Mailman 3 May 2010 - Python-announce-list

ANN: sysv_ipc 0.6 now available
by Philip Semanchuk May 21, 2010

May 21, 2010

sysv_ipc 0.6 is now available. This is the first version to include Python 3 support. sysv_ipc is a BSD-licensed module which gives Python access to System V inter-process semaphores, shared memory and message queues on most (all?) *nix flavors, and possibly Windows + Cygwin. http://semanchuk.com/philip/sysv_ipc/ Enjoy Philip

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ANN: pycairo release 1.8.10 now available
by Steve May 20, 2010

May 20, 2010

Pycairo is a set of Python bindings for the multi-platform 2D graphics library cairo. http://cairographics.org http://cairographics.org/pycairo A new pycairo release 1.8.10 is now available from: http://cairographics.org/releases/pycairo-1.8.10.tar.gz http://cairographics.org/releases/pycairo-1.8.10.tar.gz.md5 87421a6a70304120555ba7ba238f3dc3 pycairo-1.8.10.tar.gz Overview of changes from pycairo 1.8.8 to pycairo 1.8.10 ======================================================== General Changes: Pycairo 1.8.10 requires cairo 1.8.10 (or later). New Classes/Types: Win32PrintingSurface XCBSurface - add XCB support using xpyb Bug Fixes: Fix for libtool 2.2 (#27974). Mingw32 and pypy fixes (#25203). Other Changes: Tests updated. The Win32PrintingSurface and XCBSurface changes mean that pycairo 1.8.10 is not binary compatible with pycairo 1.8.8. So modules that use the pycairo C API (like pygtk) will need to be recompiled to use pycairo 1.8.10.

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KaPy -- Karlsruhe Python User Group meeting, 2010-05-21, 19:00
by Jürgen Erhard May 19, 2010

May 19, 2010

The Karlsruhe Python User Group (KaPy) meets again. Friday, 2010-04-16 (May 21st) at 19:00 (7pm) in the rooms of Entropia eV (the local affiliate of the CCC). See http://entropia.de/wiki/Anfahrt on how to get there. For your calendars: meetings are held monthly, on the 3rd Friday. Bye, J PS: Sorry for the late announcement.

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Survey: Python modules for Finance
by Sridhar Ratnakumar May 19, 2010

May 19, 2010

Working with Python modules for Finance? We`d love your feedback on our 2 minute poll about your "Must-Have" Python Packages for Finance. We`ll be posting the results in a few weeks and your contributions are greatly appreciated. Here`s the link: http://www.surveymonkey.com/s/may2010as -- Sridhar Ratnakumar Python Developer ActiveState, The Dynamic Language Experts C: 604.375.0281 F: 778.786.1133 sridharr(a)activestate.com http://www.activestate.com Get insights on Open Source and Dynamic Languages at www.activestate.com/blog

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RSFile 1.0 Released
by Pascal Chambon May 19, 2010

May 19, 2010

Hello everyone, I'm presently pleased to announce the first stable release of the "RSFile" package. RSFile aims at providing python with a cross-platform, reliable, and comprehensive file I/O API. It's actually a partial reimplementation of the io module, as compatible as possible (it passes latest stdlib io tests), and which offers a set of new - and possibly very useful - features: shared/exclusive file record locking, cache synchronization, advanced opening flags, handy stat getters (size, inode...), shortcut I/O functions etc. Unix users might particularly be interested by the workaround that this library provides, concerning the catastrophic fcntl() lock semantic (when any descriptor to a file is closed, your process loses ALL locks acquired on it through other streams). RSFile has been tested with py2.6, py2.7, and py3k, on win32 and unix-like systems, and should work with IronPython/Jython/PyPy. The technical documentation of RSFile also includes a comprehensive description of concepts and gotchas encountered while setting up this library, which could prove useful to anyone interested in getting aware about gory file I/O details. The implementation is currently pure-python, as integration with the C implementation of io module raises lots of many issues. So if you need heavy performances, standard python streams will remain necessary. But for many programs and scripts, which just care about data integrity, RSFile should be a good choice. Downloads: http://pypi.python.org/pypi/RSFile/1.0 http://bitbucket.org/pchambon/python-rock-solid-tools/downloads/ Documentation: http://bytebucket.org/pchambon/python-rock-solid-tools/wiki/index.html Enjoy, regards, Pascal PS : due to miscellaneous bugs of python core and stdlib io modules which have been fixed quite recently, it's advised to have an up-to-date minor version of python (be it 2.6, 2.7 or 3k) to benefit from RSFile.

