Mailman 3 September 2009 - Python-announce-list

Try CodeInvestigator version 0.16.0
by hans moleman 23 Sep '09

23 Sep '09

CodeInvestigator version 0.16.0 was released on Sept 23. It requires Python version 2.6 and a Firefox browser. Bug fixes: Indentation of comments and triple quoted strings. Triple quoted strings could embed additional spaces. Additional __str__ calls were made for an instance. Record scripts that don't have a .py extension. ELIF sometimes fails. Docstrings passed over to generated program Issue with importing 64 bit modules Initial syntax check sometimes rejected too much. Thanks Tim! Changes: Remarks. If you click in the right margin you can enter remarks. Remarks can be dragged to another location if you use Firefox 3.5. They are intended to work like poste-it notes attached to a printout of the code. Warning: The database will be initialized and you will lose your runs. CodeInvestigator is a tracing tool for Python programs. Running a program through CodeInvestigator creates a recording. Program flow, function calls, variable values and conditions are all stored for every line the program executes. The recording is then viewed with an interface consisting of the code. The code can be clicked: A clicked variable displays its value, a clicked loop displays its iterations. You read code, and have at your disposal all the run time details of that code. A computerized desk check tool and another way to learn about your program. http://sourceforge.net/project/showfiles.php?group_id=183942

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TestFixtures 1.6.2 released!
by Chris Withers 23 Sep '09

23 Sep '09

Hi All, I'm pleased to announce a new release of TestFixtures. This package is a collection of helpers and mock objects that are useful when writing unit tests or doc tests. This release fixes problems when using Comparison objects with instances of Django models, so tests like the following will now work as expected: from testfixtures import Comparison as C,compare class TestUser(TestCase): def test_create(self): u = User(name='Test') u.save() t = User.objects.get(name='Test') compare([C(User,name='Test',strict=False)], list(User.objects.all())) To find out more, please read here: http://pypi.python.org/pypi/testfixtures cheers, Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk

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[ANN]: IronPython 2.6 Release Candidate 1
by Dave Fugate 22 Sep '09

22 Sep '09

Hello Python Community, We're pleased to announce the release of IronPython 2.6 Release Candidate 1 which can be freely downloaded at http://ironpython.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=30315. Over the development span of IronPython 2.6, exactly 417 bugs have been fixed. Since the release of Beta 2, we've addressed the following: * Non-hosting related APIs previously found in Microsoft.Scripting.dll have been migrated to Microsoft.Dynamic.dll. The rationale behind this decision is that we're aiming for compatible DLR binaries with the next major release of IronRuby, namely 1.0. Microsoft.Dynamic.dll will likely end up being a bit different between IronPython 2.6 and IronRuby 1.0, but we intend on keeping Microsoft.Scripting.dll and Microsoft.Scripting.Core.dll exactly the same. By doing this you'll be able to utilize the DLR hosting APIs to run both IronPython 2.6 and IronRuby 1.0 code from the same .NET application! * Documentation distributed with the release has been updated * A plethora of bugs have been fixed over the past two months with special emphasis given to CodePlex work items with lots of votes If no major issues with this release candidate are discovered, we hope to ship the final 2.6 release in a little under a month. Anyone planning on upgrading to 2.6 should try out this release candidate and let us know of any issues you find ASAP. Thanks to everyone in the IronPython Community who reported bugs and provided valuable feedback: Zachc, yamakox, vernondcole, VAks, tscottw, tonyandrewmeyer, tomwright, TomasMatousek, tkamiya, timers, srivatsn, sopeajw, saveenr, sanxiyn, rridge, ronniemaor, quirogaco, pythonfoo, py_sunil, pm100, pl6306, paulfelix, orestis, olegt, oldman, NDHUMuscle, mycall, mmaly, mmacdonaldssfcu, maplpro, luntain, llaske, lbaker, Lawouach, laurionb, laughingboy, kurhan, kuno, kowenswp, klrohe, kevgu, jmesserly, jlunder, jdhardy, jbevain, jackeyoo, hhonisch, gz, gjones, fwereade, deadalusai, daveremy, darb, CurtHagenlocher, chaghi, cgravill, cartman, bobarnso, billchi, atifaziz, ashcor, alvanet, __Helmut__, fuzzyman, fabiofz, Eloff, egonw_, dungen, dsblank, dmajnemer, dinov, and dfugate. We really do appreciate your input which helps to make every release of IronPython better than the last. The IronPython Team

