Mailman 3 July 2011 - Python-announce-list

Seeking feedback on new Python development platform
by Cameron Weiss July 5, 2011

July 5, 2011

Hello there! We have just released a Python development environment that is configured to quickly deploy on a variety of cloud providers (Rackspace, Amazon, GoGrid, SoftLayer, etc). We want it to be useful to the Python community so are seeking feedback and suggestions. You can spin it up for free at http://www.standingcloud.com/network/python by clicking Use it Now!. Any feedback can be sent to cameron.weiss(a)standingcloud.com and will be greatly appreciated. Thanks!

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ANN: python-ldap 2.4.1
by Michael Ströder July 5, 2011

July 5, 2011

Find a new release of python-ldap: http://pypi.python.org/pypi/python-ldap/2.4.1 python-ldap provides an object-oriented API to access LDAP directory servers from Python programs. It mainly wraps the OpenLDAP 2.x libs for that purpose. Additionally it contains modules for other LDAP-related stuff (e.g. processing LDIF, LDAPURLs and LDAPv3 schema). Project's web site: http://www.python-ldap.org/ Ciao, Michael. ---------------------------------------------------------------- Released 2.4.1 2011-07-05 Changes since 2.4.0: Modules: * New LDAP option OPT_X_TLS_PACKAGE available in OpenLDAP 2.4.26+ to determine the name of the SSL/TLS package OpenLDAP was built with Lib/ * ldap.modlist.modifyModlist(): New key-word argument case_ignore_attr_types used to define attribute types for which comparison of old and new values should be case-insensitive * Minor changes to which data is sent to debug output for various trace levels * Now tag [1] is used in ldap.extop.dds.RefreshResponse in compliance with RFC 2589 (fix available for OpenLDAP ITS#6886) * New sub-module ldap.controls.sessiontrack implements request control as described in draft-wahl-ldap-session (needs pyasn1_modules)

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[ANN] guiqwt v2.1.4
by Pierre.RAYBAUT＠CEA.FR July 5, 2011

July 5, 2011

Hi all, I am pleased to announce that `guiqwt` v2.1.4 has been released. 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. Complete change log is now 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 0.2.3 to test it without having to install anything: http://code.google.com/p/guiqwt/downloads/detail?name=sift023_portable.zip 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 Cheers, Pierre --- Dr. Pierre Raybaut CEA - Commissariat à l'Energie Atomique et aux Energies Alternatives

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[ANN] guidata v1.3.2
by Pierre.RAYBAUT＠CEA.FR July 5, 2011

July 5, 2011

Hi all, I am pleased to announce that `guidata` v1.3.2 has been released. Note that the project has recently been moved to GoogleCode: http://guidata.googlecode.com Main change since `guidata` v1.3.1: Since this version, guidata is compatible with PyQt4 API #1 and API #2. Please read carefully the coding guidelines which have been recently added to the documentation. Complete changelog is available here: http://code.google.com/p/guidata/wiki/ChangeLog The `guidata` documentation with examples, API reference, etc. is available here: http://packages.python.org/guidata/ Based on the Qt Python binding module PyQt4, 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: py2exe helpers * 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. Python package index page: http://pypi.python.org/pypi/guidata/ Documentation, screenshots: http://packages.python.org/guidata/ Downloads (source + Python(x,y) plugin): http://guidata.googlecode.com Cheers, Pierre --- Dr. Pierre Raybaut CEA - Commissariat à l'Energie Atomique et aux Energies Alternatives

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ANN: Portable Python 2.7.2.1 released
by Perica Zivkovic July 5, 2011

July 5, 2011

Dear people, I would like to announce new release of Portable Python based on Python 2.7.2. Included in this release: ------------------------- * PyScripter v2.4.1 * NymPy 1.6.0 * SciPy 0.90 * Matplotlib 1.0.1 * PyWin32 216 * Django 1.3 * PIL 1.1.7 * Py2Exe 0.6.9 * wxPython 2.8.12.0 Installation and use: --------------------- After downloading, run the installer, select the packages you would like to install, select target folder and you are done! In the main folder you will find shortcuts for selected applications in that package. Some of the most popular free Python IDE’s come preinstalled and preconfigured with Portable Python. How to use and configure them further please consult their documentation or project sites. kind regards, Perica Zivkovic http://www.PortablePython.com

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[RELEASED] Python 3.2.1 rc 2
by Georg Brandl July 4, 2011

