Mailman 3 May 2013 - Python-announce-list

pyroute2 0.1.7 - netlink library
by Peter V. Saveliev 29 May '13

29 May '13

… Pyroute2 is a pure-Python netlink library with several modules: * generic: encode/decode netlink messages * iproute: low-level NETLINK_ROUTE operations * ipdb: transactional network configuration database The library is quite young, but grows fast. Version 0.1.7 brings some important features: iproute ======= * experimental support for QoS: ingress, sfq, tbf, htb, u32 A reasonable and well-documented QoS support is planned for 0.2.0, but one can start to play with it already now. Actually, the main goal of this project part is to get complete implementation of tcmsg, supported by modern kernels, and make it possible to manage qdisc-related stuff without external utilities (tc), directly communicating with the kernel. ipdb ==== * interface create() call, that allows to create * dummy * bridge * bond * vlan interfaces * 'ports': an ability to attach/detach ports to/from master * different transaction models * direct: apply changes immediately * implicit: first change starts the transaction * explicit: transaction should be started by begin() call Most important is that now one can create and manage with the library complex interfaces like bridges or bondings, and that's really simple, e.g. bonding creation: https://github.com/svinota/pyroute2/blob/master/examples/create_bond.py links ===== home: https://github.com/svinota/pyroute2 bugs: https://github.com/svinota/pyroute2/issues pypi: https://pypi.python.org/pypi/pyroute2 docs: http://peet.spb.ru/pyroute2/ list: https://groups.google.com/d/forum/pyroute2-dev Feedback is welcome! -- Peter V. Saveliev

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[ANN] Training: Advanced Python at EuroPython, Florence, July 6 - 7, 2013
by Mike Müller 29 May '13

29 May '13

Advanced Python =============== What: Advanced Python - Who is afraid of metaclasses? When: July 6 - 7, 2013 Where: at EuroPython 2013, Florence, Italy Instructor: Mike Müller (eight years of Python training experience) Details: https://ep2013.europython.eu/conference/talks/advanced-python-2 You have intermediate Python skills and would like learn more about: * Comprehensions * Decorators * Context managers * Descriptors * Metaclasses and * Patterns? Than you should attend this two-day training that provides a systematic coverage of these topics. Useful code samples and exercises provide hands-on learning. We offered this training at EuroPython 2012 and PyConPL 2012 and got very good feedback. Many of the participants understood much more of the complex topics than they anticipated. Our next courses: 30.05.-01.06.2013 (Katowice, Poland) Advanced Python Course (English) 03.06.-05.06.2013 (Leipzig) Einstieg in Django (German) 06.06.-08.06.2013 (Leipzig) Django für Fortgeschrittene (German) 10.06.-12.06.2013 (Leipzig) Python for Scientists and Engineers (English) 13.06.2013 (Leipzig) Fast Code with the Cython Compiler (English) 14.06.2013 (Leipzig) Fast NumPy Processing with Cython (English) 24.06.-26.06.2013 (Leipzig) Professional Testing with pytest and tox (English) 02.07.2013 (Florence, Italy) Optimization at EuroPython (English) 06.07.-07.07.2013 (Florence, Italy) Advanced Python at EuroPython (English) 09.09.-11.09.2013 (Leipzig) Twisted Training (English) 11.09.-13.09.2013 (Bologna, Italy) Python per programmatori (Italian) 12.09.-13.09.2013 (Leipzig) Content-Management mit Plone (German) 11.11.-13.11.2013 (Leipzig) Introduction to Django (English) 14.11.-16.11.2013 (Leipzig) Advanced Django (English) 30.09.-02.10.2013 (Katowice, Poland) Python for Programmers (English) 03.10.-03.10.2013 (Katowice, Poland) Advanced Python Course (English)

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PyCon Ireland Early Bird tickets ending in just over 2 weeks
by Vicky Lee - Python Ireland 29 May '13

29 May '13

Hi All, When: 12th - 15th October 2013 Where: Burlington Hotel (conference) / College of Computer Training (sprints), Dublin Early Bird tickets are still available. Just over two weeks left! Ends *June 16th*. Buy yours at http://python.ie/pycon/ If you are interested in any of the sprints, you can register via http://python.ie/pycon/ as well. Call for Proposals <http://bit.ly/speakerpyconie> and Sponsors<http://bit.ly/sponsorpyconie>are still open. If you have any questions, please contact pycon(a)python.ie. Cheers, /// Vicky (PyCon Ireland <http://python.ie/pycon/2013/> co-Chair) Python Ireland <http://python.ie/> co-Chair / Treasurer EuroPython Board<https://ep2012.europython.eu/blog/2012/07/08/change-board-europython-society> PSF member <http://pyfound.blogspot.ie/2012/08/welcome-new-psf-members.html>

