🌐 Mailman 3 November 2009 - Python-announce-list - python.org

py.test-1.1.1: compat fixes, setuptools-plugin registration
by holger krekel Nov. 24, 2009

Nov. 24, 2009

py.test/pylib 1.1.1: bugfix release, setuptools plugin registration -------------------------------------------------------------------------------- This is a compatibility fixing release of pylib/py.test to work better with previous 1.0.x test code bases. It also contains fixes and changes to work with `execnet>=1.0.0`_ to provide distributed testing and looponfailing testing modes. py-1.1.1 moreover introduces a new mechanism for registering plugins via setuptools. What is pylib/py.test? ----------------------- py.test is an advanced automated testing tool working with Python2, Python3 and Jython versions on all major operating systems. It has an extensive plugin architecture and can run many existing common Python test suites without modification. Moreover, it offers some unique features not found in other testing tools. See http://pytest.org for more info. The pylib provides local and svn filesystem Path objects installs some developer-oriented command line tools. See http://pylib.org for more info. thanks to all who helped and gave feedback, have fun, holger (http://twitter.com/hpk42) .. _`execnet>=1.0.0`: http://codespeak.net/execnet Changes between 1.1.1 and 1.1.0 ===================================== - introduce automatic plugin registration via 'pytest11' entrypoints via setuptools' pkg_resources.iter_entry_points - fix py.test dist-testing to work with execnet >= 1.0.0b4 - re-introduce py.test.cmdline.main() for better backward compatibility - svn paths: fix a bug with path.check(versioned=True) for svn paths, allow '%' in svn paths, make svnwc.update() default to interactive mode like in 1.0.x and add svnwc.update(interactive=False) to inhibit interaction. - refine distributed tarball to contain test and no pyc files - try harder to have deprecation warnings for py.compat.* accesses report a correct location ----- End forwarded message ----- --

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execnet-1.0.0: connecting (groups of) Python interpreters
by holger krekel Nov. 24, 2009

Nov. 24, 2009

Hi all, just uploaded execnet-1.0.0 to PyPI, a standalone-no-dependency package for elastic Python code distribution. execnet enables zero-install ad-hoc instantiation of local or remote Python processes. It establishes channels for basic data communication using a simple serialization scheme that works well across Python2.4, 2.5, 2.6, 3.1 and Jython interpreters. execnet is extensively used for testing purposes, for distributed computing scenarios and for sysadmin tasks. execnet-1.0.0 (compared to 1.0.0b3) has bug fixes, new tested examples and introduces execnet.Group for managing a dynamic bunch of hosts. See the improved docs http://codespeak.net/execnet/ and below the changelog. I am bound to improve and develop execnet further and thus am very interested in feedback and suggestions. cheers, holger 1.0.0 -------------------------------- * introduce execnet.Group for managing gateway creation and termination. Introduce execnet.default_group through which all "global" calls are routed. cleanup gateway termination. All Gateways get an id through which they can be retrieved from a group object. * deprecate execnet.XYZGateway in favour of direct makegateway() calls. * refine socketserver-examples, experimentally introduce a way to indirectly setup a socket server ("installvia") through a gateway url. * refine and automatically test documentation examples 1.0.0b3 -------------------------------- * fix EXECNET_DEBUG to work with win32 * add support for serializing longs, sets and frozensets (thanks Benjamin Peterson) * introduce remote_status() method which on the low level gives information about the remote side of a gateway * disallow explicit close in remote_exec situation * perform some more detailed tracing with EXECNET_DEBUG 1.0.0b2 -------------------------------- * make internal protocols more robust against serialization failures * fix a seralization bug with nested tuples containing empty tuples (thanks to ronny for discovering it) * setting the environment variable EXECNET_DEBUG will generate per process trace-files for debugging 1.0.0b1 ---------------------------- * added new examples for NumPy, Jython, IronPython * improved documentation * include apipkg.py for lazy-importing * integrated new serializer code from Benjamin Peterson * improved support for Jython-2.5.1 1.0.0alpha2 ---------------------------- * improve documentation, new website * use sphinx for documentation, added boilerplate files and setup.py * fixes for standalone usage, adding boilerplate files * imported py/execnet and made it work standalone

