Mailman 3 June 2006 - Python-announce-list

Shed Skin Optimizing Python-to-C++ Compiler 0.0.10
by Mark Dufour Jan. 18, 2007

Jan. 18, 2007

Hi all, I have just released version 0.0.10 of Shed Skin, an optimizing Python-to-C++ compiler. It allows for translation of pure (unmodified), implicitly statically typed Python programs into optimized C++, and hence, highly optimized machine language. Many non-trivial benchmarks (ray tracer, chess player, othello player, sat solver, 3 sudoku solvers..) run typically 2-40 times faster than when using Psyco, 12 times on average, and 2-220 times than when using CPython, 45 times on average. Besides many bug fixes, this release adds many error messages for unsupported features, so it should be much easier to try out the compiler and work around problems. Please download this new release from http://mark.dufour.googlepages.com and let me know about any problems/successes. Thanks, Mark Dufour. -- if vars: self.output('; '.join([self.type(var)+' '+name for (name,var) in vars.items()])+';')

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ANN: SciPy 2006 Conference Reminder
by Travis N. Vaught June 30, 2006

June 30, 2006

The *SciPy 2006 Conference* is scheduled for Thursday and Friday, August 17-18, 2006 at CalTech with Sprints and Tutorials Monday-Wednesday, August 14-16. Conference details are at http://www.scipy.org/SciPy2006 The deadlines for submitting abstracts and early registration are approaching... Call for Presenters ------------------- If you are interested in presenting at the conference, you may submit an abstract in Plain Text, PDF or MS Word formats to abstracts at scipy.org <http://mail.python.org/mailman/listinfo/python-announce-list> -- the deadline for abstract submission is July 7, 2006. Papers and/or presentation slides are acceptable and are due by August 4, 2006. Registration: ------------- Early registration ($100.00) is still available through July 14. You may register online at http://www.enthought.com/scipy06. Registration includes breakfast and lunch Thursday & Friday and a very nice dinner Thursday night. After July 14, 2006, registration will cost $150.00. Tutorials and Sprints --------------------- This year the Sprints (Monday and Tuesday, August 14-15) and Tutorials (Wednesday, August 16) are no additional charge (you're on your own for food on those days, though). Remember to include these days in your travel plans. The following topics are presented as Tutorials Wednesday (more info here: http://www.scipy.org/SciPy2006/TutorialSessions): - "3D visualization in Python using tvtk and MayaVi" - "Scientific Data Analysis and Visualization using IPython and Matplotlib." - "Building Scientific Applications using the Enthought Tool Suite (Envisage, Traits, Chaco, etc.)" - "NumPy (migration from Numarray & Numeric, overview of NumPy)" The Sprint topics are under discussion here: http://www.scipy.org/SciPy2006/CodingSprints See you in August! Travis

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VPW: early registration deadline today!
by Brian Quinlan June 30, 2006

June 30, 2006

What's New? =========== The deadline for early-bird registration for the Vancouver Python Workshop is today! Early-bird registration is significantly discounted over normal registration, so register now at: http://www.vanpyz.org/conference/registration.html About the Vancouver Python Workshop =================================== The conference will begin with keynote addresses on August 4st by Guido van Rossum [1] and Jim Hugunin [2]. Further talks (and tutorials for beginners) will take place on August 5th and 6th. Ian Cavén [3] will give the closing address. The Vancouver Python Workshop is a community organized and designed for both the beginner and for the experienced Python programmer with: * tutorials for beginning programmers * advanced lectures for Python experts * case studies of Python in action * after-hours social events * informative keynote speakers More information see: http://www.vanpyz.org/conference/ or contact Brian Quinlan at: brian(a)sweetapp.com Vancouver ========= In addition to the opportunity to learn and socialize with fellow Pythonistas, the Vancouver Python Workshop also gives visitors the opportunity to visit one of the most extraordinary cities in the world [4]. For more information about traveling to Vancouver, see: http://www.vanpyz.org/conference/vancouver.html http://www.tourismvancouver.com http://en.wikipedia.org/wiki/Vancouver Important dates =============== Early registration (discounted): May 22nd to June 30th Normal registration: from July 1st Keynotes: August 4th Conference and tutorial dates: August 5th and 6th [1] Guido van Rossum (Google) is the inventor of Python and has managed its growth and development for more than a decade. Guido was awarded the Free Software Foundation Award in 2002 and Dr.Dobb's 1999 Excellence in Programming Award. Guido works at Google and spends half of his time on Python. [2] Jim Hugunin (Microsoft) is the creator of numerous innovations that take Python into new application domains. Jim's most recent project, IronPython integrates Python into Microsoft's .NET runtime. Jim's previous project, Jython is Python for the Java runtime and was the second production-quality implementation of Python. Before that, Jim's Numeric Python adapted Python to the needs of number crunching applications. Jim works at Microsoft adapting the .NET runtime to the needs of dynamic languages like Python. [3] Ian Cavén is the primary developer of the Lowry Digital Images motion picture restoration system. This Python and Zope-based system has been used to restore over 150 motion pictures. Highlights include Citizen Kane, Sunset Boulevard and both the Indiana Jones and Star Wars trilogies. While Ian was Chief Scientist at Lowry Digital, his rack of computers grew from a few Macintoshes on his desktop to over six hundred Macintosh and Linux servers - at one point earning Lowry the title as the second biggest installation of parallel processing Maintoshes in the world. In 2005, Lowry Digital Images was acquired by DTS (the famous movie audio company) and renamed DTS Digital Images. The motion picture restoration system has been discussed in publications as diverse as IEEE Spectrum, USA Today, the BBC NEWS, the New York Times and Apple.com. Ian has been a Python enthusiast since 1999. [4] http://news.bbc.co.uk/2/hi/business/2299119.stm http://edition.cnn.com/2006/BUSINESS/06/15/btn.cities/index.html Cheers, Brian

