Mailman 3 March 2008 - Python-announce-list

ANN: next pyCologne meeting, Wed March 12, 2008, 6:30 pm
by Christopher Arndt March 9, 2008

March 9, 2008

Dear Pythonistas, the next monthly meeting of pyCologne, the Python User Group Köln, takes place on: Date: Wednesday March 12, 2008 Time: 6:30 Uhr pm CET c.t. Venue: Room 0.14 , ground floor, computing centre (RRZK-B) Universität Köln, Berrenrather Str. 136, 50937 Köln Agenda: * Presentation: "XML processing with a different twist - using SAX parsers, trees and the visitor pattern" by Günter Jantzen (in German) Around 8:30 pm we will head to a nearby establishment and have some drinks, food and a friendly chat. Further information about pyCologne, including directions, photographs and minutes of past meetings etc., can be found on our page in the German Python wiki: http://wiki.python.de/pyCologne CU, Christopher Arndt

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ANN: python4ply-1.0
by Andrew Dalke March 9, 2008

March 9, 2008

Home page: http://dalkescientific.com/Python/python4ply.html Download: http://dalkescientific.com/Python/python4ply-1.0.tar.gz Tutorial: http://dalkescientific.com/Python/python4ply-tutorial.html python4ply is a Python parser for the Python language. The grammar definition uses PLY, a parser system for Python modelled on yacc/lex. The parser rules use the "compiler" module from the standard library to build a Python AST and to generate byte code for .pyc file. You might use python4ply to experiment with variations in the Python language. The PLY-based lexer and parser are much easier to change than the C implementation Python itself uses or even the ones written in Python which are part of the standard library. This tutorial walks through examples of how to make changes in different levels of the system To give you an idea of what it can do, here are some examples from the tutorial: # integers with optional underscores separators amount = 20_000_000 print "You owe me", amount, "dollars" # sytax-level support for decimals % cat div.py # div.py print "float", 1.0 % 0.1 print "decimal", 0d1.0 % 0d0.1 % python compile.py -e div.py float 0.1 decimal 0.0 % # Perl-like match operators for line in open("python_yacc.py"): if line =~ m/def (?P\w+) *(?P$.*$) *:/: print repr($1), repr($args) Andrew Dalke dalke(a)dalkescientific.com

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ANN: PyTables 2.0.3 released
by Francesc Altet March 8, 2008

March 8, 2008

=========================== Announcing PyTables 2.0.3 =========================== PyTables is a library for managing hierarchical datasets and designed to efficiently cope with extremely large amounts of data with support for full 64-bit file addressing. PyTables runs on top of the HDF5 library and NumPy package for achieving maximum throughput and convenient use. This is a maintenance release that mainly fixes a couple of important bugs (bad update of multidimensional columns in table objects, and problems using large indexes in 32-bit platforms), some small enhancements, and most importantly, support for the latest HDF5 1.8.0 library. Also, binaries have been compiled against the latest stable version of HDF5, 1.6.7, released during the past February. Thanks to the broadening PyTables community for all the valuable feedback. In case you want to know more in detail what has changed in this version, have a look at ``RELEASE_NOTES.txt``. Find the HTML version for this document at: http://www.pytables.org/moin/ReleaseNotes/Release_2.0.3 You can download a source package of the version 2.0.3 with generated PDF and HTML docs and binaries for Windows from http://www.pytables.org/download/stable/ For an on-line version of the manual, visit: http://www.pytables.org/docs/manual-2.0.3 Migration Notes for PyTables 1.x users ====================================== If you are a user of PyTables 1.x, probably it is worth for you to look at ``MIGRATING_TO_2.x.txt`` file where you will find directions on how to migrate your existing PyTables 1.x apps to the 2.x versions. You can find an HTML version of this document at http://www.pytables.org/moin/ReleaseNotes/Migrating_To_2.x Resources ========= Go to the PyTables web site for more details: http://www.pytables.org About the HDF5 library: http://hdfgroup.org/HDF5/ About NumPy: http://numpy.scipy.org/ To know more about the company behind the development of PyTables, see: http://www.carabos.com/ Acknowledgments =============== Thanks to many users who provided feature improvements, patches, bug reports, support and suggestions. See the ``THANKS`` file in the distribution package for a (incomplete) list of contributors. Many thanks also to SourceForge who have helped to make and distribute this package! And last, but not least thanks a lot to the HDF5 and NumPy (and numarray!) makers. Without them, PyTables simply would not exist. Share your experience ===================== Let us know of any bugs, suggestions, gripes, kudos, etc. you may have. -- >0,0< Francesc Altet http://www.carabos.com/ V V Cárabos Coop. V. Enjoy Data "-"

