Mailman 3 March 2002 - Python-announce-list

ANN: Twisted 0.15.5
by Itamar Shtull-Trauring March 9, 2002

March 9, 2002

== Get Twisted == Main Twisted site: http://www.twistedmatrix.com Mirror for downloads: http://twisted.coopweb.org The latest Twisted, v0.15.5, is available now in Debian sid ("unstable"): http://packages.debian.org/unstable/net/twisted.html == What's New? == There have a been a lot of changes since out last c.l.p.a anouncement: - Win32 event loop support - A new GTK+ instant messaging client - Much improved DNS support, including the beginning of a server - Instant messaging server had many improvements - SOCKSv4 proxy server - Much improved mail server - Many more services can be configured via the web - ECO, a small lisp implementation - Log rotation for log files - More testing code (lots more, in fact) - Bug fixes, API improvements and much more. == What is Twisted? == Twisted is an event-based framework for internet applications. It includes a web server, a telnet server, a multiplayer RPG engine, a generic client and server for remote object access, and APIs for creating new protocols and services. Twisted supports integration of the Tk, GTK or wxPython event loop with its main event loop. The Win32 event loop is also supported, as is basic support for running servers on top of Jython. Twisted currently supports the following protocols, all implemented in pure python, most of them as both servers and clients: - FTP - HTTP - SOCKSv4 - SMTP - IRC - telnet - POP3 - AOL's instant messaging TOC - OSCAR, used by AOL-IM as well as ICQ (client only) - DNS - LDAP (client only) - finger - Echo, discard, chargen and friends - Twisted Perspective Broker

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EDDIE version 0.28 released
by Chris Miles March 9, 2002

March 9, 2002

EDDIE version 0.28 has been released. http://eddie-tool.net/ The EDDIE Tool is a system monitoring, security and performance analysis tool developed entirely in Python. Its key features are portability, powerful configuration and ease of expansion. It is fully threaded and currently supports Solaris, Linux and HPUX. Changes include: bugfixes; improved stability (more thread-safe); many more system stats collected from Solaris. Download: http://eddie-tool.net/download/ CHANGES: http://eddie-tool.net/doc/CHANGES Regards, Chris. -- Chris Miles chris(a)psychofx.com http://www.psychofx.com/chris/

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PEP Parade
by Tim Peters March 8, 2002

March 8, 2002

Quoting Guido's new "Parade of the PEPs" essay at http://www.python.org/doc/essays/pepparade.html """ To start off Developer's Day at the Python10 conference I gave a keynote ending in what I dubbed "the parade of the PEPs". It was a brief overview of all open PEPs, where I gave my highly personal and subjective opinion for each PEP. Later, I realized that this might have been of interest to other developers. I didn't take notes at the conference, so below is a different set of comments that I created from scratch during a single two-hour sitting on March 7, 2002. """ Since Guido's "highly personal and subjective opinions" are nevertheless destined to circumscribe every waking moment of your Python life, everyone interested in Python development should give it a good read. It's also linked to from the PEP Index page at SourceForge: http://python.sf.net/peps/ Note that Guido wants to keep 2.3 free of new core language features. You can deduce that from reading the essay, or-- like me --you can just believe it because it's true <wink>. There's a huge backlog of good ideas for improving the internals and libraries, and I wouldn't be surprised to see the focus remain there for 2.4 too.

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ANN: Python User Groups page at python.org
by Kevin Altis March 8, 2002

March 8, 2002

Python User Groups now have their own page on the Python web site: http://www.python.org/UserGroups.html If your group isn't listed or if your information is out of date, please email webmaster(a)python.org. If your group has a special event you'd like to see listed on the Events page, please email events(a)python.org. User groups are a great way to meet other Python users in your local area. Why not start one today? Note, the PUG info used to be a section on the Events page: http://www.python.org/Events.html ka

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Py Announces Articles to Appear in First Issue
by cook＠pyzine.com March 6, 2002

