Mailman 3 November 2008 - Python-announce-list

[ANN] ChiPy November Meeting Thursday the 13th at DePaul
by Brian Ray 08 Nov '08

08 Nov '08

Chicago Python User Group ========================= Sick of faceless social networking? Come meet some of the most highly regarded Python programmers face-2-face. This will be our best meeting yet to date! You are invited. Everyone currently involved or just curious in Python, welcome. Feel free to bring any combination of: friend, date, co-worker, teacher, student, kids, roommate, robot, clone, or boss :) We have excellent talks lined up this month from ChiPy veterans who's expertise span from scientific to real-world applications. Some lighting talks may follow, time provided. Fun! When ---- Thursday, November 13th, ~7pm Topics ------ * Stackless, David Durham, Jr. 25m * Amazon EC2/Boto, Chris McAvoy 25m * PyLucid, Steve Githens 25m * Lighting Talks: optparse,... 10m each Add your lighting talk to the wiki at -> <http://chipy.org> NOTE: Due to the high level of interest in various talks, I have limited talk length. Offenders will be severely punished. Location -------- DePaul Lincoln Park Student Center 2250 N. Sheffield, Room 380 About ChiPy ----------- ChiPy is a group of Chicago Python Programmers, l33t, and n00bs. Meetings are held monthly at various locations around Chicago. Also, ChiPy is a proud sponsor of many Open Source and Educational efforts in Chicago. Stay tuned to the mailing list for more info. ChiPy website: <http://chipy.org> ChiPy Mailing List: <http://mail.python.org/mailman/listinfo/chicago> ChiPy Announcement *ONLY* Mailing List: <http://mail.python.org/mailman/listinfo/chipy-announce > Python website: <http://python.org>

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Factory 1.0: Object Oriented Currying
by Pete 07 Nov '08

07 Nov '08

Overview ======== Factory is an object-oriented approach to partial function application, also known as currying. The Factory module is a more powerful implementation of this pattern. Some improvements include: - safer, as invalid arguments are detected immediately, instead of at call time - intelligent support for classes, instance methods & all other callables - bound arguments can be inspected and modified as attributes - several convenient methods for (re)binding arguments - no "Russian dolls" of nested lambdas Using Factories can: - simplify writing callbacks - reduce bugs in concurrent applications - provide easy lazy evaluation Links ===== More info at: http://pypi.python.org/pypi/Factory/ Source at: http://code.google.com/p/python-factory/

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ANN: TakeNote 0.4.4 - Note taking and organization
by rasmus 07 Nov '08

07 Nov '08

In this release: * colored font * XDG compliant configuration * bug fixes TakeNote is a simple cross-platform note taking program implemented in Python. I have been using it for my research and class notes, but it should be applicable to many note taking situations. TakeNote is ideal for storing your class notes, TODO lists, research notes, journal entries, paper outlines, etc in a simple notebook hierarchy with rich-text formatting, images, and more. Using full-text search, you can retrieve any note for later reference. TakeNote is designed to be cross-platform (runs on Windows, Linux, and MacOS X, implemented in Python and PyGTK) and stores your notes in simple and easy to manipulate file formats (HTML and XML). Archiving and transferring your notes is as easy as zipping or copying a folder. TakeNote is licensed under GPL. TakeNote 0.4.4 has the following features: * Rich-text formatting * Bullet point lists * Colored font * Inline images * Hierarchical organization for notes * Full-text search * Integrated screenshot * Extension framework * Spell checking (via gtkspell) * Auto-saving * Built-in backup and restore (archive to zip files) * Cross-platform (Linux, Windows, MacOS X) Web site and download: http://rasm.ods.org/takenote Documentation: http://rasm.ods.org/takenote/manual.shtml Matt Rasmussen

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Announcing bzr 1.9
by Martin Pool 07 Nov '08