July 4, 2011

On behalf of the Python development team, I am pleased to announce the second release candidate of Python 3.2.1. Python 3.2.1 will the first bugfix release for Python 3.2, fixing over 120 bugs and regressions in Python 3.2. For an extensive list of changes and features in the 3.2 line, see http://docs.python.org/3.2/whatsnew/3.2.html To download Python 3.2.1 visit: http://www.python.org/download/releases/3.2.1/ This is a testing release: Please consider trying Python 3.2.1 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)

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Python SDK for Windows 2011.07.03 released
by erikj July 3, 2011

July 3, 2011

we are pleased to announce a new release of our Python SDK for Windows more info at : http://www.python-camelot.com/cpd.html Changes ----------- a number of packages have been updated, including the Spyder IDE, and some new packages have been added. What is it ------------ The PythonSDK for Windows facilitates the development and deployment of Python Applications on Windows, it is a Python distribution that includes a large number of binary packages, such as Qt, PyQt, database drivers, crypto and SSL. Moreover : - it can be installed in end-user or developer mode, completely hiding for the user - IPython and the Spyder IDE in the start menu - all packages build with VS2008 and optimized for speed - easy access to the python packaging index

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PyCon DE 2011 - Call for Proposals extended to July 15, 2011
by Mike Müller July 1, 2011

July 1, 2011

PyCon DE 2011 - Deadline for Proposals extended to July 15, 2011 ================================================================ The deadline for talk proposals is extended to July 15, 2011. You would like to talk about your Python project to the German-speaking Python community? Just submit your proposal within the next two weeks: http://de.pycon.org/2011/speaker/ About PyCon DE 2011 ------------------- The first PyCon DE will be held October 4-9, 2011 in Leipzig, Germany. The conference language will be German. Talks in English are possible. Please contact us for details. The call for proposals is now open. Please submit your talk by June 30, 2011 online. There are two types of talks: standard talks (20 minutes + 5 minutes Q&A) and long talks (45 minutes + 10 minutes Q&A). More details about the call can be found on the PyCon DE website: http://de.pycon.org/2011/Call_for_Papers/ Since the conference language will be German, the call is in German too. PyCon DE 2011 - Neuer Einsendeschluss für Vortragsvorschläge 15.07.2011 ======================================================================= Noch bis zum 15.7.2011 kann jeder, der sich für Python interessiert, einen Vortragsvorschlag für die PyCon DE 2011 einreichen. Es gibt nur zwei Bedingungen: das Thema sollte interessant sein und etwas mit Python zu tun haben. Für die erste deutsche Python-Konferenz sind wir an einer breiten Themenpalette interessiert, die das ganze Spektrum der Entwicklung, Nutzung und Wirkung von Python zeigt. Mögliche Themen sind zum Beispiel: * Webanwendungen mit Python * Contentmanagement mit Python * Datenbankanwendungen mit Python * Testen mit Python * Systemintegration mit Python * Python für große Systeme * Python im Unternehmensumfeld * Pythonimplementierungen (Jython, IronPython, PyPy, Unladen Swallow und andere) * Python als erste Programmiersprache * Grafische Nutzerschnittstellen (GUIs) * Parallele Programmierung mit Python * Python im wissenschaftlichen Bereich (Bioinformatik, Numerik, Visualisierung und anderes) * Embedded Python * Marketing für Python * Python, Open Source und Entwickler-Gemeinschaft * Zukünftige Entwicklungen * mehr ... Ihr Themenbereich ist nicht aufgelistet, wäre aber aus Ihrer Sicht für die PyCon DE interessant? Kein Problem. Reichen Sie Ihren Vortragsvorschlag einfach ein. Auch wir können nicht alle Anwendungsbereiche von Python überschauen. Vortragstage sind vom 5. bis 7. Oktober 2011. Es gibt zwei Vortragsformate: * Standard-Vortrag -- 20 Minuten Vortrag + 5 Minuten Diskussion * Lang-Vortrag -- 45 Minuten Vortrag + 10 Minuten Diskussion Die Vortragszeit wird strikt eingehalten. Bitte testen Sie die Länge Ihres Vortrags. Lassen Sie gegebenenfalls ein paar Folien weg. Die Vortragsprache ist Deutsch. In begründeten Ausnahmefällen können Vorträge auch auf Englisch gehalten werden. Bitte fragen Sie uns dazu. Bitte reichen Sie Ihren Vortrag auf der Konferenz-Webseite http://de.pycon.org bis zum 15.07.2011 ein. Wir entscheiden bis zum 31. Juli 2011 über die Annahme des Vortrags.