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PyCon Australia 2010 program announced
by Richard Jones May 18, 2010

May 18, 2010

Hi all, The program for PyCon Australia 2010, to be held at the Sydney Masonic Center over the weekend of June 26 and 27, has been posted. View the full list of presentations and the schedule at: http://pycon-au.org/2010/conference/ Register here: http://pycon-au.org/reg Richard Jones PyCon Australia 2010 Program Chair

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Call for papers: SETP-10, USA, July 2010
by James Heralds May 17, 2010

May 17, 2010

It would be highly appreciated if you could share this announcement with your colleagues, students and individuals whose research is in software engineering, software testing, software quality assurance, software design and related areas. Call for papers: SETP-10, USA, July 2010 The 2010 International Conference on Software Engineering Theory and Practice (SETP-10) (website: http://www.PromoteResearch.org ) will be held during 12-14 of July 2010 in Orlando, FL, USA. SETP is an important event in the areas of Software development, maintenance, and other areas of software engineering and related topics. The conference will be held at the same time and location where several other major international conferences will be taking place. The conference will be held as part of 2010 multi-conference (MULTICONF-10). MULTICONF-10 will be held during July 12-14, 2010 in Orlando, Florida, USA. The primary goal of MULTICONF is to promote research and developmental activities in computer science, information technology, control engineering, and related fields. Another goal is to promote the dissemination of research to a multidisciplinary audience and to facilitate communication among researchers, developers, practitioners in different fields. The following conferences are planned to be organized as part of MULTICONF-10. • International Conference on Artificial Intelligence and Pattern Recognition (AIPR-10) • International Conference on Automation, Robotics and Control Systems (ARCS-10) • International Conference on Bioinformatics, Computational Biology, Genomics and Chemoinformatics (BCBGC-10) • International Conference on Computer Communications and Networks (CCN-10) • International Conference on Enterprise Information Systems and Web Technologies (EISWT-10) • International Conference on High Performance Computing Systems (HPCS-10) • International Conference on Information Security and Privacy (ISP-10) • International Conference on Image and Video Processing and Computer Vision (IVPCV-10) • International Conference on Software Engineering Theory and Practice (SETP-10) • International Conference on Theoretical and Mathematical Foundations of Computer Science (TMFCS-10) MULTICONF-10 will be held at Imperial Swan Hotel and Suites. It is a full-service resort that puts you in the middle of the fun! Located 1/2 block south of the famed International Drive, the hotel is just minutes from great entertainment like Walt Disney World® Resort, Universal Studios and Sea World Orlando. Guests can enjoy free scheduled transportation to these theme parks, as well as spacious accommodations, outdoor pools and on-site dining — all situated on 10 tropically landscaped acres. Here, guests can experience a full- service resort with discount hotel pricing in Orlando. We invite draft paper submissions. Please see the website http://www.PromoteResearch.org for more details. Sincerely James Heralds

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ANN: Yappi(Yet Another Python Profiler) 0.51 released
by Sumer Cip May 15, 2010

