Mailman 3 August 2006 - Python-announce-list

Early bird registration extended till end of August - Leipzig Python Workshop
by Mike Müller 20 Aug '06

20 Aug '06

The early bird registration for the Leipzig Python workshop has been extended until August 31. There was little time between the late posting of the workshop program and the early bird deadline. In addition, we are in the middle of the vacation season, so some people might not been able to read the posting in time. Therefore, we like to give everybody the chance to profit from early bird rate again. === Workshop "Python im deutschsprachigen Raum" === Der letzte Termin für den Frühbucherabatt wurde auf den 31.08.2006 verschoben. Wegen der späteren Veröffentlichung des Workshop-Programms war nur wenig Zeit sich auf Grund des Programms für die Teilnahme zu entscheiden und den günstigeren Teilnahmebeitrag in Anspruch zu nehmen. Hinzu kommt, dass wir mitten in der Urlaubssaison sind und deshalb manch einer die Ankündigung erst später liest. Wir möchten deshalb allen nochmal die Möglichkeit geben den Frühbucherabatt zu nutzen. === Workshop-Details === Am 8. September 2006 findet in Leipzig der Workshop "Python im deutschsprachigen Raum" statt. Der Workshop ist als Ergänzung zu den internationalen und europäischen Python-Zusammenkünften gedacht. Die Themenpalette der Vorträge ist sehr weit gefasst und soll alles einschließen, was mit Python im deutschsprachigen Raum zu tun hat. Eine ausführliche Beschreibung der Ziele des Workshops, der Workshop-Themen sowie Details zu Organisation und Anmeldung sind unter http://www.python-academy.de/workshop nachzulesen. === Wichtige Termine === 31.08.2006 Letzter Termin für Frühbucherrabatt 08.09.2006 Workshop 15.09.2006 Letzter Termin für die Einreichung der publikationsfähigen Beiträge Dezember 2006 Veröffentlichung des Tagungsbandes === Bitte weitersagen === Der Workshop soll auch Leute ansprechen, die bisher nicht mit Python arbeiten. Wer mithelfen möchte den Workshop bekannt zu machen, kann einen Link auf http://www.python-academy.de/workshop setzen. Auch außerhalb des Internets kann der Workshop durch den Flyer http://www.python-academy.de/download/programm.pdf bekannt gemacht werden. Einfach doppelseitig ausdrucken oder kopieren und ein paar Exemplare am Schwarzen Brett von Universitäten, Firmen, Organisationen usw. aushängen. Wir freuen uns auf eine rege Teilnahme, Mike Müller Stefan Schwarzer

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[ANN] rpncalc-2.4 RPN Calculator for Python
by Raymond L. Buvel 19 Aug '06

19 Aug '06

The rpncalc package adds an interactive Reverse Polish Notation (RPN) interpreter to Python. This interpreter allows the use of Python as an RPN calculator. You can easily switch between the RPN interpreter and the standard Python interpreter. Home page: http://calcrpnpy.sourceforge.net/ Changes in 2.4 * Update the included clnum package. * Added combinatorial functions.

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[ANN] ratfun-2.3 Polynomials and Rational Functions
by Raymond L. Buvel 19 Aug '06

19 Aug '06

The ratfun module provides classes for defining polynomial and rational function (ratio of two polynomials) objects. These objects can be used in arithmetic expressions and evaluated at a particular point. Home page: http://calcrpnpy.sourceforge.net/ratfun.html Note: If you are using rpncalc-1.2 or later, this module is already included. This release is for folks who don't want rpncalc. Changes in 2.3 * Update the included clnum package. * Improved the formatting of the string representation of a polynomial. * Polynomial and rational function evaluation now works with array inputs.

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[ANN] clnum-1.3 Class Library For Numbers Python Binding
by Raymond L. Buvel 19 Aug '06

19 Aug '06

The clnum package adds rational numbers and arbitrary precision floating point numbers in real and complex form to Python. Also provides arbitrary precision floating point replacements for the functions in the math and cmath standard library modules. Home page: http://calcrpnpy.sourceforge.net/clnum.html Changes in 1.3 * Added combinatorial functions. * Improved the performance of converting very large Python longs.

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Zope 3.3.0 beta 2 released!
by Philipp von Weitershausen 19 Aug '06

