Mailman 3 April 2008 - Python-announce-list

March meeting minutes available
by David Goodger April 15, 2008

April 15, 2008

The following minutes were approved at a meeting of the PSF Board of Directors on April 14, 2008: * PSF Board meeting, March 10, 2008: http://www.python.org/psf/records/board/minutes/2008-03-10/ * PSF Members' Meeting, March 14, 2008: http://www.python.org/psf/records/members/2008-03-14/ * PSF Board meeting, March 14, 2008 (first meeting of the newly elected Board of Directors, at PyCon): http://www.python.org/psf/records/board/minutes/2008-03-14/ David Goodger, PSF Secretary

1 0

[ANN] Data Plotting Library DISLIN 9.3
by Helmut Michels April 15, 2008

April 15, 2008

Dear Python users, I am pleased to announce version 9.3 of the data plotting software DISLIN. DISLIN is a high-level and easy to use plotting library for displaying data as curves, bar graphs, pie charts, 3D-colour plots, surfaces, contours and maps. Several output formats are supported such as X11, VGA, PostScript, PDF, CGM, WMF, HPGL, TIFF, GIF, PNG, BMP and SVG. The software is available for the most C, Fortran 77 and Fortran 90/95 compilers. Plotting extensions for the interpreting languages Perl, Python and Java are also supported. DISLIN distributions and manuals in PDF, PostScript and HTML format are available from the DISLIN home page http://www.dislin.de and via FTP from the server ftp://ftp.gwdg.de/pub/grafik/dislin All DISLIN distributions are free for non-commercial use. Licenses for commercial use are available from the site http://www.dislin.de. ------------------- Helmut Michels Max Planck Institute for Solar System Research Phone: +49 5556 979-334 Max-Planck-Str. 2 Fax : +49 5556 979-240 D-37191 Katlenburg-Lindau Mail : michels(a)mps.mpg.de

1 0

ANN: PyAMF 0.3
by Thijs Triemstra | Collab April 15, 2008

April 15, 2008

We're pleased to announce PyAMF 0.3, 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, compatible with Django, Twisted, TurboGears2, Web2Py and any WSGI-compatible application. This release provides compatibility with Google App Engine and comes with following changes and fixes: - Make util.BufferedByteStream endian aware (Ticket:231) - Issue with Twisted threads (Ticket:233) - Fix interpretation of integers in AMF3 (Ticket:241) - Support for Google App Engine deployment (Ticket:237) - Classic class decoding throws an error (Ticket:248) - Make adapter framework load sub-modules (Ticket:246) - Added an adapter module for google.appengine.ext.db so that Model classes can be serialised easily (Ticket:247) - Problems with Importing and reloading files (Ticket:250) 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 IRC [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://irc.collab.eu/pyamf

1 0

Python-URL! - weekly Python news and links (Apr 14)
by Gabriel Genellina April 14, 2008

April 14, 2008

QOTW: "This for me is Python's chief selling point: dir()....dir() and help(). Python's two selling points are dir(), help(), and very readable code. Python's *three* selling points are dir(), help(), very readable code, and an almost fanatical devotion to the BFDL. Amongst Python's selling points ..." http://groups.google.com/group/comp.lang.python/msg/8723cc7522ddbac5 "Personally, I seem to get the most bang for my buck showing sysadmins Python generators. You can do some interesting things processing huge data files, infinite data streams, and other things with generators. This resonates well and is unusual enough to avoid debates where someone is going to argue that Python is just the same as Bash/Perl/Awk, etc." - David Beazley http://mail.python.org/pipermail/advocacy/2008-April/000562.html Rounding x.5 to nearest even number (and why it should/should not be done) http://groups.google.com/group/comp.lang.python/browse_thread/thread/9e505c… Trying to implement readonly class properties - eventually only a Javaism: http://groups.google.com/group/comp.lang.python/browse_thread/thread/ffcc2e… Demistifying the incompatible changes that will come Python 3.0: http://groups.google.com/group/comp.lang.python/browse_thread/thread/6b2112… Chris Lambacher nicely analyzes 3.0 for the working Pythoneer: http://opag.ca/pipermail/opag/2008-April/002734.html Seasoned developers comment on three beginners' code: http://groups.google.com/group/comp.lang.python/browse_thread/thread/22d663… http://groups.google.com/group/comp.lang.python/browse_thread/thread/de537d… http://groups.google.com/group/comp.lang.python/browse_thread/thread/e6fb4a… Selecting a database and/or ORM to start learning: http://groups.google.com/group/comp.lang.python/browse_thread/thread/9ee487… A C program embeds Python: should it use multiple interpreters or multiple threads? http://groups.google.com/group/comp.lang.python/browse_thread/thread/68c098… ======================================================================== 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.

