Mailman 3 August 2012 - Python-announce-list

PyTexas 2012 T-shirt Features Cute Doggies
by Brad Allen 31 Aug '12

31 Aug '12

Also, today is the last day for $25 registration, and the last day for talk proposals. All is explained here, including the cute doggies: http://blog.pytexas.org/2012/08/pytexas-2012-t-shirt-features-cute.html

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[ANN] guiqwt v2.2.0
by Pierre.RAYBAUT＠CEA.FR 31 Aug '12

31 Aug '12

Hi all, I am pleased to announce that `guiqwt` v2.2.0 has been released (http://guiqwt.googlecode.com). Based on PyQwt (plotting widgets for PyQt4 graphical user interfaces) and on the scientific modules NumPy and SciPy, guiqwt is a Python library providing efficient 2D data-plotting features (curve/image visualization and related tools) for interactive computing and signal/image processing application development. The Mercurial repository is now publicly available here: http://code.google.com/p/guiqwt/source/checkout Complete change log is available here: http://code.google.com/p/guiqwt/wiki/ChangeLog Documentation with examples, API reference, etc. is available here: http://packages.python.org/guiqwt/ This version of `guiqwt` includes a demo software, Sift (for Signal and Image Filtering Tool), based on `guidata` and `guiqwt`: http://packages.python.org/guiqwt/sift.html Windows users may even download the portable version of Sift 0.2.6 to test it without having to install anything: http://code.google.com/p/guiqwt/downloads/detail?name=sift-0.2.6-guiqwt-2.2… When compared to the excellent module `matplotlib`, the main advantages of `guiqwt` are: * Performance: see http://packages.python.org/guiqwt/overview.html#performances * Interactivity: see for example http://packages.python.org/guiqwt/_images/plot.png * Powerful signal processing tools: see for example http://packages.python.org/guiqwt/_images/fit.png * Powerful image processing tools: * Real-time contrast adjustment: http://packages.python.org/guiqwt/_images/contrast.png * Cross sections (line/column, averaged and oblique cross sections!): http://packages.python.org/guiqwt/_images/cross_section.png * Arbitrary affine transforms on images: http://packages.python.org/guiqwt/_images/transform.png * Interactive filters: http://packages.python.org/guiqwt/_images/imagefilter.png * Geometrical shapes/Measurement tools: http://packages.python.org/guiqwt/_images/image_plot_tools.png * Perfect integration of `guidata` features for image data editing: http://packages.python.org/guiqwt/_images/simple_window.png But `guiqwt` is more than a plotting library; it also provides: * Framework for signal/image processing application development: see http://packages.python.org/guiqwt/examples.html * And many other features like making executable Windows programs easily (py2exe helpers): see http://packages.python.org/guiqwt/disthelpers.html guiqwt has been successfully tested on GNU/Linux and Windows platforms. Python package index page: http://pypi.python.org/pypi/guiqwt/ Documentation, screenshots: http://packages.python.org/guiqwt/ Downloads (source + Python(x,y) plugin): http://guiqwt.googlecode.com -- Dr. Pierre Raybaut CEA - Commissariat à l'Energie Atomique et aux Energies Alternatives

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[ANN] guidata v1.5.0
by Pierre.RAYBAUT＠CEA.FR 31 Aug '12

31 Aug '12

Hi all, I am pleased to announce that `guidata` v1.5.0 has been released (http://guidata.googlecode.com). Based on the Qt Python binding module PyQt4 (and mostly compatible with PySide), guidata is a Python library generating graphical user interfaces for easy dataset editing and display. It also provides helpers and application development tools for PyQt4. guidata also provides the following features: * guidata.qthelpers: PyQt4 helpers * guidata.disthelpers: cx_Freeze/py2exe helpers (or how to build a self-consistent executable in three lines of code!) * guidata.userconfig: .ini configuration management helpers (based on Python standard module ConfigParser) * guidata.configtools: library/application data management * guidata.gettext_helpers: translation helpers (based on the GNU tool gettext) * guidata.guitest: automatic GUI-based test launcher * guidata.utils: miscelleneous utilities guidata has been successfully tested on GNU/Linux and Windows platforms. This is mostly a maintenance release with a couple of bugfixes and minor new features (see changelog here: http://code.google.com/p/guidata/wiki/ChangeLog). The Mercurial repository is now publicly available here: http://code.google.com/p/guidata/source/checkout The `guidata` documentation with examples, API reference, etc. is available here: http://packages.python.org/guidata/ Python package index page: http://pypi.python.org/pypi/guidata/ Documentation, screenshots: http://packages.python.org/guidata/ Downloads (source + Windows installers): http://guidata.googlecode.com -- Dr. Pierre Raybaut CEA - Commissariat à l'Energie Atomique et aux Energies Alternatives

