Mailman 3 February 2008 - Python-announce-list

ANN: SPE 0.8.4.c Python IDE editor
by Stani 14 Feb '08

14 Feb '08

As SPE was being developed for more than a year in subversion, I thought it is time for a release again. This is a major bugfix release. It ships updated plugins and also some new features, especially if you use Linux or Blender, for which Witold did a great job. I would also like to thank in particular the webhost Zindep.com for their support and patience. New features: * new versions of WinPdb debugger, PyChecker, wxGlade & XRCed gui designer * clear output pane * support for wxPython 2.8 * linux support for nautilus, gnome-terminal, konqueror, konsole, thunar * improved blender support up to 2.45 (by Witold) Fixes: * sidebar sash more tolerant * show path in title (linux) * run with filename with spaces * nicer debug dialog box * kill process fix * notebook * insert signature * numpad keys (by isolationism) * find tab with nonexisting files * add environment to SPE.py (linux) * better warning for documentation for unsaved files * better handling of new empty files * many more... Installing on Debian(unstable) and Ubuntu Hardy: sudo apt-get install spe Installing on all other platforms: 1. Download either the zip or tar ball from here 2. Unzip it where you want and do NOT rename the _spe folder 3. Start SPE from within the _spe folder with "python SPE.py" About SPE: SPE is a python IDE with auto-indentation, auto completion, call tips, syntax coloring, uml viewer, syntax highlighting, class explorer, source index, auto todo list, sticky notes, integrated pycrust shell, python file browser, recent file browser, drag&drop, context help, ... Special is its blender support with a blender 3d object browser and its ability to run interactively inside blender. Spe integrates with XRCed (gui designer) and ships with wxGlade (gui designer), PyChecker (source code doctor), Kiki (regular expression console) and WinPdb (remote, multi-threaded debugger). The development of SPE is driven by its donations. Anyone who donates can ask for an nice pdf version of the manual without ads (74 pages). For more info go to http://pythonide.stani.be

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ANN: Leo 4.4.7 beta 1 released
by Edward K Ream 13 Feb '08

13 Feb '08

Leo 4.4.7 beta 1 is available at: http://sourceforge.net/project/showfiles.php?group_id=3458&package_id=29106 This version features the ipython plugin that provides a two-way bridge between Leo and IPython. See http://webpages.charter.net/edreamleo/IPythonBridge.html Leo's main discussion is now at: http://groups.google.com/group/leo-editor Leo is a text editor, data organizer, project manager and much more. See: http://webpages.charter.net/edreamleo/intro.html The highlights of Leo 4.4.7: ---------------------------- - The ipython plugin creates a simple, powerful, effective bridge between IPython and Leo. See http://webpages.charter.net/edreamleo/IPythonBridge.html - Improved handling of unicode encodings in @auto files. - All import commands now support @path directives in ancestor nodes. - Fixed several minor bugs. Links: ------ Leo: http://webpages.charter.net/edreamleo/front.html Forum: http://groups.google.com/group/leo-editor 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)yahoo.com Leo: http://webpages.charter.net/edreamleo/front.html --------------------------------------------------------------------

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PyCon: deadline for hotel reservations and early-bird registration coming soon!
by David Goodger 12 Feb '08

12 Feb '08

If you haven't registered for PyCon yet, now is the time! The early-bird registration deadline is February 20, one week away. After that, the price for registration will be going up. http://us.pycon.org/2008/registration/ The deadline for hotel reservations at the conference rate is also February 20. Act now, because the regular rate is considerably higher! http://us.pycon.org/2008/registration/hotel/ A reminder to tutorial and talk speakers: you are responsible for your own registration and hotel reservations. So don't delay! PyCon 2008: March 14-16, 2008 (& tutorials March 13, & sprints March 17-20) David Goodger PyCon 2008 Chair

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January PSF Board meeting minutes available
by David Goodger 12 Feb '08