1 0

Sybase module 0.39 released
by Sébastien Sablé April 14, 2008

April 14, 2008

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. The module is available here: http://downloads.sourceforge.net/python-sybase/python-sybase-0.39.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 0.39pre1: * Corrected "undefined symbol" date_datafmt for Sybase versions where CS_DATE_TYPE is not defined (as reported by Alexey Morsov) 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_39/…

1 0

CodeInvestigator version 0.9.0
by Martien Friedeman April 14, 2008

April 14, 2008

CodeInvestigator version 0.9.0 was released on April 14. This release fixes a bug: I've renamed the package 'cgi' to 'cgi_ci'. The naming was causing problems under Windows. A usability change was made: Line numbers are displayed next to the code. This is optional. It can be switched off in 'Settings'. CodeInvestigator is a tracing tool for Python programs. Running a program through CodeInvestigator creates a recording. Program flow, function calls, variable values and conditions are all stored for every line the program executes. The recording is then viewed with an interface consisting of the code. The code can be clicked: A clicked variable displays its value, a clicked loop displays its iterations. You read code, and have at your disposal all the run time details of that code. A computerized desk check tool and another way to learn about your program. http://sourceforge.net/project/showfiles.php?group_id=183942

1 0

Pycon FR is coming up - 16/17 mai - Paris
by Tarek Ziadé April 12, 2008

April 12, 2008

Hi all, PyCon FR is coming up ! We published yesterday the final program, and I must say that this second annual meeting of Pythoneers in Paris, looks very good. http://fr.pycon.org/programme Extracts: * Why you should learn Python * GraphViz with GvGen * Gene search * CouchDB * PyPy * Quality Assurance * Scapy * Zope 3 * zc.buildout * Django * WSGI * etc… This is going to be two intense days in Paris, so if you are around, please join us, it's free. Paris - Cité des Sciences et de la Vilette - 16/17 May . http://fr.pycon.org/presentation. The talks will be in french, but the organization team works hard to have english talks as well next year. Anyway, you don't need to speak french to join us and have a good time ;) Regards, Tarek Ziadé -- Tarek Ziadé | Association AfPy | www.afpy.org Blog FR | http://programmation-python.org Blog EN | http://tarekziade.wordpress.com/

1 0

ANN: "Who's Using Pyparsing?" - 12 new applications listed at the pyparsing wiki
by Paul McGuire April 12, 2008

April 12, 2008

The community of pyparsing users gets more and more creative! This wiki page (http://pyparsing.wikispaces.com/WhosUsingPyparsing) links to 12 new applications making use of pyparsing: asDox - Actionscript class extractor svg2imagemap - SVG -> HTML image map converter Quameon - Quantum Monte Carlo algorithms implemented in Python Pybtex - BibTeX parser Tunnelhack - text adventure madlib - fiction generator web service poetrygen - poetry generator PyMLNs - Markov Logic Networks dsniff - network monitor Bauble - biodiversity database Firebird PowerTool Numbler - spreadsheet web service Check them out! -- Paul

1 0

pyOpenSSL 0.7
by Jean-Paul Calderone April 11, 2008

April 11, 2008

pyOpenSSL is a wrapper around a subset of the OpenSSL API, including support for X509 certificates, public and private keys, and and SSL connections. pyOpenSSL 0.7 fixes a number of memory leaks and memory corruption issues. It also exposes several new OpenSSL APIs to Python: * SSL_get_shutdown and SSL_set_shutdown exposed as OpenSSL.SSL.Connection.get_shutdown and OpenSSL.SSL.Connection.set_shutdown * SSL_SENT_SHUTDOWN and SSL_RECEIVED_SHUTDOWN exposed as OpenSSL.SSL.SENT_SHUTDOWN and OpenSSL.SSL.RECEIVED_SHUTDOWN * X509_verify_cert_error_string exposed as OpenSSL.crypto.X509_verify_cert_error_string * X509.get_serial_number and X509.set_serial_number now accept long integers * Expose notBefore and notAfter on X509 certificates for inspection and mutation * Expose low-level X509Name state with X509Name.get_components * Expose hashing and DER access on X509Names pyOpenSSL home page: http://pyopenssl.sourceforge.net/ pyOpenSSL downloads: http://sourceforge.net/project/showfiles.php?group_id=31249 Jean-Paul Calderone

1 0

[ANN] EuroSciPy Registration now open
by Travis Vaught April 10, 2008

April 10, 2008

Greetings, I'm pleased to announce that the registration for the first-annual EuroSciPy Conference is now open. http://scipy.org/EuroSciPy2008 Please take advantage of the early-bird rate and register soon. We'd love to have an early idea of attendance so that we can scale the venue appropriately (the available room is flexible in this regard). The EuroSciPy Conference will be held July 26-27, 2008 in Leipzig, Germany. About EuroSciPy --------------- EuroSciPy is designed to complement the popular SciPy Conferences which have been held for the last 7 years at Caltech (the 2008 SciPy Conference in the U.S. will be held the week of August 19-24). Similarly, the EuroSciPy Conference provides a unique opportunity to learn and affect what is happening in the realm of scientific computing with Python. Attendees will have the opportunity to review the available tools and how they apply to specific problems. By providing a forum for developers to share their Python expertise with the wider commercial, academic, and research communities, this conference fosters collaboration and facilitates the sharing of software components, techniques and a vision for high level language use in scientific computing. Typical presentations include general python use in the sciences, as well as NumPy and SciPy usage for general problem solving. Beyond the excellent talks, there are inter- session discussions that prove stimulating and helpful. Registration ------------ The direct link to the registration site is here: http://www.python-academy.com/euroscipy/index.html The registration fee will be 100.00€ for early registrants and will increase to 150.00€ for late registration (after June 15). Registration will include breakfast, snacks and lunch for Saturday and Sunday. Call for Participation ---------------------- If you are interested in presenting at the EuroSciPy Conference you may submit an abstract in Plain Text, PDF or MS Word formats to euroabstracts(a)scipy.org . The deadline for abstract submission is April 30,2008. Papers and/ or presentation slides are acceptable and are due by June 15, 2008. Presentations will be allotted 30 minutes. Please pass this announcement along to any other relevant contacts. Many Thanks, Travis N. Vaught

1 0