edge functionality and optimizations. The Cython language is very close to the Python language, but Cython additionally supports calling C functions and declaring C types on variables and class attributes. This allows the compiler to generate very efficient C code from Cython code. This makes Cython the ideal language for wrapping for external C libraries, and for fast C modules that speed up the execution of Python code. Where to get it? ===================== http://cython.org/ http://pypi.python.org/pypi/Cython/

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LAST CHANCE: PyCon 2010: Call for Proposals
by Aahz Sept. 27, 2009

Sept. 27, 2009

Just four more days to propose a presentation! Call for proposals -- PyCon 2010 -- <http://us.pycon.org/2010/> =============================================================== Due date: October 1st, 2009 Want to showcase your skills as a Python Hacker? Want to have hundreds of people see your talk on the subject of your choice? Have some hot button issue you think the community needs to address, or have some package, code or project you simply love talking about? Want to launch your master plan to take over the world with python? PyCon is your platform for getting the word out and teaching something new to hundreds of people, face to face. Previous PyCon conferences have had a broad range of presentations, from reports on academic and commercial projects, tutorials on a broad range of subjects and case studies. All conference speakers are volunteers and come from a myriad of backgrounds. Some are new speakers, some are old speakers. Everyone is welcome so bring your passion and your code! We're looking to you to help us top the previous years of success PyCon has had. PyCon 2010 is looking for proposals to fill the formal presentation tracks. The PyCon conference days will be February 19-22, 2010 in Atlanta, Georgia, preceded by the tutorial days (February 17-18), and followed by four days of development sprints (February 22-25). Online proposal submission is open now! Proposals will be accepted through October 1st, with acceptance notifications coming out on November 15th. For the detailed call for proposals, please see: <http://us.pycon.org/2010/conference/proposals/> For videos of talks from previous years - check out: <http://pycon.blip.tv> We look forward to seeing you in Atlanta! -- Aahz (aahz(a)pythoncraft.com) <*> http://www.pythoncraft.com/ "Look, it's your affair if you want to play with five people, but don't go calling it doubles." --John Cleese anticipates Usenet

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[ANNOUNCE] PyPoppler 0.12.0
by Gian Mario Tagliaretti Sept. 26, 2009

Sept. 26, 2009

I am pleased to announce version 0.12.0 of the Python bindings for Poppler. It is available at: http://launchpad.net/poppler-python/trunk/development/+download/pypoppler-0… md5: 78e9655067b8da2c8ad2565b2620e2f9 PyPoppler 0.12.0 (Sep 26 2009) ================================== o Update aclocal.m4 o Wrap new poppler 0.12 API Blurb: ====== Poppler[1] is a PDF rendering library based on the xpdf-3.0 code base. PyPoppler is a wrapper which exposes the poppler API to the python world. It is fairly complete, most of the API are covered. The documentation is actually missing, help wanted :) Like the Poppler library itself, PyPoppler is licensed under the GNU GPL. PyPoppler requires: ===================== o Poppler >= 0.12.0 o PyGObject >= 2.10.1 o PyGTK >= 2.10.0 o PyCairo >= 1.8.4 Bug reports should go to https://launchpad.net/poppler-python [1] http://poppler.freedesktop.org/ cheers -- Gian Mario Tagliaretti GNOME Foundation member gianmt(a)gnome.org

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Jython 2.5.1 Final is out!
by Frank Wierzbicki Sept. 26, 2009

Sept. 26, 2009

On behalf of the Jython development team, I'm pleased to announce that Jython 2.5.1 final is available for download: https://sourceforge.net/projects/jython/files/jython/2.5.1/jython_installer… - See the http://wiki.python.org/jython/InstallationInstructions for installation instructions. Jython 2.5.1 fixes a number of bugs, including some major errors when using coroutines and when using relative imports, as well as a potential data loss bug when writing to files in append mode. Please see the NEWS file for detailed release notes. Please report any bugs that you find: http://bugs.jython.org - Thanks! -Frank

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Distribute 0.6.2 released
by Tarek Ziadé Sept. 26, 2009