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Have Your City Host PyCon 2010!
by Ted Pollari March 8, 2008

March 8, 2008

The PyCon organizers are excited to announce the start of the PyCon 2010 planning process! Even more importantly, we're looking for motivated local groups to spearhead this volunteer-run, community-based conference. In years past, the locale for the next year was arranged about a year in advance. That worked while we were a smaller conference with many venues to choose from. PyCon 2008, to be held soon in the Chicago area, has over 950 registered attendees at this time. That is over one and a half times the number of attendees from just the year before! We're excited to see PyCon grow, but it also means that how we plan PyCon needs to change just a little bit. The first change is a change in the timeline. Starting with PyCon 2010, we're aiming to begin planning two years ahead. To help us do that, PyCon 2009 will also be held in the Chicago area, at the same venue as 2008. The second change is that the bid process will not be as detail-heavy and will not demand as much initial work by local groups. Instead, we're focusing on the heart and soul of PyCon: the community of volunteers -- we're looking to find excited and committed groups who want to be the backbone of PyCon 2010. The details will be worked out in a collaborative process, with local groups working in conjunction the volunteer PyCon organizers and the Python Software Foundation's Conference Committee. Still interested? Curious? Do you want PyCon 2010 hosted in your area? Here's what to do: • Form a group of people interested in helping with the conference planning. • If you're attending PyCon 2008, join us for a kick-off meeting over lunch on Saturday, March 15th. • Make sure at least one person from your group is on the PyCon organizer's list[1] and, as soon as possible, announce your interest in submitting a bid on the list. This process should be viewed as cooperative -- we're here to help and encourage any group that wants to take on hosting PyCon. • Finally, assemble your official bid, referring to the PyCon Bid Guidelines [2] for information and deadlines and submit it to the PyCon organizer's list before the deadline listed in the PyCon Bid Guidelines. Posting your bid to a publicly viewable website wouldn't be a bad idea either... If you have any questions or need any help, feel free to email the organizer's list and ask away! [1] http://mail.python.org/mailman/listinfo/pycon-organizers [2] http://wiki.python.org/moin/PyConPlanning/BidRequirements

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[ANN] Leipzig Python User Group - Meeting, March 11, 2008, 08:00pm
by Mike Müller March 8, 2008

March 8, 2008

=== Leipzig Python User Group === We will meet on Tuesday, March 11 at 8:00 pm at the training center of Python Academy in Leipzig, Germany ( http://www.python-academy.com/center/find.html ). Our main topic will be the Chemnitzer Linux-Tage. Our booth was pretty busy. Quite a few people were really interested in our user group. Many of us were there as presenters and/or helpers at booths of other projects. Therefore, there will be lots things to talk about such as visited presentations, talks at booths, or impressions. Food and soft drinks are provided. Please send a short confirmation mail to info(a)python-academy.de, so we can prepare appropriately. Everybody who uses Python, plans to do so or is interested in learning more about the language is encouraged to participate. While the meeting language will be mainly German, we will provide English translation if needed. Current information about the meetings are at http://www.python-academy.com/user-group . Mike == Leipzig Python User Group === Wir treffen uns am Dienstag, 11.03.2008 um 20:00 Uhr im Schulungszentrum der Python Academy in Leipzig ( http://www.python-academy.de/Schulungszentrum/anfahrt.html ). Wir wollen über die Chemnitzer Linux-Tage sprechen. Unseren Stand war recht gut besucht und wir haben doch Einige für die User Group interessieren können. Viele von uns waren als Vortragende und/oder Mitwirkende an anderen Ständen dort. So gibt es sicher viel über besuchte Vorträge, Gespräche und Eindrücke mitzuteilen. Für das leibliche Wohl wird gesorgt. Eine Anmeldung unter info(a)python-academy.de wäre nett, damit wir genug Essen besorgen können. Willkommen ist jeder, der Interesse an Python hat, die Sprache bereits nutzt oder nutzen möchte. Aktuelle Informationen zu den Treffen sind unter http://www.python-academy.de/User-Group zu finden. Viele Grüße Mike