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PyCon registration is open
by Catherine Devlin Nov. 24, 2009

Nov. 24, 2009

PyCon registration has opened! http://us.pycon.org/2010/registration/ Registering early gets you early-bird registration rates, guarantees you the tutorials you want, and helps the PyCon volunteers plan better. Scheduled talk and tutorial lists: http://us.pycon.org/2010/conference/talks/ http://us.pycon.org/2010/tutorials/ We'll see you in Atlanta! Spread the word! -- - Catherine http://catherinedevlin.blogspot.com/ *** PyCon * Feb 17-25, 2010 * Atlanta, GA * us.pycon.org ***

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ANN: SfePy 2009.4 released
by Robert Cimrman Nov. 24, 2009

Nov. 24, 2009

I am pleased to announce release 2009.4 of SfePy. Description ----------- SfePy (simple finite elements in Python) is a software, distributed under the BSD license, for solving systems of coupled partial differential equations by the finite element method. The code is based on NumPy and SciPy packages. Mailing lists, issue tracking, git repository: http://sfepy.org Home page: http://sfepy.kme.zcu.cz New documentation site: http://docs.sfepy.org/doc Many thanks to Logan Sorenson for the new documentation contents, and Vladimir Lukes for setting up the server. Highlights of this release -------------------------- - unified handling of user-defined functions (for defining subdomains, heterogeneous material properties, boundary conditions etc.) - greatly improved postprocessing and visualization capabilities, namely: - support for file sequences (evolutionary simulations) - animations (using ffmpeg) - automatic scalar bars - sfepy_gui.py: Mayavi2-based GUI to launch simulations Major improvements ------------------ Apart from many bug-fixes, let us mention: - quasistatic time stepping - graphical logging: - dynamic adding of data groups (new axes) to Log and ProcessPlotter - linear algebra: - reversed Cuthill-McKee permutation algorithm, graph in-place permutation - setting of parameter variables by a user-defined function - new tests and terms For more information on this release, see http://sfepy.googlecode.com/svn/web/releases/2009.4_RELEASE_NOTES.txt (full release notes, rather long). Best regards, Robert Cimrman

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ANN: UliPad 4.0 released!
by limodou Nov. 24, 2009

