Mailman 3 May 2006 - Python-announce-list

pyIDL-0.2
by Michael McKerns 09 Jun '06

09 Jun '06

updated Python bindings for IDL http://www.its.caltech.edu/~mmckerns/software.html # Version 0.2: 07/19/06 support for 64-bit platforms shortcuts for put, get, eval access IDL functions/procedures from python --- Mike McKerns California Institute of Technology http://www.its.caltech.edu/~mmckerns

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ANN: Vancouver Python Workshop - keynote speakers announced
by Brian Quinlan 06 Jun '06

06 Jun '06

What's New? =========== We are pleased to announce the keynote speakers for this year's Vancouver Python Workshop: Guido van Rossum and Jim Hugunin. Guido van Rossum (Google) is the inventor of Python and has managed its growth and development for more than a decade. Guido was awarded the Free Software Foundation Award in 2002 and Dr.Dobb's 1999 Excellence in Programming Award. Today Guido works at Google, spending half of his time on Python. Jim Hugunin (Microsoft) is the creator of IronPython, Jython and Numeric Python. IronPython is Python for the .NET platform and integrates Python into Microsoft's .NET strategy. Jython is Python for the Java platform and was the second production quality implementation of Python. Numeric Python adapts Python to the needs of number crunching applications. Today, Jim works at Microsoft where he helps them adapt the .NET runtime to meet the needs of dynamic languages like Python. About the Vancouver Python Workshop =================================== The conference will begin with keynote addresses on August 4st. Further talks (and tutorials for beginners) will take place on August 5th and 6th. The Vancouver Python Workshop is a community organized conference designed for both the beginner and for the experienced Python programmer with: * tutorials for beginning programmers * advanced lectures for Python experts * case studies of Python in action * after-hours social events * informative keynote speakers * tracks on multimedia, Web development, education and more More information see: http://www.vanpyz.org/conference/ or contact Brian Quinlan at: brian(a)sweetapp.com Vancouver ========= In addition to the opportunity to learn and socialize with fellow Pythonistas, the Vancouver Python Workshop also gives visitors the opportunity to visit one of the most extraordinary cities in the world (1). For more information about traveling to Vancouver, see: http://www.vanpyz.org/conference/vancouver.html http://www.tourismvancouver.com http://en.wikipedia.org/wiki/Vancouver Important dates =============== Talk proposals accepted: May 15th to June 15th Early registration (discounted): May 22nd to June 30th Normal registration: from July 1st Keynotes: August 4th Conference and tutorial dates: August 5th and 6th (1) http://news.bbc.co.uk/2/hi/business/2299119.stm Cheers, Brian

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ANN: devtools 0.9.0
by Alexandre Fayolle 31 May '06

31 May '06

I'm pleased to announce the 0.9.0 release of devtools. What's new ? ------------ 2006-05-31 -- 0.9.0 * buildpackage: offers to test the packages with piuparts * preparedistrib: offers to copy the COPYING file from a set of known licenses * buildpackage: fixed missing DEBUILDER environment variable bug * dos2unix: removal (unused, buggy, conflicts with debian package tofrodos) * debianize: fix the way to handle subpackage's __init__.py file (there is now a subpackage_master boolean property in the __pkginfo__.py which tells if a package is handling the __init__.py file, so now only one subpackage should set this to True and the others should depends on this package) * debianize: fix Uploader to Uploaders in control * pkginfo: fix debian handler detection * makedistrib: don't ask to tag package if an error occurs * vcslib: added mercurial support What is devtools ? ------------------------ Set of tools which aims to help the developpement process, including : * standard for zope and python packages * tools to check and build source and/or debian packages * python coverage tool * cvs/svn utilities Home page --------- http://www.logilab.org/projects/devtools Download -------- ftp://ftp.logilab.org/pub/devtools Mailing list ------------ mailto://python-projects@lists.logilab.org LOGILAB provides services in the fields of XML techniques and advanced computing (implementation of intelligent agents, knowledge management, natural language processing, statistical analysis, data mining, etc.), and also trainings on Python, XML, UML, Object Oriented design, design patterns use and other cutting edge topics. To know more about Logilab, visit http://www.logilab.com/. Logilab is also a strong supporter of the Free Software movement, and an active member of the Python and Debian communities. Logilab's open source projects can be found on http://www.logilab.org/. -- Alexandre Fayolle LOGILAB, Paris (France) Formations Python, Zope, Plone, Debian: http://www.logilab.fr/formations Développement logiciel sur mesure: http://www.logilab.fr/services Informatique scientifique: http://www.logilab.fr/science

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Open Source Developers' Conference 2006 - Call for papers
by Richard Jones 30 May '06