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ANN: Evoque - managed eval-based templating
by mario ruggier March 7, 2008

March 7, 2008

I'm proud to announce the first public release of the Evoque templating engine for python, version 0.1. Evoque is a full-featured and generic text templating system for python using a simple $-substitution syntax and providing support for flow control, nested templates, overlays, inter-template addressing and invocation, cache management, arbitrary python expressions, advanced python % operator string formatting, restricted execution, automatic cross-site scripting protection, advanced encoding guessing algorithm, and more. Allowing only python expressions and a managed evaluation namespace, Evoque offers a surprising level of simplicity, versatility and performance. Buzz * Full-featured pure python templating engine / 970 SLOC * Automatic input quoting / XSS protection (thanks to Qpy) * Restricted execution * Every text file is a template * Unicode * Simplicity * Speed (+/- same as Mako) * Academic Free License v. 3.0 Template Syntax $ -> escape, replaced with $ ${expr} -> substitution, like %(expr)s ${expr!format} -> substitution, like %(expr)format $if{expr} ... $elif{expr} ... $else ... $fi $for{item in items} ... $else ... $rof $begin{label} ... $end{label} $prefer{raw=False, data=None, quoting=None, filters=None} $evoque{name, src=None, collection=None, raw=False, quoting=None, input_encoding=None, filters=None, **kw} $overlay{name, space="positive", src=None, collection=None, raw=False, quoting=None, input_encoding=None, **kw} $test{**kw} #[ comment ]# "\" at end-of-line consumes the following newline Usage domain = Domain("/home/user/templates") print domain.get_template("snap.html").evoque(vars()) Homepage http://evoque.gizmojo.org/ -- Mario Ruggier

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Wing IDE 3.0.4 released
by Wingware March 7, 2008

March 7, 2008

Hi, We're happy to announce version 3.0.4 of Wing IDE, an advanced development environment for the Python programming language. It is available from: http://wingware.com/downloads Version 3.0.4 is a bug fix release that reduces debugger overhead by about 50% per Python instruction executed, improves breakpoints tracking during edits, expands support for PyGTK auto-completion, and makes 14 other minor improvements. See the change log for details: http://wingware.com/pub/wingide/3.0.4/CHANGELOG.txt It is a free upgrade for all Wing 3.0 users. *About Wing IDE* Wing IDE is an integrated development environment for the Python programming language. It provides powerful debugging, editing, code intelligence, testing, and search capabilities that reduce development and debugging time, cut down on coding errors, and make it easier to understand and navigate Python code. New features added in Wing 3.0 include: * Multi-threaded debugger * Debug value tooltips in editor, debug probe, and interactive shell * Autocompletion and call tips in debug probe and interactive shell * Automatically updating project directories * Testing tool, currently supporting unittest derived tests (*) * OS Commands tool for executing and interacting with external commands (*) * Rewritten indentation analysis and conversion (*) * Introduction of Wing IDE 101, a free edition for beginning programmers * Available as a .deb package for Debian and Ubuntu * Support for Stackless Python * Support for 64 bit Python on Windows and Linux (*)'d items are available in Wing IDE Professional only. 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). *Purchasing & Upgrading* Wing IDE Professional & Wing IDE Personal are commercial software and require a license to run. To upgrade a 2.x license or purchase a new 3.x license: Upgrade: https://wingware.com/store/upgrade Purchase: https://wingware.com/store/purchase Any 2.x license sold after May 2nd 2006 is free to upgrade; others cost 1/2 the normal price to upgrade. -- Stephan Deibel Wingware | Python IDE Advancing Software Development www.wingware.com

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Announcing pytracer
by Eyal Lotem March 6, 2008

March 6, 2008

I was very dissatisfied with the output of existing Python profilers, as they aggregate all calls to the same function (losing context information), and output a big flat list of functions that I find very hard to use in order to profile a program. I believed a better approach is to view the program as a tree of function calls - so I started a small project we call pytracer. pytracer lets you run a program similarly to cProfile (Currently, the performance hit is worse than that of cProfile, but that can probably be improved), while creating a profile.out result file. Then, a Gtk+ based viewer can be used to view the profile.out, exposing an expandable tree of function invocations - each with timing information (real, user, system time). You can find the project at: http://code.google.com/p/pythontracer And the downloads at: http://code.google.com/p/pythontracer/downloads/list Project authors: Eyal Lotem Noam Lewis Simon Yoffe

