Mailman 3 March 2012 - Python-announce-list

[ANN] Leipzig Python User Group - Meeting, March 20, 2012, 08:00 p.m.
by Mike Müller March 19, 2012

March 19, 2012

=== Leipzig Python User Group === We will meet on Tuesday, March 20 at 8:00 p.m. at the training center of Python Academy in Leipzig, Germany ( http://www.python-academy.com/center/find.html ). Everybody who uses Python, plans to do so or is interested in learning more about the language is encouraged to participate. We will continue to work on our project "Python macht Schule" [1] creating Python teaching material for kids. While the meeting language will be mainly German, we will provide English translation if needed. Food and soft drinks are provided. Please send a short confirmation mail to info(a)python-academy.de, so we can prepare appropriately. Current information about the meetings are at http://www.python-academy.com/user-group . Mike [1] https://bitbucket.org/PySV/python_macht_schule == Leipzig Python User Group === Wir treffen uns am Dienstag, 20.03.2012 um 20:00 Uhr im Schulungszentrum der Python Academy in Leipzig ( http://www.python-academy.de/Schulungszentrum/anfahrt.html ). Willkommen ist jeder, der Interesse an Python hat, die Sprache bereits nutzt oder nutzen möchte. Wir werden weiter an unserem Projekt "Python macht Schule" [1] arbeiten. Dabei geht es darum Materialien für Kinder zum Erlernen von Python zu erarbeiten. Für das leibliche Wohl wird gesorgt. Eine Anmeldung unter info(a)python-academy.de wäre nett, damit wir genug Essen besorgen können. Aktuelle Informationen zu den Treffen sind unter http://www.python-academy.de/User-Group zu finden. Viele Grüße Mike [1] https://bitbucket.org/PySV/python_macht_schule

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cmd2, an extenstion of cmd that parses its argument list
by anntzer.lee＠gmail.com March 19, 2012

March 19, 2012

Dear all, I would like to announce the first public release of cmd2, an extension of the standard library's cmd with argument parsing, here: https://github.com/anntzer/cmd2. Cmd2 is an extension built around the excellent cmd module of the standard library. Cmd allows one to build simple custom shells using ``do_*`` methods, taking care in particular of the REPL loop and the interactive help. However, no facility is given for parsing the argument line (do_* methods are passed the rest of the line as a single string argument). With Cmd2, ``do_*`` methods are type-annotated, either using Python 3's function annotation syntax, or with an ad-hoc ``annotate`` decorator, allowing the dispatcher to parse the argument list for them. Antony Lee

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[RELEASED] Second release candidates for Python 2.6.8, 2.7.3, 3.1.5, and 3.2.3
by Benjamin Peterson March 18, 2012

March 18, 2012

We're chuffed to announce the immediate availability of the second release candidates for Python 2.6.8, 2.7.3, 3.1.5, and 3.2.3. The only change from the first release candidates is the patching of an additional security hole. The security issue fixed in the second release candidates is in the expat XML parsing library. expat had the same hash security issue detailed below as Python's core types. The hashing algorithm used in the expat library is now randomized. A more thorough explanation of the "hash attack" security hole follows. The main impetus for these releases is fixing a security issue in Python's hash based types, dict and set, as described below. Python 2.7.3 and 3.2.3 include the security patch and the normal set of bug fixes. Since Python 2.6 and 3.1 are maintained only for security issues, 2.6.8 and 3.1.5 contain only various security patches. The security issue exploits Python's dict and set implementations. Carefully crafted input can lead to extremely long computation times and denials of service. [1] Python dict and set types use hash tables to provide amortized constant time operations. Hash tables require a well-distributed hash function to spread data evenly across the hash table. The security issue is that an attacker could compute thousands of keys with colliding hashes; this causes quadratic algorithmic complexity when the hash table is constructed. To alleviate the problem, the new releases add randomization to the hashing of Python's string types (bytes/str in Python 3 and str/unicode in Python 2), datetime.date, and datetime.datetime. This prevents an attacker from computing colliding keys of these types without access to the Python process. Hash randomization causes the iteration order of dicts and sets to be unpredictable and differ across Python runs. Python has never guaranteed iteration order of keys in a dict or set, and applications are advised to never rely on it. Historically, dict iteration order has not changed very often across releases and has always remained consistent between successive executions of Python. Thus, some existing applications may be relying on dict or set ordering. Because of this and the fact that many Python applications which don't accept untrusted input are not vulnerable to this attack, in all stable Python releases mentioned here, HASH RANDOMIZATION IS DISABLED BY DEFAULT. There are two ways to enable it. The -R commandline option can be passed to the python executable. It can also be enabled by setting an environmental variable PYTHONHASHSEED to "random". (Other values are accepted, too; pass -h to python for complete description.) More details about the issue and the patch can be found in the oCERT advisory [1] and the Python bug tracker [2]. These releases are releases candidates and thus not recommended for production use. Please test your applications and libraries with them, and report any bugs you encounter. We are especially interested in any buggy behavior observed using hash randomization. Excepting major calamity, final versions should appear after several weeks. Downloads are at http://python.org/download/releases/2.6.8/ http://python.org/download/releases/2.7.3/ http://python.org/download/releases/3.1.5/ http://python.org/download/releases/3.2.3/ Please test these candidates and report bugs to http://bugs.python.org/ With regards, The Python release team Barry Warsaw (2.6), Georg Brandl (3.2), Benjamin Peterson (2.7 and 3.1) [1] http://www.ocert.org/advisories/ocert-2011-003.html [2] http://bugs.python.org/issue13703

