Mailman 3 October 2004 - Python-announce-list

subprocess - updated popen5 module
by Peter Åstrand 08 Oct '04

08 Oct '04

I'd like to give you an updated status report of the popen5 project. Since my last post at 2004-06-04, this has happened: * The module has been renamed to "subprocess", primarily to avoid collision with Trent Mick's module. * I've added support for executing a command through the shell. This is done by using a keyword argument shell=True. Executing through the shell is supported both on Windows and POSIX systems. * The modules doesn't require Mark Hammond's Windows extensions any longer: Fredrik Lundh has contributed an extension module that provides the needed Win32 API. * The PEP now includes more implementation notes, as well as a lot of examples. An updated PEP has been sent to the PEP editors. With these changes, the subprocess module now feels quite complete. In the near future, I will focus on getting the module included in the standard library. The module is available from http://www.lysator.liu.se/~astrand/popen5/. /Peter Åstrand <astrand(a)lysator.liu.se>

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Lightweight Languages 2004 (LL4) CFP
by Jeremy Hylton 07 Oct '04

07 Oct '04

Lightweight Languages 2004 (LL4) ============================ Saturday, Dec. 4, 2004 MIT Stata Center, Cambridge MA Call for Presentations LL4 will be an intense, exciting, one-day forum bringing together the best programming language implementors and researchers, from both academia and industry, to exchange ideas and information, to challenge one another, and to learn from one another. The workshop series focuses on programming languages, tools, and processes that are usable and useful. Lightweight languages have been an effective vehicle for introducing new features to mainstream programmers. We encourage presentations on topics of interest to the community of lightweight language users and designers. We prefer topics that will interest a broad audience. We do not require the presentation of novel research ideas. Proposal Abstracts ----------------------- Due Nov. 12, 2004 We solicit abstracts of talks to be given at the workshop. Go for it -- convince us. Talks will be 30 minutes long, including time for questions and answers. Presenters are not expected to submit papers, but slides will be published on the workshop web site. We will also consider proposals for talks of different lengths. Some suggested topics are: * Language design: New language features, type systems and other reasoning tools, critiques of existing languages. * Implementation techniques: Interpreters and virtual machines, optimizations, cross-language interactions. * From scripts to programs: Software engineering with lightweight and/or a mix of languages. How to (or not to!) scale from little scripts to large, complex applications. Application war stories. * From ivory tower to cubicle -- what language implementors need to know from academic programming languages research -- and back. * Lightweight pearls: Elegant and instructive examples of programs in lightweight languages. * Programming tools and development processes. Send submissions to: ll4-submit(a)lists.csail.mit.edu We want presentations that will inspire, motivate, and educate. We want language implementors and researchers to leave the workshop fired up with ideas for future languages, features, and implementation tricks. We want language users to leave the workshop fired up with new ideas and new tools. Important Dates ------------------- Friday, Nov. 12 -- submissions due by end of day. Friday, Nov. 19 -- notification of acceptance or rejection Saturday, Dec. 4 -- 9am-7pm, LL4! Program Committee ----------------------- Ken Anderson, BBN (co-chair) David Ascher, ActiveState Jonathan Edwards, MIT Jeremy Hylton, Google (co-chair) Geoffrey Knauth, SFA Inc. Shriram Krishnamurthi, Brown University Greg Sullivan, Alphatech

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Date set for PyCon 2005
by A.M. Kuchling 07 Oct '04

07 Oct '04

The date for PyCon 2005 has been set. PyCon 2005 will be held March 23-25, 2005, in Washington D.C. at the George Washington University's Cafritz Conference Center, the same location as the previous two PyCons. Sprints will take place on March 26-27, 2005, the weekend after the conference. The call for papers for PyCon 2005 will be posted soon. The PyCon organizers pycon(a)python.org

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ANN: PIL 1.1.5 beta 1 (october 3, 2004)
by Fredrik Lundh 07 Oct '04