Nov. 24, 2009

UliPad is a flexible editor, based on wxPython. It's has many features,just like:class browser, code auto-complete, html viewer, directory browser, wizard, etc. The main feature is the usage of mixin. This makes UliPad can be extended easily. So you can write your own mixin or plugin, or simple script, these can be easy and seamless integrated with UliPad.Features - *Cross platform* - based on wxPython, so it can run anywhere that wxPython works, such as: Windows, Linux. - Unicode support. - *Most features of wxStyledTextCtrl(Scintilla)* - Syntax highlighting, support Python, c/c++, html, plain text - Folding - Brace Matching - ... - *Extended selection* - Extended word selection -- You can press Ctrl+`MouseDoubleClick` to select a word including '.' - Matched selection -- Select text in quoted chars like: (), [], {}, '', "". For example: a string just like: def func(self, 'This is a test'): ^ The '^' char represents caret position in above line. If you press Ctrl+E, you will select the whole text in (), i.e. "self, 'This is a test'". Something more in Selection Menu. - *Other editing extension* - Duplicating text -- Just like Vim Ctrl+V, Ctrl+P, and more. You can duplicate above or below char, word, line which match the leading chars. - Quoting text -- Add some quoted chars before and after selected text, just as: "", '', (), [], {}, and customized string, etc. - Text convertion and view -- python -> html, reStructured Text -> html, textile -> html, and you can output or view the html text in message window, or html view window, or replace the selected text. - Utf-8 encoding auto detect - Changing document encoding - Auto backup - Last session support -- It'll save all the filenames as closed, and reopen the files as next started. - Smart judge the indent char -- It'll auto guess the indent char, and sets it. - Finding in files - Bookmark supports - *Python support* - built-in python interactive window based on PyShell, support Unicode - Auto completion - Function syntax calltips - Run, run with argument, stop python source - Auto change current path - Python class browser - Syntax and PEP8 style checking，also supply a pylint plugin. - *Code snippets* You can manage your code snippets with categories, and each category can have many items. Every item will represent a code snippet. You can insert an item just by double-clicking on it. It even supports importing and exporting. - *Simple project support* Can create a special file _project, so every file and folder under the folder which has the _project can be considered as a whole project. - *Extension mechanism* - Script -- You can write easy script to manipulate the all resource of UliPad, just like: text conversion, etc. - Plugin -- Customized function. More complex but more powerful. Can easily merge with UliPad, and can be managed via menu. - Shell command -- Add often used shell commands, and execute them. - *Ftp support* You can edit remote files through ftp. You can add, rename, delete, upload, download file/directory. - *Multilanguage support* Currently supports 4 languages: English, Spanish, Simplified Chinese and Traditional Chinese, which can be auto-detected. - *Ships many plugins* (must be configed as used them before) - Django support plugin - Batch rename files plugin - Collaborative Programming support plugin, names as *pairprog*. - Mp3 player plugin - Spell check plugin - wizard plugin - Text to speech(windows only) plugin - ... - *Shipped scripts* - You can find them in ($UliPadInstalled)/scripts. - *Wizard* You can make your own wizard template. The wizard can input user data, combine with template, and output the result. And wizard also support code framework created. This feature will help you improving coding efficiency. - *Direcotry Browser* Browse multiple directories, and you can really add, delete, rename directories and files. Double click will open the file in Editor window. - *`AutoComPlete`(acp)* Suport user autocomplete file, it can help to input code very helpful and functional. - *Column Editing Mode* You can select multilines, and then set a column mode region, so in any line of this region, if you enter a character, other lines will also add this character. If you want to deal with multilines as a similar mode, this functionality will be very handy. - *Smart Navigation* UliPad can remember the visit order of your opened files, and you can go back or go forward in these files. - *Live regular expression searching* You can type some regular expression on the fly, and see the result dynamiclly. - *Spell check plugin* Need to install PyEnchant module. - *Collaborative Programming* Multi-user can modify some files at the same time. You should enable * pairprog* plugin. - *Todo Supports* Auto finds todos and supports several kind of formats. - *Multi-View Supports* User can open a document in multi views, for example in left pane or bottom pane. - *Version Control Support* - svn support. Now you can use svn in UliPad to update, checkout, commit, etc. Links - Project: http://code.google.com/p/ulipad - source version: http://ulipad.googlecode.com/files/ulipad.4.0.zip - windows exe version: http://ulipad.googlecode.com/files/ulipad.4.0.py25.exe - maillist: http://groups.google.com/group/ulipad - ulipad snippets site: http://ulipad.appspot.com (hosted by GAE) Hope you enjoy it. -- I like python! UliPad <<The Python Editor>>: http://code.google.com/p/ulipad/ UliWeb <<simple web framework>>: http://uliwebproject.appspot.com My Blog: http://hi.baidu.com/limodou

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Cython 0.12 released
by Robert Bradshaw Nov. 23, 2009