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gluino
by Massimo Di Pierro March 15, 2012

March 15, 2012

Gluino is of web2py (gluon) libraries to Bottle, Flask, Pyramid, Tornado, and Wsgiref with examples. This is a project that started during the PyCon 2012 sprint. License: Web2py license (LGPL) applies to files in gluino/ folder On Gitbub: https://github.com/mdipierro/gluino On PyPI: http://pypi.python.org/pypi/Gluino The port includes; Database Abstraction Layer (dal.py) documentation Template language (template.py) documentation FORMs (form,py) documentation SQLFORMs (sqlhtml.py) documentation validators (validators.py) documentation widgets documentation cache (cache.py) documentation

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new release 0.38 of OpenOpt, FuncDesigner, SpaceFuncs, DerApproximator
by dmitrey March 15, 2012

March 15, 2012

Hi all, I'm glad to inform you about new release 0.38 (2012-March-15): OpenOpt: interalg can handle discrete variables interalg can handle multiobjective problems (MOP) interalg can handle problems with parameters fixedVars/freeVars Many interalg improvements and some bugfixes Add another EIG solver: numpy.linalg.eig New LLSP solver pymls with box bounds handling FuncDesigner: Some improvements for sum() Add funcs tanh, arctanh, arcsinh, arccosh Can solve EIG built from derivatives of several functions, obtained by automatic differentiation by FuncDesigner SpaceFuncs: Add method point.symmetry(Point|Line|Plane) Add method LineSegment.middle Add method Point.rotate(Center, angle) DerApproximator: Minor changes See http://openopt.org for more details Regards, D.

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ANN: python-ldap 2.4.9
by Michael Ströder March 14, 2012

March 14, 2012

Find a new release of python-ldap: http://pypi.python.org/pypi/python-ldap/2.4.8 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 2.4.9 2012-03-14 Changes since 2.4.8: Lib/ * ldapobject.ReconnectLDAPObject.reconnect() now does kind of an internal locking to pause other threads while reconnecting is pending. * Changes to bind- and startTLS-related operation methods of class ReconnectLDAPObject for more robustness * New constant ldap.OPT_NAMES_DICT contains mapping from integer to variable name for all option-related constants.

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ANN: PySuite/wx_py 0.9.8.9 (PyCrust, PySlices, SymPySlices, etc...)
by David Mashburn March 13, 2012

