Mailman 3 May 2009 - Python-announce-list

[RELEASED] Python 3.1 Release Candidate 1
by Benjamin Peterson 30 May '09

30 May '09

On behalf of the Python development team, I'm happy to announce the first release candidate of Python 3.1. Python 3.1 focuses on the stabilization and optimization of the features and changes that Python 3.0 introduced. For example, the new I/O system has been rewritten in C for speed. File system APIs that use unicode strings now handle paths with undecodable bytes in them. Other features include an ordered dictionary implementation, a condensed syntax for nested with statements, and support for ttk Tile in Tkinter. For a more extensive list of changes in 3.1, see http://doc.python.org/dev/py3k/whatsnew/3.1.html or Misc/NEWS in the Python distribution. This is a release candidate, and as such, we do not recommend use in production environments. However, please take this opportunity to test the release with your libraries or applications. This will hopefully discover bugs before the final release and allow you to determine how changes in 3.1 might impact you. If you find things broken or incorrect, please submit a bug report at http://bugs.python.org For more information and downloadable distributions, see the Python 3.1 website: http://www.python.org/download/releases/3.1/ See PEP 375 for release schedule details: http://www.python.org/dev/peps/pep-0375/ Enjoy, -- Benjamin Benjamin Peterson benjamin at python.org Release Manager (on behalf of the entire python-dev team and 3.1's contributors)

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cryha 1.0 - Toolkit for crypto on database
by Kless 30 May '09

30 May '09

I'm proud to release version 1.0 of cryha. Cryha is a Python toolkit for securing information into a data base; it lets hash passwords, and encrypt/decrypt personal information. It is ready for input of Unicode characters, and the schema is returned as Unicode. The text is stored according to this schema for a hash: ``separator, the hash function identifier, separator, the salt, separator, the hash output`` And this another for a cipher text: ``separator, the cipher identifier, separator, the mode identifier, separator, the IV parameter, separator, the ciphertext`` The idea of the schema has been taken of Linux systems that store the hashed passwords so, using a ``$`` as separator. It can be installed via setuptools: $ sudo easy_install cryha http://pypi.python.org/pypi/cryha/

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Python-URL! - weekly Python news and links (May 29)
by Gabriel Genellina 29 May '09