07 Nov '08

I'm happy to announce the release of bzr 1.9. This release of Bazaar adds a new repository format, ``1.9``, with smaller and more efficient index files. This format can be specified when creating a new repository, or used to losslessly upgrade an existing repository. bzr 1.9 also speeds most operations over the smart server protocol, makes annotate faster, and uses less memory when making checkouts or pulling large amounts of data. Thanks to everyone who sent patches, bug reports, suggestions and encouragement. bzr 1.9 is now available from http://bazaar-vcs.org/Download as a source tarball; packages for various systems will be available soon. Changes since the last release are listed below. -- Martin bzr 1.9 2008-11-07 ------------------ This release of Bazaar adds a new repository format, ``1.9``, with smaller and more efficient index files. This format can be specified when creating a new repository, or used to losslessly upgrade an existing repository. bzr 1.9 also speeds most operations over the smart server protocol, makes annotate faster, and uses less memory when making checkouts or pulling large amounts of data. BUG FIXES: * Fix "invalid property value 'branch-nick' for None" regression with branches bound to svn branches. (Martin Pool, #293440) * Fix SSL/https on Python2.6. (Vincent Ladeuil, #293054) * ``SFTPTransport.readv()`` had a bug when requests were out-of-order. This only triggers some-of-the-time on Knit format repositories. (John Arbash Meinel, #293746) bzr 1.9rc1 2008-10-31 --------------------- NEW FEATURES: * New Branch hook ``transform_fallback_location`` allows a function to be called when looking up the stacked source. (Michael Hudson) * New repository formats ``1.9`` and ``1.9-rich-root``. These have all the functionality of ``1.6``, but use the new btree indexes. These indexes are both smaller and faster for access to historical information. (John Arbash Meinel) IMPROVEMENTS: * ``BTreeIndex`` code now is able to prefetch extra pages to help tune the tradeoff between bandwidth and latency. Should be tuned appropriately to not impact commands which need minimal information, but provide a significant boost to ones that need more context. Only has a direct impact on the ``--development2`` format which uses btree's for the indexes. (John Arbash Meinel) * ``bzr dump-btree`` is a hidden command introduced to allow dumping the contents of a compressed btree file. (John Arbash Meinel) * ``bzr pack`` now tells the index builders to optimize for size. For btree index repositories, this can save 25% of the index size (mostly in the text indexes). (John Arbash Meinel) * ``bzr push`` to an existing branch or repository on a smart server is faster, due to Bazaar making more use of the ``get_parent_map`` RPC when querying the remote branch's revision graph. (Andrew Bennetts) * default username for bzr+ssh and sftp can be configured in authentication.conf. (Aaron Bentley) * launchpad-login now provides a default username for bzr+ssh and sftp URLs, allowing username-free URLs to work for everyone. (Aaron Bentley) * ``lp:`` lookups no longer include usernames, making them shareable and shorter. (Aaron Bentley) * New ``PackRepository.autopack`` smart server RPC, which does autopacking entirely on the server. This is much faster than autopacking via plain file methods, which downloads a large amount of pack data and then re-uploads the same pack data into a single file. This fixes a major (although infrequent) cause of lengthy delays when using a smart server. For example, pushing the 10th revision to a repository with 9 packs now takes 44 RPCs rather than 179, and much less bandwidth too. This requires Bazaar 1.9 on both the client and the server, otherwise the client will fallback to the slower method. (Andrew Bennetts) BUG FIXES: * A failure to load a plugin due to an IncompatibleAPI exception is now correctly reported. (Robert Collins, #279451) * API versioning support now has a multiple-version checking api ``require_any_api``. (Robert Collins, #279447) * ``bzr branch --stacked`` from a smart server to a standalone branch works again. This fixes a regression in 1.7 and 1.8. (Andrew Bennetts, #270397) * ``bzr co`` uses less memory. It used to unpack the entire WT into memory before writing it to disk. This was a little bit faster, but consumed lots of memory. (John Arbash Meinel, #269456) * ``bzr missing --quiet`` no longer prints messages about whether there are missing revisions. The exit code indicates whether there were or not. (Martin Pool, #284748) * Fixes to the ``annotate`` code. The fast-path which re-used the stored deltas was accidentally disabled all the time, instead of only when a branch was stacked. Second, the code would accidentally re-use a delta even if it wasn't against the left-parent, this could only happen if ``bzr reconcile`` decided that the parent ordering was incorrect in the file graph. (John Arbash Meinel) * "Permission denied" errors that occur when pushing a new branch to a smart server no longer cause tracebacks. (Andrew Bennetts, #278673) * Some compatibility fixes for building the extensions with MSVC and for python2.4. (John Arbash Meinel, #277484) * The index logic is now able to reload the list of pack files if and index ends up disappearing. We still don't reload if the pack data itself goes missing after checking the index. This bug appears as a transient failure (file not found) when another process is writing to the repository. (John Arbash Meinel, #153786) * ``bzr switch`` and ``bzr bind`` will now update the branch nickname if it was previously set. All checkouts will now refer to the bound branch for a nickname if one was not explicitly set. (Marius Kruger, #230903) DOCUMENTATION: * Improved hook documentation. (Michael Ernst) API CHANGES: * commands.plugins_cmds is now a CommandRegistry, not a dict. INTERNALS: * New AuthenticationConfig.set_credentials method allows easy programmatic configuration of authetication credentials.

