Python-announce-list August 2009

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BioPython: Houston Python Meetup, Tue 8/18
by Karl Ulbrich 17 Aug '09

17 Aug '09

Our monthly Houston Python Meetup ("PyHou") will be on Tuesday August 18th starting at 7:00 PM. This month's topic BioPython -- tools for Bioinformatics processing with Python -- presented by Ryan Hill. For full details and to RSVP, please see our Meetup site: http://python.meetup.com/14/ Thanks, Karl

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[RELEASED] Python 3.1.1
by Benjamin Peterson 17 Aug '09

17 Aug '09

On behalf of the Python development team, I'm happy to announce the first bugfix release of the Python 3.1 series, Python 3.1.1. This bug fix release fixes many normal bugs and several critical ones including potential data corruption in the io library. 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/3.1/whatsnew/3.1.html or Misc/NEWS in the Python distribution. Please note the Windows and Mac binaries are not available yet but will be in the coming days. To download Python 3.1.1 visit: http://www.python.org/download/releases/3.1.1/ The 3.1 documentation can be found at: http://docs.python.org/3.1 Bugs can always be reported to: http://bugs.python.org Enjoy! -- Benjamin Peterson Release Manager benjamin at python.org (on behalf of the entire python-dev team and 3.1.1's contributors)

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[ANN] Hatta 1.3.3 wiki engine released
by Radomir Dopieralski 16 Aug '09

16 Aug '09

I'm proud to announce release 1.3.3 of Hatta wiki engine. http://hatta-wiki.org/ What is Hatta? -------------- Hatta is a small wiki engine designed to run locally or via WSGI inside a directory in a Mercurial repository. All the pages are normal text or binary (for images and such) files, also editable from outside of the wiki -- the page history is taken from the repository. Who is it for? -------------- It's mostly for small development teams to use for documentation of the project right in the repository. It's mostly a plain, traditional wiki, without fancy features to distract from doing real work. Features -------- * single python script file * no installation necessary, just run it in your repository * can also run on the server as WSGI application * fast indexed search and backlinks * lives inside a repository, so can be cloned, merged, etc. * customizable by creating wiki pages with styles, logo, menu, etc. This version ------------ * Search results based on word rank * Rendering CSV file support (thanks to Cezary Krzyżanowski) * Mac bundle (thanks to Cezary Krzyżanowski) * Configurable smileys Enjoy! -- Radomir Dopieralski, http://sheep.art.pl

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Python-URL! - weekly Python news and links (Aug 15)
by Gabriel Genellina 15 Aug '09

15 Aug '09

QOTW: "They questioned my competence and that made her very sad." - Roger Wallis,expert witness for Pirate Bay, on his wife http://torrentfreak.com/pirate-bay-witness-wife-overwhelmed-with-flowers-09… unicode(s) is, surprisingly, MUCH faster (for certain encodings) than s.decode(): http://groups.google.com/group/comp.lang.python/browse_thread/thread/314a30… It is not possible to overload a compound "< <" operator (as in: a < x < b): http://groups.google.com/group/comp.lang.python/browse_thread/thread/5b931a… Automatic join of "consecutive" " string " "literals": bug or feature? http://groups.google.com/group/comp.lang.python/browse_thread/thread/174d4e… Also, unrecognized escape sequences in string literals stay in the string: bug or feature? http://groups.google.com/group/comp.lang.python/browse_thread/thread/4e1ea6… Restricting dictionary keys to those objects explicitely defining __eq__ / __hash__ may be useful in certain cases: http://groups.google.com/group/comp.lang.python/browse_thread/thread/d35856… How to find out in which module an instance was created? http://groups.google.com/group/comp.lang.python/browse_thread/thread/6acd71… Monkey-patching an instance to make it callable (without altering other instances of the same class): http://groups.google.com/group/comp.lang.python/browse_thread/thread/6fdfc6… reload() and the 'from ... import ...' form of the import statement: http://groups.google.com/group/comp.lang.python/browse_thread/thread/994a6a… Several recipes to extract unique elements from a list: http://groups.google.com/group/comp.lang.python/t/e5015c12a57b46b8/ All those __double_underscored__ names are confusing - why do they exist? http://groups.google.com/group/comp.lang.python/t/e75ce772af98aaac/ ======================================================================== 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/ 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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PyCon 2010: Call for Proposals
by Aahz 14 Aug '09