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[ANN] TurboGears 1.1rc1 released
by Christopher Arndt 21 Sep '09

21 Sep '09

On behalf of the TurboGears Team, I am pleased to announce that TurboGears 1.1rc1 is available for download at http://turbogears.org/ and the Python package index http://pypi.python.org/pypi/TurboGears TurboGears 1.1rc1 is the first release candidate for the upcoming 1.1 release, which is the evolution of the TurboGears 1 codebase. The 1.1 branch now uses SQLAlchemy as the default database layer and Genshi as the standard templating engine but is 100 percent compatible with applications built on TurboGears 1.0. We encourage you to test this release with your existing TurboGears 1.0 applications and by building new ones. If no major problems are reported, this release will become 1.1final in about two weeks. Beta versions of TurboGears 1.1 have been in use in production environments for over a year now, so we believe this release is rock-stable. What is TurboGears? ------------------- TurboGears is a rapid development, "front-to-back", open source web meta-framework. Its aim is to simplify and speed up the development of modern web applications written in the Python programming language. TurboGears is designed around the model-view-controller architecture, much like Struts or Ruby on Rails, and takes the best Python web components available (hence "meta-framework") and combines them into one easy-to-install, documented whole. What's new? ----------- Apart from the change of defaults to SLQAlchemy and Genshi, TurboGears 1.1 has a new testing framework built on WebTest, a new quickstart design (backported from TurboGears 2) and many, many bigger and smaller fixes and improvements over version 1.0 in its internals. For a comprehensive list of changes see the changelog in our Trac at http://trac.turbogears.org/wiki/ChangeLog How to install? --------------- The easiest way to install TurboGears 1.1rc1 is via setuptools: [sudo] easy_install [-f http://turbogears.org/download/] TurboGears we recommend that you install TurboGears into its own virtual environment using the virtualenv tool: [sudo] easy_install virtualenv virtualenv --no-site-packages /path/to/tgenv source /path/to/tgenv/bin/activate easy_install [-f http://turbogears.org/download/] TurboGears How is it related to TurboGears 2? ---------------------------------- TurboGears 1.1 is based on the original TurboGears 1.0 codebase and still uses CherryPy 2.3 as the underlying web application server. It is 100 percent compatible with existing TurboGears 1.0 applications and porting an application using SQLObject and Kid to use SQLAlchemy and Genshi is easiliy achieved. TurboGears 2 has almost the same API as TurboGears 1.x but builds on Pylons as the underlying web engine. Most new development for TurboGears now happens in version 2, but the 1.1 branch will be continued to be supported and maybe even developed further for the foreseeable future. The Future ---------- TurboGears 1.1 final is slated to be released in about two weeks. Afterwards we plan to issue a maintenance release for the TurboGears 1.0 branch, which would be version 1.0.9. Further development on the TurboGears 1.1 branch depends on community feedback, which we plan to collect by conducting an online survey amongst TurboGears users. You may expect a separate announcement for this very soon! Share & enjoy! -- Christopher Arndt <sysadmin(a)turbogears.org> TurboGears Systems Administrator http://www.turbogears.org/

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SQLObject 0.11.1
by Oleg Broytmann 20 Sep '09

20 Sep '09

Hello! I'm pleased to announce version 0.11.1, 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/0.11.1 News and changes: http://sqlobject.org/News.html What's New ========== News since 0.11.0 ----------------- * Fixed a bug: Sybase tables with identity column fire two identity_inserts. * Fixed a bug: q.startswith(), q.contains() and q.endswith() escape (with a backslash) all special characters (backslashes, underscores and percent signs). 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 0.10.7
by Oleg Broytmann 20 Sep '09

20 Sep '09

Hello! I'm pleased to announce version 0.10.7, 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/0.10.7 News and changes: http://sqlobject.org/News.html What's New ========== News since 0.10.6 ----------------- * Fixed a bug: Sybase tables with identity column fire two identity_inserts. * Fixed a bug: q.startswith(), q.contains() and q.endswith() escape (with a backslash) all special characters (backslashes, underscores and percent signs). 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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Pythons in Florida (training next month)
by Python Training 20 Sep '09