May 15, 2010

Hi all, Yappi (Yet Another Python Profiler) 0.51 released. See the version highlights: * OPTIMIZATION:Use per-pit cpc for better accuracy in different timing_sample values. Now timing_sample is not linearly decreasing the timing accuracy for most of the applications tested. We reduced the runtime of the profiler from 3.2 secs to 0.7 by giving away ~%2 timing accuracy. This means yappi can now run 4x-7x times faster than the standart cProfile by increasing timing_sample values with very little accuracy defect. * Python 2.6.5 gives import yappi Dll load failed error. This is due to VC2008 compile. Unfortunately, we need to use VC Express Mingw is not working because of MSVCR dll files on 2.6.5 on some machines. * Use snprintf for stat handling code. There may be some buffer overflow situations. Use PyOS_snprintf for platform differences. (Thanks to Dave Peticolas) * Format stat STRINGs from left, instead of right. (Thanks to Dave Peticolas) * OPTIMIZATION:Move ctx calculation code to callback function. Optimize call_XXX functions as much as possible. * Move timing calculation code from header to the C file. * MACRO defining code in setup.py is broken for some compilers, use DEFINE_MACRO keyword. * OPTIMIZATION:Disable HASH table linked list swapping code, it is not adapting to the profiler nature very well. Rollback to simple hash- table-bucketing. See below for more and download: http://code.google.com/p/yappi/ Thanks, twitter.com/sumercip

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Karrigell 3.1 released
by Pierre Quentel May 14, 2010

May 14, 2010

Hi, A new release of the web framework Karrigell has been released recently Its main fetaure is WSGI compliance Home page : http://karrigell.sourceforge.net Downloads : http://sourceforge.net/projects/karrigell/files/ Group : http://groups.google.com/group/karrigell?lnk= Cheers, Pierre

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ANN: MDP release 2.6 and MDP Sprint 2010
by Tiziano Zito May 14, 2010

May 14, 2010

We are glad to announce release 2.6 of the Modular toolkit for Data Processing (MDP). MDP is a Python library of widely used data processing algorithms that can be combined according to a pipeline analogy to build more complex data processing software. The base of available algorithms includes, to name but the most common, Principal Component Analysis (PCA and NIPALS), several Independent Component Analysis algorithms (CuBICA, FastICA, TDSEP, JADE, and XSFA), Slow Feature Analysis, Restricted Boltzmann Machine, and Locally Linear Embedding. What's new in version 2.6? -------------------------- - Several new classifier nodes have been added. - A new node extension mechanism makes it possible to dynamically add methods or attributes for specific features to node classes, enabling aspect-oriented programming in MDP. Several MDP features (like parallelization) are now based on this mechanism, and users can add their own custom node extensions. - BiMDP is a large new package in MDP that introduces bidirectional data flows to MDP, including backpropagation and even loops. BiMDP also enables the transportation of additional data in flows via messages. - BiMDP includes a new flow inspection tool, that runs as as a graphical debugger in the webrowser to step through complex flows. It can be extended by users for the analysis and visualization of intermediate data. - As usual, tons of bug fixes The new additions in the library have been thoroughly tested but, as usual after a public release, we especially welcome user's feedback and bug reports. MDP Sprint 2010 --------------- Following our tradition of sprint-driven development, the team of the core developers decided to organize a programming sprint open to external participants. We invite in particular all users who implemented new algorithms and would like to see them integrated in MDP: you will work together with a core developer! More info: http://sourceforge.net/apps/mediawiki/mdp-toolkit/index.php?title=MDP_Sprin… Resources --------- Download: http://sourceforge.net/projects/mdp-toolkit/files Homepage: http://mdp-toolkit.sourceforge.net Mailing list: http://lists.sourceforge.net/mailman/listinfo/mdp-toolkit-users -- Pietro Berkes Volen Center for Complex Systems Brandeis University Waltham, MA, USA Rike-Benjamin Schuppner Berlin, Germany Niko Wilbert Institute for Theoretical Biology Humboldt-University Berlin, Germany Tiziano Zito Modelling of Cognitive Processes Berlin Institute of Technology and Bernstein Center for Computational Neuroscience Berlin, Germany

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