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RELEASED Python 3.0rc2
by Barry Warsaw 07 Nov '08

07 Nov '08

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On behalf of the Python development team and the Python community, I am happy to announce the second release candidate for Python 3.0. This is a release candidate, so while it is not suitable for production environments, we strongly encourage you to download and test this release on your software. We expect only critical bugs to be fixed between now and the final release, currently planned for 03- Dec-2008. If you find things broken or incorrect, please submit bug reports at http://bugs.python.org For more information and downloadable distributions, see the Python 3.0 website: http://www.python.org/download/releases/3.0/ See PEP 361 for release schedule details: http://www.python.org/dev/peps/pep-0361/ Enjoy, - -Barry Barry Warsaw barry(a)python.org Python 2.6/3.0 Release Manager (on behalf of the entire python-dev team) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (Darwin) iQCVAwUBSRO7wHEjvBPtnXfVAQIYrQP+Lynpa/p7VMY/YxJyjxiBI0bvOATPIKbE jqu9ZFwXlO19+G4bFiAoYviY5UFYPm3TpbMoso2qNoJsJFLSt4d+AycWWcaXKd08 vpifsxVoWvdLCLZtT7ioMBJh/juu+Pchf2o2l+PHm5aWlLvq/24uu8YKbpSKKbr9 K4gB4ecYd3A= =3UPl -----END PGP SIGNATURE-----

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2009 Python class schedule
by Python Training 06 Nov '08

06 Nov '08

A page describing our 2009 Python class offerings has just been posted here: http://home.earthlink.net/~python-training/2009-public-classes.htm The first class in 2009 will be held January 27-30, and is now open for enrollments. These are public classes, open to individuals. They provide in-depth and hands-on introductions to Python and its common applications, and are based upon the instructor's popular Python books. Thanks for your interest, --Mark Lutz at Python Training

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Fwd: Cisco's $100,000 Developer Contest
by Guido van Rossum 06 Nov '08

06 Nov '08

This seems of interest to Python developers all over the world. Develop a Python app to run on a Cisco router and win real money! --Guido ---------- Forwarded message ---------- From: Guido van Rossum <guido(a)python.org> Date: Thu, Nov 6, 2008 at 1:14 PM Subject: Re: For Guido van Rossum: Cisco's $100,000 Developer Contest To: Nicole Dawley <nicole(a)m80im.com> Hey Nicole, I'll forward this to some mailing lists and write a brief blog entry about it. Thanks for letting me know! --Guido On Thu, Nov 6, 2008 at 1:06 PM, Nicole Dawley <nicole(a)m80im.com> wrote: > Hello Guido, > > > > I'm writing to introduce myself and let you know about Cisco's $100,000 > Developer Contest. The contest is for programs written in C, Java, Python, > Bash or Perl on top of the Cisco's ISR router. > > > > There's some pretty forward stuff that can be done with these routers; in > particular, the development platform for the ISR has a Linux kernel and all > the application processes are isolated, so there's no need to worry about > memory runaway, etc. The best part is that the first phase doesn't require > any coding. > > > > The contest hasn't gotten much press yet and, although I can't guarantee > anything, the competition is slim at this point so there's a strong > opportunity for an individual coder or team to make an impact. > > > > If you find the contest interesting, I hope you'll consider writing an > article about it for your site. I think it's a killer opportunity for you > or your readers and we really need the help of people like you, who are > connected in the developer community, to get the word out! I can also > easily arrange for an interview with a Cisco geek (or most other PR ideas > you can imagine) so please let me know if that interests you as well. > > > > You can visit cisco.com/go/thinkinside for more details (we're also on > Facebook, et al). Also, listen to TechwiseTV stars Robb Boyd and Jimmy Ray > Purser chat about this exciting opportunity here: > youtube.com/watch?v=RrqTv3MkIHI. Feel free to post the video if you'd like. > > > > Sincere thanks for your consideration, > > > > Nicole Dawley > > > > > > ___________________________________ > Nicole Dawley > Social Media Marketing Manager > M80 | 2894 Rowena Ave. | Los Angeles, CA 90039 > e: nicole(a)m80im.com | p: 323.644.7800 x 233 l f: 323.644.7801 > > > > Subscribe to the RSS feed on M80's Newsroom Asset Blog: > > http://m80im.com/newsroom/ > > > > -- --Guido van Rossum (home page: http://www.python.org/~guido/) -- --Guido van Rossum (home page: http://www.python.org/~guido/)