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[ANN] pypiserver 1.1.1 - minimal private pypi server
by Ralf Schmitt 28 May '13

28 May '13

Hi, I've just uploaded pypiserver 1.1.1 to the python package index. pypiserver is a minimal PyPI compatible server. It can be used to serve a set of packages and eggs to easy_install or pip. pypiserver is easy to install (i.e. just 'pip install pypiserver'). It doesn't have any external dependencies. https://pypi.python.org/pypi/pypiserver/ should contain enough information to easily get you started running your own PyPI server in a few minutes. The code is available on github: https://github.com/schmir/pypiserver Changes in this version ----------------------- - add 'overwrite' option to allow overwriting existing package files (default: false) - show names with hyphens instead of underscores on the "/simple" listing - make the standalone version work with jython 2.5.3 - upgrade waitress to 0.8.5 in the standalone version - workaround broken xmlrpc api on pypi.python.org by using HTTPS -- Cheers Ralf

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PyDev 2.7.5 Released
by Fabio Zadrozny 28 May '13

28 May '13

Hi All, PyDev 2.7.5 has been released Details on PyDev: http://pydev.org Details on its development: http://pydev.blogspot.com Release Highlights: ------------------------------- * Icons in the outline are now correct. * Fixed deadlock found on code analysis. * Project-related error markers no longer created in the main thread. * Showing a dialog to select template when a new module is created. * PyUnit view output font uses the same font as the console * New option in auto-formatting to auto-format only workspace files. * Auto-formatting with only deleted lines no longer changes everything. * PyUnit view orientation menu is now properly shown. * Fixed interaction with external files on pydev package explorer. What is PyDev? --------------------------- PyDev is a plugin that enables users to use Eclipse for Python, Jython and IronPython development -- making Eclipse a first class Python IDE -- It comes with many goodies such as code completion, syntax highlighting, syntax analysis, refactor, debug and many others. Cheers, -- Fabio Zadrozny ------------------------------------------------------ Software Developer PyDev - Python Development Environment for Eclipse http://pydev.org http://pydev.blogspot.com

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ANN: python-ldap 2.4.11
by Michael Ströder 27 May '13

27 May '13

Find a new release of python-ldap: http://pypi.python.org/pypi/python-ldap/2.4.11 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, LDAP URLs and LDAPv3 schema). Project's web site: http://www.python-ldap.org/ Ciao, Michael. ---------------------------------------------------------------- Released 2.4.11 2013-05-27 Changes since 2.4.10: Lib/ * ldap.controls.DecodeControlTuples() now simply ignores PyAsn1Error exception raised during decoding malformed response control values in case of non-critical controls. * ldif.LDIFWriter.unparse() does not simply skip empty records anymore.

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SQLObject 1.3.3 and 1.4.1
by Oleg Broytman 26 May '13

26 May '13

Hello! I'm pleased to announce bugfix releases 1.3.3 and 1.4.1. What's new in SQLObject ======================= * Fixed bugs in pickling and unpickling (remove/restore a weak proxy to self, fixed cache handling). * Added an example of using SQLObject with web.py to the links page. Contributors for this release are Andrew Trusty and Rhubarb Sin. For a more complete list, please see the news: http://sqlobject.org/News.html What is SQLObject ================= SQLObject is an object-relational mapper. Your database tables are described as classes, and rows are instances of those classes. SQLObject is meant to be easy to use and quick to get started with. SQLObject supports a number of backends: MySQL, PostgreSQL, SQLite, Firebird, Sybase, MSSQL and MaxDB (also known as SAPDB). Where is SQLObject ================== Site: http://sqlobject.org Development: http://sqlobject.org/devel/ Mailing list: https://lists.sourceforge.net/mailman/listinfo/sqlobject-discuss Archives: http://news.gmane.org/gmane.comp.python.sqlobject Download: https://pypi.python.org/pypi/SQLObject/1.3.3 https://pypi.python.org/pypi/SQLObject/1.4.1 News and changes: http://sqlobject.org/News.html Oleg. -- Oleg Broytman http://phdru.name/ phd(a)phdru.name Programmers don't die, they just GOSUB without RETURN.

