Mailman 3 February 2004 - Python-announce-list

Call for papers - FISL - Brazil
by Christiano Anderson Feb. 20, 2004

Feb. 20, 2004

Hello Python developers, I would like to invite you to join our call for papers to this conference in Porto Alegre, Brazil. The International Free Software Forum today issued a call for papers ahead of its next annual meeting. Proposals are due by March 7. Billed as one of the largest Free Software events in the world, this will be the fifth meeting of the International Free Software Forum. Over the last four years, these events have seen more than 4,000 people meet to discuss software ownership, intellectual property issues and so on. Last years event attracted delegates from as far afield as Russia, Sweden, The Netherlands, USA, France and Paraguay. Speakers at previous events include HP's Bdale Garbee, Ximian's Miguel de Icaza, Linux International's Jon 'maddog' Hall, MySQL's David Axmark, FSF's Richard Stallman and TimotyNey, LTSP's Jim McQuillan. The organisation was set up to promote awareness of free software in developing economies, such as Brasil. If you want to check some press releases, you can visit: http://www.theregister.co.uk/content/4/35424.html http://newsvac.newsforge.com/newsvac/04/02/07/1944229.shtml http://www.gnu-friends.org/story/2004/2/9/21419/74304 http://developers.slashdot.org/article.pl?sid=04/02/04/1515245 http://www.linuxpr.com/releases/6638.html Thank you! -- Christiano Anderson <anderson(a)gnu.org>

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ANN: Leo 4.1 final
by Edward K. Ream Feb. 20, 2004

Feb. 20, 2004

Leo 4.1 final is now available at http://sourceforge.net/projects/leo/ Leo 4.1 final is the culmination of four months of work. No significant bugs have been reported since 4.1 rc4. Several people have contributed nifty plugins recently. See leoPlugins.leo for full details. The highlights version 4.1: --------------------------- - Leo runs in batch mode when invoked with --script aScriptFile.py - Leo supports Unicode characters (e.g. Chinese) in path and file names. - @directives and section references are now valid when executing scripts. - @ignored and orphan nodes now valid in @file-nosent trees. - Script-based find/change commands. - Check Outline command. - Hoist & DeHoist commands. - A new gui-agnostic architecture: useful for batch mode and unit tests. - Several new configuration settings. - Many new unit tests. - A host of bug fixes. Quotes of the month ------------------- "I'm a newbie to Leo(a couple of weeks) and I feel addicted to programming again...in fact it has resurrected a dead project of mine :) The outline has proven most liberating in terms of testing ideas out. Thanks a lot!" -- anon "Wow, wow, and wow. I just started using Leo about a month ago..Now I finally understand how to use clones and I realized that this is exactly how I want to organize my information. Multiple views on my data, fully interlinkable just like my thoughts...Thanks for a great tool! -- anon "I *LIKE* it; I was amazed at how [different the Leo] experience was compared to flat-filing. It was almost Forth-like in the way that it was possible to work top-down or bottom-up at will (I believe this is the key to its strength, btw)." --Tarvin Rhodes What is Leo? ------------ - A programmer's editor, an outlining editor and a flexible browser. - A literate programming tool, compatible with noweb and CWEB. - A data organizer and project manager. Leo provides multiple views of projects within a single outline. - Fully scriptable using Python. Leo saves its files in XML format. - Portable. leo.py is 100% pure Python. - Open Software, distributed under the Python License. Leo requires Python 2.1 or above and tcl/tk 8.3 or above. Leo works on Linux, Windows and MacOs X. Links: ------ Leo: http://webpages.charter.net/edreamleo/front.html Home: http://sourceforge.net/projects/leo/ Download: http://sourceforge.net/project/showfiles.php?group_id=3458 CVS: http://sourceforge.net/cvs/?group_id=3458 Wiki: http://leo.hd1.org/ Edward K. Ream February 20, 2004 -------------------------------------------------------------------- Edward K. Ream email: edreamleo(a)charter.net Leo: Literate Editor with Outlines Leo: http://webpages.charter.net/edreamleo/front.html --------------------------------------------------------------------