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ANN: PyNSource - Python UML tool - 1.6 released
by Andy Bulka 31 Aug '12

31 Aug '12

Hi All, Announcing PyNSource 1.6 with numerous new features. http://www.andypatterns.com/index.php/products/pynsource/ Reverse engineer python source code into UML. Version 1.6 - New animated "spring" layout algorithm - Toggle between normal and Ascii UML view - Colour sibling subclasses to understand the relationships in your uml diagram. - Print and Print preview - Persistence - Improved AST based python code parsing - Mac, Windows and Linux compatibility Thanks for your interest. Andy Bulka www.andypatterns.com

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PyTexas: last day for $25 registration, talk proposal
by Brad Allen 30 Aug '12

30 Aug '12

Just wanted to send out this quick reminder--today is the last day for PyTexas $25 registration; starting tomorrow it will cost $50. http://www.pytexas.org/chance/1/register/ Today is also your last day to post your talk proposals. http://www.pytexas.org/chance/1/talks/add/ Btw, there is going to be a PyTexas t-shirt given away with every registration. I've seen advance drafts which are beautiful, drawn and colored by Kat Metgzer, the same artist who did the PyTexas 2010 t-shirt. This evening after work I might be able to post the artwork on the PyTexas blog.

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ANN: PipeController v0.1 released: Python tool to experiment with simulating UNIX-style pipes
by vasudevram 30 Aug '12

30 Aug '12

PipeController is a tool that I wrote to experiment with simulating simple, sequential, synchronous UNIX-style pipes in Python. It is the first release - v0.1. Blog post about PipeController: http://jugad2.blogspot.in/2012/08/pipecontroller-v01-released-simulating.ht… The blog post gives some information about the design of PipeController and an example of how to use it. Download PipeController: http://dancingbison.com/unix-pipes.zip I have not put any license information in the PipeController source code, but will be doing that, and it will be released under the New BSD license. - Vasudev Ram www.dancingbison.com

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ANN: gcc-python-plugin 0.10
by David Malcolm 30 Aug '12

30 Aug '12

gcc-python-plugin is a plugin for GCC 4.6 onwards which embeds the CPython interpreter within GCC, allowing you to write new compiler warnings for C/C++ in Python, generate code visualizations, etc. It comes with "cpychecker": a tool for static analysis tool of CPython extensions. Tarball releases are available at: https://fedorahosted.org/releases/g/c/gcc-python-plugin/ Prebuilt-documentation can be seen at: http://readthedocs.org/docs/gcc-python-plugin/en/latest/index.html Project homepage: https://fedorahosted.org/gcc-python-plugin/ What's new in v0.10: * support for the to-be-released Python 3.3 (tested against latest release candidate) * better support for analysis of C++ code: the API provides support for walking the namespace tree, and the cpychecker code now supports methods, references, "this", destructors, etc * lots of bug fixes: the cpychecker code has been hardened by running it on all of the Python C extension code in Fedora 17, and in the process many internal bugs have been found and fixed - along with hundreds of bugs in the code being tested: http://fedoraproject.org/wiki/Features/StaticAnalysisOfPythonRefcounts * similarly, Daniele Varrazzo used the checker extensively on psycopg, the popular Python interface to PostgreSQL, and using it was able to find and fix numerous subtle errors: http://initd.org/psycopg/articles/2012/03/29/psycopg-245-released/ * an experimental new HTML visualization for error reports: http://fedorapeople.org/~dmalcolm/gcc-python-plugin/2012-03-19/example/exam… Thanks to Buck Golemon, Daniele Varrazzo, David Narvaez, Eevee, Jason Mueller, Kevin Pyle, Matt Rice and Tom Tromey for their contributions to this release. Enjoy! Dave

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[RELEASE] six 1.2.0
by Benjamin Peterson 28 Aug '12