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ANN: circuits-1.0a1 ready for testing
by James Mills 06 Nov '08

06 Nov '08

Hi all, I'm pleased to announce an early release of circuits-1.0a1. Circuits is an event-driven framework with a focus on Component Software Architectures where System Functionality is defined in Components. Components communicate with one another by propagating events throughout the system. Each Component can react to events and expose events to other parts of the system Components are able to manage their own events and can also be linked to other Components. Circuits has a clean architecture and has no external dependencies on any other library. It's simplistic design is unmatchable but yet delivers a powerful framework for building large, scalable, maintainable applications and systems. Circuits was a core integral part of the [http://trac.softcircuit.com.au/pymills pymills] library developed in 2006 and was partly inspired by the [http://trac.edgewall.org Trac] architecture. Here are two simple examples: == Hello World! == {{{ #!python >>> from circuits.core import listener, Component, Event, Manager >>> >>> class Hello(Component): ... @listener("hello") ... def onHELLO(self): ... print "Hello World!" >>> manager = Manager() >>> manager += hello >>> manager.push(Event(), "hello") >>> manager.flush() Hello World! }}} == Hello Web! == {{{ #!python from circuits.lib.web import Server, Controller class HelloWorld(Controller): def index(self, *args, **kwargs): return "Hello World!" server = Server(8000) server += HelloWorld() server.run() }}} Please visit the circuits website for more information about circuits, or to file bug reports or enhancements. http://trac.softcircuit.net.au/circuits/ cheers James -- -- -- "Problems are solved by method"

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RPyC has a new site
by sebulba 05 Nov '08

05 Nov '08

RPyC (Remote Python Call), the transparent and symmetric RPC library for python, has a new and improved site to celebrate the upcoming final release of version 3.00. http://rpyc.wikidot.com/ -tomer

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Elisa Media Center 0.5.17 Release
by Olivier Tilloy 03 Nov '08

03 Nov '08

Dear Python users, The Elisa team is happy to announce the release of Elisa Media Center 0.5.17, code-named "Dazed And Confused". 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 brings its usual lot of bug fixes and important performance improvements. A complete list of the new features and bugs fixed by this release is available at: https://bugs.launchpad.net/elisa/+milestone/0.5.17 Installers and sources can be downloaded from http://elisa.fluendo.com/download/ Bug reports and feature requests are welcome at https://bugs.launchpad.net/elisa/+filebug Have a nice evening, The Elisa team [1] http://www.gstreamer.net/ [2] https://code.fluendo.com/pigment/trac Elisa 0.5.17 "Dazed And Confused" ================================= This is Elisa 0.5.17, seventeenth release of the 0.5 branch. Bugs fixed since 0.5.16: - 289901: audio icon missing - 291183: Regression: the player cannot display popups - 293186: Multiple widgets give wrong visual focus information - 278953: .po files are not compilable as shipped in the tarballs - 290012: PPA package for 0.5.16 error: python 2.4 invalid syntax - 291479: [linux] Coherence plugin fails to load because of a dependency on httpd - 287506: [win32] installer shouldn't update the c libraries if it's not needed - 291553: Media scanner stop() dbus method does not return when not running 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: - Alessandro Decina - Benjamin Kampmann - David McLeod - Florian Boucault - Guido Amoruso - Guillaume Emont - Jesús Corrius - Lionel Martin - Olivier Tilloy - Philippe Normand

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