29 May '09

QOTW: "Death To Wildcard Imports" - Lawrence D'Oliveiro http://groups.google.com/group/comp.lang.python/msg/835cf7f35ed f4897 How to ask questions having a chance of being answered: http://groups.google.com/group/comp.lang.python/t/17b15282d07770d1/ Multiprocessing and memory usage: http://groups.google.com/group/comp.lang.python/t/4c9c5805aadd833d/ Of backslashes and raw string literals: http://groups.google.com/group/comp.lang.python/t/dd18130f9f379974/ How does OOP "feel" in Python? http://groups.google.com/group/comp.lang.python/t/2cf2e3c9c1df4e8b/ Sockets: how to reuse the same port quickly http://groups.google.com/group/comp.lang.python/t/82204fb9d10d38aa/ Tools to optmize math functions: http://groups.google.com/group/comp.lang.python/t/2b34fd6c43be79d6/ Replacing module with a stub for unit testing: http://groups.google.com/group/comp.lang.python/t/023dff1ec533f101/ Sometimes it's better to use delegation instead of inheritance: http://groups.google.com/group/comp.lang.python/t/86674e06fc14c6a6/ Inserting NULL values in a database: http://groups.google.com/group/comp.lang.python/t/3c3ccdbfe1bc5a45/ ======================================================================== Everything Python-related you want is probably one or two clicks away in these pages: Python.org's Python Language Website is the traditional center of Pythonia http://www.python.org Notice especially the master FAQ http://www.python.org/doc/FAQ.html PythonWare complements the digest you're reading with the marvelous daily python url http://www.pythonware.com/daily Just beginning with Python? This page is a great place to start: http://wiki.python.org/moin/BeginnersGuide/Programmers The Python Papers aims to publish "the efforts of Python enthusiasts": http://pythonpapers.org/ The Python Magazine is a technical monthly devoted to Python: http://pythonmagazine.com Readers have recommended the "Planet" sites: http://planetpython.org http://planet.python.org comp.lang.python.announce announces new Python software. Be sure to scan this newsgroup weekly. http://groups.google.com/group/comp.lang.python.announce/topics Python411 indexes "podcasts ... to help people learn Python ..." Updates appear more-than-weekly: http://www.awaretek.com/python/index.html The Python Package Index catalogues packages. http://www.python.org/pypi/ The somewhat older Vaults of Parnassus ambitiously collects references to all sorts of Python resources. http://www.vex.net/~x/parnassus/ Much of Python's real work takes place on Special-Interest Group mailing lists http://www.python.org/sigs/ Python Success Stories--from air-traffic control to on-line match-making--can inspire you or decision-makers to whom you're subject with a vision of what the language makes practical. http://www.pythonology.com/success The Python Software Foundation (PSF) has replaced the Python Consortium as an independent nexus of activity. It has official responsibility for Python's development and maintenance. http://www.python.org/psf/ Among the ways you can support PSF is with a donation. http://www.python.org/psf/donations/ The Summary of Python Tracker Issues is an automatically generated report summarizing new bugs, closed ones, and patch submissions. http://search.gmane.org/?author=status%40bugs.python.org&group=gmane.comp.p… Although unmaintained since 2002, the Cetus collection of Python hyperlinks retains a few gems. http://www.cetus-links.org/oo_python.html Python FAQTS http://python.faqts.com/ The Cookbook is a collaborative effort to capture useful and interesting recipes. http://code.activestate.com/recipes/langs/python/ Many Python conferences around the world are in preparation. Watch this space for links to them. Among several Python-oriented RSS/RDF feeds available, see: http://www.python.org/channews.rdf For more, see: http://www.syndic8.com/feedlist.php?ShowMatch=python&ShowStatus=all The old Python "To-Do List" now lives principally in a SourceForge reincarnation. http://sourceforge.net/tracker/?atid=355470&group_id=5470&func=browse http://www.python.org/dev/peps/pep-0042/ del.icio.us presents an intriguing approach to reference commentary. It already aggregates quite a bit of Python intelligence. http://del.icio.us/tag/python Enjoy the *Python Magazine*. http://pymag.phparch.com/ *Py: the Journal of the Python Language* http://www.pyzine.com Dr.Dobb's Portal is another source of Python news and articles: http://www.ddj.com/TechSearch/searchResults.jhtml?queryText=python and Python articles regularly appear at IBM DeveloperWorks: http://www.ibm.com/developerworks/search/searchResults.jsp?searchSite=dW&se… Previous - (U)se the (R)esource, (L)uke! - messages are listed here: http://search.gmane.org/?query=python+URL+weekly+news+links&group=gmane.com… http://groups.google.com/groups/search?q=Python-URL!+group%3Acomp.lang.pyth… http://lwn.net/Search/DoSearch?words=python-url&ctype3=yes&cat_25=yes There is *not* an RSS for "Python-URL!"--at least not yet. Arguments for and against are occasionally entertained. Suggestions/corrections for next week's posting are always welcome. E-mail to <Python-URL(a)phaseit.net> should get through. To receive a new issue of this posting in e-mail each Monday morning (approximately), ask <claird(a)phaseit.net> to subscribe. Mention "Python-URL!". Write to the same address to unsubscribe. -- The Python-URL! Team-- Phaseit, Inc. (http://phaseit.net) is pleased to participate in and sponsor the "Python-URL!" project. Watch this space for upcoming news about posting archives.

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PyPy Europython Sprint Announcement
by Carl Friedrich Bolz 29 May '09

29 May '09

================================================================== Birmingham (UK) EuroPython PyPy Sprints 28-29 June/ 3-4 July 2009 ================================================================== The PyPy team is sprinting at EuroPython again. This year there are `sprint days`_ before (28-29 June) and after (3-4 July) the conference. Some PyPy core people should be present during both periods. .. _`sprint days`: http://wiki.europython.eu/Sprints If you plan to attend the sprints after the conference we recommend you to listen to the PyPy technical talk (`EuroPython schedule`_) during the conference since it will give you a good overview of the status of development. Goals and topics of the sprint ------------------------------ There are many possible and interesting sprint topics to work on - here we list some possible task areas: - trying out software on PyPy's Python interpreter: the CPython test suite is not all that complete, therefore the fact that we pass most tests is no real indication of bug-freeness. We have tried and know that frameworks like Django and Twisted work with PyPy. Therefore we would like to try running more "real applications" on top of the Python interpreter (ideally ones that have a good test suite themselves and that don't need unusual extension modules). Running things on Windows is also interesting, we know our coverage there is not as good as on Linux. - check and improve Mac OS X support - starting to work on porting 2.6 features to PyPy's Python interpreter - ongoing JIT generator work - of course we are open to other ideas for what to work on. Examples could be working on other language interpreters, sandboxing, ... ------------ Registration ------------ If you'd like to come, please subscribe to the `pypy-sprint mailing list`_ and drop a note about your interests and post any questions. More organisational information will be sent to that list. Please register by adding yourself on the following list (via svn): http://codespeak.net/svn/pypy/extradoc/sprintinfo/ep2009/people.txt or on the pypy-sprint mailing list if you do not yet have check-in rights: http://codespeak.net/mailman/listinfo/pypy-sprint --------------------------------------- Preparation (if you feel it is needed): --------------------------------------- - read the `getting-started`_ pages on http://codespeak.net/pypy, especially also the `development of PyPy itself part`_ . - for inspiration, overview and technical status you are welcome to read `the technical reports available and other relevant documentation`_ - please direct any technical and/or development oriented questions to pypy-dev at codespeak.net and any sprint organizing/logistical questions to pypy-sprint at codespeak.net - if you need information about the conference, potential hotels, directions etc we recommend to look at http://www.europython.eu. We are looking forward to meet you at the EuroPython PyPy sprints! The PyPy team .. See also .. .. _getting-started: http://codespeak.net/pypy/dist/pypy/doc/getting-started.html .. _`development of PyPy itself part`: http://codespeak.net/pypy/dist/pypy/doc/getting-started-dev.html .. _`pypy-sprint mailing list`: http://codespeak.net/mailman/listinfo/pypy-sprint .. _`the technical reports available and other relevant documentation`: http://codespeak.net/pypy/dist/pypy/doc/docindex.html .. _`EuroPython schedule`: http://europython.eu/talks/timetable