20 Sep '09

Don't miss your chance to attend our first Florida Python training session next month. This 3-day class is being held October 20-22, in Sarasota, Florida. It is open to both individual and group enrollments. For more details on the class, as well as registration instructions, please visit the class web page: http://home.earthlink.net/~python-training/2009-public-classes.htm If you are unable to attend in October, our next Sarasota class is already scheduled for January 19-21. Thanks, and we hope to see you in sunny Florida soon. --Mark Lutz at Python Training Services ---- *Prerequisite reading: http://edition.cnn.com/2009/US/03/30/python.patrol/index.html

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ANN: Hypy 0.8.4
by Cory Dodt 20 Sep '09

20 Sep '09

Hypy is a fulltext search interface for Python applications. Use it to index and search your documents from Python code. Hypy is based on the estraiernative bindings by Yusuke Yoshida. * Fast, scalable * Perfect recall ratio by N-gram method * High precision by hybrid mechanism of N-gram and morphological analyzer * Phrase search, regular expressions, attribute search (including numeric and date comparisons), and similarity search * Simple and powerful API Homepage, downloads, everything, etc.: http://goonmill.org/hypy/ This is of course on pypi and can be installed with easy_install. You will need Hyper Estraier installed to use it. Release Version 0.8.4 (2009.09.19) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Bugfix release. * It is now possible to construct an attribute-only search with None for search phrase. All known bugs are now fixed. -- _____________________

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The Python Tutorial, in Spanish
by Facundo Batista 19 Sep '09

19 Sep '09

Hi all! We finally translated to Spanish the very last version of the Python Tutorial! You can grab it here in PDF [0], or see it online here [1]. Furthermore, we printed it [2]! It was a giveaway in PyCon Argentina 2009, :D Regards, [0] http://python.org.ar/pyar/Tutorial [1] http://docs.python.org.ar/tutorial/contenido.html [2] http://www.taniquetil.com.ar/facundo/imgs/tutorialimpreso.jpg -- . Facundo Blog: http://www.taniquetil.com.ar/plog/ PyAr: http://www.python.org/ar/

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RunPON 0.5
by Davide Alberani 19 Sep '09

19 Sep '09

RunPON 0.5 can be downloaded from here: http://erlug.linux.it/~da/soft/runpon/ http://bitbucket.org/alberanid/runpon/ (mercurial repository) In this version: every menu contains a list of available configuration sets; the applet takes care of the panel orientation and there are other improvements useful to debug the program itself. RunPON is a small Python program useful to run the pon/poff scripts. It shows the elapsed connection time and periodically checks if a given network interface is still active. It can run as a stand-alone application (with a status icon in the tray) or as a Gnome panel applet (and compatible panels). Obviously, modifying its configuration, it can run any program you like. It's still under heavy development. If you want to help, please contact me at: da (AT) erlug.linux.it -- Davide Alberani <alberanid(a)libero.it> [GPG KeyID: 0x465BFD47] http://erlug.linux.it/~da/

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PyCon 2010 (Atlanta) Call For Tutorials
by Greg Lindstrom 17 Sep '09

17 Sep '09

The period to submit proposals for PyCon 2010 in Atlanta is open until October 18th. Tutorial are held the two days prior to the main conference and feature 3-hour classes led by fellow Python developers and enthusiasts *just like you*. Any topic relating to Python is allowed and the organizers encourage anyone who wants to share their knowledge to submit their ideas for consideration. Perennial classes include "Introduction to Python" for various audiences (beginners, programmers, those new to Django and web frameworks, etc.), intermediate Python (standard library, module/packages, objects, etc.) and more specialized topics (SciPy/Matlab, unit and web testing, optimization) as well as general topics such as "Best Practices" for web programming, objects, libraries. There is even interest in a class to show how to organize, design, write and distribute an Open Source project. Any topic relating to Python is eligible. Tutorial teachers are paid $1,000.00 per class for their efforts. Interested (we hope so!)? More information is available at http://us.pycon.org/2010/tutorials/proposals/ or write us at pycon-tutorials(a)python.org. We look forward to hearing from YOU. Greg Lindstrom Tutorial Coordinator, PyCon 2010 (Atlanta)

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Python-URL! - weekly Python news and links (Sep 17)
by Gabriel Genellina 17 Sep '09

