Mailman 3 May 2007 - Python-announce-list

multitask 0.1.0: Cooperative multitasking and asynchronous I/O using generators
by Christopher Stawarz May 23, 2007

May 23, 2007

I'd like to announce the first release of multitask, a module that allows Python programs to use generators to perform cooperative multitasking and asynchronous I/O. The basic structure of the module was inspired by the Trampoline class outlined in PEP 342, but it also includes support for I/O operations (using a common select() loop a la Twisted), communication between tasks via queues, sleeping, and timeouts on blocking operations. For a bit more information and some basic examples, see: http://o2s.csail.mit.edu/o2s-wiki/multitask The package source includes more comprehensive documentation (in the module's doc strings), as well as a few example scripts. It can be download from: http://o2s.csail.mit.edu/download/multitask/ Questions, comments, and bug reports are welcome. Cheers, Chris Stawarz

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NumPy 1.0.3 released
by Travis Oliphant May 23, 2007

May 23, 2007

We are pleased to announce the release of NumPy 1.0.3 Hopefully, this release will work better with multiple interpreters as well as having some significant bugs fixed. Other changes include * x/y follows Python standard on mixed-sign division for array scalars and numpy arrays * iinfo added to provide information on integer data-types * improvements to SWIG typemaps, numpy.distutils, and f2py * improvements to separator handling in fromfile and fromstring * many, many bug fixes Thank you to everybody who contributed to the recent release. Best regards, NumPy Developers http://numpy.scipy.org

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DFW Pythoneers: 4th Saturday Meeting THIS Sat
by Jeff Rush May 23, 2007

May 23, 2007

Although it is Memorial Day weekend, we're going to hold a meeting at Nerdbooks as usual. I've checked with the owner and the store is open, and hopefully some of you will show up, although I've not heard many replies as to whether you will/won't make it. As a result of work on the Forrester survey, we've got some source examples, designed to be clear and easy to understand, for us to walk through. - A mashup by Martin of placing temperature readings collected from one site using REST, onto a DFW Google map. - HTML page generation using Twisted Nevow/STAN, along with an RSS feed parser module to embed a list of the N most recent news stories. - Simple but powerful presentation and form validation using the Gizmo(QP) framework, which does the validation both in the server *and* in the browser using JavaScript. No big deal, until you realize the JavaScript in the browser is generated from the Python source, and the whole source fits on a couple of screens. - An RSS feed reader that pulls down all images linked to, from one of those photo sites, and the source is 15 lines of Python. - A cool module, NamedTuples, from the Python Cookbook site. - A couple of small programs that apply the screenscraping module "BeautifulSoup" to the task of extracting the set of mailing list, and associated archives, from a Mailman website. And if we need more, I've got PyFUSE, a Filesystem in Userspace in Python, where you can overlay a filesystem metaphor over your database, website or existing filesystem -- think autobackup-on-write. It looks quite powerful. And a silly program I whipped up one night to play with some Lisp-like atom ideas, where you can have bound and unbound names, without a lot of quoting syntax. A bit strange but small and introduces a new use for property descriptors. Hope to see you there, and bring your own topics or questions, along with your laptops. We may not get to everything but swimming in everyone's 'lightning talk'-like ideas is fun. Time and Place: Nerdbooks.com in Richardson (see the website for directions) 2pm until 5pm Oh, and all but the FUSE source examples are already in our club subversion repository, under the Projects/ directory. You can find a link to browse the source through the web at http://dfwpython.org, in the menu on the left. Jeff Rush DFW Pythoneers Organizer

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EuroPython 2007: Registration is Open!
by Paul Boddie May 22, 2007

May 22, 2007

Registration is now open for EuroPython 2007: the European Python and Zope Conference, taking place this year in Vilnius, Lithuania from Monday 9th July to Wednesday 11th July. Once again, we thank supporters of EuroPython for their patience, and encourage early registration by offering the usual generous discount on fees for registrations made up until Friday 8th June. Online registration will close on Monday 2nd July. More information on registration can be found here: * http://www.europython.org/sections/registration_issues/how-to-register For more general information on the conference, please visit... * http://www.europython.org/ We look forward to seeing you in Vilnius! P.S. It's still possible to submit a talk proposal for EuroPython: there are just a few days remaining before the revised submission deadline of Friday 25th May. See the conference site for details!

