Mailman 3 December 2009 - Python-announce-list

[IronPython] [ANN]: IronPython 2.6 final
by Dino Viehland Dec. 11, 2009

Dec. 11, 2009

Hello Python Community, We're proud to announce the release of IronPython 2.6 final. This is a major release with improvements across all areas of IronPython and can be downloaded from http://ironpython.codeplex.com/Release/ProjectReleases.aspx?ReleaseId=12482. Significant changes include: * Updating the language and standard library to match CPython 2.6 * Improved .NET integration * Updating to the latest version of the DLR * Adding previously missing CPython features and fixing bugs * Performance improvements in particular startup time improvements Python 2.6 support includes a large number of new features which include support for the new bytes and byte array types (PEP 3112<http://www.python.org/dev/peps/pep-3112/>), decorators for classes (PEP 3129<http://www.python.org/dev/peps/pep-3129/>), advanced string formatting (PEP 3101<http://www.python.org/dev/peps/pep-3101/>) which will feel familiar to .NET users and integrates nicely with IFormattable, print as a function (PEP 3105<http://www.python.org/dev/peps/pep-3105/>), Abstract Base Classes (PEP 3119<http://www.python.org/dev/peps/pep-3119/>), support for binary literals, along with lots of other minor features and changes. IronPython also continues to improve .NET integration in this release. We've added the __clrtype__ method<http://ironpython.net/ironpython/documentation/dotnet/dotnet.html#clrtype> to types which enables deep integration via meta-classes with the .NET type system. There are also a number of smaller changes such as supporting IDisposable in for loops<http://ironpython.codeplex.com/WorkItem/View.aspx?WorkItemId=24503> matching the behavior of other .NET languages. This release also includes the latest version of the DLR and fixes a number of issues related to cross-language dynamic interop. Not to be left out there's improvements in Silverlight integration by supporting Python code in HTML script tags<http://ironpython.net/browser/sl-back-to-just-text.pdf>. We've also continued to improve Python compatibility by adding missing features and fixing bugs. In this release we've added support for the ctypes<http://docs.python.org/library/ctypes.html> module which provides interop with native code in a compatible way across Python implementations. We've also implemented sys.settrace to provide support for the pdb<http://docs.python.org/library/pdb.html> module and other Python debuggers. This release also changes how we support sys._getframe: a fully working version is now available by a command line option; when not enabled sys._getframe doesn't exist at all. This release also fixes over 400 bugs removing a large number of smaller incompatibilities. As always we've also continued to improve performance, and this release primarily focuses on improving startup time. The IronPython installer now pre-compiles (ngens) IronPython during installation on both 32-bit and 64-bit platforms. Modules are now interpreted initially and hot functions are compiled for faster import times. A number of other code paths that used to involve runtime code generation have been optimized to be contained within the pre-compiled IronPython binaries. We've also made a number of smaller changes which improve performance in other areas such as adding constant folding. Finally we'd like to thank everyone who reported issues and helped make this a better release: Anders M. Mikkelsen, Dan Eloff, Zachc, yamakox, vernondcole, VAks, tscottw, tonyandrewmeyer, tomwright, TomasMatousek, tkamiya, timers, srivatsn, sopeajw, saveenr, sanxiyn, rridge, ronniemaor, quirogaco, pythonfoo, pysunil, pm100, pl6306, paulfelix, orestis, olegt, oldman, NDHUMuscle, mycall, mmaly, mmacdonaldssfcu, maplpro, luntain, llaske, lbaker, Lawouach, laurionb, laughingboy, kurhan, kuno, kowenswp, klrohe, kevgu, jmesserly, jlunder, jdhardy, jbevain, jackeyoo, hhonisch, gz, gjones, fwereade, deadalusai, daveremy, Seo Sanghyeon, CurtHagenlocher, chaghi, cgravill, cartman, bobarnso, atifaziz, ashcor, alvanet, Helmut, fuzzyman, fabiofz, Eloff, RuiDC, Kevin Chu, Kyle Howland-Rose egonw, davec, dungen, dsblank, cjacobs, dmajnemer, leppie, Mark Rees, soulfry, tatwright, ufechner and wilberforce. Thank you for your continued support of IronPython. The IronPython Team

