Python-announce-list March 2009

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91 discussions

lockile 0.8
by skip＠pobox.com 31 Mar '09

31 Mar '09

Lockfile 0.8 has been released. It fixes a bug in 0.7 and works around an apparent bug in the threading module. Get it here: http://pypi.python.org/pypi/lockfile What is lockfile? ================= The lockfile module provides a platform-independent advisory locking API for Python. -- Skip Montanaro - skip(a)pobox.com - http://www.smontanaro.net/

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Davy's Ironpython Editor
by daftspaniel＠gmail.com 31 Mar '09

31 Mar '09

DIE (Davy's Ironpython Editor) is a clutter free IronPython code editor with some basic IDE features. The project intentions is to create a editor along the lines of SPE or DrPython for the IronPython world. DIE is easy to deploy (zero install) and will run from a USB key etc. This project is targeted at IronPython 2.0 and is developed on the Windows Platform. Currently it uses the SyntaxBox component (LGPL) for the text editing component. Source code is available via SVN. If you want to take a look there are a couple of screen shots - please visit: http://code.google.com/p/davysironpythoneditor/

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[ANN] Data Plotting Library DISLIN 9.5
by Helmut Michels 31 Mar '09

31 Mar '09

Dear Python users, I am pleased to announce version 9.5 of the data plotting software DISLIN. DISLIN is a high-level and easy to use plotting library for displaying data as curves, bar graphs, pie charts, 3D-colour plots, surfaces, contours and maps. Several output formats are supported such as X11, VGA, PostScript, PDF, CGM, WMF, HPGL, TIFF, GIF, PNG, BMP and SVG. The software is available for the most C, Fortran 77 and Fortran 90/95 compilers. Plotting extensions for the interpreting languages Perl, Python and Java are also supported. DISLIN distributions and manuals in PDF, PostScript and HTML format are available from the DISLIN home page http://www.dislin.de and via FTP from the server ftp://ftp.gwdg.de/pub/grafik/dislin All DISLIN distributions are free for non-commercial use. Licenses for commercial use are available from the site http://www.dislin.de. ------------------- Helmut Michels Max Planck Institute for Solar System Research Phone: +49 5556 979-334 Max-Planck-Str. 2 Fax : +49 5556 979-240 D-37191 Katlenburg-Lindau Mail : michels(a)mps.mpg.de

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Elisa Media Center 0.5.34 Release
by Olivier Tilloy 30 Mar '09

30 Mar '09

Dear Python users, The Elisa team is happy to announce the release of Elisa Media Center 0.5.34, code-named "Always With Me, Always With You". 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 release is a lightweight release, meaning it is pushed through our automatic plugin update system. As usual, for users running a version of Elisa >= 0.5.27, the upgrade to 0.5.34 should be done automatically via the plugin repository. As usual, tarballs are provided for distribution packagers. This release fixes a bunch of bugs and introduces cool new features (under the hood) in the widgets system and the styling engine. A complete list of the issues fixed can be found at: http://bugs.launchpad.net/elisa/+milestone/0.5.34 This is also summarised in the (attached) release notes. Installers and sources can be downloaded from http://elisa.fluendo.com/download/ Bug reports and feature requests are welcome at http://bugs.launchpad.net/elisa/+filebug Have a media-centered evening, Olivier, for the Elisa team [1] http://www.gstreamer.net/ [2] https://code.fluendo.com/pigment/trac Elisa 0.5.34 "Always With Me, Always With You" ============================================== This is Elisa 0.5.34, thirty-fourth release of the 0.5 branch. New features since 0.5.33: - CSS themes support named instances of widgets and widgets in a specific state - CSS themes support unlimitedly deeply nested attributes Bugs fixed since 0.5.33: - 348048: feed lists are not reset in the RSS plugin - 347859: TV Show posters not retrieved correctly from thetvdb - 349429: remove anything between [ and ] in video filename before doing internet lookup Download You can find source releases of Elisa on the download page: http://elisa.fluendo.com/download Elisa Homepage More details can be found on the project's website: http://elisa.fluendo.com Support and Bugs We use Launchpad for bug reports and feature requests: https://bugs.launchpad.net/elisa/+filebug Developers All code is in a Bazaar branch and can be checked out from there. It is hosted on Launchpad: https://code.launchpad.net/elisa Contributors to this release: - Anna Wojdel - David McLeod - Florian Boucault - Guillaume Emont - Jesús Corrius - Krzysztof Adamski - Lionel Martin - Marc Garcia - Maxwell Young - Olivier Tilloy - Philippe Normand

