Python-announce-list October 2004

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53 participants
72 discussions

ANN: curses-extra 0.2
by Riccardo Galli 12 Oct '04

12 Oct '04

First official release :) curses-extra offers some widgets wrotten using curses module. The following classes and functions are present in the module Widget Button ButtonBar #bar of buttons (automatically manage arrow keys) CheckButton RadioButton CheckButtonList #list of checkbutton (as ButtonBar) ComboBox Menu MenuBar add_shortcut(pattern,action) #check combinations of keys, eg <ctrl>H use_shortcut(c,obj) #check if character is a shortcut, and use it # in case #NOTE: widgets auto-check for the shortcuts chgat(win[,y,x],count,attr,color) #change attributes of an area You can find it at http://www.sideralis.net/index.php?action=4&pjid=20 Suggestions about API or about widgets' graphic are appreciated. Thanks, Riccardo -- -=Riccardo Galli=- _,e. s~ `` ~@. ideralis Programs . ol `**~ http://www.sideralis.net

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Australian Open Source Developers' Conference, Dec 2004
by Richard Jones 12 Oct '04

12 Oct '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 G'day folks, This is a quick note to let you know that registrations for Australia's first Open Source Developers' Conference are now open. If you register before 31st October 2004 you will receive a conference t-shirt and financial discount. The t-shirts look fantastic. :) You can register at http://www.osdc.com.au/ OSDC is a grassroots-style conference designed by developers for developers, covering open source languages, tools, libraries, operating systems, licences and business models. We're booking 3 lecture rooms each day for the 3 days and every single slot is filled with a talk. There are 60 different talks by 45 different speakers, not including the keynotes. Talks topics range from dealing with hardware in Perl, to designing cochlear implants with Python, to writing large-scale PHP. We also have talks on the Firebird Database, Mozilla XUL, Lego Micromouse (and maze solving), MySQL, CVS, Make, DocBook and writing games with Javascript. You can find the list of speakers and talk titles at http://www.osdc.com.au/papers/index.html Speaker names listed as "unavailable" means that that speaker opted to have their paper refereed. Their names will appear once the refereeing process is over. Because there are so many good talks, you can be certain that there will be something that interests you in every talk session. In our initial timetable it was impossible to put the most interesting talks into sequential timeslots as we had too many "most interesting" talks for the time available. Each day will start with a 1.5 hour keynote by our excellent keynote speakers. These include Damian Conway, Nathan Torkington, Anthony Baxter, Luke Welling and Con Zymaris. The rest of the day will be filled with 5 hours of talks and plentiful food breaks. Our catering choices should result in you being extraordinarily well fed throughout the days of the conference. There will also be a key-signing, several BOFs (yet to be organised), lots of opportunities to socialise, a semi-formal dinner, a partners' programme and other usual conference stuff. If you have any other questions about what is happening, please don't hesitate to ask: osdc-help(a)osdc.com.au -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.4 (GNU/Linux) iD8DBQFBa5yDrGisBEHG6TARAst4AJkBRd4kg9t+XZLVqVr6Zy+YV03HJACeLvug Oh+B0WlWAnrDXF9ZVXIEo8o= =1Z93 -----END PGP SIGNATURE-----

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BayPIGgies: October 14, 7:30pm
by Aahz 11 Oct '04

11 Oct '04

The next meeting of BayPIGgies will be Thurs October 14 at 7:30pm. In lieu of a speaker, we'll be having a Beginner's Roundtable run by Danny Yoo. BayPIGgies meetings are in Stanford, California. For more information and directions, see http://www.baypiggies.net/ Before the meeting, we may meet at 6pm for dinner in downtown Palo Alto. Discussion of dinner plans is handled on the BayPIGgies mailing list. Advance notice: The November 11 meeting agenda has not been set. Please send e-mail to baypiggies(a)baypiggies.net if you want to make a presentation. -- Aahz (aahz(a)pythoncraft.com) <*> http://www.pythoncraft.com/ WiFi is the SCSI of the 21st Century -- there are fundamental technical reasons for sacrificing a goat. (with no apologies to John Woods)

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ANN: Python Computer Graphics Kit v1.2.0
by Matthias Baas 11 Oct '04