17 Sep '09

QOTW: "Python the language doesn't try to satisfy all tastes in language design equally." - Guido van Rossum Is it really necesary to explicitely close open files? http://groups.google.com/group/comp.lang.python/t/d794d426a5bef2c1/ Tips for using Unicode text (specially with non-Latin alphabets): http://groups.google.com/group/comp.lang.python/t/89d3ca6ccc8fb876/ How are class attributes exactly inherited, and how they relate to instance attributes: http://groups.google.com/group/comp.lang.python/t/1e146e21b24548f7/ Automatic attribute assignment during class inheritance: http://groups.google.com/group/comp.lang.python/t/f5aeb582a5ab9463/ Composition: delegating all method calls to the contained object may be tedious to write -- alternatives? http://groups.google.com/group/comp.lang.python/t/199ca4f8ac2208/ Calling all bases implementation of overriden methods in cases of multiple inheritance: http://groups.google.com/group/comp.lang.python/t/92895f3c26e61f0d/ Sometimes, a scope for local variables smaller than a function is desired: http://groups.google.com/group/comp.lang.python/t/96ed59e58035b8ef/ More ways to define an empty function that you ever imagined: http://groups.google.com/group/comp.lang.python/t/c9f494b6745c7d74/ There is real advantage in putting the main program body inside a function: http://groups.google.com/group/comp.lang.python/t/e72fd6f765f97117/ Using several Python interpreters in a multithreaded C++ program: http://groups.google.com/group/comp.lang.python/t/f3fc7455efd33b6c/ Best way to store global application parameters: http://groups.google.com/group/comp.lang.python/t/9954a9e505c071e7/ A portable way to open a document using its associated application: http://groups.google.com/group/comp.lang.python/t/445ffc93b0e6a460/ Getting your first job as a Python programmer: http://groups.google.com/group/comp.lang.python/t/c9f494b6745c7d74/ Idea: a namespace object (nested attribute container): http://groups.google.com/group/comp.lang.python/t/dc58821b6681675a/ Idea: multithreading might be easier if most objects were immutable: http://groups.google.com/group/comp.lang.python/t/29c62cbee7a6b598/ ======================================================================== 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 1.4.8
by Ben Finney 17 Sep '09

17 Sep '09

Howdy all, I'm pleased to announce the release of version 1.4.8 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/1.4.8/>. 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 ========================== This is a bug-fix version, addressing the problems with a daemon starting child processes. The library no longer defaults to fiddling with the ‘SIGCLD’ signal, and instead leaves that to the customisation by the library user as appropriate. An update to PEP 3143 to document this change in the API is in progress. Thanks to those who raised this issue and helped troubleshoot it (see <URL:http://thread.gmane.org/gmane.comp.python.general/629633>) and to Joel Martin for finally pinning down where the problem was. -- \ “An expert is a man who has made all the mistakes which can be | `\ made in a very narrow field.” —Niels Bohr | _o__) | Ben Finney

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[ANN] Game Microwar 2.0 beta 2
by pdorange＠pas-de-pub-merci.mac.com 17 Sep '09

17 Sep '09

MicroWar 2.0 beta 2 ----------------------- MicroWar is "Space Invaders" style arcade game, in the cruel world of micro-compter industry. You're a Macintosh faced to invading Wintel hordes year after year, kill more PC. Bonuses let you improve your Mac performances or restore life... PC Hunt is now open ! Usages and Licence The game is powered by Python language with SDL and PyGame module. Distributed under BSD Licence : http://opensource.org/licenses/bsd-license.php Compatibility The bundled application is only available for Mac now. The source code, is therefore cross-platform and can run on Macintosh, Windows and Linux : see source documentation for details I was looking for someone to help me released a package for WIndows, i can't make py2exe working... Download the game : <http://microwar.sourceforge.net/> Bug report : <http://sourceforge.net/projects/microwar/support> FAQ : <http://microwar.sourceforge.net/faq.html> All logos used are tradmarks from the corresponding compagny. Use is illustrative. -- Pierre-Alain Dorange <http://microwar.sourceforge.net/> Ce message est sous licence Creative Commons "by-nc-sa-2.0" <http://creativecommons.org/licenses/by-nc-sa/2.0/fr/>

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[ANN] BleachBit 0.6.4
by Andrew Ziem 16 Sep '09