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ANN: Peggy 0.02
by Florian Diesch 29 Mar '09

29 Mar '09

I'm pleased to announce Peggy 0.02 Get it at http://www.florian-diesch.de/software/peggy/ What is Peggy? =================== Peggy helps you to create GTK applications that run out-of-the-egg. It offers functions to load ressources (like .glade files, images, locales) from a (zipped or unzipped) egg. Peggy is a thin layer on top of setuptools and PyGtk. It's not doing much fancy stuff but can save you from reading some docs ;-) Florian -- <http://www.florian-diesch.de/>

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ANN: Portable Python 1.1 released
by Perica Zivkovic 28 Mar '09

28 Mar '09

[This message is actually being posted by Aahz <aahz(a)pythoncraft.com> because Perica's posts are not making it out to the newsgroup; I suspect some kind of MIME weirdness] Included in this release: ------------------------- This release contains three different packages for three different Python versions: Python 2.5.4, Python 2.6.1 and Python 3.0.1. Packages are totally independent and can run side-by-side each other or any other Python installation. Software included (in alphabetical order per package): Portable Python 1.1 based on Python 2.5.4 - Django-1.0.2-final - IPython-0.9.1 - Matplotlib-0.98.5.2 - Numpy-1.2.1 - PIL-1.1.6 - Py2exe-0.6.9 - PyGame-1.8.1 - PyReadline-1.5 - PyScripter v1.9.9.6 - PyWin32-212 - Rpyc-2.60 - Scipy-0.7.0b1 - SPE-0.8.4.c - VPython-3.2.11 - wxPython-unicode-2.8.9.1 Portable Python 1.1 based on Python 2.6.1 - Django-1.0.2-final - IPython-0.9.1 - PIL-1.1.6 - Py2exe-0.6.9 - PyGame-1.8.1 - PyReadline-1.5 - PyScripter v1.9.9.6 - PyWin32-212 - Rpyc-2.60 - SPE-0.8.4.c - wxPython-unicode-2.8.9.1 Portable Python 1.1 based on Python 3.0.1 - PyScripter v1.9.9.6 - Rpyc-2.60 Installation and use: --------------------- After downloading entire distribution or specific Python version package, run the installer, select the target folder and you are done! In the main folder you will find shortcuts for selected applications in that package. Some of the most popular free Python IDE=92s come preinstalled and preconfigured with Portable Python. How to use and configure them further please consult their documentation or project sites. All your ideas/issues/success stories you can post on the Portable Python Google group - http://groups.google.com/group/portablepython What is Portable Python? ------------------------ Portable Python is a Python programming language preconfigured to run directly from a USB stick, SD card or any other removable storage, enabling you to have, at any time, portable programming environment. Just download and extract to your portable device and in 10 minutes you are ready to create your next Python application. Keep pythoning! Perica Zivkovic http://www.PortablePython.com

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"re-try" 0.7: Try Python regular expressions online
by Christof Hoeke 28 Mar '09

28 Mar '09

====== re-try ====== :version: 0.7 URL --- http://re-try.appspot.com/ what is it ---------- A small online browser application to try out Python regular expressions. It is based on http://cthedot.de/retest/ which has been around for some years but I never had a Python hosting service available so was only availabel for download. Putting it online on GAE was very easy though. The source code is not available publicly, if you are interested I might put it on Google Code or so. It is strongly based on retest 0.6.1 so no real surprises anyway. Please let me know what you think! thanks Christof

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Python-URL! - weekly Python news and links (Mar 28)
by Gabriel Genellina 28 Mar '09