March 6, 2002

Py, a technical journal for Python developers, announced today the list of articles for it's first issue (01.01), due to be published April 2002. Articles included in the first issue: - Scientific Python: Introducing Numeric by Eric Jones - Simple CGI Template Processing by Michael P. Soulier - Extending Python with C - Part 1 by Alex Martelli - Image Viewing with TKinter by Blake Garretson - Threading and the Global Interpreter Lock by Aahz Scientific Python: Introducing Numeric is the first installment in an ongoing column on leveraging Python for scientific computing Eric Jones was gracious enough to take under his wing. Part 2 of Alex Martelli's (co-editor of the Python Cookbook from O'Reilly) Extending Python with C will appear in Issue 01.02. Preorders for issue 01.01 are available through March 2002 via the web site www.pyzine.com (snail mail and PayPal accepted). Preorder price per issue is US$2.00 domestic (United States) and US$3.00 international. Py is an independent print zine for Python developers. PyZine (www.pyzine.com) is the online home of the print publication Py. perm-link : http://www.pyzine.com/01.01/pr.03052002.phtml Contact Information Bryan Richard [cook(a)pyzine.com] 214 Main Street #208 El Segundo, CA 90245 vox: 310 322 6682

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[ANN] Frowns Chemoinformatics System 0.2 released
by Brian Kelley March 5, 2002

March 5, 2002

Frowns is a chemoinformatics system written almost entirely in python. New features in version 0.2 * Poor depiction of arbitrary molecules! *NEW* requires installing GraphViz from AT&T http://www.research.att.com/sw/tools/graphviz/ * Bug fixes in aromaticity perception, non ring-bonds are no longer modified. Frowns currently includes the following features * Smiles parser * Smarts substructure searching (using the bindings to VFLIB) * SD file parser with SD field manipulations * Depiction for SD files with coordinates * Molecule Fingerprint generation * Several forms of Ring Detection available * Simple aromaticity perception * Full source code You can download the latest version of frowns at http://staffa.wi.mit.edu/people/kelley/ Or you can just skim the tutorial at http://staffa.wi.mit.edu/people/kelley/frowns.html Disclaimer ========== This software reimplements some of the functionality of the Daylight toolkits but it is not meant as a replacement. Daylight's code has higher performance, commercial support, more users, more complete testing, documentation, industry backing, and a cool set of people working for them. Plus, you can run PyDaylight located at http://www.dalkescientific.com/PyDaylight/ if you don't like the C API. Given that, you may want to use FROWNS if you; * are interested in the implementation details of chemical information software * want to teach same * have ideas that can't be implemented in the Daylight toolkit (new types of ring or aromaticity perception, support for different operating systems and platforms, etc.) * don't have the financial resources for the Daylight tools * just plain can't stand the idea of non-free software * have nothing better to do in your free time. Brian Kelley Whitehead Institute for Biomedical Research

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ANN: Python Spread Module 1.1 Released
by Guido van Rossum March 5, 2002

March 5, 2002

I've released version 1.1 of the Spread Module for Python. Tadaaa: http://www.python.org/other/spread/ Changes since release 1.0 ------------------------- - The README recommend using 3.16.2rc1 or later. - Using Spread 3.16.2, it now works on Windows. - Changes to the test suite to make it less accident-prone. - Fixed race conditions having to do with disconnects in multi-threaded programs. When one of the errors CONNECTION_CLOSED or ILLEGAL_SESSION is received, mark the mbox as closed. In addition, use a lock to serialize access to the disconnected flag. - Fixed a memory leak that leaked about 50 bytes per mbox.receive() call. Enjoy! --Guido van Rossum (home page: http://www.python.org/~guido/)

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Python SOAP libraries - With and without WSDL
by jicondon＠us.ibm.com March 5, 2002

March 5, 2002

IBM developerWorks released it second article on Python and SOAP: Continuing their look at Python SOAP implementations, Mike Olson and Uche Ogbuji put the Zolera SOAP Infrastructure (ZSI) through its paces as a SOAP client and server library. They find that ZSI is possibly the best tool for SOAP use under Python right now. http://www-106.ibm.com/developerworks/library/ws-pyth6?open&l=968,t=grws,p=…

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ANN: VideoCapture 0.7 released
by Markus Gritsch March 4, 2002