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December Webinar: SciPy India with Travis Oliphant
by Amenity Applewhite Dec. 11, 2009

Dec. 11, 2009

Next Friday Enthought will be hosting our monthly Scientific Computing with Python Webinar: Summary of SciPy India Friday December 18 1pm CST/ 7pm UTC Register at GoToMeeting Enthought President Travis Oliphant is currently in Kerala, India as the keynote speaker at SciPy India 2009. Due to a training engagement, Travis missed SciPy for the first time this summer, so he’s excited for this additional opportunity to meet and collaborate with the scientific Python community. Speakers at the event include Jarrod Millman, David Cournapeau, Christopher Burns, Prabhu Ramachandran, and Asokan Pichai — a great group. We’re looking forward to hearing Travis’ review of the proceedings. Hope to see you there! Enthought Media

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SHPAML v0.1 -- HAML-like language for Python
by Steve Howell Dec. 11, 2009

Dec. 11, 2009

SHPAML is a HAML-like language for Python. If you are not familiar with HAML, it is a markup language implemented in Ruby that allows you to create web pages with an indentation-based syntax. SHPAML is not an exact port of HAML, but it shares the same big goal of slimming your markup, and it is written in Python! It is a simple, lightweight preprocessor and intended to be used in many authoring schemes, whether you are producing HTML directly or integrating with a templating system. More details can be found here: http://shpaml.webfactional.com/ It is an early version, but it has been well tested in practice already and is feature-complete for its fairly minimal goals as of now. The site has a link to a mailing list (Google Groups) for further discussion, if this interests you! Thanks, Steve Howell

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pysensor 0.7 released
by pb Dec. 10, 2009

Dec. 10, 2009

PySensor is an environment to work with acceleration sensor data as emitted by mobile devices such as the Nokia N95/N97 or Android G1. Acceleration data and keypress data is sent to a server (PC) where further processing, logging, recording, and visualization of the data is done. The data is then distributed to a client application. Optionally, the client application may send image data at any rate and the device retrieves these images as fast as possible; images may be dropped. Recorded input data can be replayed at original or altered speed. The server software is in Python. For each mobile platform there is a different device software sending the data - currently PyS60, Android, and JavaME/JSR-256. Integration with a client application is provided for Python, pygame, C/C++ or Java. http://code.google.com/p/pysensor/ Have fun

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Wing IDE 3.2.3 released
by Wingware Dec. 10, 2009