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ANNOUNCE: pygtkmvc-1.0.1 has been released
by Roberto Cavada May 22, 2007

May 22, 2007

Version 1.0.1 of pygtkmvc has been released. pygtkmvc can be download from the project homepage: <http://pygtkmvc.sourceforge.net> ============== About pygtkmvc ============== pygtkmvc is a fully Python-based implementation of the Model-View-Controller (MVC) and Observer patterns for the PyGTK2 toolkit. MVC is a pattern that can be successfully used to design and develop well structured GUI applications. The MVC pattern basically helps in separating semantics and data of the application, from their representation. The Observer pattern helps to weaken dependencies among parts that should be separated, but need to be connected each other. pygtkmvc provides a powerful and still simple infrastructure to help designing and implement GUI applications based on the MVC and Observer patterns. Features The framework has been designed to be: * Essential and small, it does only what it was designed for. * Not an external dependency for your application: it fits in 80KB and can be released along with it. * Easy to understand and to use; fully documented. * Portable: straightly runs under many platforms. =================== About release 1.0.1 =================== This is a minor release that mainly features a few bug fixes. * New features: - Custom widgets into glade file are now supported by views. * Bug fixes: - Fixed access to properties in multi-threading models. - Fixed a bug in the observable properties registration mechanism. * Many thanks to: - Guillaume Libersat <glibersat AT linux62.org> for providing a patch that enable reading custom widgets from glade files. - Phillip Calvin <phillipc AT toasterlogic.com> and Andreas Poisel <ap AT automatisch.cc> for reporting bugs. - Jeffrey Barish <jeff_barish AT earthlink.net> for providing feedback. - Kartik Mistry <kartik.mistry AT gmail.com> for his work on Debian package. -- Roberto Cavada <cavada AT irst.itc.it> <P><A HREF="http://pygtkmvc.sourceforge.net">pygtkmvc 1.0.1</A> - Pygtk MVC is a thin, multiplatform framework that helps to design and develop GUI applications based on the PyGTK toolkit. (22-May-07) ------------------ ITC -> dall'1 marzo 2007 Fondazione Bruno Kessler ITC -> since 1 March 2007 Fondazione Bruno Kessler ------------------

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Volume 2, Issue 2 of The Python Papers is now available! Download it from www.pythonpapers.org.
by tleeuwenburg＠gmail.com May 22, 2007

May 22, 2007

Volume 2, Issue 2 of The Python Papers is now available! Download it from www.pythonpapers.org. This issue marks a major landmark in our publication. We present a number of industry articles. These include "Python in Education" and "MPD WebAMP", as well as a great insight into Python in Germany, a wrap-up of PyCon 2007, a preview of EuroPython 2007 and a look at some great videos prepared by primary school students. Our peer-reviewed section reproduces two selected papers which were originally presented at the Open Source Developer's Conference 2006 (Melbourne, Australia). Check it out and let us know what you think. All the best, The Python Papers Team

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Leo 4.4.3 beta 1 released
by Edward K Ream May 21, 2007

May 21, 2007

Leo 4.4.3 beta 1 is available at: http://sourceforge.net/project/showfiles.php?group_id=3458&package_id=29106 Leo is a text editor, data organizer, project manager and much more. See: http://webpages.charter.net/edreamleo/intro.html The highlights of Leo 4.4.3: ---------------------------- - Added support for chapters in Leo's core. Chapters are disabled by default. To enable, set @bool use_chapters=True. - Added support for zipped .leo files. - Added a leoBridge module that allows full access to all of Leo's capabilities from programs running outside of Leo. - Removed all gui-dependent code from Leo's core. - Better support for the winpdb debugger. - Added support for @enabled-plugins nodes in settings files. - Added support for @open-with nodes in settings files. - The__wx_gui plugin is now functional. - Many minor improvements, new settings, commands and bug fixes. Links: ------ Leo: http://webpages.charter.net/edreamleo/front.html Home: http://sourceforge.net/projects/leo/ Download: http://sourceforge.net/project/showfiles.php?group_id=3458 CVS: http://leo.tigris.org/source/browse/leo/ Quotes: http://webpages.charter.net/edreamleo/testimonials.html -------------------------------------------------------------------- Edward K. Ream email: edreamleo(a)charter.net Leo: http://webpages.charter.net/edreamleo/front.html -------------------------------------------------------------------------------------------------------------------