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Early Bird for PyCon Ireland extended for another 2 weeks
by Vicky Twomey-Lee July 1, 2011

July 1, 2011

Hi All, PyCon Ireland Early bird (€50) offer has been extended till Sunday, 13th July. You can register here: https://secure.python.ie/pycon-ireland-2011/ Interested in giving a talk? You can submit your talks here: http://www.python.ie/pyconireland/callfor/#paper Interested in sponsoring PyCon Ireland 2011? Register interest here: http://www.python.ie/pyconireland/callfor/#sponsor More information: http://python.ie/pyconireland/ Cheers, /// Vicky Lee (PyCon Ireland 2011 Committee) ~~~~~~~~~~~~~~~~~~~~~~~~~ ~~ http://irishbornchinese.com ~~ ~~ http://www.python.ie ~~ ~~~~~~~~~~~~~~~~~~~~~~~~~

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ANN: pyparsing 1.5.6 released!
by Paul McGuire July 1, 2011

July 1, 2011

After about 10 months, there is a new release of pyparsing, version 1.5.6. This release contains some small enhancements, some bugfixes, and some new examples. Most notably, this release includes the first public release of the Verilog parser. I have tired of restricting this parser for commercial use, and so I am distributing it under the same license as pyparsing, with the request that if you use it for commmercial use, please make a commensurate donation to your local Red Cross. Change summary: --------------- - Cleanup of parse action normalizing code, to be more version- tolerant, and robust in the face of future Python versions - much thanks to Raymond Hettinger for this rewrite! - Removal of exception cacheing, addressing a memory leak condition in Python 3. Thanks to Michael Droettboom and the Cape Town PUG for their analysis and work on this problem! - Fixed bug when using packrat parsing, where a previously parsed expression would duplicate subsequent tokens - reported by Frankie Ribery on stackoverflow, thanks! - Added 'ungroup' helper method, to address token grouping done implicitly by And expressions, even if only one expression in the And actually returns any text - also inspired by stackoverflow discussion with Frankie Ribery! - Fixed bug in srange, which accepted escaped hex characters of the form '\0x##', but should be '\x##'. Both forms will be supported for backwards compatibility. - Enhancement to countedArray, accepting an optional expression to be used for matching the leading integer count - proposed by Mathias on the pyparsing mailing list, good idea! - Added the Verilog parser to the provided set of examples, under the MIT license. While this frees up this parser for any use, if you find yourself using it in a commercial purpose, please consider making a charitable donation as described in the parser's header. - Added the excludeChars argument to the Word class, to simplify defining a word composed of all characters in a large range except for one or two. Suggested by JesterEE on the pyparsing wiki. - Added optional overlap parameter to scanString, to return overlapping matches found in the source text. - Updated oneOf internal regular expression generation, with improved parse time performance. - Slight performance improvement in transformString, removing empty strings from the list of string fragments built while scanning the source text, before calling ''.join. Especially useful when using transformString to strip out selected text. - Enhanced form of using the "expr('name')" style of results naming, in lieu of calling setResultsName. If name ends with an '*', then this is equivalent to expr.setResultsName('name',listAllMatches=True). - Fixed up internal list flattener to use iteration instead of recursion, to avoid stack overflow when transforming large files. - Added other new examples: . protobuf parser - parses Google's protobuf language . btpyparse - a BibTex parser contributed by Matthew Brett, with test suite test_bibparse.py (thanks, Matthew!) . groupUsingListAllMatches.py - demo using trailing '*' for results names Download pyparsing 1.5.6 at http://sourceforge.net/projects/pyparsing/, or use 'easy_install pyparsing'. You can also access pyparsing's epydoc documentation online at http://packages.python.org/pyparsing/. The pyparsing Wiki is at http://pyparsing.wikispaces.com. -- Paul ======================================== Pyparsing is a pure-Python class library for quickly developing recursive-descent parsers. Parser grammars are assembled directly in the calling Python code, using classes such as Literal, Word, OneOrMore, Optional, etc., combined with operators '+', '|', and '^' for And, MatchFirst, and Or. No separate code-generation or external files are required. Pyparsing can be used in many cases in place of regular expressions, with shorter learning curve and greater readability and maintainability. Pyparsing comes with a number of parsing examples, including: - "Hello, World!" (English, Korean, Greek, and Spanish(new)) - chemical formulas - Verilog parser - Google protobuf parser - time expression parser/evaluator - configuration file parser - web page URL extractor - 5-function arithmetic expression parser - subset of CORBA IDL - chess portable game notation - simple SQL parser - Mozilla calendar file parser - EBNF parser/compiler - Python value string parser (lists, dicts, tuples, with nesting) (safe alternative to eval) - HTML tag stripper - S-expression parser - macro substitution preprocessor

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