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ANN: TLS Lite 0.2.0
by trevp＠trevp.net Feb. 20, 2004

Feb. 20, 2004

I'm pleased to announce TLS Lite v0.2.0. TLS Lite is a pure-python, public domain SSL/TLS library. It supports encrypted and authenticated socket communications using the TLS protocol (RFC 2246, aka SSL v3.1). TLS Lite has minimal support for X.509 certificates, but focuses on up-and-coming authentication methods like SRP [1], shared-keys [2], and cryptoIDs [3]. These methods are easier to use than the X.509 certificates normally used with TLS. They're also barely out of the oven - the first two are Internet-Drafts, and the last is something I made up. It's fun stuff to mess with, but keep in mind that the drafts may change, and the code's alpha quality.. Other highlights: - SSL v3 and TLS v1 support - Pure python - with AES, throughput ~25 KB/sec, on a P4 1.7 Ghz - with RC4, throughput ~250 KB/sec - Can use cryptlib [4] or OpenSSL/M2crypto [5] for faster ciphers & math: - throughput ~6 MB/sec - Integrates with httplib and SocketServer framework Home Page and Download ----------------------- http://trevp.net/tlslite Sourceforge (not much there, working on it..) ------------ http://sourceforge.net/projects/tlslite/ Mailing list ------------- http://lists.sourceforge.net/lists/listinfo/tlslite-users Feedback is much appreciated. Thanks, Trevor [1] http://www.ietf.org/internet-drafts/draft-ietf-tls-srp-06.txt [2] http://www.ietf.org/internet-drafts/draft-ietf-tls-sharedkeys-02.txt [3] http://trevp.net/cryptoID [4] http://www.cs.auckland.ac.nz/~pgut001/cryptlib/ [5] http://sandbox.rulemaker.net/ngps/m2/

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Call for Papers: 1st International Workshop on Interpreted Languages
by M.-A. Lemburg Feb. 20, 2004

Feb. 20, 2004

Sebastian Bergmann, organizer of the above workshop, asked me to post this announcement to the relevant Python lists. http://www.sebastian-bergmann.de/InterpretedLanguages2004/ I will be giving a talk on how Python is developed representing the PSF. Would be nice if we could get some more talks on Python or Python related subjects into this workshop since it reaches out to a much larger public than the Python specific conferences such as PyCon, PythonUK or EuroPython. The workshop is part of the Net.ObjectDays, a conference on OO- and Internet-based technologies: http://www.netobjectdays.org/node04/en/index.html Thanks, -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Feb 20 2004) >>> Python/Zope Consulting and Support ... http://www.egenix.com/ >>> mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ >>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ________________________________________________________________________ 2004-01-23: Released mxODBC.Zope.DA 1.0.8 http://zope.egenix.com/ ::: Try mxODBC.Zope.DA for Windows,Linux,Solaris,FreeBSD for free ! ::::

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Zope 3 sprint at PyCon
by Jim Fulton Feb. 19, 2004

Feb. 19, 2004

This is an update on the Zope 3 sprint at PyCon. The sprint will be held March 21-23. On Sunday, March 21 I will present a hands-on Zope 3 developer's tutorial. This tutorial describes how to develop applications for Zope 3 in Python. The slides can be found at: http://dev.zope.org/Zope3/ProgrammerTutorial Anyone who hasn't worked with Zope 3 before needs to attend the tutorial. If you want to learn how to develop for Zope 3 but don't want to sprint, you are welcomed to attend the tutorial. As far as tasks goes, I'm pretty flexible. I'd prefer that people work on things that need to be done for the first release of Zope 3, Zope X3.0: http://cvs.zope.org/Zope3/doc/TODO.txt?rev=HEAD&content-type=text/vnd.viewc… Of course, this list is likely to change before the sprint. :) I decided not to start on the 20th because I know that some of the attendees will be traveling that day. However, if any experienced Zope 3 developers want to work on the 20th, I'm open to that. If you haven't already, please let me know if you are coming, including which days you will be coming. Again, if people *just* want to come for the tutorial, that's fine. Jim -- Jim Fulton mailto:jim@zope.com Python Powered! CTO (540) 361-1714 http://www.python.org Zope Corporation http://www.zope.com http://www.zope.org