12 Feb '08

Minutes of a Regular Meeting of the Board of Directors of the Python Software Foundation, January 14, 2008: http://www.python.org/psf/records/board/minutes/2008-01-14/ -- David Goodger <http://python.net/~goodger>

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web2py 1.22 available
by mdipierro 12 Feb '08

12 Feb '08

Hi everybody, web2py 1.22 (formerly Gluon) is out http://www.web2py.com or http://mdp.cti.depaul.edu You can find free web2py apps and examples at http://mdp.cti.depaul.edu/appliances If you want to try it, web2py requires no installation, no configuration, no shell scripting, has no dependencies (even python is in the box), has a MVC design very similar to Django/Pylons/Rails, and let you do everything through the provided web interface, including development, testing, debugging and db administration. Version 1.22 includes support for routes, xmlrpc, rss/atom feeds, pyamf, rest and native upload/download streaming capabilities for very large files. Complete interactive examples are here: http://mdp.cti.depaul.edu/examples/default/examples Here is a short video: http://www.youtube.com/watch?v=VBjja6N6IYk and here is a longer one http://www.vimeo.com/428474 The source code in on http://code.google.com/p/web2py and the google group is http://groups.google.com/group/web2py Massimo

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Sybase module 0.39pre1 released
by Sébastien Sablé 12 Feb '08

12 Feb '08

WHAT IS IT: The Sybase module provides a Python interface to the Sybase relational database system. It supports all of the Python Database API, version 2.0 with extensions. ** This version is a pre-release not intended for production use ** The module is available here: http://downloads.sourceforge.net/python-sybase/python-sybase-0.39pre1.tar.gz The module home page is here: http://python-sybase.sourceforge.net/ MAJOR CHANGES SINCE 0.38: * Added type mapping as proposed in http://www.uniqsys.com/~carsten/typemap.html by Carsten Haese * Handle engineer notation of numbers in numeric * Added support for CS_DATE_TYPE * Added support for python Decimal objects in databuf * Possibility to use ct_cursor for some requests * Refactoring - merged Fetchers, CTCursor and CmdCursor in Cursor * Refactored _cancel_cmd * Added a prepare method to Cursor * Additional 'locale' argument to connect and Connection to set the locale of the connection thanks to patch by Harri Pasanen * Better compliance with DBAPI: returns None in nextset when no more set * Added conversion from string to int when assigning to a CS_INT_TYPE DataBuf BUGS CORRECTED SINCE 0.38: * Corrected documentation about CS_CONTEXT Objects thanks to bug report by Derek Harland (close tracker 1748109) * Corrected bug in close() if connection killed from outside thanks to patch by Derek Harland (close tracker 1746220) * Corrected bug if inherit from Sybase.Connection thanks to patch by Derek Harland (close tracker 1719789) * Optimization in fetchall - using fetchmany instead of fetchone to avoid locking time penalty, thanks to patch by Derek Harland (close tracker 1746908) * Corrections to compile with bcp-support against freetds thanks to patch by Klaus-Martin Hansche (close tracker 1724088) * Corrected documentation to compile with FreeTDS and Threads thanks to Derek Harland (close tracker 1709043) * Corrected bug in databuf_alloc: Sybase reports the wrong maxlength for numeric type - verified with Sybase 12.5 - thanks to patch provided by Phil Porter * Better detection of Sybase libraries * the C API to datetime only exists since python 2.4 - disable datetime with previous versions * Corrected python long handling (using CS_NUMERIC instead of CS_LONG which is unspecified) * Corrected various compilation warnings (some linked to python 2.5) The full ChangeLog is here: https://python-sybase.svn.sourceforge.net/svnroot/python-sybase/tags/r0_39p…

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ANN: PyAMF 0.1
by Thijs Triemstra | Collab 11 Feb '08