Dec. 10, 2009

Hi, Wingware has released version 3.2.3 of Wing IDE, our integrated development environment for the Python programming language. Wing IDE can be used on Windows, Linux, and OS X to develop Python code for web, GUI, and embedded scripting applications. Wing IDE provides auto-completion, call tips, a powerful debugger, unit testing, version control, search, and many other features. This release introduces the following minor features and improvements: * Show return value types in Source Assistant * Add preference to control folding of trailing white space * Add preference to use ## style comments in comment-out feature * Show number of search and replace matches * Added documentation for using Wing with Autodesk Maya * Correct analysis of Python 3.x builtins * Fix tutorial to work under Python 3.x as well * Turn off mixed indent tab size forcing until time of read or save * Fix issues with debugger API used for embedded debugging * Several other minor features and bug fixes. See the change log for details: http://wingware.com/pub/wingide/3.2.3/CHANGELOG.txt *Wing 3.2 Highlights* Versions 3.2.x of Wing IDE include the following new features not present in Wing IDE 3.1: * Support for Python 3.0 and 3.1 * Rewritten version control integration with support for Subversion, CVS, Bazaar, git, Mercurial, and Perforce (*) * Added 64-bit Debian, RPM, and tar file installers for Linux * File management in Project view (**) * Auto-completion in the editor obtains completion data from live runtime when the debugger is active (**) * Perspectives: Create and save named GUI layouts and optionally automatically transition when debugging is started (*) * Improved support for Cython and Pyrex (*.pyx files) * Added key binding documentation to the manual * Added Restart Debugging item in Debug menu and tool bar (**) * Improved OS Commands and Bookmarks tools (*) * Support for debugging 64-bit Python on OS X (*)'d items are available in Wing IDE Professional only. (**)'d items are available in Wing IDE Personal and Professional only. The release also contains many other minor features and bug fixes; see the change log for details: http://wingware.com/pub/wingide/3.2.3/CHANGELOG.txt *Downloads* Wing IDE Professional and Wing IDE Personal are commercial software and require a license to run. A free trial license can be obtained directly from the product when launched. Wing IDE 101 can be used free of charge. Wing IDE Pro 3.2.3 http://wingware.com/downloads/wingide/3.2 Wing IDE Personal 3.2.3 http://wingware.com/downloads/wingide-personal/3.2 Wing IDE 101 3.2.3 http://wingware.com/downloads/wingide-101/3.2 *About Wing IDE* Wing IDE is an integrated development environment designed specifically for the Python programming language. It provides powerful debugging, editing, code intelligence, testing, version control, and search capabilities. These features reduce development and debugging time, cut down on coding errors, and make it easier to understand and navigate Python code. Wing IDE is available in three product levels: Wing IDE Professional is the full-featured Python IDE, Wing IDE Personal offers a reduced feature set at a low price, and Wing IDE 101 is a free simplified version designed for teaching entry level programming courses with Python. System requirements are Windows 2000 or later, OS X 10.3.9 or later for PPC or Intel (requires X11 Server), or a recent Linux system (either 32 or 64 bit). Wing IDE 3.2 supports Python versions 2.0.x through 3.1.x. For more product information see http://wingware.com/products *Purchasing and Upgrading* Wing 3.2 is a free upgrade for all Wing IDE 3.0 and 3.1 users. Any 2.x license sold after May 2nd 2006 is free to upgrade; others cost 1/2 the normal price to upgrade. Upgrade a 2.x license: https://wingware.com/store/upgrade Purchase a 3.x license: https://wingware.com/store/purchase -- The Wingware Team Wingware | Python IDE Advancing Software Development www.wingware.com

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Design tool Jeszra 0.1 for Python / Tk
by Arndt Roger Schneider Dec. 10, 2009