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www.python.org downtime Thurs 2/18
by Aahz Feb. 18, 2004

Feb. 18, 2004

www.python.org will be down Thurs Feb 18, 2004 starting at 23:00 GMT and lasting for approximately two hours. The machine is being moved, so this is a "hard" downtime, not just maintenance with some services down. -- Aahz (aahz(a)pythoncraft.com) <*> http://www.pythoncraft.com/ "Argue for your limitations, and sure enough they're yours." --Richard Bach

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[ANN] pyreverse 0.5
by Alexandre Feb. 17, 2004

Feb. 17, 2004

I'm pleased to announce the 0.5 release of PyReverse, after a long time without much development. This is a refactoring release, essentially to use the same underlying model as PyLint. Please Consider this release as beta software. What's new ? ------------ * removed pystats which is now included in pylint * rewritten to use logilab.common.astng instead of a custom underlying representation * refactored the diagrams generation and uses * pyvcg and pystats can now extract a diagram starting from a given class and including all parents and associated classes * simpler filter modes * slight improvments of unit test generation * added a bunch of unit tests :) What's pyreverse ? ------------------ Pyreverse is a set of utilities for Python code reverse engineering. It uses a representation of a Python project in a class hierarchy which can be used to extract information (such as generate UML diagrams or unit tests, as provided by pyargo and py2tests) Home page --------- http://www.logilab.org/projects/pyreverse Download -------- ftp://ftp.logilab.org/pub/pyreverse You will also need the latest logilab.common module, avaialble at ftp://ftp.logilab.org/pub/common Mailing list ------------ http://lists.logilab.org/mailman/listinfo/python-projects -- Alexandre Fayolle LOGILAB, Paris (France). http://www.logilab.com http://www.logilab.fr http://www.logilab.org Advanced computing - Python - Customized trainings - Consulting - XML

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[ANN] pylint 0.3.3
by Alexandre Feb. 17, 2004

Feb. 17, 2004

I'm pleased to announce the 0.3.3 release of PyLint. This is essentially a bug fix releases plus some minor features. What's new ? ------------ * added a parsable text output, used when the --parsable option is provided * added an emacs mode using this output, available in the distrib's elisp directory * fixed some typos in messages * change include-ids options to yn, and allow it to be in the configuration file * do not choke on corrupted stats files * fixed bug in the format checker which may stop pylint execution * added inimal pylint tk gui What is pylint ? ---------------- Pylint is a python tool that checks if a module satisfy a coding standard. Pylint can be seen as another pychecker since nearly all tests you can do with pychecker can also be done with Pylint. But Pylint offers some more features, like checking line-code's length, checking if variable names are well-formed according to your coding standard, or checking if declared interfaces are truly implemented, and much more (see http://www.logilab.org/pylint/ for the complete check list). The big advantage with Pylint is that it is highly configurable, customizable, and you can easily write a small plugin to add a personal feature. The usage it quite simple : $ pylint mypackage.mymodule This command will output all the errors and warnings related to the tested code (here : mypackage.mymodule), will dump a little summary at the end, and will give a mark to the tested code. Pylint is free software distributed under the GNU Public Licence. Home page --------- http://www.logilab.org/pylint/ Download -------- ftp://ftp.logilab.org/pub/pylint/ You will also eed logilab.common, from ftp://ftp.logilab.org/pub/common/ Mailing list ------------ http://lists.logilab.org/mailman/listinfo/python-projects -- Alexandre Fayolle LOGILAB, Paris (France). http://www.logilab.com http://www.logilab.fr http://www.logilab.org Advanced computing - Python - Customized trainings - Consulting - XML

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[ANN] logilab.common 0.4.4
by Alexandre Feb. 17, 2004