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PyModel 1.0: model-based testing in Python
by jon.p.jacky＠gmail.com 25 May '13

25 May '13

PyModel v 1.0 is released. PyModel is a model-based testing framework for Python. In model-based testing, you code a model that can generate as many test cases as needed; the model also checks the test outcomes. In the samples included with PyModel, there are models and test scripts for network sockets, a communication protocol, embedded controllers, some data structures, a multithreaded application, and a web application. PyModel also includes an analyzer for validating models, visualizing their behavior, and checking their safety properties. Earlier public releases were versions 0.80 in Jan 2010, 0.85 in Mar 2010, and 0.90 in July 2011. Since July 2011 ongoing work has been available at GitHub: https://github.com/jon-jacky/PyModel/ PyModel can also be downloaded from PyPI http://pypi.python.org/pypi/PyModel or the author's web page at http://staff.washington.edu/jon/pymodel/www/ This release is called version 1.0 because it includes all of the features considered in the original project plan. (Development and maintenance will continue beyond this release.) Version 1.0 adds new functionality: - The PyModel Tester pmt supports observable actions and asynchronous steppers, to handle event-driven systems and nondeterminism. - The PyModel Analyzer pma performs safety analysis by checking state invariants. The PyModel Graphics program pmg indicates unsafe states in the generated graphs. - The new PyModel Viewer command pmv combines the functionality of the PyModel Analyzer pma, the PyModel Graphics program pmg, and the Graphviz dot program in a single command, for convenience and brevity. - The options to include or exclude actions, -a and -e, are now supported for FSMs and TestSuites as well as Model Programs, so you can use the command line to select which actions to include in your analyses or tests, even when you compose model programs with scenario machines. - The tester pmt provides a timeout option to specify that the test fails if the implementation does not respond within a given deadline. (This option might not work on Windows.) - The PyModel programs pma, pmg, pmt, and pmv can be run from the command line without the .py extension, like any other command. You can just type pmt ... , you no longer have to type pmt.py ... - The regression testing command tdiff replaces clogdiff. It works the same - this is just a renaming. The clogdiff command is retained in this version for backward compatibility, but is now deprecated. - The new command tclean removes test output files from the current directory. - The revised setup.py now supports the install argument, to optionally install the PyModel python modules and commands in system directories. Now PyModel can be installed using distutils (... setup.py install ...) or pip. Version 1.0 adds a new sample and revises all the others: - The completely rewritten Socket sample includes new asynchronous steppers (test harnesses) that show how to support asynchrony and nondeterminism using the select function, or alternatively, using threads. The Socket sample also includes new simulators that can optionally replace the the Python standard library socket and select modules, to demonstrate greater nondeterminism and transmission errors. - The new safety sample demonstrates state invariants and safety analysis. - There are new fsmpy/ and svg/ directories in each sample that contain FSM modules and SVG graphics files generated by the commands in the test scripts. - Many sample test scripts (test*.py modules) have been revised and the corresponding reference output (*.ref files) has been regenerated. Version 1.0 adds much new documentation and revises the rest: - There are new README.md (Markdown format) files in PyModel in most top-level directories below PyModel. - The new README.md in the samples directory briefly describes every sample. The new README.md in each sample directory explains that sample in more detail, and describes every file in that sample. - The documentation in the notes directory has been expanded and brought up to date. There are new and revised .txt files. Some .txt files have been replaced by .md (Markdown format) files. - The web pages in the www directory have been expanded and brought up to date. The content in these pages is drawn from .md files and .txt files in other PyModel directories. Version 1.0 reorganizes some code and directory structure: - There is a new bin directory for commands and scripts, separated from the pymodel directory for Python modules. - There is a new model.py module that contains the Model base class for the ModelProgram, FSM, TestSuite classes. Version 1.0 makes some bug fixes: - The programs no longer crash when a parameter generator is missing. Now they issue a helpful error message and exit. - The pmt program cancels the timeout when a timeout was requested but did not expire. - When models are composed, omitted arguments are handled correctly (usually, as "match any" indicators). - The pmt -o offline test generator option works.