07 Oct '04

The Python Imaging Library (PIL) adds image processing capabilities to your Python interpreter. This library supports many file formats, and provides powerful image processing and graphics capabilities, including display support for Windows and Tkinter. PIL 1.1.5 beta 1 is now available from effbot.org: http://effbot.org/downloads#imaging (look for Imaging-1.1.5b1.tar.gz. if you're using Windows, get PIL-1.1.5b1 for your Python version) Changes in this release includes + Added new Sane release (from Ralph Heinkel). See the Sane/README and Sane/CHANGES files for more information. + Added experimental PngInfo chunk container to the PngImageFile module. This can be used to add arbitrary chunks to a PNG file. Create a PngInfo instance, use "add" or "add_text" to add chunks, and pass the instance as the "pnginfo" option when saving the file. + Added "getpalette" method. This returns the palette as a list, or None if the image has no palette. To modify the palette, use "getpalette" to fetch the current palette, modify the list, and put it back using "putpalette". + Added optional flattening to the ImagePath "tolist" method. tolist() or tolist(0) returns a list of 2-tuples, as before. tolist(1) returns a flattened list instead. + Some more (minor) build tweaks. For a list of other changes in 1.1.5, see this page: http://effbot.org/zone/pil-changes-115.htm Report bugs to the image-sig mailing list or directly to me, as usual. enjoy /F "Secret Labs AB -- makers of fine pythonware since 1997"

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Announce: Junct
by Robert Brewer 07 Oct '04

07 Oct '04

Well, Jon Udell just pointed us to Jot, which is a "next generation" wiki. I figured I should get my project on the books. Junct is a "next generation" wiki-like application. Each topic page is identified by its title, and linking between topics is automatic, just like a wiki. Junct is, however, more than your average wiki. It has additional features which provide enterprise-class functionality: * Most importantly, each Topic is owned by a Group. Each Group, therefore, has its own namespace of Topics. * Allows publishing of topics from Group to Group. * Provides customizable markup rules. * Can receive new content via email. * Can notify and remind users via email. * Provides multiple membership models. * Allows file uploads. * Shows uploaded files in an iframe if possible. * Converts Word and Excel files to plain-text Junct topics. * Is skinnable. HTML, CSS, and app logic are well-separated. * Extensible via plugins. Current plugins include: - Calendaring - Progress tracking (tasks) - Spell-check (if you run MS Word on the server) - Threaded comments - Non-wiki resource linking - Table of Contents (per Group) Junct is available via Subversion at svn://casadeamor.com/junct/trunk. It is built on top of the 'dejavu' ORM at svn://casadeamor.com/dejavu/trunk, and uses the 'cation' app framework at svn://casadeamor.com/cation/trunk. All of these are in the public domain. Junct doesn't have much documentation yet (nor do cation nor dejavu), but it's coming. Part of this posting is simply to say "I was there first" with some of these ideas. :) Robert Brewer MIS Amor Ministries fumanchu(a)amor.org

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ANN: python-ldap-2.0.3
by Michael Ströder 06 Oct '04

06 Oct '04

Find a new pre-release of python-ldap: http://python-ldap.sourceforge.net/ python-ldap provides an object-oriented API to access LDAP directory servers from Python programs. It mainly wraps the OpenLDAP 2.x libs for that purpose. Additionally it contains modules for other LDAP-related stuff (e.g. processing LDIF, LDAPURLs and LDAPv3 schema). ---------------------------------------------------------------- Released 2.0.3 2004-10-06 Changes since 2.0.2: * Added support for LDAP Password Modify Extended Operation (see RFC 3062) Demo/: * Added passwd_ext_op.py Modules/: * Added l_ldap_passwd() in LDAPObject.c Lib/: * Added methods passwd() and passwd_s() to ldap.ldapobject.LDAPObject

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ZODB 3.3 final released
by Tim Peters 06 Oct '04

06 Oct '04

I'm pleased to announce the release of ZODB 3.3 final. This corresponds to the ZODB (and ZEO) in ZopeX3-3.0.0 release candidate 2. You can download a source tarball or Windows installer from: http://zope.org/Products/ZODB3.3 Since 3.3c1, some small fixes were made on code paths unique to Zope 2.8 usage (code not used by Zope X3, Zope 3, or by ZODB itself). And thanks to a 1-character change noted by Andreas Jung, the sizes of network messages exchanged between ZEO clients and servers are smaller now, up to a factor of 4 improvement in extreme cases. See the news file for details: http://zope.org/Products/ZODB3.3/NEWS.html Note that ZODB 3.3 does not support any version of Zope 2.6 or 2.7. ZODB 3.3 does support Zope X3 and 3, and current Zope 2.8 trunk development. On a personal note, I'd like to thank Jeremy Hylton for his hard work on ZODB 3.3. He left before it was finished, but it wouldn't have even started without him. Thanks, Jeremy!