Nov. 23, 2009

Cython 0.12 has been officially released. You can get it directly from http://cython.org/ or at http://pypi.python.org/pypi/Cython/. This is the culmination of many months of work, including a mergeback of the experimental branch (after much testing) that was started earlier this year. == New features == - Type inference with the infer_types directive - Seamless C++ complex support - Fast extension type instantiation using the normal Python meme obj = MyType.__new__(MyType). - Improved support for Py3.1 - Cython now runs under Python 3.x using the 2to3 tool - unittest support for doctests in Cython modules - Optimised handling of C strings (char*): for c in cstring[2:50] and cstring.decode() - Looping over c pointers: for i in intptr[:50]. - Many other optimisation, e.g. enumerate() loops, parallel swap assignments (a,b = b,a), and unicode.encode() - More complete numpy.pxd - pyximport improvements - cython_freeze improvements - Many bug fixes There has also been a lot of work behind the scenes to improve temp handling, streamline writing optimizations, and cleanup code in general. A list of tickets closed can be found at http://trac.cython.org/cython_trac/query?group=component&milestone=0.12 == Semantic Changes == This revision to introduces some backwards incompatible changes to more closely align Cython with the Python language, and unify C and Python types to pave the way for seamless type inference. They are: - Division involving negative C integers now follow Python semantics rather than C semantics. Division by zero also now raises a Python exception. See [[enhancements/division|CEP 516]] This has been optional for several releases, and is now the default. It can be disabled on a per-function or per-file basis, or from the command line (see [[enhancements/compilerdirectives]]) - Unmarked strings are now of type str in both Python 2.x (becoming byte strings) and Python 3.x (becoming unicode strings). Byte strings may be marked as b"..." and unicode strings as u"..." no matter what the runtime environment. See [[enhancements/stringliterals|CEP 108]] - The boolean expressions x or y and x and y return either x or y just like in Python, even when x and y are c types. This means that the types must be compatible. Previously x and y were coerced into truth values first, and either 1 or 0 was returned. == Contributors to this release == * Peter Alexander * Stefan Behnel * Robert Bradshaw * David Cournapeau * Lisandro Dalcin * Mark Lodato * Sturla Molden * Dag Sverre Seljebotn * Holger Thanks also to everybody who's helping us out in our discussions on the mailing list.

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yappi v0.3
by k3xji Nov. 22, 2009

Nov. 22, 2009

Hi, yappi(yet another python profiler) is a Python Profiler with multithreading support. This is the last beta version with some major changes and bugfixes: v0.3 Changes --------- [+] yappi did not compile out of box on VS2008. Fix the compile issues. (Thanks to Kevin Watters) [+] tidy up stat formatting code. that's previously messy. [+] BUGFIX:application total time is calculated wrong. [+] BUGFIX:change some int's to long long's to prevent simple integer overflows. [+] show profiler status. [+] show memory usage of the yappi itself. [+] show thread class name in the thread stats. [+] make thread/profiler stats column separated. [+] big endian support for core hash function. [+] BUGFIX: CURRENTCTX macro can return NULL on rare occassions, handle that. [+] BUGFIX: Shows wrong thread class name as we call it in the profile_thread. [+] OPTIMIZATION:some hashtable enhancements are done. For documentation and download see: http://code.google.com/p/yappi/ -- twitter.com/sumercip Sumer Cip

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Python Ireland's Christmas meetup
by Vicky Lee Nov. 22, 2009

Nov. 22, 2009

Hi All, When: Wed 9th Dec, 18:30 Where: Bull and Castle, Christchurch, D2 What: - Food will be provided, please RSVP<https://spreadsheets.google.com/viewform?formkey=dDlHTk9WcGhpWFZPekFhdTRWb1…>by 6th Dec so we can ensure that we have enough platters. - Raffle with prizes thanks to O'Reilly and Apress. Proceeds will go to Python Software Foundation More detail - http://www.python.ie/meetup/2009/python_ireland_christmas_meetup/ Cheers, /// Vicky ~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~ http://irishbornchinese.com ~~ ~~ http://www.python.ie ~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~

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pyspread 0.0.12a released
by Martin Manns Nov. 21, 2009