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Davy's Ironpython Editor 00.01.71
by daftspaniel＠gmail.com 28 May '09

28 May '09

DIE 00.01.71 Released Davy's Ironpython Editor (DIE) is a clutter free IronPython editor written in IronPython with some basic IDE features. http://code.google.com/p/davysironpythoneditor/ Here's the detail in what has changed in 00.01.71: + Mobile Version which stores options in same dir. + Installed version stores in User Profile. (Existing Settings files don't transfer over - sorry). + 'Find in Files' feature added. + Much much Improved Capture of output from running Python scripts. + Click on error output now opens file and goes to line. + Resources - MSDN links area now low bandwith versions, Python links and Powershell launch menu. + Added CheckBox and Listbox control to gen_GUI. + Syntax Box -Exposed new property to get Caret Screen position. + Autocomplete option added - default to OFF. Experimental parsing for strings, lists and dictionaries. + Bug fixes and performance updates. Thanks Davy M

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BACON-PIG's next flight: June 24
by Stephen Waterbury 28 May '09

28 May '09

The next meeting of the BACON-PIG (Baltimore, Annapolis, Columbia, and Other Northern dc suburbs Python Interest Group) will occur at the following spacetime coordinates: Time: 6:00 PM - 7:30 PM Space: The Offices of Zenoss in Annapolis, Maryland See the BACON-PIG web site for more details: <http://pangalactic.us/bacon-pig/> Interested Pythonistas are encouraged to join the list: <https://pangalactic.us/mailman/listinfo/bacon-pig> Cheers, Steve Waterbury

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TurboGears 2.0 final released
by Mark Ramm 27 May '09

27 May '09

The long wait is finally over! I am happy to announce the release of TurboGears 2.0 final. http://turbogears.org/2.0 This release is the product of a lot of work by the whole TurboGears team, and we're very happy to have a final stable release. TurboGears 2.0 final includes all kinds of goodies for those making web applications, from one of the most powerful and flexible Object Relational Mappers available in any language, to a powerful and flexible template system. But just as important as the quality of the parts, is the out-of-the-box integration to help get you started quickly: * We have quickstart template that helps get you going quickly with everything you need: from sample templates, to sample controllers and tests. * We have an extensible user/groups/permission system that you can easily configure into your app when quickstarting a project. * We have zero config needed support for development database backed by SQLite * We have a working admin system for editing your database while your app is in development * Our admin system is extensible and reusable as a component of your application There's lots more. But we also don't think that out of the box defaults should become constraints on our users. TurboGears 2 is designe to get you started quickly and get out of your way when you know what you want. So, a trivial configuration change lets you use DB2, or Oracle, or SQLServer, and everything we've wired up for you is easy enough to customize or replace. For example, we support configs for three major python template engines out of the box, and you can easily make your own render function to handle anything else you want. One of the goals of TurboGears 2 is to use standard python components, that are valuable in all kinds of other contexts, so you are not tied into one monolythic system. Learning SQLAlchemy can help you write command line tools, GUI apps, web-services that don't use a framework; Genshi is valuable when generating all kinds of xml data for interchange between systems; the beaker is a great caching system that's valuable in all kind of web contexts, etc. TurboGears 2 final is just now comming out, but it's already in production use at places like ShootQ, RedHat (for a large set of Fedora infrastructure projects) and many other places. And we're already looking forward to a few more high profile TG2 deployments in the next few weeks. -- Mark Ramm