Dec. 10, 2009

Hi all Python-Tkinter Users and Developers. I am pleased to announce the first public release of Jeszra (0.1). http://jeszra.sourceforge.net Jeszra is a visual design tool, written in Tcl/Tk, which combines 2D vector graphics and Graphical User Interface design. Jeszra generates Python (Tkinter) wrapper classes for the components developed within Jeszra. Through Jeszra all Tcl/Tk control become available to a Python application. Jeszra also generates DocBook manual pages for the Python wrapper classes. Examples for this are the Runtime Library and Gestalt Items, both libraries are being developed with Jeszra and documented through it: http://gestaltitems.sourceforge.net/python/index.html The latest Runtime Library and Gestalt Items are included in the jeszra01.tgz download package. Jeszra also contains a new composite library (Jeszra Library), for which Python wrapper classes are available: pythonJeszra01.tgz. http://sunet.dl.sourceforge.net/project/jeszra/Jeszra%200.1/jeszra01.tgz http://sunet.dl.sourceforge.net/project/jeszra/Jeszra%200.1/pythonJeszra01.… Jeszra Overview: - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Vector Graphics: TkZinc (3.3), TkPath (0.2 and 0.3), Tk Canvas (8.4 and 8.5) are being used for 2D-vector graphics. 2D vector graphics include transformations, gradients, transparency, images, embedded windows ... Splines for TkZinc and TkPath (requires the tclsplines package). The GUI-part: Covers every Tcl/Tk window type featuring a configure command. 15+ geometry managers are supported. Jeszra also generates and edits contents for selected windows types: Tk Listbox, Hugelist, Rtl_mlistbox, Tk Text ... Jeszra generates: Tcl/Tk, Ruby, Lisp and Python wrapper classes for the designed composites. DocBook manual pages for the generated Tcl, Ruby, Lisp and Python code. Emacs Skeletons, Xcode textmacros for the Xcode Tcl-Mode Scalable Vector Graphics (SVG), Generating SVG requires the tdom and Img packages. SVG can be generated for TkZinc, TkPath, Tk Canvas, Tk Listbox ... Screen shots (Img) are inserted for some windows, such as for Tile. Jeszra imports SVG into Tcl/Tk, TkPath 0.2 or 0.3, tdom and Img are required. Jeszra features an usual flexible User Interface, which allows for custom palettes, importing and exporting of palettes, a custom tools menu and a script recorder. The Jeszra website is currently under construction, but the Jeszra book is online: http://jeszra.sourceforge.net/jeszra/ All elements of Jeszra's User Interface are composite windows themselves and can be incorporated into other Tcl/Tk, Ruby-Tk, Tkinter, Ltk applications. The manual pages for Tcl are online at: http://jeszra.sourceforge.net/pages/ Have a nice day -roger

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gevent 0.11.2 released
by Denis Bilenko Dec. 10, 2009

Dec. 10, 2009

gevent is a coroutine-based Python networking library that uses greenlet to provide a high-level synchronous API on top of libevent event loop. Features include: - convenient API around greenlets - familiar synchronization primitives (Event, Queue) - socket module that cooperates - WSGI server on top of libevent-http - DNS requests done asynchronously through libevent-dns - monkey patching utility to get pure Python modules to cooperate * changes in 0.11.2 * - Fixed wsgi to unquote environ['PATH_INFO'] before passing to application. - Added SERVER_SOFTWARE variable to wsgi environ. - Fixed bug in JoinableQueue.task_done() that caused ValueError to be raised incorrectly here. - Fixed gevent.socket not to fail with ImportError if Python was not built with ssl support. Homepage: http://gevent.org Download page: http://pypi.python.org/pypi/gevent

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ANN: PyUseCase 3.0.1 - GUI testing for Python UIs
by Geoff Bache Dec. 9, 2009

Dec. 9, 2009

A new major release of PyUseCase came out last week with some big improvements on previous versions, and now there is a bugfix release tidying it up also. If you've looked at it before and decided it was too hard to use it might be time to try again. It no longer requires any instrumentation or any logging on your part, it generates both for you. Regards, Geoff Bache Summary for those who haven't seen it before: PyUseCase is an unconventional GUI testing tool for PyGTK, along with a framework for testing Python GUIs in general. Instead of recording GUI mechanics directly, it asks the user for descriptive names and hence builds up a "domain language" along with a "UI map file" that translates this language into actions on the current GUI widgets. The point is to reduce coupling, allow very expressive tests, and ensure that GUI changes mean changing the UI map file but not all the tests. Instead of an "assertion" mechanism, it auto-generates a log of the GUI appearance and changes to it. The point is then to use that as a baseline for text-based testing, using e.g. TextTest. It also includes support for instrumenting code so that "waits" can be recorded, making it far easier for a tester to record correctly synchronized tests without having to explicitly plan for this. Homepage: http://www.texttest.org/index.php?page=ui_testing Download: http://sourceforge.net/projects/pyusecase Mailing list: https://lists.sourceforge.net/lists/listinfo/pyusecase-users (new) Bugs: https://bugs.launchpad.net/pyusecase/ Source: https://code.launchpad.net/pyusecase/

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Python-URL! - weekly Python news and links (Dec 9)
by Gabriel Genellina Dec. 9, 2009