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MDP-2.0 released
by Tiziano Zito June 30, 2006

June 30, 2006

MDP version 2.0 has been released! What is it? ----------- Modular toolkit for Data Processing (MDP) is a data processing framework written in Python. From the user's perspective, MDP consists of a collection of trainable supervised and unsupervised algorithms that can be combined into data processing flows. The base of readily available algorithms includes Principal Component Analysis, two flavors of Independent Component Analysis, Slow Feature Analysis, Gaussian Classifiers, Growing Neural Gas, Fisher Discriminant Analysis, and Factor Analysis. From the developer's perspective, MDP is a framework to make the implementation of new algorithms easier. MDP takes care of tedious tasks like numerical type and dimensionality checking, leaving the developer free to concentrate on the implementation of the training and execution phases. The new elements then automatically integrate with the rest of the library. As its user base is increasing, MDP might be a good candidate for becoming a common repository of user-supplied, freely available, Python implemented data processing algorithms. Resources --------- Download: http://sourceforge.net/project/showfiles.php?group_id=116959 Homepage: http://mdp-toolkit.sourceforge.net Mailing list: http://sourceforge.net/mail/?group_id=116959 What's new in version 2.0? -------------------------- MDP 2.0 introduces some important structural changes. It is now possible to implement nodes with multiple training phases and even nodes with an undetermined number of phases. This allows for example the implementation of algorithms that need to collect some statistics on the whole input before proceeding with the actual training, or others that need to iterate over a training phase until a convergence criterion is satisfied. The ability to train each phase using chunks of input data is maintained if the chunks are generated with iterators. Nodes that require supervised training can be defined in a very straightforward way by passing additional arguments (e.g., labels or a target output) to the 'train' method. New algorithms have been added, expanding the base of readily available basic data processing elements. MDP is now based exclusively on the NumPy Python numerical extension. -- Tiziano Zito Institute for Theoretical Biology Humboldt-Universitaet zu Berlin Invalidenstrasse, 43 D-10115 Berlin, Germany Pietro Berkes Gatsby Computational Neuroscience Unit Alexandra House, 17 Queen Square London WC1N 3AR, United Kingdom

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Pydev 1.2.1 Released
by Fabio Zadrozny June 29, 2006

June 29, 2006

Hi All, Pydev and Pydev Extensions 1.2.1 have been released Details on Pydev Extensions: http://www.fabioz.com/pydev Details on Pydev: http://pydev.sf.net Details on its development: http://pydev.blogspot.com Important ---------------- 1. This release is still not available in the sourceforge downloads session because of some problems at sourceforge, but it is already placed in the update sites (and should be added to the sourceforge downloads as soon as the sourceforge release works again. 2. Eclipse 3.2: The final Eclipse 3.2 should be available (according to http://eclipse.org) in 1 day. Release Highlights in Pydev Extensions: ----------------------------------------------------------------- - Bug-Fixes Release Highlights in Pydev: ---------------------------------------------- - The user is asked for which paths should be added to the system pythonpath - Go to previous method now works with decorators - Stack-trace link now opens in correct line for external files - Variables now show in the variables view while debugging - If an invalid interpreter is selected to run a file (old interpreter or wrong project type), a warning is given to the user - Ctrl+w is removed as the default for select word (the action is still there, but its keybinding is removed, so, users have to configure themselves which keybinding they want for it) - Assign to local or field variable now enters in linked mode - Added dependency to Eclipse 3.2 features, as version 1.2.0 of pydev and newer are only Eclipse 3.2 compatible. What is PyDev? --------------------------- PyDev is a plugin that enables users to use Eclipse for Python and Jython development -- making Eclipse a first class Python IDE -- It comes with many goodies such as code completion, syntax highlighting, syntax analysis, refactor, debug and many others. Cheers, -- Fabio Zadrozny ------------------------------------------------------ Software Developer ESSS - Engineering Simulation and Scientific Software http://www.esss.com.br Pydev Extensions http://www.fabioz.com/pydev Pydev - Python Development Enviroment for Eclipse http://pydev.sf.net http://pydev.blogspot.com