Feb. 17, 2004

I'm pleased to announce the 0.4.4 release of Logilab's common libraries. This is essentially a bug fix releases plus some minor features. What's new ? ------------ * modutils: special case for os.path in get_module_part * astng: handle special case where we are on a package node importing a module using the same name as the package, which may end in an infinite loop on relative imports in Node.resolve * fileutils: new get_by_ext function What is common ? ---------------- This package contains some modules used by differents Logilab's projects. Since it's useful to Logilab, it should be useful to others ;o) It contains library to ease : * command line / configuration file handling * interactive command line tools * files and text manipulation * using python instead of shell scripts * interface to OmniORB * generation of SQL queries * tests execution * manipulation of trees * access to SGBD (currently postgres and mysql) * ... Home page --------- http://www.logilab.org/projects/common Download -------- ftp://ftp.logilab.org/pub/common Mailing list ------------ mailto://python-projects@lists.logilab.org -- Alexandre Fayolle LOGILAB, Paris (France). http://www.logilab.com http://www.logilab.fr http://www.logilab.org Advanced computing - Python - Customized trainings - Consulting - XML

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ANN: matplotlib-0.50 - python plots
by jdh2358＠yahoo.com Feb. 17, 2004

Feb. 17, 2004

matplotlib is a python 2D plotting library which produces publication quality figures using in a variety of hardcopy formats (PNG, JPG, TIFF, PS) and interactive GUI environments (WX, GTK) across platforms. matplotlib can be used in python scripts, interactively from the python shell (ala matlab or mathematica), in web application servers generating dynamic charts, or embedded in GTK or WX applications. http://matplotlib.sourceforge.net What's new in matplotlib 0.50 Antigrain backend: Agg Adding to the growing list of image backends is Antigrain -- http://antigrain.com. This is a backend written mostly in extension code and is the fastest of all the image backends. Agg supports freetype fonts, antialiased drawing, alpha blending, and much more. The windows installer contains everything you need except Numeric to use the agg backend out of the box; for other platforms see http://matplotlib.sourceforge.net/backends.html#Agg Paint/libart backend David Moore wrote a backend for pypaint, a libart wrapper. libart is a high quality, cross platform image renderer that supports antialiased lines, freetype fonts, and other capabilities to soon be exploited. Thanks David! See http://matplotlib.sourceforge.net/backends.html#Paint for more information and install instructions The Matplotlib FAQ Matplotlib now has a FAQ -- http://matplotlib.sourceforge.net/faq.html Alpha channel attribute All the figure elements now have an alpha attribute to allow blending and translucency. Not all backends are currenly capable of supporting alpha - currently only Agg, but Paint should be able to support this soon - see the scatter screenshot for an example of alpha at work http://matplotlib.sourceforge.net/screenshots.html#scatter_demo2 Table class added John Gill has developed a very nice Table class and table function that plays well with bar charts and stacked bar charts. See example code and screenshot table_demo at http://matplotlib.sourceforge.net/screenshots.html#table_demo New plot commands cla and clf Clear the current axes or figure. Useful in interactive plotting from a python shell GD module on win32 With much weeping and gnashing of teeth and help from half the people on this globe, built a gdmodule win32 installer. Special thanks to Stefan Kuzminski for putting up with my endless windows confusions. See the win32 quickstart at installing the GD backend - http://matplotlib.sourceforge.net/backends.html#GDWIN32 GD supports clipping and antialiased line drawing See instructions about upgrading gd and gdmodule at Installing the GD backend. The line object has a new 'antialiased' property, that if True, the backend will render the line antialiased if supported. Note antialiased drawing under GD is slow, so be sure to turn the property off set(lines, 'antialiased', False) if you experience performance problems. If you need performance and antialiasing, use the agg backend. Wild and wonderful bar charts You can provide an optional argument bottom to the bar command to determine where the bottom of each bar is, default 0 for all. This enables stacked bar plots and candelstick plots -- examples/bar_stacked.py. Thanks to David Moore and John Gill for suggestions and code. Figure backend refactored The figure functionality was split into a backend independent component Figure and a backend dependent component FigureCanvasBase. This completes the transition to a totally abstract figure interface and improves the ability the switch backends and a figure to multiple backends. See API_CHANGES for information on migrating applications to the new API at http://matplotlib.sourceforge.net/API_CHANGES Tons of bug fixes and optimizations detailed at http://matplotlib.sourceforge.net/whats_new.html

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