11 Feb '08

We released PyAMF 0.1, a lightweight library that allows Flash and Python applications to communicate via Adobe's ActionScript Message Format. AMF3 and RemoteObject are supported in all the implemented Remoting gateways, currently supported for Django, Twisted and WSGI. A summary of new features features and improvements in this release: - TwistedGateway now expects deferred from service functions - Added expose_request to TwistedGateway - New error handling api useful for registering custom exception classes - When a client receives a remoting error, an exception is generated - expose_request per service control vastly improved - Improved authentication per service control - uuid is no longer installed when using Python 2.5 or newer - The inheritance tree was not consulted when encoding attributes - TypedObjects didn't work with old style classes - ErrorFault now prints details Check out the download page [1], installation instructions [2] and examples [3]. Questions? First stop is the mailing list [4], but we also hang out on [5]. Cheers, - the PyAMF team [1] http://pyamf.org/wiki/Download [2] http://pyamf.org/wiki/Install [3] http://pyamf.org/wiki/Examples [4] http://pyamf.org/wiki/MailingList [5] irc://freenode.net/pyamf

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Python-URL! - weekly Python news and links (Feb 11)
by Gabriel Genellina 11 Feb '08

11 Feb '08

QOTW: "And don't EVER make the mistake that you can design something better than what you get from ruthless massively parallel trial-and-error with a feedback cycle. That's giving your intelligence _much_ too much credit." - Linus Torvalds http://groups.google.com/group/fa.linux.kernel/msg/52f04d4ab1121c9b "Bare excepts are BAD ..." - Sidnei da Silva Defining properties per instance (not class): http://groups.google.com/group/comp.lang.python/browse_thread/thread/bfc093… IronPython vs. CPython comparison: http://groups.google.com/group/comp.lang.python/browse_thread/thread/339a1c… MultiSingleton (many instances but unique for a given key): http://groups.google.com/group/comp.lang.python/browse_thread/thread/f9e507… Turning ZeroDivisionError off: http://groups.google.com/group/comp.lang.python/browse_thread/thread/3fd33c… A common confusion between isinstance/issubclass and the type/object hierarchy: http://groups.google.com/group/comp.lang.python/browse_thread/thread/6788df… Why compiling Python to native code is hard (a long thread, with detours through Star Wars, lost civilizations, the speed of light and the luminiferous aether...): http://groups.google.com/group/comp.lang.python/browse_thread/thread/8c7c35… Use Python to demonstrate sorting algorithms: http://groups.google.com/group/comp.lang.python/browse_thread/thread/103e0c… Loading and using a .NET DLL: http://groups.google.com/group/comp.lang.python/browse_thread/thread/aec25d… ======================================================================== 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. 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/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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[ANN] Release of the second PyTables video
by Ivan Vilata i Balaguer 11 Feb '08

11 Feb '08

====================================== Release of the second PyTables video ====================================== Carabos [1]_ is happy to announce the second of a series of videos dedicated to introducing the main features of PyTables to the public in a visual and easy to grasp manner: http://www.carabos.com/videos/pytables-2-tables PyTables [2]_ is a Free/Open Source package designed to handle massive amounts of data in a simple, but highly efficient way, using the HDF5 file format and NumPy data containers. .. [1] http://www.carabos.com/ .. [2] http://www.pytables.org/ Our second video explains how to work with tables, PyTables' main data container. It shows how to: * describe the structure of a table * create a table * iterate over a table * access tables by blocks * handle big tables * query a table The video is only 15 minutes long, so you can watch it while you enjoy a nice cup of coffee. If you are used to SQL databases, you may also be interested in the introduction to tables at http://www.pytables.org/moin/HintsForSQLUsers You can also see more on table queries in the latest video about ViTables (our PyTables GUI) at http://www.carabos.com/videos/vitables-2-queries More videos about PyTables will be published in the near future, so stay tuned on www.pytables.org for further announcements. We would like to hear your opinion on the video so we can do it better the next time. We are also open to suggestions for the topics of future videos. You can contact us at pytables(a)carabos.com. Best regards, :: Ivan Vilata i Balaguer >qo< http://www.carabos.com/ Cárabos Coop. V. V V Enjoy Data ""