16 Sep '09

BleachBit deletes junk files to free up disk space and keep your privacy. Highlights of changes in 0.6.4: * Add command line interface for use in scripts * Clean Opera 10.0 final * Add Malay translation * Update 17 other translations * Better support non-Linux POSIX systems such as NetBSD * Shrink the Windows installer by "compressing" GTK+ localizations and offering an English-only download * Quickly stop zeroing free disk space when you close the application window ("X it out") Full release notes http://bleachbit.sourceforge.net/news/bleachbit-064-released Home page http://bleachbit.sourceforge.net/

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ANN: StarCluster 0.90beta Released - HPC Clusters on Amazon's EC2
by Justin Riley 16 Sep '09

16 Sep '09

I'd like to announce the first beta release of StarCluster, a utility for creating and managing general purpose computing clusters hosted on Amazon's Elastic Compute Cloud (EC2). >From the PyPI Page: StarCluster minimizes the administrative overhead associated with obtaining, configuring, and managing a traditional computing cluster used in research labs or for general distributed computing applications. StarCluster is built on top of EC2 which enables dynamically creating and destroying clusters of virtual machines and only paying for the time used. The amount per hour varies depending on the instance type and the number of virtual machines. StarCluster consists of a library and set of scripts that use the library. For end-users, the scripts are the main user interface and provide simple intuitive options for getting started with distributed computing on EC2 (i.e. starting/stopping clusters, managing software configurations, etc). For developers, the library wraps the EC2 API to provide a simplified interface for launching/terminating nodes, executing commands on the nodes, copying files to/from the nodes, etc. To get started, the user creates a simple configuration file with their account details and a few preferences (i.e. number of machines, instance type, EBS volumes to be mounted, etc). After creating the configuration file and starting the software, a cluster of Linux machines configured with a queuing system (Sun Grid Engine), a nfs shared /home directory, and OpenMPI is created and ready to go out of the box. StarCluster has been targeted for computational research labs and to support classrooms with computational requirements. For research labs, StarCluster is a way for graduate students and faculty to have an on-demand cluster. This means students can access their research with the same hardware and software configurations wherever they go; even if they move to another institution. StarCluster also provides a way for students to experiment with a computational model on a cheap budget before running on local dedicated resources. In the classroom, StarCluster provides a cost effective, reliable way of managing the software configurations for a particular course. It also removes the majority of system administration concerns since the initial setup procedures have been captured in StarCluster and in the user's software configurations (i.e. AMI images, EBS volumes, etc). This means that each semester the exact computing cluster configuration can be recalled with more or less nodes. With this model there is also the benefit that if hardware problems occur it's easy to request a new set of machines in the cloud. Homepage: http://web.mit.edu/starcluster PyPI: http://pypi.python.org/pypi/StarCluster Code: http://github.com/jtriley/StarCluster/tree/master Freshmeat: http://freshmeat.net/projects/starcluster ComputerWorld (AU) Article: http://www.computerworld.com.au/article/316891/open_source_starcluster_shin…

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ANN: StarCluster 0.90beta Released - HPC Clusters on Amazon's EC2
by Justin Riley 16 Sep '09

16 Sep '09

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I'd like to announce the first beta release of StarCluster, a utility for creating and managing general purpose computing clusters hosted on Amazon's Elastic Compute Cloud (EC2). - From the PyPI Page: StarCluster minimizes the administrative overhead associated with obtaining, configuring, and managing a traditional computing cluster used in research labs or for general distributed computing applications. StarCluster is built on top of EC2 which enables dynamically creating and destroying clusters of virtual machines and only paying for the time used. The amount per hour varies depending on the instance type and the number of virtual machines. StarCluster consists of a library and set of scripts that use the library. For end-users, the scripts are the main user interface and provide simple intuitive options for getting started with distributed computing on EC2 (i.e. starting/stopping clusters, managing software configurations, etc). For developers, the library wraps the EC2 API to provide a simplified interface for launching/terminating nodes, executing commands on the nodes, copying files to/from the nodes, etc. To get started, the user creates a simple configuration file with their account details and a few preferences (i.e. number of machines, instance type, EBS volumes to be mounted, etc). After creating the configuration file and starting the software, a cluster of Linux machines configured with a queuing system (Sun Grid Engine), a nfs shared /home directory, and OpenMPI is created and ready to go out of the box. StarCluster has been targeted for computational research labs and to support classrooms with computational requirements. For research labs, StarCluster is a way for graduate students and faculty to have an on-demand cluster. This means students can access their research with the same hardware and software configurations wherever they go; even if they move to another institution. StarCluster also provides a way for students to experiment with a computational model on a cheap budget before running on local dedicated resources. In the classroom, StarCluster provides a cost effective, reliable way of managing the software configurations for a particular course. It also removes the majority of system administration concerns since the initial setup procedures have been captured in StarCluster and in the user's software configurations (i.e. AMI images, EBS volumes, etc). This means that each semester the exact computing cluster configuration can be recalled with more or less nodes. With this model there is also the benefit that if hardware problems occur it's easy to request a new set of machines in the cloud. Homepage: http://web.mit.edu/starcluster PyPI: http://pypi.python.org/pypi/StarCluster Code: http://github.com/jtriley/StarCluster/tree/master Freshmeat: http://freshmeat.net/projects/starcluster ComputerWorld (AU) Article: http://www.computerworld.com.au/article/316891/open_source_starcluster_shin… -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.0.11 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkqxPY8ACgkQ4llAkMfDcrlXowCfS7xgpItT3mlceVZaPhVDatg3 FGkAoIAsWpHtpTkEszEOyGCOjxKKwjMw =0dCx -----END PGP SIGNATURE-----