28 Aug '12

I'm happy to announce the release of six 1.2.0. Six is a Python 2 and 3 compatibility library. It provides utility functions for smoothing over the differences between the Python versions with the goal of writing Python code that is compatible on both Python 2.x and 3.x. It supports Python 2.4-3.3. Six can be downloaded on PyPI: http://pypi.python.org/pypi/six See the code and report bugs on BitBucket: http://bitbucket.org/gutworth/six The complete changelog in this release is: - Issue #13: Make iterkeys/itervalues/iteritems return iterators on Python 3 instead of iterables. - Issue #11: Fix maxsize support on Jython. - Add six.next() as an alias for six.advance_iterator(). - Use the builtin next() function for advance_iterator() where is available (2.6+), not just Python 3. - Add the Iterator class for writing portable iterators. Enjoy, Benjamin

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PyCon ZA 2012 - Call for Speakers
by Neil Muller 28 Aug '12

28 Aug '12

PyCon ZA 2012 - Call for Speakers PyCon ZA will take place October 4-5 in Cape Town, South Africa. There will be two days of talks, and we will hold sprints on the 6 and 7th of October. We are currently accepting proposals for talks. If you would like to give a presentation, please submit your proposal at http://za.pycon.org/. The deadline for proposals is the 15th of September. Accepted presenters will be notified by no later than the 20th of September. The presentation slots will be 30 minutes + 10 minutes of discussion at the end. Shared sessions are also possible. The presentations will be in English. If you wish to coordinate a sprint on a specific topic, please contact team(a)za.pycon.org with the details. See you at PyCon ZA 2012! -- Neil Muller On behalf of the PyCon ZA organising committee

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ANN: eGenix mxODBC 3.2.0 - Python ODBC Database Interface
by eGenix Team: M.-A. Lemburg 28 Aug '12