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Updated Cygwin Package: python-2.5.1-2
by Jason Tishler May 21, 2007

May 21, 2007

New News: === ==== I have updated the version of Python to 2.5.1-2. The tarballs should be available on a Cygwin mirror near you shortly. The following is the only notable change since the previous release: o include bz2 module that was accidentally omitted in the previous release Old News: === ==== Python is an interpreted, interactive, object-oriented programming language. If interested, see the Python web site for more details: http://www.python.org/ Please read the README file: /usr/share/doc/Cygwin/python-2.5.1.README since it covers requirements, installation, known issues, etc. Standard News: ======== ==== To update your installation, click on the "Install Cygwin now" link on the http://cygwin.com/ web page. This downloads setup.exe to your system. Then, run setup and answer all of the questions. If you have questions or comments, please send them to the Cygwin mailing list at: cygwin(a)cygwin.com . *** CYGWIN-ANNOUNCE UNSUBSCRIBE INFO *** If you want to unsubscribe from the cygwin-announce mailing list, look at the "List-Unsubscribe: " tag in the email header of this message. Send email to the address specified there. It will be in the format: cygwin-announce-unsubscribe-you=yourdomain.com(a)cygwin.com If you need more information on unsubscribing, start reading here: http://sources.redhat.com/lists.html#unsubscribe-simple Please read *all* of the information on unsubscribing that is available starting at this URL. Jason -- PGP/GPG Key: http://www.tishler.net/jason/pubkey.asc or key servers Fingerprint: 7A73 1405 7F2B E669 C19D 8784 1AFD E4CC ECF4 8EF6

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Python-URL! - weekly Python news and links (May 21)
by Gabriel Genelli May 21, 2007