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Pydev 1.3.14 Released
by Fabio Zadrozny March 6, 2008

March 6, 2008

Hi All, Pydev and Pydev Extensions 1.3.14 have been released Details on Pydev Extensions: http://www.fabioz.com/pydev Details on Pydev: http://pydev.sf.net Details on its development: http://pydev.blogspot.com Release Highlights in Pydev Extensions: ----------------------------------------------------------------- * Local renames: scoping issues. * Local renames: comments/strings only renamed in local scope for local variable. * False positive: undefined variable: a base-class could be flagged as undefined if used in a method scope. * Remote Debugger: easier way to specify path translations between a remote machine and a local machine (constant must be set in org.python.pydev.debug/pysrc/pydevd_file_utils.py -- see comments on module) . Release Highlights in Pydev: ---------------------------------------------- * Outline view: patch by Laurent Dore: better icons for different types of fields methods. * Outline view: patch by Laurent Dore: more filters. * PyLint: working dir is the directory of the analyzed file. * Project explorer: fixed bug on integration with Dynamic Web Project. * Extract method: fixed bug when trying to refactor structure: a = b = xxx. * Generate constructor using fields: working for classes that derive from builtin classes. * Override methods: working for classes that derive from builtin classes. * Debugger can use psyco for speedups: see http://pydev.blogspot.com/2008/02/pydev-debugger-and-psyco-speedups.html. * Debugger: shows parent frame when stepping in a return event. * Go to previous/next method: (Ctrl+Shift+Up/Down): does not rely on having a correct parse anymore. * Auto-formatting: No space after comma if next char is new line. * Code Completion: Handling completions from attribute access in classes (accessed from outside of the class). * Auto-indent: Better handling when indenting to next tab position within the code. * Caches: Some places were recreating the cache used during a completion request instead of using the available one (which could have a memory impact on some situations). What is PyDev? --------------------------- PyDev is a plugin that enables users to use Eclipse for Python and Jython development -- making Eclipse a first class Python IDE -- It comes with many goodies such as code completion, syntax highlighting, syntax analysis, refactor, debug and many others. Cheers, -- Fabio Zadrozny ------------------------------------------------------ Software Developer ESSS - Engineering Simulation and Scientific Software http://www.esss.com.br Pydev Extensions http://www.fabioz.com/pydev Pydev - Python Development Enviroment for Eclipse http://pydev.sf.net http://pydev.blogspot.com

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ANN: GOZERBOT 0.8 released
by Bart Thate March 4, 2008

March 4, 2008

so 0.8 is there and can be downloaded from http://gozerbot.org new features: * third party addons for plugins. (needs setup.py to work) * reboots without disconnects (irc only for now) * ipv6 udp support * queues used all over the place to reduce thread usage * normal irc log format is now supported (simplelog plugin) * irc can now be disabled for jabber only usage * owneruserhost is now a list so multiple userhosts can be used * jabber reconnect code is improved * rss error reporting is improved * udp code is improved especially in the jabber case * lots of other bug fixes problems with this release can be reported on http://dev.gozerbot.org or contact us on #dunkbots on IRCnet or freenode. email is at bth...(a)gmail.com the gozerbot development team ABOUT GOZERBOT: Requirements * a shell * python 2.4 or higher * if you want to remotely install plugins: the gnupg module * if you want mysql support: the py-MySQLdb module * if you want jabber support: the xmpppy module Why gozerbot? * provide both IRC and Jabber support * user management by userhost .. bot will not respond if it doesn't know you (see /docs/USER/) * fleet .. use more than one bot in a program (list of bots) (see / docs/FLEET/) * use the bot through dcc chat * fetch rss feeds (see /docs/RSS/) * remember items * relaying between bots (see /docs/RELAY/) * program your own plugins (see /docs/PROGRAMPLUGIN/) * run the builtin webserver (see /docs/WEBSERVER/) * query other bots webserver via irc (see /docs/COLLECTIVE/) * serve as a udp <-> irc or jabber gateway (see /docs/UDP) * mysql and sqlite support

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