30 May '06

http://www.osdc.com.au/papers/cfp06.html The Open Source Developers' Conference is an Australian conference designed for developers, by developers. It covers numerous programming languages across a range of operating systems. We're seeking papers on Open Source languages, technologies, projects and tools as well as topics of interest to Open Source developers. The conference will be held in Melbourne, Victoria (Monash University's Caulfield Campus) from the 6th to the 8th of December, 2006. Last year's conference had about 160 people and around 60 presentations on a range of topics - see http://osdc2005.cgpublisher.com/proposals/ for a list. This list might also be useful if you're looking for ideas on what sort of thing would be appropriate. If you have any questions, or have never submitted a paper proposal before, please read our FAQ page at http://www.osdc.com.au/faq/index.html If you don't find an answer there, please contact richard(a)osdc.com.au To submit a proposal, follow the instructions at http://www.osdc.com.au/papers/cfp06.html This year we're also going to run a day of tutorials. See the CFP for more information. The deadline for proposals is 12th July 2006. Hope to see you there! The OSDC 2006 committee.

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Dr. Dobb's Python-URL! - weekly Python news and links (May 30)
by Cameron Laird 30 May '06

30 May '06

QOTW: "Making a user class work anywhere you can put a mapping in Perl is deep magic, but easy in Python. Creating types that act like files and can be used wherever a file is used is SOP in Python; I'm not even sure it's possible in Perl (probably is, but it's again deep magic)." - Mike Meyer "... I don't bother with classes unless I'm going to end up with multiple instances (or I'm pushed into a corner ..." - Dan Sommers Over TWO DOZEN Python-based projects have been accepted for the 2006 Summer of Code: http://wiki.python.org/moin/SummerOfCode While waiting for more polished summaries from the Iceland Sprint, admire a few of the incidental photographs: http://www.flickr.com/photos/tags/pyneedforspeed/ http://www.flickr.com/photos/30842681@N00/ John Machin and others stride throught the periods of sequences: http://groups.google.com/group/comp.lang.python/msg/74c81885d7dd4b0e http://groups.google.com/group/comp.lang.python/msg/b9d10df764bdd3df Under-invested desiderata: documentation, regression tests, marketing, serenity, and, as Steve Holden recently discovered, *benchmarks*: http://groups.google.com/group/comp.lang.python/msg/903d5ba9745bad5b Fuzzyman advertises yet another convenience of Movable Python: http://groups.google.com/group/comp.lang.python/msg/35baaa3af891c12f Gonzalo Monzon and others discuss the circumstances of Pyrex applicability: http://groups.google.com/group/comp.lang.python/browse_thread/thread/b051c5… Zlatko Matic, Gerard Flanagan, and others work out C# invocations for launching an out-of-process Python application: http://groups.google.com/group/comp.lang.python/browse_thread/thread/b051c5… Computing stuff is categorically hard because of the combinatorics and scales which arise naturally. Grant Edwards details a true-life example, which happened to be about numeric interpolation, of how problems ("debugging") are dramatically superlinear: http://groups.google.com/group/comp.lang.python/msg/9a78b5d34db196b4 ======================================================================== 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, several pages index much of the universe of Pybloggers. http://lowlife.jp/cgi-bin/moin.cgi/PythonProgrammersWeblog http://www.planetpython.org/ http://mechanicalcat.net/pyblagg.html 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, Tim Lesher, and Tony Meyer continue the marvelous tradition early borne by Andrew Kuchling, Michael Hudson and Brett Cannon 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 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!". -- The Python-URL! Team-- Dr. Dobb's Journal (http://www.ddj.com) is pleased to participate in and sponsor the "Python-URL!" project.

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ANN: PQRC - Python Quick Reference Card - v 0.55
by Laurent Pointal 30 May '06

30 May '06

The Python Quick Reference Card (PQRC) aims to provide a printable quick reference documentation for the Python language and some of its main standard libraries (currently for Python 2.4). PQRC tries to group informations about same/similar subject to avoid searching in multiple places. It is published under a Creative Common [by nc sa] license. It is still a work in progress, but currently usable, you can get it at: http://www.limsi.fr/Individu/pointal/python/pqrc/ And I'll maintain a fixed URL at http://laurent.pointal.org/python/pqrc/

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Last chance to speak at EuroPython!
by Michael Hudson 29 May '06

29 May '06

2006-05-29 The deadline for abstract submission for EuroPython 2006 is just two days away. If you've been planning to submit a talk but haven't gotten around to it yet, now's the time to do it. On the other hand, if you haven't considered speaking yet, maybe you should think about it. The audience at EuroPython is well-informed, interested and friendly -- there's no finer place to talk about your research, experience or project. In either case, get yourself to: http://indico.cern.ch/abstractSubmission.py?confId=44 before midnight (CEST) on the 31st of May. For more information, see the original announcement: http://www.europython.org/sections/tracks_and_talks/announcements/call-for-… or the EuroPython 2006 website at http://www.europython.org/. Cheers, mwh (EuroPython 2006 Program Chair) -- Academic politics is the most vicious and bitter form of politics, because the stakes are so low. -- Wallace Sayre

