Mailman 3 December 2010 - Python-announce-list

RedNotebook 1.1.2
by Jendrik Seipp Dec. 26, 2010

Dec. 26, 2010

RedNotebook 1.1.2 has been released. You can get the tarball, the Windows installer and links to distribution packages at http://rednotebook.sourceforge.net/downloads.html What is RedNotebook? -------------------- RedNotebook is a **graphical journal** and diary helping you keep track of notes and thoughts. It includes a calendar navigation, customizable templates, export functionality and word clouds. You can also format, tag and search your entries. RedNotebook is available in the repositories of most common Linux distributions and a Windows installer is available. It is written in Python and uses GTK+ for its interface. What's new? ----------- * Add fullscreen mode (F11) * Highlight all found occurences of the searched word (LP:614353) * Highlight mixed markups (**__Bold underline__**) * Highlight structured headers (=Part=, ==Subpart==, ===Section===, ====Subsection====, =====Subsubsection=====) * Document structured headers * Highlight ``, "", '' * Write documentation about ``, "", '' * Let the preview and edit button have the same size * Fix: Correctly highlight lists (LP:622456) * Fix: Do not set maximized to True when sending RedNotebook to the tray (LP:657421) * Fix: Add Ctrl-P shortcut for edit button (LP:685609) * Fix: Add "\" to the list of ignored chars for word clouds * Fix: Escape characters before adding results to the search list * Fix: Local links with whitespace in latex * Windows: Fix opening linked files * Windows: Do not center window to prevent alignment issues * Windows: Fix image preview (LP:663944) * Internal: Replace tabs by whitespace in source code * Many translations updated Cheers, Jendrik

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faulthandler 1.0: display the Python backtrace on a crash
by Victor Stinner Dec. 24, 2010

Dec. 24, 2010

faulthandler is an handler for SIGSEGV, SIGFPE, SIGBUS and SIGILL signals: display the Python backtrace on a crash. Just import the module to enable it. https://github.com/haypo/faulthandler/wiki http://pypi.python.org/pypi/faulthandler/ It works on Windows, Linux and FreeBSD with Python 2.6, 2.7, 3.1 and 3.2. I should work with Python 2.5 and on other OSes. Tell me if the module works on your OS / Python version. Dummy example of a segmentation fault on Linux: $ python >>> import faulthandler >>> faulthandler.isenabled() True >>> faulthandler.sigsegv() Fatal Python error: Segmentation fault Traceback (most recent call first): File "<stdin>", line 1 in <module> Segmentation fault Victor Stinner

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ANNOUNCE: PyGTK All-in-one Installer 2.22.5
by Dieter Verfaillie Dec. 24, 2010

Dec. 24, 2010

We are pleased to announce release 2.22.5 of the PyGTK All-in-one installer for Windows. More information can be found in the README file at: https://github.com/dieterv/pygtk-installer#readme * What is it? ============= The PyGTK All-in-one installer provides an alternative installation method for PyGTK users on Windows. It bundles PyGTK, PyGObject, PyCairo, PyGtkSourceView2, PyGooCanvas, PyRsvg, the gtk+-bundle and Glade in one handy installer. Currently 32 bit Python 2.6 and 2.7 versions are supported on Windows XP and up. Some screenshots can be seen at: https://github.com/dieterv/pygtk-installer/wiki * Where to get it? ================== binaries: http://download.gnome.org/binaries/win32/pygtk/2.22/pygtk-all-in-one-2.22.5… md5sum : 3acbd0ef3c13c1112d6f119bdb076ac6 size : 32,3M http://download.gnome.org/binaries/win32/pygtk/2.22/pygtk-all-in-one-2.22.5… md5sum : 7a0272a0bd5c857b994f2eed92af199f size : 32,3M (33091012) source code: https://github.com/dieterv/pygtk-installer/tree/release-2.22.5 https://github.com/dieterv/pygtk-installer/tarball/release-2.22.5 https://github.com/dieterv/pygtk-installer/zipball/release-2.22.5 Enjoy! The PyGTK Team

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cx_Freeze 4.2.2
by Anthony Tuininga Dec. 24, 2010