March 13, 2012

Hello everyone! The Py Suite of wxPython development tools has been updated (0.9.8.9)! Updates include some very minor bug fixes and a few new features, but the most notable change is probably the inclusion of a new installer for Windows that automatically installs Desktop Shortcuts with decent-looking icons (tested working on both Windows XP and 7). If you tried to install it on Windows before and had a less-than-wonderful experience, I hope that it is now smooth and simple! http://code.google.com/p/wxpysuite/ Enjoy and let me know if there are any hiccups! -David Here was the previous announcement which included descriptions: --------------------------------------------------------------- WxPython's Py Suite (PyCrust, etc.) updated with new "magic" features and new notebook interface shell, PySlices. WxPython has, for a long time, included PyCrust, one of the most popular Python shells. PyCrust has found uses in a number of projects, including Stani's Python Editor and some projects at Enthought. PyCrust, part of the larger "Py suite" of tools, had been dormant for some time now, but it is now under a new maintainer and has recently been updated! Py Suite 0.9.8.3 can be found in the wxPython 2.9 svn branch (import path is wx.py), on a Google code page (http://code.google.com/p/wxpysuite/) and in PyPI (package name is wx_py). Py Suite 0.9.8.3 requires wxPython 2.8 or later. A summary of the major changes follows: The biggest change is certainly the inclusion of a new notebook interface version of PyCrust called "PySlices" into the Py suite! It features multi-line execution in re-runnable code blocks called "slices" and the ability to save to a simple .pyslices format that when converted to .py is still valid python code! PySlices is a great lightweight alternative to the excellent SAGE and Reinteract projects. Both PyCrust and PySlices now include some ipython style "magic" features: Unix-style path functions: "cd", "ls", and "pwd" all work as expected Space based function calls: "f 1" will automatically convert to "f(1)" "?" character to call help: "?dir" is equivalent to "help(dir)" "!" character to call operating system shell commands: "!foobar" is automatically converted to "commands.getoutput('foobar')" There is also a highly experimental shell (not included in the wxPython svn version) called SymPySlices that uses sympy for for automatic symbol creation, and allows for the use of unicode charcters directly in python. Mathematical operators (including some infix operators via ast parsing) are supported. SymPySlices additionally requires Python 2.6 or later and sympy. This is still very experimental, so please let me know if you have questions, problems, or ideas (david.n.mashburn(a)gmail.com)! You can read more about these projects on the google code page: http://code.google.com/p/wxpysuite/ at the PyPI page: http://pypi.python.org/pypi/wx_py/0.9.8.3 and in the original wxTrac ticket: http://trac.wxwidgets.org/ticket/10959 Feel free to email me with questions, bugs, and feature requests! <P><A HREF="http://code.google.com/p/wxpysuite/">Py Suite 0.9.8.3</A> - WxPython's Py Suite (PyCrust, etc.) updated with new "magic" features and new notebook interface shell, PySlices. (06-April-2010)

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[ANN] pyspread 0.2.1
by Martin Manns March 12, 2012

March 12, 2012

============== pyspread 0.2.1 ============== Pyspread 0.2.1 is released. The new version improves GPG integration. About pyspread ============== Pyspread is a non-traditional spreadsheet application that is based on and written in the programming language Python. The goal of pyspread is to be the most pythonic spreadsheet application. Pyspread is designed for Linux and other GTK platforms. Pyspread is free software. It is released under the GPL v3. Project website: http://manns.github.com/pyspread/ What is new in 0.2.1 ==================== * Format menu added * Printing bug (first line not printed) fixed * GPG key choice dialog added * Secret key generation dialog added * Password saving in .pyspreadrc is now optional * Preferences dialog entries are now validated * Toolbar positions are now saved on exit * Absolute addressing with mouse changed to <Shift> + <Ctrl> * Relative addressing with mouse changed to <Alt> + <Ctrl> Enjoy Martin

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Pygments 1.5 "Zeitdilatation" released
by Georg Brandl March 10, 2012

March 10, 2012

I'm happy to announce the release of Pygments 1.5. Pygments is a generic syntax highlighter written in Python. Pygments 1.5 is a large release, with over 30 new languages or markups supported. Heavy thanks go to all the contributors of these lexers, and to all those who reported bugs and waited patiently for this release. Many thanks also go to Tim Hatch for writing his regexlint tool, with which many glitches and bugs in Pygments' regular expression-based lexers were caught. Download it from <http://pypi.python.org/pypi/Pygments>, or look at the demonstration at <http://pygments.org/demo>. Enjoy, Georg

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Sphinx 1.1.3 released
by Georg Brandl March 10, 2012

March 10, 2012

Hi all, I'm happy to announce the release of Sphinx 1.1.3. It fixes over 20 bugs and buglets in the 1.1 series of Sphinx. What is it? =========== Sphinx is a tool that makes it easy to create intelligent and beautiful documentation for Python projects (or other documents consisting of multiple reStructuredText source files). Website: http://sphinx.pocoo.org/ cheers, Georg

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