28 Aug '12

________________________________________________________________________ ANNOUNCING eGenix.com mxODBC Python ODBC Database Interface Version 3.2.0 mxODBC is our commercially supported Python extension providing ODBC database connectivity to Python applications on Windows, Mac OS X, Unix and BSD platforms This announcement is also available on our web-site for online reading: http://www.egenix.com/company/news/eGenix-mxODBC-3.2.0-GA.html ________________________________________________________________________ INTRODUCTION mxODBC provides an easy-to-use, high-performance, reliable and robust Python interface to ODBC compatible databases such as MS SQL Server, MS Access, Oracle Database, IBM DB2 and Informix , Sybase ASE and Sybase Anywhere, MySQL, PostgreSQL, SAP MaxDB and many more: http://www.egenix.com/products/python/mxODBC/ The "eGenix mxODBC - Python ODBC Database Interface" product is a commercial extension to our open-source eGenix mx Base Distribution: http://www.egenix.com/products/python/mxBase/ ________________________________________________________________________ NEWS The 3.2.0 release of our mxODBC is a new release of our popular Python ODBC Interface for Windows, Linux, Mac OS X and FreeBSD. New Features in 3.2 ------------------- * Switched to unixODBC 2.3.1+ API: mxODBC is now compiled against unixODBC 2.3.1, which finally removes the problems with the ABI change between 2.2 and 2.3 by switching to a new library version (libodbc.so.2). * mxODBC connection objects can now be used as context managers to implicitly commit/rollback transactions. * mxODBC cursor objects can now be used as context managers to implicitly close the cursor when leaving the block (regardless of whether an exception was raised or not) * mxODBC added support for adjustable .paramstyles. Both 'qmark' (default) and 'named' styles are supported and can be set on connections and cursors. The 'named' style allows easier porting of e.g. Oracle native interface code to mxODBC. * mxODBC now supports a writable connection.autocommit attribute to easily turn on/off the connection's auto commit mode. * mxODBC added support for adjustable TIMESTAMP precision via the new connection/cursor.timestampresolution attribute. * mxODBC will round to nearest nanosecond fraction instead of truncating the value. This will result in fewer conversion errors due to floating point second values. * mxODBC's connect APIs Connect() and DriverConnect() support setting connection options prior to connecting to the database via a new connection_options parameter. This allows enabling e.g. the MARS feature in SQL Server Native Client. * The connection.cursor() constructor now has a new cursor_options parameters which allows configuring the cursor with a set of cursor options. * The .scroll() method supports far more ODBC drivers than before. * Updated the SQL lookup object to include more ODBC SQL parameter codes, including special ones for SQL Server and IBM DB2. * mx.ODBC.Manager will now prefer unixODBC over iODBC. Previous mxODBC releases used the order iODBC, unixODBC, DataDirect when looking for a suitable ODBC manager on Unix platforms. unixODBC is more widely supported nowadays and provides better Unicode support than iODBC. For the full set of features mxODBC has to offer, please see: http://www.egenix.com/products/python/mxODBC/#Features Driver Compatibility Enhancements --------------------------------- * Added work-around for Oracle Instance Client to prevent use of direct execution. cursor.executedirect() will still work, but won't actually use direct execution with the Oracle driver. * Added work-around for Oracle Instant Client to prevent segfaults in the driver when querying the cursor.rowcount or cursor.rownumber. * Added check to make sure that Python type binding mode is not used with Oracle Instance Client as this can cause segfaults with the driver and generally doesn't work. * Added a work-around to have the IBM DB2 driver return correct .rowcount values. * Improved Sybase ASE driver compatibility: this only supports Python type binding, which is now enabled per default. * Added work-around for PostgreSQL driver, which doesn't support scrollable cursors. * Add support for MS SQL Server ODBC Driver 1.0 for Linux to mxODBC * Improved compatibility of the mxODBC native Unicode string format handling with Unix ODBC drivers when running UCS4 builds of Python. * mxODBC 3.2 now always uses direct execution with the FreeTDS ODBC driver. This results in better compatibility with SQL Server and faster execution across the board. * Add work-around to have FreeTDS work with 64-bit integers outside the 32-bit signed integer range. * FreeTDS' .rowcount attribute gave misleading values for SELECTs. This now always returns -1 (until they hopefully fix the driver to return usable data). For the full set of changes please check the mxODBC change log: http://www.egenix.com/products/python/mxODBC/changelog.html mxODBC Editions --------------- mxODBC is available in these three editions: * The low-cost Standard Edition which provides data connectivity to a single database type, e.g. just MS SQL Server. * The Professional Edition, which gives full access to all mxODBC features. * The Product Development Edition, which allows including mxODBC in applications you develop. Compared to mxODBC 3.0, we have simplified our license terms to clarify the situation on multi-core and virtual machines. In most cases, you no longer need to purchase more than one license per processor or virtual machine, scaling down the overall license costs significantly compared to earlier mxODBC releases. For a complete overview of the new editions, please see the product page. http://www.egenix.com/products/python/mxODBC/#mxODBCEditions ________________________________________________________________________ DOWNLOADS The download archives and instructions for installing the package can be found at: http://www.egenix.com/products/python/mxODBC/ In order to use the eGenix mxODBC package you will first need to install the eGenix mx Base package: http://www.egenix.com/products/python/mxBase/ ________________________________________________________________________ UPGRADING Users are encouraged to upgrade to this latest mxODBC release to benefit from the new features and updated ODBC driver support. We have taken special care, not to introduce backwards incompatible changes, making the upgrade experience as smooth as possible. For upgrade purchases, we will give out 20% discount coupons going from mxODBC 2.x to 3.2 and 50% coupons for upgrades from mxODBC 3.x to 3.2. After upgrade, use of the original license from which you upgraded is no longer permitted. Please contact the eGenix.com Sales Team at sales(a)egenix.com with your existing license serials for details for an upgrade discount coupon. If you want to try the new release before purchace, you can request 30-day evaluation licenses by visiting our web-site http://www.egenix.com/products/python/mxODBC/#Evaluation or by writing to sales(a)egenix.com, stating your name (or the name of the company) and the number of eval licenses that you need. _______________________________________________________________________ SUPPORT Commercial support for this product is available from eGenix.com. Please see http://www.egenix.com/services/support/ for details about our support offerings. _______________________________________________________________________ INFORMATION About Python (http://www.python.org/): Python is an object-oriented Open Source programming language which runs on all modern platforms. By integrating ease-of-use, clarity in coding, enterprise application connectivity and rapid application design, Python establishes an ideal programming platform for today's IT challenges. About eGenix (http://www.egenix.com/): eGenix is a software project, consulting and product company focusing on expert services and professional quality products for companies, Python users and developers. Enjoy, -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Aug 28 2012) >>> Python/Zope Consulting and Support ... http://www.egenix.com/ >>> mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ >>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ________________________________________________________________________ 2012-10-23: Python Meeting Duesseldorf ... 56 days to go 2012-08-20: Released mxODBC.Connect 2.0.0 ... http://egenix.com/go30 ::: Try our new mxODBC.Connect Python Database Interface for free ! :::: eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/

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