Dec. 24, 2010

What is cx_Freeze? cx_Freeze is a set of scripts and modules for freezing Python scripts into executables in much the same way that py2exe and py2app do. Unlike these two tools, however, cx_Freeze is cross platform and should work on any platform that Python itself works on. Where do I get it? http://cx-freeze.sourceforge.net What's new? Changes from 4.2.1 to 4.2.2 1) Added support for namespace packages which are loaded implicitly upon startup by injection into sys.modules. 2) Added support for a Zope sample which makes use of namespace packages. 3) Use the Microsoft compiler on Windows for Python 2.6 and up as some strange behaviors were identified with Python 2.7 when compiled using mingw32. 4) Eliminate warning about -mwindows when using the Microsoft compiler for building the Win32GUI base executable. 5) Added support for creating version resources on Windows. 6) Ensure that modules that are not truly required for bootstrapping are not included in the frozen modules compiled in to the executable; otherwise, some packages and modules (such as the logging package) cannot be found at runtime. This problem only seems to be present in Python 2.7.1 but it is a good improvement for earlier releases of Python as well. 7) Added support for setting the description for Windows services. 8) Added hook for using the widget plugins which are part of the PyQt4.uic package. 9) Added additional hooks to remove spurious errors about missing modules and to force inclusion of implicitly imported modules (twitter module and additional submodules of the PyQt4 package). 10) Fixed support for installing frozen executables under Python 3.x on Windows. 11) Removed optional import of setuptools which is not a complete drop-in replacement for distutils and if found, replaces distutils with itself, resulting in some distutils features not being available; for those who require or prefer the use of setuptools, import it in your setup.py.

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Python & WebSphere MQ LinkedIn group created
by Dariusz Suchojad Dec. 23, 2010

Dec. 23, 2010

Hello, I'd like to invite you to join the LinkedIn's "Python & WebSphere MQ" group [1] which I've just created. The community of programmers using both Python and WebSphere MQ is ever growing and I believe it's time for Python & WebSphere MQ professionals to have their place on LinkedIn as well. Users of PyMQI [1] and Spring Python's JMS features [2] are particularly welcome but if you're still wavering over using Python for WebSphere MQ programming then you're more than encouraged to join in! [1] http://www.linkedin.com/groups?gid=3726448 [2] http://packages.python.org/pymqi/ [3] http://springpython.webfactional.com/1.2.x/sphinx/html/jms.html cheers, -- Dariusz Suchojad

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cx_Logging 2.1
by Anthony Tuininga Dec. 23, 2010

Dec. 23, 2010

What is cx_Logging? cx_Logging is a Python extension module which operates in a fashion similar to the logging module that ships with Python 2.3 and higher. It also has a C interface which allows applications to perform logging independently of or in tandem with Python. Where do I get it? http://cx-logging.sourceforge.net What's new? 1) Added support for Python 2.7 and Python 3.1. 2) Only perform the repr() calculation if the logging level is at the level that a log message needs to be written in order to improve performance. 3) Ensure that stdcall calling convention is used on Windows across the board so that other applications which assume stdcall work as expected without extra work. 4) Include export symbols to make the Microsoft compiler on Windows export symbols; otherwise, it ignores the request when using the stcall convention. 5) Fix determination of import library for the Microsoft compiler. 6) Expose WriteMessageForPython() and IsLoggingAtLevelForPython() which are needed by ceODBC. 7) Eliminate segmentation fault if unicode string cannot be encoded. 8) Remove situation where a failure in writing to the log file was masked. 9) Fix support for AIX as suggested by Tamas Gulacsi.

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web2py 1.91.4 - new LGPL3 license
by Massimo Di Pierro Dec. 23, 2010