Sept. 26, 2009

Hello On behalf of the Distribute team, I am very proud to announce the release of Distribute 0.6.2. http://pypi.python.org/pypi/distribute/0.6.2 This release is the first release that is compatible with Python 3, kudos to Martin von Löwis, Lennart Regebro and Alex Grönholm and the ones I am missing, on this work ! (see the contributors.txt file) The next 0.6.3 release will focus on eliminating the remaining Setuptools bugs, while we are actively working on a full refactoring in the 0.7 series. If you have any comment, feedback or if you want to contribute, please drop a line in distutils-sig(a)python.org, or in our bug tracker (http://bitbucket.org/tarek/distribute/issues) * CHANGES * * Added Python 3 support. see docs/python3.txt This closes http://bitbucket.org/tarek/distribute/issue/39. * Added option to run 2to3 automatically when installing on Python 3. This closes http://bitbucket.org/tarek/distribute/issue/31. * Fixed invalid usage of requirement.parse, that broke develop -d. This closes http://bugs.python.org/setuptools/issue44. * Fixed script launcher for 64-bit Windows. This closes http://bugs.python.org/setuptools/issue2. * KeyError when compiling extensions. This closes http://bugs.python.org/setuptools/issue41. * Fixed bootstrap not working on Windows. This closes http://bitbucket.org/tarek/distribute/issue/49. * Fixed 2.6 dependencies. This closes http://bitbucket.org/tarek/distribute/issue/50. * Make sure setuptools is patched when running through easy_install This closes http://bugs.python.org/setuptools/issue40. Regards, Tarek -- Tarek Ziadé | http://ziade.org | オープンソースはすごい!

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Python-URL! - weekly Python news and links (Sep 26)
by Gabriel Genellina Sept. 26, 2009

Sept. 26, 2009

QOTW: "Forget ethical. We can do his homework for him, we can perhaps pass exams for him, maybe graduate for him, and then with our luck, he'll get a job in our office and we get to do his work for him." - Mel http://groups.google.com/group/comp.lang.python/msg/8f7c1fa393c23476 How to set up printing/logging so they still work even with Unicode encoding errors: http://groups.google.com/group/comp.lang.python/t/8e93b219139532a6/ Review of available parsers/lexers: http://groups.google.com/group/comp.lang.python/t/d45d15da2cf4f304/ How is it behind the scenes at the first Spanish-language Pycon? http://www.taniquetil.com.ar/facundo/pyconar09_report.txt Developing a custom data warehouse vs. out-of-the-box ETL tool: http://groups.google.com/group/comp.lang.python/t/d679836c1dba554e/ How to delete items from list given their indices: http://groups.google.com/group/comp.lang.python/t/de185f9212e53fb6/ Determining the target name in an assignment: http://groups.google.com/group/comp.lang.python/t/fe92da9d8952c376/ http://groups.google.com/group/comp.lang.python/t/c312ffd8011a0e17/ Best way to distribute Python programs: http://groups.google.com/group/comp.lang.python/t/229c2c0059f5be8a/ In some corner cases, a module could get imported twice: http://groups.google.com/group/comp.lang.python/t/ca861eb01989942/ Very creative answers to a really trivial homework question: http://groups.google.com/group/comp.lang.python/t/c8630b7ec60df888/ Coroutines and generators: http://groups.google.com/group/comp.lang.python/t/62160f74d76e3cbc/ Getting "the other" element from a dictionary containing only two keys: http://groups.google.com/group/comp.lang.python/t/4fa0ce86e4b97850/ Review of several webapp testing tools: http://groups.google.com/group/comp.lang.python/t/58b7513596ab648c/ J. P. Calderone shares his reccomendations on structuring a Python project: http://groups.google.com/group/comp.lang.python/t/2122c45d0d913a31/ Python beginner asks for comments about his coding style: http://groups.google.com/group/comp.lang.python/t/b6e19551381cf869/ Basic logging usage explained: http://groups.google.com/group/comp.lang.python/t/6359d3ac2089bddc/ Checking for possible error conditions in advance isn't a substitute for correct exception handling: http://groups.google.com/group/comp.lang.python/t/fd78edec3c2ef889/ ======================================================================== Everything Python-related you want is probably one or two clicks away in these pages: Python.org's Python Language Website is the traditional center of Pythonia http://www.python.org Notice especially the master FAQ http://www.python.org/doc/FAQ.html PythonWare complements the digest you're reading with the marvelous daily python url http://www.pythonware.com/daily Just beginning with Python? This page is a great place to start: http://wiki.python.org/moin/BeginnersGuide/Programmers The Python Papers aims to publish "the efforts of Python enthusiasts": http://pythonpapers.org/ The Python Magazine is a technical monthly devoted to Python: http://pythonmagazine.com Readers have recommended the "Planet" site: http://planet.python.org comp.lang.python.announce announces new Python software. Be sure to scan this newsgroup weekly. http://groups.google.com/group/comp.lang.python.announce/topics Python411 indexes "podcasts ... to help people learn Python ..." Updates appear more-than-weekly: http://www.awaretek.com/python/index.html The Python Package Index catalogues packages. http://www.python.org/pypi/ Much of Python's real work takes place on Special-Interest Group mailing lists http://www.python.org/sigs/ Python Success Stories--from air-traffic control to on-line match-making--can inspire you or decision-makers to whom you're subject with a vision of what the language makes practical. http://www.pythonology.com/success The Python Software Foundation (PSF) has replaced the Python Consortium as an independent nexus of activity. It has official responsibility for Python's development and maintenance. http://www.python.org/psf/ Among the ways you can support PSF is with a donation. http://www.python.org/psf/donations/ The Summary of Python Tracker Issues is an automatically generated report summarizing new bugs, closed ones, and patch submissions. http://search.gmane.org/?author=status%40bugs.python.org&group=gmane.comp.p… Although unmaintained since 2002, the Cetus collection of Python hyperlinks retains a few gems. http://www.cetus-links.org/oo_python.html Python FAQTS http://python.faqts.com/ The Cookbook is a collaborative effort to capture useful and interesting recipes. http://code.activestate.com/recipes/langs/python/ Many Python conferences around the world are in preparation. Watch this space for links to them. Among several Python-oriented RSS/RDF feeds available, see: http://www.python.org/channews.rdf For more, see: http://www.syndic8.com/feedlist.php?ShowMatch=python&ShowStatus=all The old Python "To-Do List" now lives principally in a SourceForge reincarnation. http://sourceforge.net/tracker/?atid=355470&group_id=5470&func=browse http://www.python.org/dev/peps/pep-0042/ del.icio.us presents an intriguing approach to reference commentary. It already aggregates quite a bit of Python intelligence. http://del.icio.us/tag/python Enjoy the *Python Magazine*. http://pymag.phparch.com/ *Py: the Journal of the Python Language* http://www.pyzine.com Dr.Dobb's Portal is another source of Python news and articles: http://www.ddj.com/TechSearch/searchResults.jhtml?queryText=python and Python articles regularly appear at IBM DeveloperWorks: http://www.ibm.com/developerworks/search/searchResults.jsp?searchSite=dW&se… Previous - (U)se the (R)esource, (L)uke! - messages are listed here: http://search.gmane.org/?query=python+URL+weekly+news+links&group=gmane.com… http://groups.google.com/groups/search?q=Python-URL!+group%3Acomp.lang.pyth… http://lwn.net/Search/DoSearch?words=python-url&ctype3=yes&cat_25=yes There is *not* an RSS for "Python-URL!"--at least not yet. Arguments for and against are occasionally entertained. Suggestions/corrections for next week's posting are always welcome. E-mail to <Python-URL(a)phaseit.net> should get through. To receive a new issue of this posting in e-mail each Monday morning (approximately), ask <claird(a)phaseit.net> to subscribe. Mention "Python-URL!". Write to the same address to unsubscribe. -- The Python-URL! Team-- Phaseit, Inc. (http://phaseit.net) is pleased to participate in and sponsor the "Python-URL!" project. Watch this space for upcoming news about posting archives.