19 Aug '06

The Zope 3 development team is proud to announce Zope 3.3.0 beta 2. Zope 3 is the next major Zope release and has been written from scratch based on the latest software design patterns and the experiences of Zope 2. Cleanup of the Zope 3 packages has continued to ensure a flexible and scalable platform. We continued the work on making the transition from Zope 2 to Zope 3 by making Zope 2.10 use even more of the Zope 3 packages. But we're not there yet. **You can't run Zope 2 applications in Zope 3.** Downloads --------- http://zope.org/Products/Zope3 Installation instructions for both Windows and Un*x/Linux are now available in the top level README.txt file of the distribution. The binary installer is recommended for Windows. Zope 3.3 requires Python 2.4.1 to run. You must also have zlib installed on your system. Most Important Changes Since Zope 3.2 ------------------------------------- - Provided a new component registry API that allows multiple component registries to be combined more flexibly than before. See 'zope.component.interfaces.IComponentRegistry' for more information. - Greatly simplified local-component registration. See 'zope.component.interfaces.IComponentRegistry' for more information. - Moved many packages out of zope.app to make them easier to use outside of Zope. - Change the session credentials plugin to make it configurable in which fields it looks for the credentials. - Added a new API for collating text. You can now adapt a locale to 'zope.i18n.interfaces.ILocales.ICollator'. You can then use that to sort strings, such as menu entries, in a locale-specific fashion. - A new 'zope.annotation.factory' helper function that makes it easier to create annotations. Also added a README in 'zope.annotation' which explains how to use it. - Added a more complete set of widgets for fields that use iterable sources. These widgets now mirror the set provided by vocabulary-based fields. - Added a cleaner and more robust API to testbrowser for setting file-upload data. - Deprecated several ZCML directives: * factory * vocabulary * content (as an alias to the class directive) * modulealias * renderer:renderer - The 'browser:layer' directive and the 'ILayer' interface has been deprecated. Registering layers has become obsolete, layers should be created as interfaces extending 'IBrowserRequest'. - The 'browser:skin' directive has been deprecated. Skins should be created as interfaces extending 'IBrowserRequest' and can be registered using a simple 'utility' directive. - The 'ISkin' interface has been renamed to 'IBrowserSkinType'. For a complete list of changes see the 'CHANGES.txt' file. Resources --------- - Zope 3 Development Web Site: http://dev.zope.org/Zope3 - Zope 3 Dev Mailing List: http://mail.zope.org/mailman/listinfo/zope3-dev - Zope 3 Users Mailing List: http://mail.zope.org/mailman/listinfo/zope3-users - IRC Channel: #zope3-dev at irc.freenode.net Acknowledgments --------------- Thanks goes to everyone that contributed.

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Packt published an article about xtopdf - creating PDF from Plain Text, DBF, CSV, TDV, and XLS Data
by vasudevram 19 Aug '06

19 Aug '06

Hi group, This is an article I wrote for Packt Publishing - http://www.packtpub.com : Using xtopdf, a PDF creation toolkit - http://www.packtpub.com/article/Using_xtopdf It shows how to use xtopdf - http://sourceforge.net/projects/xtopdf - to create PDF from plain text, DBF, CSV, TDV and XLS data. Use of both command-line and the GUI tools in xtopdf is covered. xtopdf is written in Python and requires the ReportLab toolkit. The GUI tools are written in wxPython - http://www.wxpython.org. Enjoy Vasudev Ram ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Software consulting and training http://www.dancingbison.com ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

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ANN: Pybots -- Python Community Buildbots
by Grig Gheorghiu 17 Aug '06

17 Aug '06

The idea behind the Pybots project (short for "Python Community Buildbots") is to allow people to run automated tests for their Python projects, while using Python binaries built from the very latest source code from the Python subversion repository. The idea originated from Glyph, of Twisted fame. He sent out a message to the python-dev mailing list (thanks to John J. Lee for bringing this message to my attention), in which he said: "I would like to propose, although I certainly don't have time to implement, a program by which Python-using projects could contribute buildslaves which would run their projects' tests with the latest Python trunk. This would provide two useful incentives: Python code would gain a reputation as generally well-tested (since there is a direct incentive to write tests for your project: get notified when core python changes might break it), and the core developers would have instant feedback when a "small" change breaks more code than it was expected to." Well, Neal Norwitz made this happen by setting up a buildmaster process on one of the servers maintained by the PSF. He graciously allowed me to maintain this buildmaster, and I already added a buildslave which runs the Twisted unit tests (in honor of Glyph, who was the originator of this idea) every time a check-in is made in the Python trunk or in the 2.5 branch. You can see the buildmaster's status page here: http://www.python.org/dev/buildbot/community/all/ I strongly encourage you to contribute to the Pybots project by setting up a buildslave for your project. I'll post another entry with instructions on how to configure a buildslave so that it can be coordinated by the Pybots buildmaster. I also have a mailing list (thanks, Titus!) for people who are interested in this project: http://lists2.idyll.org/listinfo/pybots Please send a message to the pybots list, and I'll respond to you. See also my blog post here for pretty much the same information as in this message, but with more links: http://agiletesting.blogspot.com/2006/08/pybots-python-community-buildbots.… Thanks, Grig Gheorghiu

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RELEASED Python 2.5 (release candidate 1)
by Anthony Baxter 17 Aug '06