Dec. 23, 2010

Thanks to our 100+ contributors. This is our best release ever. [download here](http://www.web2py.com/examples/default/download). ------ Free open source full-stack framework for rapid development of fast, scalable, secure and portable database-driven web-based applications. Written and programmable in Python. LGPLv3 License ------ Over time we added lots of new features. Integrated Database Abstraction Layer with support for SQLite, PostgreSQL, MySQL, MSSQL, FireBird, Oracle, IBM DB2, Informix, Ingres, and Google App Engine (CouchDB support experimental). Automatic migrations (both create table and alter table). Wed based IDE with [wizard](http://www.web2py.com/demo_admin/wizard/index), [designer](http://www.web2py.com/demo_admin/default/design/demo_app1), [editor](http://www.web2py.com/demo_admin/default/edit/demo_app1/models/db.p…, [internationalization interface](http://www.web2py.com/demo_admin/default/edit_language/demo_app1…, database administrative interface, [testing](http://www.web2py.com/demo_admin/default/test/demo_app1), [ticketing system](http://www.web2py.com/demo_admin/default/errors/demo_app1), shell, mercurial integration and [ready layouts](http://www.web2py.com/layouts) and plugins. Powerful Role Based Access Control and integration with OpenID, Oauth, CAS, PAM, Facebook, Linkedin, Google, Twitter, Janrain. API to create web services (json, xml, rss, jsonrpc, xmlrpc, amfrpc, soap) generate RTF, Latex and PDF, send SMS services and accept Credit Card payments with AuthorizeNet and Google checkout [via plugin](http://web2py.appspot.com/plugin_checkout/default/checkout) Authomatic form generation and processing. [Very secure](http://www.pythonsecurity.org/wiki/web2py/): granular access control, XSS prevention, SQL-Injection prevention, form validation and url validation, csrf prevention, hashed password, signed urls, HTML sanitization. The most pythonic template language with full python support + include/extend/blocks. [Lots of users](http://groups.google.com/group/web2py), [many apps deployed in production ](http://www.web2py.com/poweredby), and many [example apps](http://web2py.com/appliances). [Excellent online documentation](http://web2py.com/book) (537 pages when printed) In the last year the database abstraction layer and the template language have been completely re-written (each implemented in one file each, [template.py](http://code.google.com/p/web2py/source/browse/gluon/template.p… and [dal.py](http://code.google.com/p/web2py/source/browse/gluon/dal.py)) so can be used with other python frameworks. All in one package without dependencies. Does not require installation and can run off a USB stick (like having a Python based Heroku in your pocket). Runs on CPython 2.4-2.7, Jython and PyPy (experimental). Runs on Google App Engine. [Professional support and long term support agreements](http://experts4solutions.com) for those who want/need it. The license changed today from GPL2+exception to LGPL3. You can release your web2py apps commercially and closed source (python bytecode compiled).

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ANNOUNCE: omniORB 4.1.5 and omniORBpy 3.5
by Duncan Grisby Dec. 22, 2010

Dec. 22, 2010

omniORB 4.1.5 and omniORBpy 3.5 are now available. omniORB is a high performance, robust CORBA implementation for C++; omniORBpy is a version for Python. For more details, see http://omniorb.sourceforge.net/ These are primarily bug fix releases, with a number of minor new features, including: - Incoming SSL connections can time out waiting for SSL_accept to complete. - Ability to disable longdouble support during compilation. - Support for building with the newest versions of Cygwin. - Python interceptors can receive peer address and identity. - Python exceptions can be pickled. Files are available for download from SourceForge: https://sourceforge.net/projects/omniorb/files/omniORB/omniORB-4.1.5/ https://sourceforge.net/projects/omniorb/files/omniORBpy/omniORBpy-3.5/ Source packages are available now. Windows binaries for various VC++ and Python versions will be available shortly. Enjoy! Duncan. -- -- Duncan Grisby -- -- duncan(a)grisby.org -- -- http://www.grisby.org --

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ANN: carray released
by Francesc Alted Dec. 22, 2010