11 Oct '04

Release 1.2.0 of the Python Computer Graphics Kit is available at http://cgkit.sourceforge.net What is it? ----------- The kit is a collection of Python modules that contain the basic types and functions required for creating 3D computer graphics images. The kit includes several new types such as vectors, matrices and quaternions. It contains a binding for Pixar's RenderMan interface which is a renderer independent API to communicate 3D data to renderers which will finally produce a 2D image. There are already several RenderMan compliant renderers freely available (they are not part of the kit). The kit also includes some of the functionality from the RenderMan Shading Language which enables you to create procedural models or textures from within Python. Even though the kit focuses on RenderMan, the new types or the Shading Language functionality can also be used for other rendering mechanism such as OpenGL or other renderers such as POV-Ray. The kit should run on any platform where Python (and a C/C++ compiler) is available. Binary packages are available for Windows and Debian. What's new? ----------- The new release fixes a crash that could occur with the Python 2.2 binary package on Windows. The problem was actually a bug in Pyrex and occurred during a garbage collection cycle after a vector has been unpacked. Apart from that, there are a few small bug fixes in the ri and cgtypes module (see changelog). Debian users can now also download a binary package (thanks to Brett Hartshorn!). For more information, visit: http://cgkit.sourceforge.net - Matthias -

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Module import dependency graph pictures
by Toby Dickenson 11 Oct '04

11 Oct '04

What every large python project needs.... pretty pictures of the module dependency graph. http://www.tarind.com/depgraph.html .....a few scripts to glue modulefinder.py into graphviz, producing import dependency pictures pretty enough for use as a poster, and containing enough information to be a core part of my process for understanding physical dependencies.

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Dr. Dobb's Python-URL! - weekly Python news and links (Oct 11)
by Ville Vainio 11 Oct '04

11 Oct '04

QOTW: "As revealed by PSU Research Paper 'UU788', the real reason is a side effect of the nanovirus encroaching into non-whitespace, as first proposed by 'UU355' and then earlier proven (twice, as it turned out) by 'UU6 9'. The only defence is t*^$Z:%Z* NO CARRIER" - Richie Hindle. He appears to have survived the... unfortunate incident. "What do I have to say to get into the QOTW?" - Dan Python, who finally realized that Dan Perl is not going to cut it as a name. Johannes Eble is looking for software te help replace Matlab with Python. Respondents recommend the combination of SciPy and IPython. http://groups.google.com/groups?threadm=uhu1m0t4euvekl61ilengepdhuettvmutr%… Irmen de Jong is looking for a way to make an object temporarily read-only. Alex Martelli comes up with a clever, obvious-when-you-have-seen-it approach of changing the class of the live object. http://groups.google.com/groups?selm=1gl6bdp.rudxqrkoby1zN%25aleaxit%40yaho… Global interpreter lock of CPython and multi-CPU scalability are a recurrent theme in comp.lang.python. The current concern involves the upcoming availability and popularity of multicore CPUs. http://groups.google.com/groups?threadm=6db3f637.0410042045.2171ad5f40posti… PySQLite, the python interface to the SQLite embedded relational database, hits 1.0. http://groups.google.com/groups?selm=mailman.4368.1097005231.5135.python-li… Carlos Ribeiro provides Erik Johnson a simple explanation of the mechanics behind class and function definitions - a simple matter that confuses many, especially people who think Python has such things as 'declarations'. http://groups.google.com/groups?selm=mailman.4460.1097104255.5135.python-li… Alex Martelli shows how we should use the plain objects returned by object() as sentinels. http://groups.google.com/groups?threadm=1glatop.p9hsopf3b9m4N%25aleaxit%40y… Robin Becker needs to determine whether an object is a sequence. http://groups.google.com/groups?threadm=41650CAE.704%40chamonix.reportlab.c… Boo 0.4.3, the Python-like language for .NET/Mono CLR, is out. http://groups.google.com/groups?selm=8PGdnS7wN_uwg_rcRVn-qw%40comcast.com ======================================================================== 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. 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 Brett Cannon continues the marvelous tradition established by Andrew Kuchling and Michael Hudson 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/ The Python Business Forum "further[s] the interests of companies that base their business on ... Python." http://www.python-in-business.org 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 Cetus collects Python hyperlinks. 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://python.sourceforge.net/peps/pep-0042.html 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. *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/topics/pythonurl/ http://purl.org/thecliff/python/url.html (dormant) or http://groups.google.com/groups?oi=djq&as_q=+Python-URL!&as_ugroup=comp.lan… 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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Chicago Python Users Group, October 14
by Ian Bicking 10 Oct '04