17 Aug '06

On behalf of the Python development team and the Python community, I'm happy to announce the first RELEASE CANDIDATE of Python 2.5. This is not yet the final release - it is not suitable for production use. It is being released to solicit feedback and hopefully expose bugs, as well as allowing you to determine how changes in 2.5 might impact you. As a release candidate, this is one of your last chances to test the new code in 2.5 before the final release. *Please* try this release out and let us know about any problems you find. In particular, note that changes to improve Python's support of 64 bit systems might require authors of C extensions to change their code. More information (as well as source distributions and Windows and Universal Mac OSX installers) are available from the 2.5 website: http://www.python.org/2.5/ As of this release, Python 2.5 is now in *feature freeze*. Unless absolutely necessary, no functionality changes will be made between now and the final release of Python 2.5. The plan now is to let the release candidate shake out any last-minute bugs in Python 2.5, leading to a 2.5 final release in early September. PEP 356 includes the schedule and will be updated as the schedule evolves. At this point, any testing you can do would be greatly, greatly appreciated. The new features in Python 2.5 are described in Andrew Kuchling's What's New In Python 2.5. It's available from the 2.5 web page. Amongst the language features added include conditional expressions, the with statement, the merge of try/except and try/finally into try/except/finally, enhancements to generators to produce a coroutine kind of functionality, and a brand new AST-based compiler implementation. New modules added include hashlib, ElementTree, sqlite3, wsgiref, uuid and ctypes. In addition, a new profiling module cProfile was added. Enjoy this new release, Anthony Anthony Baxter anthony(a)python.org Python Release Manager (on behalf of the entire python-dev team)

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Abstracts - Leipzig Python Workshop
by Mike Müller 15 Aug '06

15 Aug '06

The abstracts of the presentations are now available at: http://www.python-academy.de/workshop/programm.html The presentation titles are links to the abstracts. === Workshop "Python im deutschsprachigen Raum" === Die Kurzfassungen der Vorträge sind jetzt verfügbar unter: http://www.python-academy.de/workshop/programm.html Die Vortragstitel sind die Links zu den Texten. === Workshop-Details === Am 8. September 2006 findet in Leipzig der Workshop "Python im deutschsprachigen Raum" statt. Der Workshop ist als Ergänzung zu den internationalen und europäischen Python-Zusammenkünften gedacht. Die Themenpalette der Vorträge ist sehr weit gefasst und soll alles einschließen, was mit Python im deutschsprachigen Raum zu tun hat. Eine ausführliche Beschreibung der Ziele des Workshops, der Workshop-Themen sowie Details zu Organisation und Anmeldung sind unter http://www.python-academy.de/workshop nachzulesen. === Wichtige Termine === 15.08.2006 Letzter Termin für Frühbucherrabatt 08.09.2006 Workshop 15.09.2006 Letzter Termin für die Einreichung der publikationsfähigen Beiträge Dezember 2006 Veröffentlichung des Tagungsbandes === Bitte weitersagen === Der Workshop soll auch Leute ansprechen, die bisher nicht mit Python arbeiten. Wer mithelfen möchte den Workshop bekannt zu machen, kann einen Link auf http://www.python-academy.de/workshop setzen. Auch außerhalb des Internets kann der Workshop durch den Flyer http://www.python-academy.de/download/programm.pdf bekannt gemacht werden. Einfach doppelseitig ausdrucken oder kopieren und ein paar Exemplare am Schwarzen Brett von Universitäten, Firmen, Organisationen usw. aushängen. Wir freuen uns auf eine rege Teilnahme, Mike Müller Stefan Schwarzer

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Dr. Dobb's Python-URL! - weekly Python news and links (Aug 15)
by Jack Diederich 15 Aug '06

15 Aug '06

QOTW: "Consider changing your business plan: write crappy software, charge heaps for support -- it's not a novel idea" - John Machin "To make it run fast, use psyco. To make it even faster, implement the compare function in C." - Raymond Hettinger A Perl convert gladly announces his conversion but misses CPAN: http://groups.google.com/group/comp.lang.python/browse_thread/thread/f12a26… Can you obscure python code? Sure, but if you didn't bother to read the FAQ what makes you think someone will bother to read your code? http://groups.google.com/group/comp.lang.python/browse_thread/thread/b4e08a… Timbot exhaustively satisfies those with an interest in the details of not-a-number formats as Python knows them: http://groups.google.com/group/comp.lang.python/browse_thread/thread/5c2b4b… Alex Martelli provides a recipe for a model embedding of Python in C (or C++) which culminates in passing dictionary values between the two languages (as well as an accurate summary of the dead-trees literature of interest to newcomers): http://groups.google.com/group/comp.lang.python/browse_thread/thread/ab5367… David Mertz is not dead he's just writing on Developerworks instead of c.l.py: http://www.ibm.com/developerworks/blogs/page/davidmertz Releases of Note SQLAlchemy 0.2.7 "Python SQL toolkit and Object Relational Mapper" http://cheeseshop.python.org/pypi/SQLAlchemy/0.2.7 Yahoo! Developer Center, Python Edition. http://developer.yahoo.com/python/ Upcoming Community Events The 2007 Southern California Linux Expo specifically invites proposals for Python-related papers: http://groups.google.com/group/comp.lang.python/msg/36316f6227738fed Plone Conference 2006, October 25-27 (Seattle, Washington) http://plone.org/events/conferences/seattle-2006 Open Source Developers Conference Dec 5-8 (Melbourne, Australia) http://www.osdc.com.au/ ======================================================================== 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/python/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!". Write to the same address to unsubscribe. -- 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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