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Zope X3 3.0.0 RC 2 released
by Stephan Richter 05 Oct '04

05 Oct '04

Hello Python community, The Zope 3 development team is proud to announce the second release candidate for Zope X3 3.0.0. Hopefully this will be the last one. Zope X3 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. The "X" in the name stands for "experimental", since this release does not try to provide any backward-compatibility to Zope 2. Downloads http://zope.org/Products/ZopeX3 Installation instructions for both Windows and Un*x/Linux are now available in the top level README.txt of the distribution. The binary installer is recommended for Windows. Changes since RC 1 - A security related bug was fixed. See the "Issue Collector":http://collector.zope.org/Zope3-Dev/286 for details. - Fixed a bug that would crash the API Doc tool, if no default skin was specified. - Fixed a couple of typos in the documentation. - Updated to latest version of the ZODB, version 3.3 final. - The 'zope.app.observable' package was removed from the release, since it was unusable. - The 'zope.app.i18nfile' package was removed, since it was always just a demo to demonstrate the internationalization of content. However, it has not been maintained with regard to recent changes and does not function properly anymore, so we decided to remove it. - Updated translations. Enjoy, the Zope 3 Development Team

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ANNOUNCE: Quixote version 1.1 released
by Neil Schemenauer 05 Oct '04

05 Oct '04

Quixote is yet another framework for developing Web applications in Python. Version 1.1 is now available for download from: http://www.mems-exchange.org/software/quixote/ Changes in Quixote 1.1 ---------------------- * Fix example Apache directive for SCGI demo. * On Windows, put both stdin and stdout in binary mode. * Add 'buffered' flag to HTTPResponse (defaulting to True). * Support for the Python 2.4 'compiler' package. * Add HTTPRequest.get_scheme() method. * Use os.urandom() if it is available. Move randbytes() function to quixote.util module. * Convert tests to Sancho's utest framework. * Add 'index_filenames' keyword option to StaticDirectory. Medusa server: * Unquote the PATH_INFO environment variable. * Simplify propagation of HTTP headers. Form2 library: * Don't parse empty POSTs. * Fix a subtle bug in the multiple select widget. If nothing is selected then the value should be None, not [None]. * Add Widget.set_title(). -- Neil Schemenauer nas(a)mems-exchange.org MEMS and Nano-technology Exchange http://www.mems-exchange.org

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ANN: XMLBuilder 1.3
by Mike Hostetler 05 Oct '04

05 Oct '04

XMLBuilder is an easy way to generate XML. New in Version 1.3: * Support for non-ascii character. * You can specify the encoding when making the object. If not specified, it defaults to UTF-8. * Specify if you want the resulting XML to be pretty-printed out. Thanks to Luis Miguel Morillas for helping me with the encoding stuff, and the patches. The current version is always avaiable at: http://users.binary.net/thehaas/blogfiles//xmlbuilder.py It's easier to show you how XMLBuilder works than to tell you. Here is some samples: >>> b1.name={"person": {"attr": {"type":"friend"},"last":"flintstone", ... "first":"fred"}} >>> print b1 <?xml version="1.0" encoding="utf-8"?> <name> <person type="friend"> <last> flintstone </last> <first> fred </first> </person> </name> >>> b2 = XMLBuilder() >>> b2.person={"attr":{"type":"boss"}, "last":"Slate", "first":"Mr."} >>> print b2 <?xml version="1.0" encoding="utf-8"?> <person type="boss"><last>Slate</last><first>Mr.</first></person> >>> print(b1+b2) <?xml version="1.0" encoding="utf-8"?> <name><person type="friend"><last>flintstone</last><first>fred</first> </person><person type="boss"><last>Slate</last><first>Mr.</first></person></name> >>> nonascii ={u"français" : u"Comment ça va? Trés bien?", ... u"deutsch" : u"viel Spaß"} ## encoding='local' means to use the local encoding, in my case ISO8859-1 >>> iso = XMLBuilder(encoding="local", pretty=True) >>> iso.lang = nonascii >>> print iso <?xml version="1.0" encoding="ISO8859-1"?> <lang> <français> Comment ça va? Trés bien? </français> <deutsch> viel Spaß </deutsch> </lang> A more concrete example is at: http://users.binary.net/thehaas/blogfiles/tablegen.py -- Mike Hostetler http://www.binary.net/thehaas

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Python-announce-list October 2004