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Upcoming Python/Django Classes
by Steve Holden 15 Sep '09

15 Sep '09

Holden Web is please to announce a public "Introduction to Python" class, near Washington DC, on October 13-15, presented by Steve Holden. This is followed, on Friday October 16, by a one-day "Django Master Class" presented by Jacob Kaplan-Moss. Further details are available from http://holdenweb.com/py/training/ regards Steve -- Steve Holden +1 571 484 6266 +1 800 494 3119 Holden Web LLC http://www.holdenweb.com/ Watch PyCon on video now! http://pycon.blip.tv/

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ANN: OpenOpt 0.25 - free Python-written numerical optimization framework with automatic differentiation
by dmitrey 15 Sep '09

15 Sep '09

OpenOpt is cross-platform (Windows, Linux, Mac OS etc) Python-written framework. If you have a model written in FuncDesigner (http:// openopt.org/FuncDesigner), you can get 1st derivatives via automatic differentiation (http://en.wikipedia.org/wiki/ Automatic_differentiation) (some examples here: http://openopt.org/NumericalOptimizationForFuncDesignerModels). License BSD allows to use it in both open- and closed-code soft. For more details see http://openopt.org/ http://forum.openopt.org/viewtopic.php?id=141 Regards, D.

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ANN: FuncDesigner 0.15 - free Python-written framework with automatic differentiation
by dmitrey 15 Sep '09

15 Sep '09

FuncDesigner is cross-platform (Windows, Linux, Mac OS etc) Python- written framework with automatic differentiation (http:// en.wikipedia.org/wiki/Automatic_differentiation). License BSD allows to use it in both open- and closed-code soft. It has been extracted from OpenOpt framework as a stand-alone package, still you can easily optimize models written in FuncDesigner by OpenOpt (some examples here: http://openopt.org/NumericalOptimizationForFuncDesignerModels) For more details see http://openopt.org/FuncDesigner http://forum.openopt.org/viewtopic.php?id=141 Regards, D.

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Moovida Media Center 1.0.7 Release
by Guillaume Emont 15 Sep '09

15 Sep '09

Dear Python users, The Moovida team is happy to announce the release of Moovida Media Center 1.0.7, code-named "Jeepers Creepers". Moovida, formerly known as Elisa, is a cross-platform and open-source Media Center written in Python. It uses GStreamer [1] for media playback and pigment [2] to create an appealing and intuitive user interface. This new release adds experimental support for DVD playback (including from DVD images). It also includes many bug fixes; most notably: Moovida now obtains album covers again (now using Last.fm) and the start-up looks nicer than ever. This release is a lightweight release, meaning it is pushed through our automatic plugin update system. Additionally a windows installer is available for download on our website. As usual, for users already running Moovida, the upgrade to 1.0.7 should be done automatically via the plugin repository. A complete list of the issues fixed can be found at: http://launchpad.net/elisa/+milestone/1.0.7 This is also summarised in the (attached) release notes. Installers and sources can be downloaded from http://www.moovida.com/download/ Bug reports and feature requests are welcome at http://bugs.launchpad.net/elisa/+filebug Have a media-centered day, Guillaume, for the Moovida team [1] http://www.gstreamer.net/ [2] https://code.fluendo.com/pigment/trac