May 21, 2007

QOTW: "A java class full of static methods translates to a python module populated with functions in general." - Arnaud Delobelle "Neurons are far more valuable than disk space, screen lines, or CPU cycles." - Ben Finney How do people install Python and libraries in a server without root access? http://groups.google.com/group/comp.lang.python/browse_thread/thread/942260… Inference of column data types in csv files, accomodation for wrong items and even Bayesian inference can improve trust in computed results: http://groups.google.com/group/comp.lang.python/browse_thread/thread/29e7bc… A proposed change on dict and set documented behavior highlights the differences between PHP style for docs and Python's: http://groups.google.com/group/comp.lang.python/browse_thread/thread/5a5be5… You refactored code, yet your pickled instances still use the old class names and so refuse to load. Here are ways to load them successfully again: http://groups.google.com/group/comp.lang.python/browse_thread/thread/e3dda8… The ever-lasting question "Which is the best web framework?" as an excuse to analyze some high traffic sites and its architectures, plus insights from Alex Martelli: http://groups.google.com/group/comp.lang.python/browse_thread/thread/6b8091… John Nagle captures Python in a single taxonomic paragraph, and Alex Martelli details his GUI preferences, in a thread valuable for more than just the beginners its original poster might have imagined: http://groups.google.com/group/comp.lang.python/browse_thread/thread/c75549… Comparing Python to other languages, plus "popularity" statistics from Google: http://groups.google.com/group/comp.lang.python/browse_thread/thread/b1d18c… Don't use os.close on sockets directly: http://groups.google.com/group/comp.lang.python/browse_thread/thread/6e724f… One of the longest threads in history, started last week and still going: PEP 3131, allowing non-ASCII identifiers. http://groups.google.com/group/comp.lang.python/browse_thread/thread/ebb6bb… How long does it take to "uniquify" a collection? http://groups.google.com/group/pl.comp.lang.python/msg/dc3618b18e63f3c9 There are many ways to treat data (packaged here in a file) as code. Some of them appear in this thread: http://groups.google.com/group/comp.lang.python/browse_thread/thread/1d7517… How *does* a stylish Pythoneer emit the binary representation of an integer? http://groups.google.com/group/comp.lang.python/browse_thread/thread/90911d… ======================================================================== 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 Mygale is a news-gathering webcrawler that specializes in (new) World-Wide Web articles related to Python. http://www.awaretek.com/nowak/mygale.html While cosmetically similar, Mygale and the Daily Python-URL are utterly different in their technologies and generally in their results. For far, FAR more Python reading than any one mind should absorb, much of it quite interesting, Planet Python indexes much of the universe of Pybloggers. http://www.planetpython.org/ The Python Papers aims to publish "the efforts of Python enthusiats". http://pythonpapers.org/ 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/groups?oi=djq&as_ugroup=comp.lang.python.announce Python411 indexes "podcasts ... to help people learn Python ..." Updates appear more-than-weekly: http://www.awaretek.com/python/index.html Steve Bethard continues the marvelous tradition early borne by Andrew Kuchling, Michael Hudson, Brett Cannon, Tony Meyer, and Tim Lesher of intelligently summarizing action on the python-dev mailing list once every other week. http://www.python.org/dev/summary/ 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/donate.html Kurt B. Kaiser publishes a weekly report on faults and patches. http://www.google.com/groups?as_usubject=weekly%20python%20patch 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://aspn.activestate.com/ASPN/Cookbook/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 are http://www.python.org/channews.rdf http://bootleg-rss.g-blog.net/pythonware_com_daily.pcgi http://python.de/backend.php 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/ The online Python Journal is posted at pythonjournal.cognizor.com. editor(a)pythonjournal.com and editor(a)pythonjournal.cognizor.com welcome submission of material that helps people's understanding of Python use, and offer Web presentation of your work. 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 Archive probing tricks of the trade: http://groups.google.com/groups?oi=djq&as_ugroup=comp.lang.python&num=100 http://groups.google.com/groups?meta=site%3Dgroups%26group%3Dcomp.lang.pyth… Previous - (U)se the (R)esource, (L)uke! - messages are listed here: http://www.ddj.com/topic/python/ (requires subscription) http://groups-beta.google.com/groups?q=python-url+group:comp.lang.python*&s… http://purl.org/thecliff/python/url.html (dormant) or http://groups.google.com/groups?oi=djq&as_q=+Python-URL!&as_ugroup=comp.lan… 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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Pyro 3.7 (remote objects)
by Irmen de Jong May 19, 2007

May 19, 2007

I'm happy to announce Pyro 3.7 -- Python's own powerful remote method invocation technology! You can get it via http://pyro.sourceforge.net, then go to the SF project homepage download area. This is a small improvement release since Pyro 3.6. New stuff: - bdist_rpm typo fix in setup.cfg - renamed all batch files with 'pyro-' prefix to avoid name clashes (debian package already had this) - NS broadcast retries are a bit faster now - Pyro.core.SynchronizedObjBase now correctly handles string exceptions - the NS nt service won't respond to shutdown requests anymore - wxnsc updated to recent WxPython API, deprecation warning is gone Have fun, and thanks for your interest, support, and feedback! --Irmen de Jong ---> What is Pyro? Pyro is an acronym for PYthon Remote Objects. Pyro is an advanced and powerful Distributed Object Technology system written entirely in Python, that is designed to be very easy to use. It is extremely easy to implement a distributed system with Pyro, because all network communication code is abstracted and hidden from your application. You just get a remote Python object and invoke methods on the object on the other machine. Pyro offers you a Name Server, an Event Service, mobile objects, remote exceptions, dynamic proxies, remote attribute access, automatic reconnection, a very good and detailed manual, and many examples to get you started right away.

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