28 Mar '09

QOTW: "Knowing C++ does tend to be a bit of a handicap, but I think any competent programmer could learn Python." - Grant Edwards Introducing Python to others - which amazing features to show? http://groups.google.com/group/comp.lang.python/t/6e366356eca17c98/ Do deep inheritance trees degrade efficiency? http://groups.google.com/group/comp.lang.python/t/b6d3bc9aabaa1c2/ Don't use "is" to compare bound methods: http://groups.google.com/group/comp.lang.python/t/649d8c41ae7da979/ Using a dictionary to represent a "sparse" mapping: http://groups.google.com/group/comp.lang.python/t/37799c1005fd238/ From linked lists to state machines: different ways to represent the same structure: http://groups.google.com/group/comp.lang.python/t/18b1db683ee947a2/ The next() builtin for iterators may take a not-so-well-known second argument: http://groups.google.com/group/comp.lang.python/t/71af51f9dbd606f/ Python as a shell scripting language: http://groups.google.com/group/comp.lang.python/t/dde1046e530afee1/ What does "64-bit Python" mean exactly? http://groups.google.com/group/comp.lang.python/t/f2de87ea01d6e28d/ The best way to check for an empty list: http://groups.google.com/group/comp.lang.python/t/d675130d1be127a0/ Garbage collection, cyclic references and finalizers discussed: http://groups.google.com/group/comp.lang.python/t/82ebfec89bcc906c/ Why methods like x.tolist() aren't widely used (and we use list(x) instead) http: http://groups.google.com/group/comp.lang.python/t/b2040ed503581f15/ Relative imports are *not* the same as relative #include in C/C++: http://groups.google.com/group/comp.lang.python/t/5056d44549082313/ Doing multiple calls to Py_Initialize/Py_Finalize isn't safe: http://groups.google.com/group/comp.lang.python/t/7b8eef94aa2af6f7/ 3.1a1 file I/O is much faster than 3.0, and this greatly impacts pickle performance: http://groups.google.com/group/comp.lang.python/t/1bb5c57a8f2e736e/ The decline of c.l.p over the years (according to some!) http://groups.google.com/group/comp.lang.python/t/ad08eb9eb83a4e61/d30aaa47… ======================================================================== 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 enthusiats": http://pythonpapers.org/ The Python Magazine is a technical monthly devoted to Python: http://pythonmagazine.com Readers have recommended the "Planet" sites: http://planetpython.org 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/ The somewhat older Vaults of Parnassus ambitiously collects references to all sorts of Python resources. http://www.vex.net/~x/parnassus/ 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 *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: Portable Python 1.1 released
by Perica Zivkovic 27 Mar '09

27 Mar '09

Included in this release: ------------------------- This release contains three different packages for three different Python versions – Python 2.5.4, Python 2.6.1 and Python 3.0.1. Packages are totally independent and can run side-by-side each other or any other Python installation. Software included (in alphabetical order per package): Portable Python 1.1 based on Python 2.5.4 - Django-1.0.2-final - IPython-0.9.1 - Matplotlib-0.98.5.2 - Numpy-1.2.1 - PIL-1.1.6 - Py2exe-0.6.9 - PyGame-1.8.1 - PyReadline-1.5 - PyScripter v1.9.9.6 - PyWin32-212 - Rpyc-2.60 - Scipy-0.7.0b1 - SPE-0.8.4.c - VPython-3.2.11 - wxPython-unicode-2.8.9.1 Portable Python 1.1 based on Python 2.6.1 - Django-1.0.2-final - IPython-0.9.1 - PIL-1.1.6 - Py2exe-0.6.9 - PyGame-1.8.1 - PyReadline-1.5 - PyScripter v1.9.9.6 - PyWin32-212 - Rpyc-2.60 - SPE-0.8.4.c - wxPython-unicode-2.8.9.1 Portable Python 1.1 based on Python 3.0.1 - PyScripter v1.9.9.6 - Rpyc-2.60 Installation and use: --------------------- After downloading entire distribution or specific Python version package, run the installer, select the target folder and you are done! In the main folder you will find shortcuts for selected applications in that package. Some of the most popular free Python IDE’s come preinstalled and preconfigured with Portable Python. How to use and configure them further please consult their documentation or project sites. All your ideas/issues/success stories you can post on the Portable Python Google group - http://groups.google.com/group/portablepython Keep pythoning! Perica Zivkovic http://www.PortablePython.com