Dec. 22, 2010

===================== Announcing carray 0.3 ===================== What's new ========== A lot of stuff. The most outstanding feature in this version is the introduction of a `ctable` object. A `ctable` is similar to a structured array in NumPy, but instead of storing the data row-wise, it uses a column-wise arrangement. This allows for much better performance for very wide tables, which is one of the scenarios where a `ctable` makes more sense. Of course, as `ctable` is based on `carray` objects, it inherits all its niceties (like on-the-flight compression and fast iterators). Also, the `carray` object itself has received many improvements, like new constructors (arange(), fromiter(), zeros(), ones(), fill()), iterators (where(), wheretrue()) or resize mehtods (resize(), trim()). Most of these also work with the new `ctable`. Besides, Numexpr is supported now (but it is optional) in order to carry out stunningly fast queries on `ctable` objects. For example, doing a query on a table with one million rows and one thousand columns can be up to 2x faster than using a plain structured array, and up to 20x faster than using SQLite (using the ":memory:" backend and indexing). See 'bench/ctable-query.py' for details. Finally, binaries for Windows (both 32-bit and 64-bit) are provided. For more detailed info, see the release notes in: https://github.com/FrancescAlted/carray/wiki/Release-0.3 What it is ========== carray is a container for numerical data that can be compressed in-memory. The compression process is carried out internally by Blosc, a high-performance compressor that is optimized for binary data. Having data compressed in-memory can reduce the stress of the memory subsystem. The net result is that carray operations may be faster than using a traditional ndarray object from NumPy. carray also supports fully 64-bit addressing (both in UNIX and Windows). Below, a carray with 1 trillion of rows has been created (7.3 TB total), filled with zeros, modified some positions, and finally, summed-up:: >>> %time b = ca.zeros(1e12) CPU times: user 54.76 s, sys: 0.03 s, total: 54.79 s Wall time: 55.23 s >>> %time b[[1, 1e9, 1e10, 1e11, 1e12-1]] = (1,2,3,4,5) CPU times: user 2.08 s, sys: 0.00 s, total: 2.08 s Wall time: 2.09 s >>> b carray((1000000000000,), float64) nbytes: 7450.58 GB; cbytes: 2.27 GB; ratio: 3275.35 cparams := cparams(clevel=5, shuffle=True) [0.0, 1.0, 0.0, ..., 0.0, 0.0, 5.0] >>> %time b.sum() CPU times: user 10.08 s, sys: 0.00 s, total: 10.08 s Wall time: 10.15 s 15.0 ['%time' is a magic function provided by the IPyhton shell] Please note that the example above is provided for demonstration purposes only. Do not try to run this at home unless you have more than 3 GB of RAM available, or you will get into trouble. Resources ========= Visit the main carray site repository at: http://github.com/FrancescAlted/carray You can download a source package from: http://carray.pytables.org/download Manual: http://carray.pytables.org/manual Home of Blosc compressor: http://blosc.pytables.org User's mail list: carray(a)googlegroups.com http://groups.google.com/group/carray Share your experience ===================== Let us know of any bugs, suggestions, gripes, kudos, etc. you may have. ---- Enjoy! -- Francesc Alted

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[RELEASED] Python 3.2 beta 2
by Georg Brandl Dec. 21, 2010

Dec. 21, 2010

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 On behalf of the Python development team, I'm happy to announce the second beta preview release of Python 3.2. Python 3.2 is a continuation of the efforts to improve and stabilize the Python 3.x line. Since the final release of Python 2.7, the 2.x line will only receive bugfixes, and new features are developed for 3.x only. Since PEP 3003, the Moratorium on Language Changes, is in effect, there are no changes in Python's syntax and built-in types in Python 3.2. Development efforts concentrated on the standard library and support for porting code to Python 3. Highlights are: * numerous improvements to the unittest module * PEP 3147, support for .pyc repository directories * PEP 3149, support for version tagged dynamic libraries * PEP 3148, a new futures library for concurrent programming * PEP 384, a stable ABI for extension modules * PEP 391, dictionary-based logging configuration * an overhauled GIL implementation that reduces contention * an extended email package that handles bytes messages * countless fixes regarding bytes/string issues; among them full support for a bytes environment (filenames, environment variables) * many consistency and behavior fixes for numeric operations * a sysconfig module to access configuration information * a pure-Python implementation of the datetime module * additions to the shutil module, among them archive file support * improvements to pdb, the Python debugger For a more extensive list of changes in 3.2, see http://docs.python.org/3.2/whatsnew/3.2.html To download Python 3.2 visit: http://www.python.org/download/releases/3.2/ Please consider trying Python 3.2 with your code and reporting any bugs you may notice to: http://bugs.python.org/ Enjoy! - -- Georg Brandl, Release Manager georg at python.org (on behalf of the entire python-dev team and 3.2's contributors) -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iEYEARECAAYFAk0Q/aAACgkQN9GcIYhpnLDf8gCgkLGAsE+T3R505jZc1RxXDYsa NSsAnRGaFjeTm9o2Z5O8FuIzTUG8t1PT =hHzz -----END PGP SIGNATURE-----

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