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[ANN] python-daemon 1.5.1
by Ben Finney Sept. 26, 2009

Sept. 26, 2009

Howdy all, I'm pleased to announce the release of version 1.5.1 of ‘python-daemon’. What is python-daemon ===================== The ‘python-daemon’ library is the reference implementation of PEP 3143 <URL:http://www.python.org/dev/peps/pep-3143/>, “Standard daemon process library”. The source distribution is available via the PyPI page for this version, <URL:http://pypi.python.org/pypi/python-daemon/1.5.1/>. The latest version is always available via the library's PyPI page <URL:http://pypi.python.org/pypi/python-daemon/>. What's new in this version ========================== Since version 1.4.8 the following significant improvements have been made: * Raise specific errors on failures from the library, distinguishing different conditions better. * Write the PID file using correct OS locking and permissions. * Implement ‘PIDLockFile’ as subclass of ‘lockfile.LinkFileLock’. The ‘PIDLockFile’ and ‘TimeoutPIDLockFile’ implementation is in the process of migrating to the more specific ‘lockfile’ library, with the assistance of Skip Montanaro; at some future point it will no longer be part of ‘python-daemon’. -- \ “A computer once beat me at chess, but it was no match for me | `\ at kick boxing.” —Emo Philips | _o__) | Ben Finney

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ANN: agenda2pdf v1.0
by Iñigo Serna Sept. 25, 2009