14 Aug '09

Call for proposals -- PyCon 2010 -- <http://us.pycon.org/2010/> =============================================================== Due date: October 1st, 2009 Want to showcase your skills as a Python Hacker? Want to have hundreds of people see your talk on the subject of your choice? Have some hot button issue you think the community needs to address, or have some package, code or project you simply love talking about? Want to launch your master plan to take over the world with python? PyCon is your platform for getting the word out and teaching something new to hundreds of people, face to face. Previous PyCon conferences have had a broad range of presentations, from reports on academic and commercial projects, tutorials on a broad range of subjects and case studies. All conference speakers are volunteers and come from a myriad of backgrounds. Some are new speakers, some are old speakers. Everyone is welcome so bring your passion and your code! We're looking to you to help us top the previous years of success PyCon has had. PyCon 2010 is looking for proposals to fill the formal presentation tracks. The PyCon conference days will be February 19-22, 2010 in Atlanta, Georgia, preceded by the tutorial days (February 17-18), and followed by four days of development sprints (February 22-25). Online proposal submission is open now! Proposals will be accepted through October 1st, with acceptance notifications coming out on November 15th. For the detailed call for proposals, please see: <http://us.pycon.org/2010/conference/proposals/> For videos of talks from previous years - check out: <http://pycon.blip.tv> We look forward to seeing you in Atlanta! -- Aahz (aahz(a)pythoncraft.com) <*> http://www.pythoncraft.com/ "I saw `cout' being shifted "Hello world" times to the left and stopped right there." --Steve Gonedes

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[RELEASED] Python 3.1.1 Release Candidate
by Benjamin Peterson 13 Aug '09

13 Aug '09

On behalf of the Python development team, I'm pleased to announce the first release candidate of Python 3.1.1. This bug fix release fixes many normal bugs and several critical ones including potential data corruption in the io library. The final version should be out within the next week. 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/3.1/whatsnew/3.1.html or Misc/NEWS in the Python distribution. To download Python 3.1.1 visit: http://www.python.org/download/releases/3.1/ The 3.1 documentation can be found at: http://docs.python.org/3.1 Bugs can always be reported to: http://bugs.python.org Enjoy! -- Benjamin Peterson Release Manager benjamin at python.org (on behalf of the entire python-dev team and 3.1.1's contributors)

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ANN: mpmath 0.13 released
by Fredrik Johansson 13 Aug '09

13 Aug '09

Hi all, Version 0.13 of mpmath is now available from the website: http://code.google.com/p/mpmath/ It can also be downloaded from the Python Package Index: http://pypi.python.org/pypi/mpmath/0.13 Mpmath is a pure-Python library for arbitrary-precision floating-point arithmetic that implements an extensive set of mathematical functions. It can be used as a standalone library or via SymPy (http://code.google.com/p/sympy/), and is also available as a component of Sage (http://sagemath.org/). Version 0.13 implements about 30 new special functions, including Kelvin, Struve, Coulomb, Whittaker, associated Legendre, Meijer G, Appell, incomplete beta, generalized exponential integral, Hurwitz zeta and Clausen functions. The algorithms for hypergeometric-type functions have been greatly improved to robustly handle arbitrarily large arguments and limit cases of the parameters. Other new features and bug fixes are included as well. For a more comprehensive changelog, see: http://mpmath.googlecode.com/svn/tags/0.13/CHANGES For development tidbits and demonstrations of the new features, see the blog: http://fredrik-j.blogspot.com/ Extensive documentation is available at: http://mpmath.googlecode.com/svn/tags/0.13/doc/build/index.html Bug reports and other comments are welcome on the issue tracker at http://code.google.com/p/mpmath/issues/list or the mpmath mailing list: http://groups.google.com/group/mpmath My work on mpmath 0.13 was made with the goal to bring arbitrary-precision evaluation of special functions in Sage up to par with Mathematica and Maple, and was kindly sponsored by the American Institute of Mathematics under the support of National Science Foundation Grant No. 0757627. Special thanks to Sage's lead developer William Stein for offering his grant resources to support this project, and for providing much encouragement. The new version of mpmath will soon be available in Sage. Enjoy, Fredrik Johansson

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[ANN] pyjamas 0.6pre3 released
by Luke Kenneth Casson Leighton 13 Aug '09

13 Aug '09

much as we'd very much like to declare a 0.6 stable release, really really soon and move forward, the ChangeLog just keeps growing (133 and counting) with the bugfixes, testing and contributions since 0.5p1. pyjamas is a port of GWT to python, and includes a python-to-javascript compiler and a widget UI toolkit that is similar to pyqt4, pygtk2 etc. applications can either be run as javascript (in a web browser) or on the desktop (using pyjamas-desktop) as python. conceptually therefore, pyjamas is similar to adobe AIR - except that it's python, not ActionScript, and it's entirely free software. hurrah! key changes: * the python-to-javascript has been significantly reworked, and now includes a --strict option which adds "python strict" features at the expense of speed. to disable these, and obtain speed instead, use "-O" * pyjamas-desktop has been merged into the pyjamas distribution, which includes support for one stable browser engine (XULrunner, the same engine behind firefox); pywebkitgtk (the engine behind safari and the iphone) and MSHTML (IE's engine). pywebkitgtk is useable (but unfriendly - no DOM exception handling); MSHTML is even less friendly - COM gets in the way at present, and eats even python exceptions). there's a lot more that could be said, but you've probably noticed all the other prerelease notices so 'nuff said, other than: thank you to the people who've been helping and contributing with testing, patches and more. downloads and more information: http://pypi.python.org/pypi/Pyjamas http://sf.net/projects/pyjamas http://code.google.com/p/pyjamas http://pyjs.org