Nov. 21, 2009

Pyspread is getting close to the first Beta. This new release should work with Windows as well as with Linux. About ----- Pyspread is a cross-platform Python spreadsheet application. It is based on and written in the programming language Python. Instead of spreadsheet formulas, Python expressions are entered into the spreadsheet cells. Each expression returns a Python object that can be accessed from other cells. These objects can represent anything including lists or matrices. Pyspread runs on Linux, Windows and *nix platforms with GTK+ support. I have reports that it works with MacOS X as well. Homepage -------- http://pyspread.sf.net New features in 0.0.12a ----------------------- * pys file support more secure * ODF file support removed * Left and right alignment to cell attributes added * Custom grid & cell drawing on refresh added * Save functionality for row and column size added * Problem with update of cells that contain strings, lists solved * Frozen cells toolbar update fixed * Windows missing cell background bug removed Martin

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2to3c: an implementation of Python's 2to3 for C code
by David Malcolm Nov. 21, 2009

Nov. 21, 2009

I've written a tool to help people port their C python extensions from Python 2 to Python 3. It uses the Coccinelle tool [1] to apply a series of "semantic patches" to .c files. I also had to code one of the refactorings in python with regular expressions (due to the need to manipulate preprocessor macros containing commas). Sample session, running on a tarball of dbus-python: [david@brick 2to3]$ ./2to3c --help Usage: 2to3c [options] filenames... Options: -h, --help show this help message and exit -w, --write Write back modified files [david@brick 2to3]$ ./2to3c ../../python3/packaging/modules/by-hand/dbus-python/devel/dbus-python-0.83.0/_dbus_bindings/*.c > dbus-python.patch [david@brick 2to3]$ diffstat dbus-python.patch abstract.c | 28 ++---- bus.c | 4 bytes.c | 16 +-- conn.c | 7 - containers.c | 21 ++-- float.c | 6 - generic.c | 4 int.c | 31 ++----- libdbusconn.c | 5 - mainloop.c | 3 message-append.c | 4 message.c | 17 +-- module.c | 243 ++++++++++++++++++++++++++++++++++++++++++++----------- pending-call.c | 3 server.c | 7 - signature.c | 6 - string.c | 9 -- 17 files changed, 267 insertions(+), 147 deletions(-) [david@brick 2to3]$ head -n 30 dbus-python.patch --- ../../python3/packaging/modules/by-hand/dbus-python/devel/dbus-python-0.83.0/_dbus_bindings/abstract.c.orig +++ ../../python3/packaging/modules/by-hand/dbus-python/devel/dbus-python-0.83.0/_dbus_bindings/abstract.c @@ -54,7 +54,7 @@ if (!vl_obj) return 0; - return PyInt_AsLong(vl_obj); + return PyLong_AsLong(vl_obj); } dbus_bool_t @@ -76,7 +76,7 @@ } } else { - PyObject *vl_obj = PyInt_FromLong(variant_level); + PyObject *vl_obj = PyLong_FromLong(variant_level); if (!vl_obj) { Py_DECREF(key); return FALSE; @@ -127,7 +127,7 @@ Py_DECREF(key); if (!value) - return PyInt_FromLong(0); + return PyLong_FromLong(0); Py_INCREF(value); return value; } You can see the full patch it generated here: http://dmalcolm.fedorapeople.org/dbus-python.patch It hasn't done all of the work, there are some places involving the preprocessor where it didn't quite generate correct code, and there are some remaining issues - for example, a human is going to have to decide whether the strings are bytes or unicode. However, I think this ought to save a lot of time: it takes care of a lot of the tedious parts of such patches. The public git repo can be seen here: http://fedorapeople.org/gitweb?p=dmalcolm/public_git/2to3c.git;a=tree You should be able to download it by cloning it thus: git clone git://fedorapeople.org/home/fedora/dmalcolm/public_git/2to3c.git You'll need coccinelle installed; you can install it on Fedora using: yum install coccinelle Patches most welcome! I intend to license this under LGPLv2.1, but am happy to relicense as the Python core development community sees fit. Dave [1] http://coccinelle.lip6.fr/

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