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[ANN] argparse 1.0.1 - Command-line parsing library
by Steven Bethard 15 Sep '09

15 Sep '09

========================= Announcing argparse 1.0.1 ========================= The argparse module provides an easy, declarative interface for creating command line tools, which knows how to: * parse the arguments and flags from sys.argv * convert arg strings into objects for your program * format and print informative help messages * and much more... The argparse module improves on the standard library optparse module in a number of ways including: * handling positional arguments * supporting sub-commands * allowing alternative option prefixes like + and / * handling zero-or-more and one-or-more style arguments * producing more informative usage messages * providing a much simpler interface for custom types and actions Download argparse ================= The argparse homepage has links for source, MSI and single file distributions of argparse: http://code.google.com/p/argparse/ About this release ================== This is a bugfix release. Various small bugs were squashed, most notably the silencing of the Python 2.6 buggy Exception.message warnings. See the news file for detailed information: http://argparse.googlecode.com/svn/tags/r101/NEWS.txt

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Wing IDE 3.2.1 released
by Wingware 14 Sep '09

14 Sep '09

Hi, Wingware has released version 3.2.1 of Wing IDE, our integrated development environment for the Python programming language. This bug fix release includes the following: * Improved support for Snow Leopard (OS X 10.6) * Support for x86_64 Python 2.4+ on OS X * Support for Stackless Python 3.0 and 3.1 * Fixed Stackless Python support on 64-bit Linux * Several other bug fixes; See the change log for details: http://wingware.com/pub/wingide/3.2.1/CHANGELOG.txt *Wing 3.2 Highlights* Version 3.2 of Wing IDE includes the following new features not present in Wing IDE 3.1: * Support for Python 3.0 and 3.1 * Rewritten version control integration with support for Subversion, CVS, Bazaar, git, Mercurial, and Perforce (*) * Added 64-bit Debian, RPM, and tar file installers for Linux * File management in Project view (**) * Auto-completion in the editor obtains completion data from live runtime when the debugger is active (**) * Perspectives: Create and save named GUI layouts and optionally automatically transition when debugging is started (*) * Improved support for Cython and Pyrex (*.pyx files) * Added key binding documentation to the manual * Added Restart Debugging item in Debug menu and tool bar (**) (*)'d items are available in Wing IDE Professional only. (**)'d items are available in Wing IDE Personal and Professional only. The release also contains many other minor features and bug fixes; see the change log for details: http://wingware.com/pub/wingide/3.2.1/CHANGELOG.txt *Downloads* Wing IDE Professional and Wing IDE Personal are commercial software and require a license to run. A free trial license can be obtained directly from the product when launched. Wing IDE 101 can be used free of charge. Wing IDE Pro 3.2.1 http://wingware.com/downloads/wingide/3.2 Wing IDE Personal 3.2.1 http://wingware.com/downloads/wingide-personal/3.2 Wing IDE 101 3.2.1 http://wingware.com/downloads/wingide-101/3.2 *About Wing IDE* Wing IDE is an integrated development environment for the Python programming language. It provides powerful debugging, editing, code intelligence, testing, version control, and search capabilities that reduce development and debugging time, cut down on coding errors, and make it easier to understand and navigate Python code. Wing IDE is available in three product levels: Wing IDE Professional is the full-featured Python IDE, Wing IDE Personal offers a reduced feature set at a low price, and Wing IDE 101 is a free simplified version designed for teaching entry level programming courses with Python. System requirements are Windows 2000 or later, OS X 10.3.9 or later for PPC or Intel (requires X11 Server), or a recent Linux system (either 32 or 64 bit). Wing IDE 3.2 supports Python versions 2.0.x through 3.1.x. *Purchasing and Upgrading* Wing 3.2 is a free upgrade for all Wing IDE 3.0 and 3.1 users. Any 2.x license sold after May 2nd 2006 is free to upgrade; others cost 1/2 the normal price to upgrade. Upgrade a 2.x license: https://wingware.com/store/upgrade Purchase a 3.x license: https://wingware.com/store/purchase -- The Wingware Team Wingware | Python IDE Advancing Software Development www.wingware.com

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[ANN] Intro+Intermediate Python course, San Francisco, Nov 2009
by wesley chun 14 Sep '09