Dec. 9, 2009

QOTW: "I'm not sure you ever understood what the problem was, or where, but I'm happy you feel like you've solved it." - Marco Mariani http://groups.google.com/group/comp.lang.python/browse_thread/thread/8ec7ad… Python 2.7a1, the first alpha release of the 2.7 series, is available now: http://groups.google.com/group/comp.lang.python/t/743e13e80290fbbf/ A bidirectional dictionary structure analyzed: http://groups.google.com/group/comp.lang.python/t/785d100681f7d101/ How to define and use a nested class: http://groups.google.com/group/comp.lang.python/t/6649dfa6eb9797c8/ PyCon 2010 registration opens: http://pycon.blogspot.com/2009/11/registration-for-pycon-2010-is-open.html Why not have a local variable scope smaller than a function? http://groups.google.com/group/comp.lang.python/t/57a8dec0d5d5deda/ How to test whether two floating point values are "close enough" to be almost equal: http://groups.google.com/group/comp.lang.python/t/54ec18c06c46caaf/ A special notation for accessing dynamic attribute names: http://groups.google.com/group/comp.lang.python/t/2f5674a1f451b12f/ Computed attributes, properties, and the descriptor protocol "magic": http://groups.google.com/group/comp.lang.python/t/c07268689549cf01/ Name resolution, global names, importing modules, and how all of them interact: http://groups.google.com/group/comp.lang.python/t/55afecc0d9e3e6c/ http://groups.google.com/group/comp.lang.python/t/de91efba9c5d68ae/ Are there any high-volume Python-powered websites? http://groups.google.com/group/comp.lang.python/t/7e388f22cccf7c4b/ How decoupled are the Python web frameworks? http://groups.google.com/group/comp.lang.python/t/f04940f9d4b136bc/ Moving from Python 2 to Python 3: A "cheat sheet" by Mark Summerfield http://groups.google.com/group/comp.lang.python/t/53716c4136be473b/ The sheets: http://www.informit.com/promotions/promotion.aspx?promo=137519 Thoughts about bytecode optimization and measuring overhead of the eval loop: http://groups.google.com/group/comp.lang.python/t/115b24c0ee9ee06a/ Python as the starting point for a career on IT: http://groups.google.com/group/comp.lang.python/t/907419d0cdd68570/ Idea: get around the GIL using XMLRPC http://groups.google.com/group/comp.lang.python/t/9f84e7aa634de4f5/ Bored and looking for something to do in Python: http://groups.google.com/group/comp.lang.python/t/bba7c231bb9940a4/ ======================================================================== 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" site: 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/ 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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Pydev 1.5.2 Released
by Fabio Zadrozny Dec. 9, 2009

Dec. 9, 2009

Hi All, Pydev 1.5.2 has been released Details on Pydev: http://pydev.org Details on its development: http://pydev.blogspot.com Release Highlights: ------------------------------- * Profile to have much lower memory requirements (especially on code-analysis rebuilds) * Profile for parsing to be faster * Compare Editor o Syntax highlighting integrated o Editions use the pydev editor behavior o Code completion works * Fixed issue where pydev could deadlock * No longer reporting import redefinitions and unused variables for the initial parts of imports such as import os.path * Fixed issue where pydev was removing __classpath__ from the pythonpath in jython * Using M1, M2 and M3 for keys instead of hardcoding Ctrl, Shift and Alt (which should make keybindings right on Mac OS) * Fixed some menus and popups * Properly categorizing Pydev views * Handling binary numbers in the python 2.6 and 3.0 grammar * from __future__ import print_function works on python 2.6 * Added drag support from the pydev package explorer * Properly translating slashes on client/server debug * Other minor fixes What is PyDev? --------------------------- PyDev is a plugin that enables users to use Eclipse for Python, Jython and IronPython 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 Aptana http://aptana.com/python Pydev - Python Development Environment for Eclipse http://pydev.org http://pydev.blogspot.com

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