Sept. 25, 2009

Hi, I'm proud to present you "agenda2pdf". This is a simple script which generates a book agenda file in PDF format, ready to be printed or loaded on an ebook reader. You can choose among different sections. Each section have pdf links to other parts of the agenda. I've created it for using with my iLiad eBook reader. Released under GNU Public License v3 or later. More info, documentation, screenshots, and download link in: https://inigo.katxi.org/devel/agenda2pdf or http://code.google.com/p/agenda2pdf. Of course, all comments, suggestions, etc. are welcome. Best regards, Iñigo Serna

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New books: Learning Python, Python Pocket Reference 4th Eds
by lutz＠rmi.net Sept. 25, 2009

Sept. 25, 2009

I'm happy to announce new, 4th editions of the O'Reilly books Learning Python and Python Pocket Reference. These new editions have been thoroughly updated and expanded to cover both Python 3.1 and 2.6, and fully present features that appear in each Python line. Whether you're using Python 2.X, using Python 3.X, or stuck somewhere in between, you'll find these editions tailored to your current and future needs. In addition to language changes, the new Learning Python has been augmented with a new OOP tutorial chapter, as well as new advanced topic chapters that explore Unicode processing, managed attributes, decorators, and metaclasses. For a more detailed description of the changes in the new Learning Python, please see the early draft Preface excerpt: http://www.rmi.net/~lutz/lp4e-preface-preview.html For more details on both books, see O'Reilly's web pages: http://oreilly.com/catalog/9780596158064/ http://oreilly.com/catalog/9780596158088/ I also maintain pages about these books at: http://www.rmi.net/~lutz The new Learning Python is available today, in both paper and a variety of ebook and online forms; the Pocket Reference is printing and will be available shortly. Cheers, --Mark Lutz

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ANN: Albow 2.1
by Greg Ewing Sept. 25, 2009

Sept. 25, 2009

ALBOW - A Little Bit of Widgetry for PyGame Version 2.1 is now available. http://www.cosc.canterbury.ac.nz/greg.ewing/python/Albow/ Highlights of this version: * OpenGL faciliites * Music facilities * Drop-down menus and menu bars What is Albow? Albow is a library for creating GUIs using PyGame that I have been developing over the course of several PyWeek competitions. I am documenting and releasing it as a separate package so that others may benefit from it, and so that it will be permissible for use in future PyGame entries. The download includes HTML documentation and some example programs demonstrating most of the library's features. You can also see some screenshots and browse the documentation on-line. -- Gregory Ewing greg.ewing(a)canterbury.ac.nz

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New mds-utils release (1.1.0)
by Michele De Stefano Sept. 25, 2009

Sept. 25, 2009

I'm proud to announce a new release of mds-utils (http://code.google.com/p/mds-utils/). New release features: 1) flush support added to FILE* devices. 2) added a new "python" namespace. Contains an object derived from boost::python::object that helps in using python file objects within python extensions written with Boost.Python. What is mds-utils ? ---------------------- It's a C++ library composed by different utilities. Amongst its features it contains classes to treat a FILE* as a C++ stream. It contains also some utilities for developing C++ Python extensions. For more information, go to the library site (http://code.google.com/p/mds-utils/) -- Michele De Stefano http://www.linkedin.com/in/micdestefano http://xoomer.virgilio.it/michele_de_stefano

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PyPy Sprint Announcement, Duesseldorf 6 Nov- 13 Nov
by Carl Friedrich Sept. 24, 2009

Sept. 24, 2009

Düsseldorf PyPy sprint November 6 - November 13 2009 ===================================================== The next PyPy sprint will be held in the Computer Science department of Heinrich-Heine Universität Düsseldorf from the 6th to the 13th of November 2009. This is a fully public sprint, everyone is welcome to join us. Topics and goals ---------------- At the sprint we intend to work on the JIT generator in PyPy and on applying it to PyPy Python interpreter. The precise work that will be done is not fixed, as we don't know in which state the JIT will be in November. However, possible areas of work might include: - tweaking the interpreter/objspace to be more JIT-friendly, e.g. instance implementation code, call code - if there is interest starting non x86-32 JIT backends - trying out existing software to find features where the optimizations of the JIT could be improved - improving our benchmarking infrastructure We will give special priority to topics that "non-core" people find interesting (as long as they are somehow JIT-related). For an introduction of how our JIT-generation process works, please refer to our blog: http://morepypy.blogspot.com/2009/03/jit-bit-of-look-inside.html There is also a more dense academic paper about the subject: http://codespeak.net/svn/pypy/extradoc/talk/icooolps2009/bolz-tracing-jit-f… Location -------- The sprint will take place in a seminar room of the computer science department. It is in the building 25.12 of the university campus. For travel instructions see http://stups.cs.uni-duesseldorf.de/anreise/esbahn.php Registration ------------ If you'd like to come, please subscribe to the `pypy-sprint mailing list`_ and drop a note about your interests and post any questions. More organisational information will be send to that list. We'll keep a list of `people`_ which we'll update (which you can do so yourself if you have codespeak commit rights). .. _`pypy-sprint mailing list`: http://codespeak.net/mailman/listinfo/pypy-sprint .. _`people`: http://codespeak.net/pypy/extradoc/sprintinfo/ddorf2009/people.txt