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Release of PyPy videos
by Wanja Saatkamp June 29, 2006

June 29, 2006

The PyPy team is happy to announce that the first bunch of PyPy videos can now be downloaded from: http://codespeak.net/pypy/dist/pypy/doc/video-index.html The videos introduce involved people and contain different talks, tutorials and interviews such as: 1. Technical talk on the PyPy architecture, standard interpreter, translation toolchain and Just-in-time compiler at the University of Palma de Mallorca (72 min) 2. Coding discussion between Armin Rigo and Samuele Pedroni during the PyPy sprint at the University of Palma de Mallorca (40 min) 3. Core developer Holger Krekel and project manager Beatrice During explain the agile open source methods used in the PyPy project at PyCon, Dallas (26 min) 4. Core developers Michael Hudson and Christian Tismer are giving an introductory talk at PyCon, Dallas (28 min) 5. A PyPy architecture session given by core developers Holger Krekel and Armin Rigo at PyCon, Dallas (48 min) 6. A Sprint tutorial by core developer Michael Hudson who provides a detailed and hands-on overview about the architecture of PyPy, especially the translation toolchain (44 min) 7. What do you think about PyPy? Interview with American software developer Bob Ippolito at this year's PyCon, Dallas (8 min) 8. Interview with CPython core developer Tim Peters at this year's PyCon, Dallas (23 min) Some technical details: All films are in European PAL system, encoded with DivX and packed in .avi file format. The files can be downloaded using a bittorrent client. Further details regarding downloading and viewing can be found at the URL above. Have fun and don't hesitate to contact us at pypy-dev(a)codespeak.net if you encounter any problems or have any other comments, Best regards, Wanja Saatkamp & the PyPy team

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Python 2.5b1 is available for OpenVMS AXP and IA64
by Jean-François Piéronne June 29, 2006

June 29, 2006

A new Python 2.5 kit is now available for OpenVMS AXP and IA64, this kit is based on Python 2.5b1. It include some new libraries like, for example, pyExcelerator, Construct. Some new LIB$ and SYS$ routines interfaces have also be added. More information on Python from the official site http://www.python.org/ Download OpenVMS version from http://www.pi-net.dyndns.org/anonymous/kits/ Various demonstrations from http://vmspython.dyndns.org/ Jean-François

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XIST 2.14 released
by Walter Dörwald June 28, 2006

June 28, 2006

XIST 2.14 has been released! What is it? =========== XIST is an extensible HTML/XML generator written in Python. XIST is also a DOM parser (built on top of SAX2) with a very simple and Pythonesque tree API. Every XML element type corresponds to a Python class, and these Python classes provide a conversion method to transform the XML tree (e.g. into HTML). XIST can be considered "object oriented XSL". What's new in version 2.14? =========================== * Namespaces for RSS 0.91, RSS 2.0 and Atom 1.0 have been added. * A new namespace ll.xist.ns.detox has been added that is similar to ll.toxic but can be used to generate Python code instead of PL/SQL code. Using detox templates is about 50 times faster than using XIST trees directly and about 10 times faster than Kid. * Presenters are now compatible to IPython's ipipe modules. This means that you can browse XIST trees interactively if you have IPython installed. NormalPresenter and the Node methods repr and asrepr have been removed. * A new processing instruction ll.xist.ns.specials.url has been added that does the same URL transformation as ll.xist.xsc.URLAttr does. * On publishing ll.xist.ns.html.html now only adds a lang and xml:lang attribute, if neither of them exists. * setuptools is now supported for installation. For changes in older versions see: http://www.livinglogic.de/Python/xist/History.html Where can I get it? =================== XIST can be downloaded from http://ftp.livinglogic.de/xist/ or ftp://ftp.livinglogic.de/pub/livinglogic/xist/ Web pages are at http://www.livinglogic.de/Python/xist/ ViewCVS access is available at http://www.livinglogic.de/viewcvs/ For information about the mailing lists go to http://www.livinglogic.de/Python/xist/Mailinglists.html Bye, Walter Dörwald