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ANN: pycairo snapshot release 1.1.6 now available
by Steven Chaplin 29 May '06

29 May '06

Pycairo is a set of Python bindings for the multi-platform 2D graphics library cairo. http://cairographics.org http://cairographics.org/pycairo A new pycairo snapshot release 1.1.6 is now available from: http://cairographics.org/snapshots/pycairo-1.1.6.tar.gz http://cairographics.org/snapshots/pycairo-1.1.6.tar.gz.md5 39b3d60774c90f2d431f41faf28ec27f pycairo-1.1.6.tar.gz Overview of changes from pycairo 1.0.2 to pycairo 1.1.6 ======================================================= General changes: Pycairo has been updated to work with cairo 1.1.6. Note that cairo 1.1.6 is a development version and not a fully stable release, the stable release 1.2.0 is due soon. New objects: SVGSurface New methods: Context.get_group_target Context.new_sub_path Context.pop_group Context.pop_group_to_source Context.push_group Context.push_group_with_content FontOptions.get_antialias FontOptions.get_hint_metrics FontOptions.get_hint_style FontOptions.get_subpixel_order FontOptions.set_antialias FontOptions.set_hint_metrics FontOptions.set_hint_style FontOptions.set_subpixel_order PDFSurface.set_size PSSurface.dsc_begin_page_setup PSSurface.dsc_begin_setup PSSurface.dsc_comment PSSurface.set_size ScaledFont.get_font_face ScaledFont.text_extents Surface.get_device_offset XlibSurface.get_depth Updated methods: PDFSurface()/PSSurface() - can now write to file-like objects (like StringIO). surface.write_to_png() and ImageSurface.create_from_png() can now write to file-like objects (like StringIO). select_font_face, show_text, text_extents and text_path now accept unicode objects. Other changes: misc bug fixes. New examples: examples/cairo_snippets/snippets_svg.py examples/cairo_snippets/snippets/ellipse.py examples/cairo_snippets/snippets/group.py examples/svg/svgconvert.py Send instant messages to your online friends http://au.messenger.yahoo.com

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ANN: buzhug, a new pure-Python database engine
by Pierre Quentel 27 May '06

27 May '06

buzhug is a new, fast, pure-Python database engine, using a pythonic syntax (no SQL). It is published at http://buzhug.sourceforge.net under the BSD licence Here is an overview of the interface : from buzhug import Base my_cds = Base('my_cds') my_cds.create(('artist',str),('title',str),('issued',int)) my_cds.insert(artist='Kaiser Chiefs',title='Employment',issued=2005) my_cds.insert(artist='Rialto',title='Night On Earth',issued=2002) my_cds.insert('Oasis','Definitely Maybe',1994) cd = my_cds.select(artist="Oasis")[0] print cd.title > "Definitely Maybe" new_cds = [ cd for cd in my_cds if cd.issued > 2000 ] Pretty straightforward, isn't it ? As you can see on the last line, the database is an iterator, yielding objects which have attributes of the same name as the fields in the base songs = Base('songs') songs.create(('title',str),('cd',my_cds)) cd = my_cds.select(title="Definitely Maybe")[0] song_id = songs.insert('Supersonic',cd) song = songs[song_id] # lookup by record id print song.cd.artist > "Oasis" A field can be a reference to another database. When you have finished entering all the songs you can get the track listing by [ song.title for song in songs if song.cd.title == "Definitely Maybe" ] A complete documentation, with a tutorial, is available on the web site The implementation has been designed to make all operations, especially selection, as fast as possible, while processing the data on disk (it is not an in-memory database). On a limited set of tests I found that it is much faster than gadfly and KirbyBase, and only less than 3 times slower than SQLite This is still a beta version, so I need feedback on the syntax, performance, bug reports etc. Please send any comment or question to the Google group : http://groups.google.com/group/buzhug?lnk=li Regards, Pierre

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Twisted 2.4.0 released
by Christopher Armstrong 27 May '06

27 May '06

Twisted is an event-based framework for internet applications which works on Python 2.3.x and 2.4.x. The 2.4.0 release includes features and fixes for the various parts of Twisted, including Internet, Conch, Web, Mail, Names, and more. Hit http://twistedmatrix.com/trac/wiki/TwistedProject to see what's new and to get the latest downloads, including tarballs and Windows installers. For general information about Twisted, see the web site at http://twistedmatrix.com/. Thanks to Jean-Paul Calderone for helping a lot to get this release out the door. -- Christopher Armstrong International Man of Twistery http://radix.twistedmatrix.com/ http://twistedmatrix.com/ http://canonical.com/

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