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ANN: pyparsing 1.4.11 released
by Paul McGuire 10 Feb '08

10 Feb '08

I have just uploaded version 1.4.11 of pyparsing to SourceForge. It has been a pretty full 2 months since the last release, with contributions from new users, old users, and also some help from the Google Highly-Open Participation contest. I think there are some very interesting new features in this release. Please check it out! (Please note - if you download and install the Windows binary, this will NOT include the HTML doc or examples directory. TO get these, you will need to download the docs or one of the source distributions.) The pyparsing wiki is at http://pyparsing.wikispaces.com. Here are the notes for 1.4.11: Version 1.4.11 - February 10, 2008 ---------------------------------- - With help from Robert A. Clark, this version of pyparsing is compatible with Python 3.0a3. Thanks for the help, Robert! - Added WordStart and WordEnd positional classes, to support expressions that must occur at the start or end of a word. Proposed by piranha on the pyparsing wiki, good idea! - Added matchOnlyAtCol helper parser action, to simplify parsing log or data files that have optional fields that are column dependent. Inspired by a discussion thread with hubritic on comp.lang.python. - Added withAttribute.ANY_VALUE as a match-all value when using withAttribute. Used to ensure that an attribute is present, without having to match on the actual attribute value. - Added get() method to ParseResults, similar to dict.get(). Suggested by new pyparsing user, Alejandro Dubrovksy, thanks! - Added '==' short-cut to see if a given string matches a pyparsing expression. For instance, you can now write: integer = Word(nums) if "123" == integer: # do something print [ x for x in "123 234 asld".split() if x==integer ] # prints ['123', '234'] - Simplified the use of nestedExpr when using an expression for the opening or closing delimiters. Now the content expression will not have to explicitly negate closing delimiters. Found while working with dfinnie on GHOP Task #277, thanks! - Fixed bug when defining ignorable expressions that are later enclosed in a wrapper expression (such as ZeroOrMore, OneOrMore, etc.) - found while working with Prabhu Gurumurthy, thanks Prahbu! - Fixed bug in withAttribute in which keys were automatically converted to lowercase, making it impossible to match XML attributes with uppercase characters in them. Using with- Attribute requires that you reference attributes in all lowercase if parsing HTML, and in correct case when parsing XML. - Changed '<<' operator on Forward to return None, since this is really used as a pseudo-assignment operator, not as a left-shift operator. By returning None, it is easier to catch faulty statements such as a << b | c, where precedence of operations causes the '|' operation to be performed *after* inserting b into a, so no alternation is actually implemented. The correct form is a << (b | c). With this change, an error will be reported instead of silently clipping the alternative term. (Note: this may break some existing code, but if it does, the code had a silent bug in it anyway.) Proposed by wcbarksdale on the pyparsing wiki, thanks! - Several unit tests were added to pyparsing's regression suite, courtesy of the Google Highly-Open Participation Contest. Thanks to all who administered and took part in this event! ======================================== Pyparsing is a pure-Python class library for quickly developing recursive-descent parsers. Parser grammars are assembled directly in the calling Python code, using classes such as Literal, Word, OneOrMore, Optional, etc., combined with operators '+', '|', and '^' for And, MatchFirst, and Or. No separate code-generation or external files are required. Pyparsing can be used in many cases in place of regular expressions, with shorter learning curve and greater readability and maintainability. Pyparsing comes with a number of parsing examples, including: - "Hello, World!" (English, Korean, Greek, and Spanish) - chemical formulas - configuration file parser - web page URL extractor - 5-function arithmetic expression parser - subset of CORBA IDL - chess portable game notation - simple SQL parser - search query parser - EBNF parser/compiler - Python value string parser (lists, dicts, tuples, with nesting) (safe alternative to eval) - HTML tag stripper - S-expression parser - macro substitution preprocessor

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