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[ANNOUNCE] PyPoppler 0.10.1
by Gian Mario Tagliaretti 13 Aug '09

13 Aug '09

I am pleased to announce version 0.10.1 of the Python bindings for Poppler. It is available at: http://launchpad.net/poppler-python/trunk/development/+download/pypoppler-0… md5: 146ecb7e1049dd9b92478d61c148829e PyPoppler 0.10.1 (Aug 13 2009) ================================== o Support for accessing Action fields (Daniel Jacobs) o Bug #397850 AnnotMapping/Annot implementation incomplete (Gian) o Update configure.ac to work with libtool 2.x (Gian) o Update aclocal.m4 (Gian) o Ignore some more files automatically created by libtool (Gian) Blurb: ====== Poppler[1] is a PDF rendering library based on the xpdf-3.0 code base. PyPoppler is a wrapper which exposes the poppler API to the python world. It is fairly complete, most of the API are covered. The documentation is actually missing, help wanted :) Like the Poppler library itself, PyPoppler is licensed under the GNU GPL. PyPoppler requires: ===================== o Poppler >= 0.10.0 o PyGObject >= 2.10.1 o PyGTK >= 2.10.0 o PyCairo >= 1.8.4 Bug reports should go to https://launchpad.net/poppler-python [1] http://poppler.freedesktop.org/ cheers -- Gian Mario Tagliaretti GNOME Foundation member gianmt(a)gnome.org

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Announce: Linux Desktop Testing Project (LDTP) 1.7.0 released
by Nagappan Alagappan 13 Aug '09

13 Aug '09

Greetings all, We are proud to announce the release of LDTP 1.7.0. This release features number of important breakthroughs in LDTP as well as in the field of Test Automation. This release note covers a brief introduction on LDTP followed by the list of new features and major bug fixes which makes this new version of LDTP the best of the breed. Useful references have been included at the end of this article for those who wish to hack / use LDTP. About LDTP: Linux Desktop Testing Project is aimed at producing high quality test automation framework (C / Python) and cutting-edge tools that can be used to test Linux Desktop and improve it. It uses the Accessibility libraries to poke through the application's user interface. The framework also has tools to record test-cases based on user events in the interface of the application which is under testing. We strive to help in building a quality desktop. LDTP NEWS Mago project uses LDTP - http://mago.ubuntu.com GLOM uses LDTP - http://git.gnome.org/cgit/glom/tree/ldtp/ Whats new in this release: Get the window uptime, maximize, minimize, close, activate all or any given window name are some of the noticable new APIs in this release. Generate key event function now uses xmodmap to determine the current local keyboard and generates the respective key codes. Bug fixes: 590755 – Keycodes mismatch using generatekeyevent from python-ldtp 586655 – typo hasstate example with more one state separator '+' instead of ',' 587614 – Method to measure how long a window is showing up 588674 – It would be nice if doesrowexist would look for partial matches 587456 – checkrow action fails on tree table cell 583021 – If an application changes a context, it is no longer found by LDTP 588819 – 'import ldtp' freezes interpreter 589898 – local variable 'gobject' referenced before assignment 586291 – Subsequent tests fail when first one registers callback handlers 586657 – Imporve user experience getallstates match for defined state constants Special thanks to Arvind Patil <apatil at vmware.com>, Ara Pulido <ara at ubuntu.com>, Guofu Xu <Guofu.Xu at access-company.com>, nouar garcia-mardmabek <nouar.garcia at sun.com>, José Luis Segura Lucas <josel.segura at gmx.es>, Tim Sun <tim.miao at sun.com>, Anupa Kamath <anupak at vmware.com>, Paul Larson <Paul.Larson at canonical.com>, Murray Cumming <murrayc at murrayc.com>, Armin Burgmeier <armin at arbur.net>, New API addition: Window maximize, minimize, close, activate APIs using python wnck module Download source tarball - http://download.freedesktop.org/ldtp/1.x/1.7.x/ldtp-1.7.0.tar.gz Binary (openSUSE / Ubuntu / Fedora / Debian / RHEL / CentOS / Mandriva) - http://download.opensuse.org/repositories/home:/anagappan/ (Just scheduled in openSUSE build service, might take time to complete depending upon the server load) Eitan Isaacson <eitan at ascender.com> has done a massive work on LDTPv2, a complete rewrite of LDTP in python using pyatspi, available through http://cgit.freedesktop.org/ldtp/ldtp2/tree/ References: For detailed information on LDTP framework and latest updates visit http://ldtp.freedesktop.org For information on various APIs in LDTP including those added for this release can be got from http://ldtp.freedesktop.org/user-doc/index.html To subscribe to LDTP mailing lists, visit http://ldtp.freedesktop.org/wiki/Mailing_20list IRC Channel - #ldtp on irc.freenode.net Thanks Nagappan -- Linux Desktop (GUI Application) Testing Project - http://ldtp.freedesktop.org http://nagappanal.blogspot.com

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Python-announce-list August 2009