10 Oct '04

The Chicago Python User Group, ChiPy, will have its next meeting on Thursday, October 14, starting at 7pm. For more information on ChiPy see http://chipy.org This month Edward Ream will be giving a presentation on his project, Leo: http://webpages.charter.net/edreamleo/front.html About the Presentation ---------------------- Leo is an outlining editor that creates and displays relationships between code and data in a new way; you can't do what Leo does with Emacs or any other tool. Leo shows these relationships in an outline using noweb, a simple markup language. Clones are separate parts of an outline that represent the same data. Clones allow you to create multiple views of data within a single outline. Edward's talk will briefly discuss outlines, noweb and clones, and then show how these three powerful features can be combined to clarify and simplify all aspects of programming: design, coding, testing and unit test, maintenance, data management and project management. Edward K. Ream received a masters degree in computer science from the University of Wisconsin, Madison in 1974 and has been programming ever since. He is the author of numerous public domain programs written in C. He has been working on Leo for almost 10 years. For the last three years he has been programming exclusively in Python using Leo. There will also be time to chat, and many opportunities to ask questions. We encourage people at all levels to attend. Location -------- This month we will be meeting at SMS in downtown Chicago (the same place we met in August). The address is 444 N. Michigan Ave, Chicago. Enter from Michigan Ave., sign in at front desk, and take elevator to 28th floor. Transportation: parking (at cost) is available at several locations in the vicinity. Closest is under the Nordstrom building at Rush and Grand. By public transportation (recommended), take the Red Line to Grand Avenue Exit. Walk two blocks East to Michigan. Take stairs up to Michigan. 444 is one block South on the West side of the street. Wireless (and wired) internet connectivity will be available, so bring your laptops. About ChiPy ----------- We meet once a month, on the second Thursday of the month. If you can't come this month, please join our mailing list: http://lonelylion.com/mailman/listinfo/chipy

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[ANN] Boo 0.4.3 - python-like language for .NET/Mono
by Doug Holton 10 Oct '04

10 Oct '04

Rodrigo B. de Oliveira released version 0.4.3 of boo, I thought I'd share it here since there has been so much interest for similar projects like IronPython. http://boo.codehaus.org/ Boo is a python-like language for .NET or the cross-platform Mono (http://www.go-mono.com/). Version 0.4.3 adds an interactive interpreter (booish, similar to IDLE for python), elif, and a bug fix. I wrote up some notes on boo for people already familiar with Python: http://boo.codehaus.org/Gotchas+for+Python+Users Also I have collected some starter resources for getting into .NET programming: http://developers.coedit.net/DotNetProgramming A summary of some distinct features of boo: -quickly compile to an exe (can run cross-platform with Mono) -closures/anonymous methods: http://boo.codehaus.org/Closures x = def(): ...some code here -optional static typing: "x as int", "static def method1() as string:" -simple super(), automatic super calls and constructors -unless statement -built-in support for regular expressions -timespan literals: "100ms" -extensible compiler pipeline -custom macros and attributes (similar to decorators) -includes an interactive interpreter (booish) and an IDE with code completion (boox, still in development). Features in common with C#: -interfaces, enums, events -properties with getters and setters Version as string: get: return _version set: _version = value -lock (like "synchronized" in java) -asynchronous execution with BeginInvoke http://boo.codehaus.org/Asynchronous+Design+Pattern -parameter checking with required attribute: def foo([required(value > 3)] value as int): pass -using statement: (disposes of object when finished using) using f = System.IO.File.OpenText('using0.boo'): print(f.ReadLine())

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ANN: exemaker 1.0 (october 10, 2004)
by Fredrik Lundh 10 Oct '04

10 Oct '04

The ExeMaker utility takes a Python script, installs it in a given directory, and creates an EXE file in the same directory. When you run the EXE, it locates and loads a suitable Python interpreter DLL, and runs the script. Usage: > more myscript.py print "welcome to my script!" > exemaker myscript.py c:/bin c:/bin/myscript.exe ok c:/bin/myscript.py ok > myscript welcome to my script! The ExeMaker is designed to quickly turn small scripts into command line utilities, so you can use them (and distribute them) without having to set up PY associations, create BAT files, or fool around with more sophisticated bundling tools. Just run exemaker on your script, and you're done. You can get ExeMaker from: http://effbot.org/downloads/#exemaker enjoy /F

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ANN: ElementTree 1.2.1 (october 9, 2004)
by Fredrik Lundh 09 Oct '04

09 Oct '04

The Element type is a simple but flexible container object, designed to store hierarchical data structures, such as simplified XML infosets, in memory. The ElementTree package provides a Python implementation of this type, plus code to serialize element trees to and from XML files. ElementTree 1.2.1 is 1.2 plus some performance improvements that have been backported from the 1.3 development version. The new release is 20-30% faster than 1.2, on many kinds of XML documents. You can get the ElementTree toolkit from: http://effbot.org/downloads Brief documentation and some code samples (including an XML-RPC unmarshaller in 16 lines) are available from: http://effbot.org/zone/element.htm enjoy /F

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Python-announce-list October 2004