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Announce: pcp-0.1
by Michael Werner 27 May '09

27 May '09

Name: pcp-0.1 Description: Python Interface to SGI's Performance Co-Pilot client API License: GNU LGPL Download: ftp://oss.sgi.com/www/projects/pcp/download/python- pcp-0.1.tar.gz Web: http://oss.sgi.com/projects/pcp/ Author: Michael Werner Email: mtw at protomagic dot com Description of this Python Extension ----------------------------- This python extension, called pcp, provides an interface to the client C API for SGI's open source Performance Co-Pilot. This is a very early release and some core functionality is missing, namely reading and writing archive files. A set of convenience classes is provided, which build upon the base functionality of SGI's library. These convenience classes may change in future releases, as use-cases evolve and feedback suggests. A sample program is included. Description of SGI's Performance Co-Pilot ----------------------------- Performance Co-Pilot is a distributed mechanism for measuring and recording the performance and activity of computers, networks, applications, and servers. PCP also includes an inference engine that can trigger responses to measured conditions or events. Several hundred different operational parameters can be measured from target machines, their operating systems, MySQL, Apache, Sendmail, VMWare, KVM, etc. There is a server-side library available for writing additional plug-in modules to measure any custom target application or server. There is a client-side library for writing custom applications to collect and utilize measurements. This python extension wraps that client-side C library, libpcp. Performance Co-Pilot is known to run on Windows and many Unix/Linux variants. Example Application ----------------------------- To see an example prototype application that uses these python extensions to visualize system activity, visit ... http://blenderartists.org/forum/showthread.php?t=157085 Python.org site URL ----------------------------- <p><a href="http://oss.sgi.com/projects/pcp/">pcp 0.1</a> - Python Interface to SGI's Performance Co-Pilot client API (22-May-09) -----------------------------

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SUMMON 1.8.7 Released: 2D Visualization prototyping and scripting
by rasmus 27 May '09

27 May '09

SUMMON 1.8.7 SUMMON is a python extension module that provides rapid prototyping of 2D visualizations. By heavily relying on the python scripting language, SUMMON allows the user to rapidly prototype a custom visualization for their data, without the overhead of a designing a graphical user interface or recompiling native code. By simplifying the task of designing a visualization, users can spend more time on understanding their data. SUMMON is designed to be a fast interface for developing interactive scene graphs for OpenGL. Although python libraries already exist for accessing OpenGL, python is relatively slow for real-time interaction with large visualizations (trees with 100,000 leaves, sparse matrices with a million non-zeros, etc.). Therefore, with SUMMON all real-time interaction is handled with compiled native C++ code (via extension module). Python is only executed in the construction and occasional interaction with the visualization. This arrangement provides the best of both worlds. SUMMON 1.8.7 comes with the following features: * a demo large sparse matrix visualizer (ideal for visualizing clusterings) * a demo tree visualizer * Python C++ extension module * Fast OpenGL graphics * Drawing arbitrary points, lines, polygons, text with python scripting * Binding inputs (keyboard, mouse, hotspots) to any python function * Separate threads for python and graphics (allows use of python prompt and responsive graphics at the same time) * Transparently handles graphics event loop, scrolling, zooming, text layout (auto-clipping, scaling, alignment), and click detection; allowing you to focus on viewing your data * SVG output (also GIF/PNG/JPG/etc via ImageMagick) * Cross-platform (Linux, Windows, OS/X) * And lots of examples for how to prototype your own custom 2D visualizations Web site and download: http://people.csail.mit.edu/rasmus/summon/

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Python Ireland presents - June Talks - 10th Jun 2009 (7pm)
by Vicky Lee 27 May '09

27 May '09

Hi All, When: ---------- 10th June 2009 (7pm) Where: ---------- The Vaults, IFSC, Harbourmaster Place, Dublin 1 (under Connolly Station - map <http://www.thevaults.ie/location.php>) *Note*: Last orders for food is 8pm Presentations (in no particular order): ----------------------------------------------------- Stephen Kelly - The Grantlee Template System The Grantlee Template System is a port of the Django Template System to the Qt framework. Sean O'Donnell - Introduction to IRC programming OR - Building desktop apps using web technologies and python Rory Geoghegan - The magic of the python path module I'll be there with t-shirts (old design and new), I even found a medium for you, Padraig. :) Limited Python Ireland badges on first-come first-serve basis available on the night as well. And yes, this is still a free event. See you all there! Cheers, /// Vicky ~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~ http://irishbornchinese.com ~~ ~~ http://www.python.ie ~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~

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