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ll-core 1.3 released
by Walter Dörwald June 28, 2006

June 28, 2006

ll-core 1.3 has been released! What's new in version 1.3? ========================== * ll.make has been rewritten. Now there's no longer a distinction between Targets and Actions. Actions can be chained more easily and creating an action and registering it with the project are two separate steps. Actions can no longer be shared, as each action stores its own input actions (but output actions are not stored). "Ids" have been renamed to "keys" (and DBID/OracleID to DBKey/OracleKey. ImportAction has been renamed to ModuleAction and can now turn any string into a module. * In ll.url modification dates for local files now include microseconds (if the OS supports it). * A class Queue has been added to ll.misc which provides FIFO queues. * A decorator withdoc has been added to ll.misc that sets the docstring on the function it decorates. * setuptools is now supported for installation. Where can I get it? =================== ll-core can be downloaded from http://ftp.livinglogic.de/core/ or ftp://ftp.livinglogic.de/pub/livinglogic/core/ Web pages are at http://www.livinglogic.de/Python/core/ ViewCVS access is available at http://www.livinglogic.de/viewcvs/ Bye, Walter Dörwald

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VPW: early registration deadline
by Brian Quinlan June 28, 2006

June 28, 2006

What's New? =========== The deadline for early-bird registration for the Vancouver Python Workshop is this Friday, June 30th. Early-bird registration is significantly discounted over normal registration, so register now at: http://www.vanpyz.org/conference/registration.html About the Vancouver Python Workshop =================================== The conference will begin with keynote addresses on August 4st by Guido van Rossum [1] and Jim Hugunin [2]. Further talks (and tutorials for beginners) will take place on August 5th and 6th. Ian Cavén [3] will give the closing address. The Vancouver Python Workshop is a community organized and designed for both the beginner and for the experienced Python programmer with: * tutorials for beginning programmers * advanced lectures for Python experts * case studies of Python in action * after-hours social events * informative keynote speakers More information see: http://www.vanpyz.org/conference/ or contact Brian Quinlan at: brian(a)sweetapp.com Vancouver ========= In addition to the opportunity to learn and socialize with fellow Pythonistas, the Vancouver Python Workshop also gives visitors the opportunity to visit one of the most extraordinary cities in the world [4]. For more information about traveling to Vancouver, see: http://www.vanpyz.org/conference/vancouver.html http://www.tourismvancouver.com http://en.wikipedia.org/wiki/Vancouver Important dates =============== Early registration (discounted): May 22nd to June 30th Normal registration: from July 1st Keynotes: August 4th Conference and tutorial dates: August 5th and 6th [1] Guido van Rossum (Google) is the inventor of Python and has managed its growth and development for more than a decade. Guido was awarded the Free Software Foundation Award in 2002 and Dr.Dobb's 1999 Excellence in Programming Award. Guido works at Google and spends half of his time on Python. [2] Jim Hugunin (Microsoft) is the creator of numerous innovations that take Python into new application domains. Jim's most recent project, IronPython integrates Python into Microsoft's .NET runtime. Jim's previous project, Jython is Python for the Java runtime and was the second production-quality implementation of Python. Before that, Jim's Numeric Python adapted Python to the needs of number crunching applications. Jim works at Microsoft adapting the .NET runtime to the needs of dynamic languages like Python. [3] Ian Cavén is the primary developer of the Lowry Digital Images motion picture restoration system. This Python and Zope-based system has been used to restore over 150 motion pictures. Highlights include Citizen Kane, Sunset Boulevard and both the Indiana Jones and Star Wars trilogies. While Ian was Chief Scientist at Lowry Digital, his rack of computers grew from a few Macintoshes on his desktop to over six hundred Macintosh and Linux servers - at one point earning Lowry the title as the second biggest installation of parallel processing Maintoshes in the world. In 2005, Lowry Digital Images was acquired by DTS (the famous movie audio company) and renamed DTS Digital Images. The motion picture restoration system has been discussed in publications as diverse as IEEE Spectrum, USA Today, the BBC NEWS, the New York Times and Apple.com. Ian has been a Python enthusiast since 1999. [4] http://news.bbc.co.uk/2/hi/business/2299119.stm http://edition.cnn.com/2006/BUSINESS/06/15/btn.cities/index.html Cheers, Brian

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