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python-fedex 1.0 Released
by Greg Taylor Sept. 24, 2009

Sept. 24, 2009

python-fedex 1.0 has been released. This GPLv3 module is a very light wrapper around the excellent suds SOAP module and FedEx's Web Services WSDLs. The purpose of this module is to prepare the WSDL objects for the user to populate and manipulate as needed, as well as handling sending and light processing for common errors. python-fedex leaves the user to read FedEx's documentation to understand all of the fields exposed by python-fedex. Requirements: * Python 2.5+, but not 3.0 * suds (https://fedorahosted.org/suds/) Download: http://code.google.com/p/python-fedex/

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Sneaky web server 0.1
by Massimo Di Pierro Sept. 24, 2009

Sept. 24, 2009

A fast portable pure-python multithreaded experimental WSGI web server in 300 lines of code: Python 2.4,2.5,2.6 version: http://code.google.com/p/web2py/source/browse/trunk/gluon/sneaky.py Python 3.0,3.1 version: http://code.google.com/p/web2py/source/browse/trunk/gluon/ sneaky3.py 1) Some third party benchmarks are in the doc strings but you should run them yourself. These are benchmarks for the servers, not the frameworks. 2) We are not sure it is perfectly WSGI compliant but it is very similar to Cherrypy wsgiserver 3.2. 3) Experimental means we are still ironing down WSGI compliance and we have not tested chunked uploads (only regular uploads). 4) This is distributed with web2py, it works with web2py, but until we have more tests done, web2py still uses cherrypy's wsgi server in production. 5) The license is GPL but we are going change it to MIT of BSD or Apache when done. 6) We are posting here because we hope you will give it a try and report compatibility issues with your favorite framework and browser. This will help us fix problems and turn into a fast production server.

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Jython 2.5.1 Release Candidate 3 is out
by Frank Wierzbicki Sept. 24, 2009

Sept. 24, 2009

On behalf of the Jython development team, I'm pleased to announce that Jython 2.5.1rc3 is available for download here: https://sourceforge.net/projects/jython/files/jython-dev/2.5.1rc3/jython_in… - See http://wiki.python.org/jython/InstallationInstructions for installation instructions. I didn't really want to have an RC3, I was hoping to have a final by now, but a data loss bug was discovered in RC2 and that prompted one more RC. I'm hoping that this is the last one and that we'll have a final shortly. Please see the NEWS file for detailed release notes. Please report any bugs that you find here: http://bugs.jython.org Thanks, -Frank

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[ANNOUNCE] PyGobject 2.20.0 - stable
by Gian Mario Tagliaretti Sept. 23, 2009

Sept. 23, 2009

I am pleased to announce version 2.20.0 of the Python bindings for GObject. The new release is available from ftp.gnome.org as and its mirrors as soon as its synced correctly: http://download.gnome.org/sources/pygobject/2.20/ What's new since PyGObject 2.19.0? - Allow to use automake 1.11 (Paolo Borelli) - Specify programming language in .devhelp file (Frédéric Péters) - Plug reference leak of GSource in pyg_main_loop_init (Paul) - Updated uninstalled.pc file (Brian Cameron) Blurb: GObject is a object system library used by GTK+ and GStreamer. PyGObject provides a convenient wrapper for the GObject library for use in Python programs, and takes care of many of the boring details such as managing memory and type casting. When combined with PyGTK, PyORBit and gnome-python, it can be used to write full featured Gnome applications. Like the GObject library itself PyGObject is licensed under the GNU LGPL, so is suitable for use in both free software and proprietary applications. It is already in use in many applications ranging from small single purpose scripts up to large full featured applications. PyGObject requires glib >= 2.14.0 and Python >= 2.3.5 to build. GIO bindings require glib >= 2.16.0. cheers -- Gian Mario Tagliaretti GNOME Foundation member gianmt(a)gnome.org

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