14 Sep '09

(COMPREHENSIVE) INTRO+INTERMEDIATE PYTHON Mon-Wed, 2009 Nov 9-11, 9AM - 5PM If you have been in the Python community for some time, you may be familiar with my introductory (and advanced) courses. Many new Python intro courses have been added over the past few years, so aren't all classes the same? Most introductory courses focus on teaching you the syntax and giving you an idea of a language's flow control and data types. However, this can only get your so far. Although our course may appear to be for those new to Python, it is also perfect for those who have tinkered with it and want to "fill in the gaps" or desire more in-depth formal training. It combines the best of both an introduction to the language as well as covering intermediate language fundamentals that can make you more effective, even as a beginner. We will immerse you in the world of Python in only a few days, showing you more than just its syntax (which you don't really need a book to learn, right?). Knowing more about how Python works under the covers, including the relationship between data objects and memory management, will make you a much more effective Python programmer coming out of the gate. Daily hands-on labs will help hammer the concepts home. Come join me, Wesley Chun, author of Prentice-Hall's bestseller "Core Python Programming," for a comprehensive course coming up this Fall in beautiful Northern California to get up-to-speed with Python as quickly and as in-depth as possible! WHERE: near the San Francisco Airport (SFO/San Bruno), CA, USA INFO: http://cyberwebconsulting.com (click "Python Training") FLYER: http://starship.python.net/crew/wesc/flyerPP1nov09.pdf LOCALS: easy freeway (101/280/380) with lots of parking plus public transit (BART and CalTrain) access via the San Bruno stations, easily accessible from all parts of the Bay Area VISITORS: free shuttle to/from the airport, free high-speed internet, free breakfast and regular evening receptions; fully-equipped suites FREE PREVIEW: at the website below, you will find (and can download) a video clip of a live lesson that was delivered recently to get an idea of the lecture style and interactive classroom environment. FREE PREVIEW 2: Partnering with O'Reilly and Pearson, I delivered a one-hour introductory webcast at Safari Books Online earlier this year called <B><I>What is Python?</I></B>. You will get both my lecture style as well as an overview of the material covered in the course. http://www.safaribooksonline.com/events/WhatIsPython.html (event announcement) http://www.safaribooksonline.com/Corporate/DownloadAndResources/webcastInfo… (free download with registration) See website for costs, venue info, and registration; various discounts available. Hope to see you there! - wesley - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - "Core Python Programming", Prentice Hall, (c)2007, 2001 "Python Fundamentals" DVD, Prentice Hall, (c)2009 http://corepython.com wesley.j.chun :: wescpy-at-gmail.com python training and technical consulting cyberweb.consulting : silicon valley, ca http://cyberwebconsulting.com

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ANN: pyftpdlib 0.5.2 released
by Giampaolo Rodola' 13 Sep '09

13 Sep '09

Hi, I'm pleased to announce release 0.5.2 of Python FTP Server library (pyftpdlib). http://code.google.com/p/pyftpdlib === About === Python FTP server library provides a high-level portable interface to easily write asynchronous FTP servers with Python. pyftpdlib is currently the most complete RFC-959 FTP server implementation available for Python programming language. It is used in projects like Google Chromium and Bazaar and included in Linux Fedora and FreeBSD package repositories. === Changes === This new version is mainly a bugfix release, including some important security-related patches. Aside from fixing those bugs, it includes the following enhancements: * A new ThrottledDTPHandler class is available. With this you can limit the speed for downloads and uploads affecting the data channel. Take a look at the throttled_ftpd.py script which shows an example usage: http://code.google.com/p/pyftpdlib/source/browse/trunk/demo/throttled_ftpd.… * A new unix_daemon.py script has been included in the demo directory (contributed by Michele Petrazzo). A complete list of changes including enhancements and bug fixes is available here: http://code.google.com/p/pyftpdlib/wiki/ReleaseNotes05 === More links === * Source tarball: http://pyftpdlib.googlecode.com/files/pyftpdlib-0.5.2.tar.gz * Online docs: http://code.google.com/p/pyftpdlib/wiki/Tutorial * FAQs: http://code.google.com/p/pyftpdlib/wiki/FAQ * RFCs compliance paper: http://code.google.com/p/pyftpdlib/wiki/RFCsCompliance * Issue tracker: http://code.google.com/p/pyftpdlib/issues/list * Mailing list: http://groups.google.com/group/pyftpdlib Thanks, --- Giampaolo Rodola' < g.rodola [at] gmail [dot] com > http://code.google.com/p/pyftpdlib/

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