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[ANN] pyxser-0.1r (release 0.1)
by Daniel Molina Wegener 26 Mar '09

26 Mar '09

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - From the readme file: - -----8<----------8<----------8<----------8<----- pxyser --- python xml serialization pyxser stands for Python XML Serialization, it's Python object serializer that does the job in a standard way. Unlike other serializers, it uses structured document defined in the pyxser DTD, has a FPI (forma public identifier) and the deserialization process run before validating the serialized object document against the pyxser DTD. it has the next functions: string pyxser.serialize(object) serilizes the given object and return it's XML representation. object pyxser.unserialize(string) deserializes the given string into it's native python reprsentation. it needs that all modules referenced in the serilized XML can be accesible to the pyxser extension. boolean pyxser.validate(string) validates the given XML string against the pyxser DTD. you don't need to call this function before every deserialization, because pyxser does the validation internally. A sample of a serialized object is the XML as follows: <?xml version="1.0" encoding="utf-8"?> <pyxs:obj xmlns:pyxs="http://projects.coder.cl/pyxser/model/" version="1.0" type="TestAnotherObject" module="testpkg.sample" id="id-136688140"> <pyxs:prop type="str" name="first_element">456</pyxs:prop> <pyxs:prop type="str" name="second_element">789</pyxs:prop> </pyxs:obj> pyxser supports cross referenced objects and nested referenced object, because it defines the a ref attribute as IDREF which is used to link internal nodes in the document tree. *** See the INSTALLING file for installing instructions. *** *** See the AUTHORS file to get information about the authors *** The pyxser web page is: http://coder.cl/software/pyxser/ Best regards, Daniel Molina Wegener ### $Id: README 29 2009-03-27 01:59:57Z damowe $ ### - -----8<----------8<----------8<----------8<----- Best regards, - -- .O. | Daniel Molina Wegener | FreeBSD & Linux ..O | dmw [at] coder [dot] cl | Open Standards OOO | http://coder.cl/ | FOSS Developer -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (FreeBSD) iQIcBAEBCgAGBQJJzEbaAAoJEHxqfq6Y4O5NXcEQAJQQqEWKvfbEKHZWC3RP4B/w isuiiyuVig7+nsBvRFoqoeTj5JtAUBN4xykH3TiqojYM7osA9+dPDRg7JfJtjf1t EaCB7u3HuIeR5udyoMpFSEpmJejr7gcMwOWLhBHZrhpgxhiAsioC1QjBtHsSnsuz 8pPp9/eqdTLvPhgkk8shFq0tvkM0pvF4/E9c4AACqz96frZO+S0jiIqPnu2VOkSq UX+/H2HkvvoDkh6+nS3vafC2VKC4U0c3MSu2rgljuxp5sDOBJLEYixCzw/U7Dtdo jgD12LPnqPa/3sQY2FsNkYosIp+Aj5C09i/jCc+MMw9RDJ3QmJaZtfC+0stU32xV w/WiOFjmGrgc+H3UmQXALdbTSbK/WyjX/iJ4R+04GCZW2y6b1IJwis//mPiWZe+K KgREo3KBx2wE/rrrHHEfmQZX/zaSxbY+qL4696OrB7q2lduyG6izmVBaOColJ/eY 5QDVrP0Y+NUL0j6rgd9gJj4/cG2sVr9aQant2WizwKSMK/fh3k/8gOLXU6JMjYTI e7mWWfjRrJGvgDGUD42EmAnuVXa4OAZUC20uH/kpCvfr+iAfM0WXk/6kzw1Qcu7o dHqXGK4/vHcVlX0UnJE843d5+eok932SkZPRLvM6L8pdwjB8nJ17P85pkfgysUDh Ofk5cKuQ2HF+EgH5Quki =QhlG -----END PGP SIGNATURE-----

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Python-announce-list March 2009