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ANN: New WinPython with Python 2.7.5 and 3.3.2 (32/64bit)
by Pierre Raybaut 25 May '13

25 May '13

Hi all, I am pleased to announce that four new versions of WinPython have been released yesterday with Python 2.7.5 and 3.3.2, 32 and 64 bits. Many packages have been added or upgraded. Special thanks to Christoph Gohlke for building most of the binary packages bundled in WinPython. WinPython is a free open-source portable distribution of Python for Windows, designed for scientists. It is a full-featured (see http://code.google.com/p/winpython/wiki/PackageIndex) Python-based scientific environment: * Designed for scientists (thanks to the integrated libraries NumPy, SciPy, Matplotlib, guiqwt, etc.: * Regular *scientific users*: interactive data processing and visualization using Python with Spyder * *Advanced scientific users and software developers*: Python applications development with Spyder, version control with Mercurial and other development tools (like gettext) * *Portable*: preconfigured, it should run out of the box on any machine under Windows (without any installation requirements) and the folder containing WinPython can be moved to any location (local, network or removable drive) * *Flexible*: one can install (or should I write "use" as it's portable) as many WinPython versions as necessary (like isolated and self-consistent environments), even if those versions are running different versions of Python (2.7, 3.x in the near future) or different architectures (32bit or 64bit) on the same machine * *Customizable*: using the integrated package manager (wppm, as WinPython Package Manager), it's possible to install, uninstall or upgrade Python packages (see http://code.google.com/p/winpython/wiki/WPPM for more details on supported package formats). *WinPython is not an attempt to replace Python(x,y)*, this is just something different (see http://code.google.com/p/winpython/wiki/Roadmap): more flexible, easier to maintain, movable and less invasive for the OS, but certainly less user-friendly, with less packages/contents and without any integration to Windows explorer [*]. [*] Actually there is an optional integration into Windows explorer, providing the same features as the official Python installer regarding file associations and context menu entry (this option may be activated through the WinPython Control Panel), and adding shortcuts to Windows Start menu. Enjoy! -Pierre

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ANN: python-blosc 1.1 (final) released
by Francesc Alted 24 May '13

24 May '13

=========================== Announcing python-blosc 1.1 =========================== What is it? =========== python-blosc (http://blosc.pydata.org/) is a Python wrapper for the Blosc compression library. Blosc (http://blosc.org) is a high performance compressor optimized for binary data. It has been designed to transmit data to the processor cache faster than the traditional, non-compressed, direct memory fetch approach via a memcpy() OS call. Whether this is achieved or not depends of the data compressibility, the number of cores in the system, and other factors. See a series of benchmarks conducted for many different systems: http://blosc.org/trac/wiki/SyntheticBenchmarks. Blosc works well for compressing numerical arrays that contains data with relatively low entropy, like sparse data, time series, grids with regular-spaced values, etc. There is also a handy command line for Blosc called Bloscpack (https://github.com/esc/bloscpack) that allows you to compress large binary datafiles on-disk. Although the format for Bloscpack has not stabilized yet, it allows you to effectively use Blosc from your favorite shell. What is new? ============ - Added new `compress_ptr` and `decompress_ptr` functions that allows to compress and decompress from/to a data pointer, avoiding an itermediate copy for maximum speed. Be careful, as these are low level calls, and user must make sure that the pointer data area is safe. - Since Blosc (the C library) already supports to be installed as an standalone library (via cmake), it is also possible to link python-blosc against a system Blosc library. - The Python calls to Blosc are now thread-safe (another consequence of recent Blosc library supporting this at C level). - Many checks on types and ranges of values have been added. Most of the calls will now complain when passed the wrong values. - Docstrings are much improved. Also, Sphinx-based docs are available now. Many thanks to Valentin Hänel for his impressive work for this release. For more info, you can see the release notes in: https://github.com/FrancescAlted/python-blosc/wiki/Release-notes More docs and examples are available in the documentation site: http://blosc.pydata.org Installing ========== python-blosc is in PyPI repository, so installing it is easy: $ pip install -U blosc # yes, you should omit the python- prefix Download sources ================ The sources are managed through github services at: http://github.com/FrancescAlted/python-blosc Documentation ============= There is Sphinx-based documentation site at: http://blosc.pydata.org/ Mailing list ============ There is an official mailing list for Blosc at: blosc(a)googlegroups.com http://groups.google.es/group/blosc Licenses ======== Both Blosc and its Python wrapper are distributed using the MIT license. See: https://github.com/FrancescAlted/python-blosc/blob/master/LICENSES for more details. Enjoy! -- Francesc Alted

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