March 4, 2002

VideoCapture-0.7 ================ URL: ---- http://stud4.tuwien.ac.at/~e9326522/VideoCapture/ What it is: ----------- VideoCapture is a Python extension for Win32 which makes it possible to access video-capture devices (e.g. a USB webcam, a TV-card, ...). What is new in version 0.7: --------------------------- *) Replaced the .gif fonts by .png fonts, since PIL shows a memory leak when using .gif fonts. Remove the files 'helvB08.gif' and 'helvetica-10.gif' in the Lib folder of your Python installation if you have used a version of VideoCapture prior to 0.7!! *) Replaced displayPropertyPage() by displayCaptureFilterProperties() and displayCapturePinProperties(). This finally allows selecting things like the video size used during capturing for every kind of device-drivers (now also for WDM drivers, previously only for VfW drivers). *) Since there were some memory-leak issues with some device drivers when the filter graph was started and stopped for each capture, the graph is now continuously running. Beside the solved memory issue this has the big advantage, that taking snapshots can be done *really* fast now. Taking 10 and more snapshots per second is no problem :-) *) scp can now also be performed with the pscp.exe program from PuTTY. *) Fixed a minor memory leak by freeing MediaType.pbFormat. *) Added the DirectShow AMCAP utility which can be used to check whether the capture device is compatible with VideoCapture. Enjoy, Markus

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Sketch 0.6.13
by Bernhard Herzog March 4, 2002

March 4, 2002

Sketch stable 0.6.13 released Sketch is closest to the goal of becoming an universal drawing application for GNU/Linux [...] (LinuxUser 9/2001, pp 40, translated from German) This latest release of the leading Free Software Vector Drawing application, fixes a minor security hole and adds often requested multi-line text handling. http://sketch.sourceforge.net/ Everybody running a stable sketch version should upgrade to 0.6.13. Note a new way of contributing to Sketch through minipayments (see below). Bernhard Herzog, March 2nd, 2002 What's new ========== * Multi-line Text Handling The multi-line plugin contributed by Christof Ecker makes designing covers and posters with Sketch a lot easier. It is now possible to insert and independently edit complete text blocks. Through the modular design of Sketch's data-format, the resulting files can still be edited with earlier versions of Sketch. This nicely blends in with the curvetext and geoobject add-ons to bring you a more complete set of functionality for print design for maps and flyers. * Updated import filters Acorn Drawfile import by David Boddie. Wmf import filter supports PolyPolylines by Antoon Pardon. SVG import filter parses paths more correctly now. Illustrator import filter understands text alignment now. * new command line conversion tools: skconvert and sk2ppm Skconvert can be used to translate vector formats which Sketch understands without starting the GUI. Sk2ppm writes out raster images. * simple color separation Sketch supports exporting an image with one .eps file per color. This is just simple color separation, but should be suitable for spot-color printing. * Security fix for included external eps files. The quoting of EPS filenames when calling ghostscript for preview rendering purposes was flawed. Existence of the filename is tested before this call, somewhat limiting the way this could be exploited. For rest, check the release notes: http://sketch.sourceforge.net/relnotes.html Contributions ============= Sketch is developed by Bernhard Herzog with help from volunteers. Beside the possibility to contribute your time and give feedback, report bugs, help users, write documentation or add code, there is also the possibility to buy developers time for Sketch. This is a way of contributing with money and accelerate development. This 0.6.13 release was supported by visionary individuals who bought development time which was possible for the first time. If Sketch is useful for you, please consider paying for it. http://sketch.sourceforge.net/payments.html Many thanks go to all contributers, they make it possible to bring you a vector drawing applications with all needed freedoms and power. What is Sketch? =============== Sketch is the leading free vector drawing program for GNU/Linux and other unices. It's intended to be a flexible and powerful tool for illustrations, diagrams and other purposes. It has advanced features like gradients, text along a path and clip masks and is fully scriptable due to its implementation in a combination of Python and C. The stable series uses TK as GUI. The development version builds on GTK+. Sketch is developed by Bernhard Herzog and released as Free Software under the Lesser GNU Public License (LGPL). http://sketch.sourceforge.net/

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