Mailman 3 September 2013 - Python-announce-list

Vancouver Python Day (Nov 16)
by Andy McKay 30 Sep '13

30 Sep '13

The Vancouver Python User Group and the Vancouver Django Meetup Group are pleased to announce: Vancouver Python Day Saturday, November 16, 2013 SFU Harbour Centre Part of Vancouver Developer Week 2013, Vancouver Python Day is a one-day mini conference celebrating the Python Developer Community in Vancouver. We hope to have talks covering a wide variety of Python development, from web development to gaming to performance and optimization. To that end, we're currently seeking talk proposals. Please visit https://github.com/andymckay/vancouver-python-day and submit your proposal today. Tickets will be offered for a nominal fee; we'll be sending another announcement before tickets go on sale. In the meantime, please mark your calendars! More information on Vancouver Python Day: http://www.vanpyday.com/ More information on Vancouver Developer Week: http://vancouver.devweek.org/

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[RELEASED] Python 3.4.0a3
by Larry Hastings 30 Sep '13

30 Sep '13

On behalf of the Python development team, I'm pleased to announce the third alpha release of Python 3.4. This is a preview release, and its use is not recommended for production settings. Python 3.4 includes a range of improvements of the 3.x series, including hundreds of small improvements and bug fixes. Major new features and changes in the 3.4 release series so far include: * PEP 435, a standardized "enum" module * PEP 442, improved semantics for object finalization * PEP 443, adding single-dispatch generic functions to the standard library * PEP 445, a new C API for implementing custom memory allocators * PEP 446, changing file descriptors to not be inherited by default in subprocesses To download Python 3.4.0a3 visit: http://www.python.org/download/releases/3.4.0/ Please consider trying Python 3.4.0a3 with your code and reporting any issues you notice to: http://bugs.python.org/ Enjoy! -- Larry Hastings, Release Manager larry at hastings.org (on behalf of the entire python-dev team and 3.4's contributors)

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ANN: psutil 1.1.0 released
by Giampaolo Rodola' 28 Sep '13

28 Sep '13

Hi there folks, I'm pleased to announce the 1.1.0 release of psutil: http://code.google.com/p/psutil/ === About === psutil is a module providing an interface for retrieving information on all running processes and system utilization (CPU, memory, disks, network, users) in a portable way by using Python, implementing many functionalities offered by command line tools such as ps, top, free, netstat, lsof and others. It supports Linux, Windows, OSX, FreeBSD and Solaris with Python versions from 2.4 to 3.4. === New features === The main addition included in this new release is the possibility to set process resource limits on Linux (see "man prlimit"). This functionality is similar to what you can already do with stdlib resource module (http://docs.python.org/2/library/resource.html) but it is extended to all processes. For example, you might limit the number of files which may be opened by a process: >>> p = psutil.Process(pid) >>> p.set_rlimit(psutil.RLIMIT_NOFILE, (128, 128)) >>> files = [] >>> for x in range(200): ... files.append(open('/tmp/foo')) ... Traceback (most recent call last): File "<stdin>", line 2, in <module> IOError: [Errno 24] Too many open files: '/tmp/foo' ...or the maximum size of files that the process may create: >>> p.set_rlimit(psutil.RLIMIT_FSIZE, (1024, 1024)) >>> f = open('/tmp/foo', 'w') >>> f.write('x' * 1024) >>> f.flush() >>> f.write('x') >>> f.flush() Traceback (most recent call last): File "<stdin>", line 1, in <module> IOError: [Errno 27] File too large >>> === Main bugfixes === * Process.as_dict() return value couldn't be serialized to JSON. * [Windows] fixed a pretty serious memory leak in Process.get_memory_info(). * [Windows] Process get_children() and "name" property are an order of magnitude faster. === Other changes === * STATUS_* and CONN_* constants (returned by Process' status() and get_connections() methods respectively) have been turned from constant objects to plain Python strings. * source and Windows binary files are now hosted on PyPi Complete list of bugfixes and enhancements is here: https://psutil.googlecode.com/hg/HISTORY === Links === * Home page: http://code.google.com/p/psutil * Downloads: https://pypi.python.org/pypi?:action=display&name=psutil#downloads * API Reference: http://code.google.com/p/psutil/wiki/Documentation Please try out this new release and let me know if you experience any problem by filing issues on the bug tracker. All the best, --- Giampaolo Rodola' http://code.google.com/p/pyftpdlib/ http://code.google.com/p/psutil/ http://code.google.com/p/pysendfile/

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sqlparse 0.1.9
by Andi Albrecht 28 Sep '13

28 Sep '13

I'm pleased to announce sqlparse 0.1.9! Changes since last version: Bug Fixes * Fix an regression introduced in 0.1.5 where sqlparse didn't properly distinguished between single and double quoted strings when tagging identifier (issue111). Enhancements * New option to truncate long string literals when formatting. * Scientific numbers are pares correctly (issue107). * Support for arithmetic expressions (issue109, issue106; by prudhvi). Download: https://pypi.python.org/packages/source/s/sqlparse/sqlparse-0.1.9.tar.gz#md… Project page: https://github.com/andialbrecht/sqlparse Try it online on http://sqlformat.org Thanks to all contributors! Best regards, Andi

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nozama-cloudsearch-service 1.1.2: a local Amazon CloudSearch using ElasticSearch as its backend.
by Oisin Mulvihill 27 Sep '13

27 Sep '13

Hello, Have you ever wanted to test your app against a dev version of your production CloudSearch? Is management saying budget constraints won't allow this? Then Nozama CloudSearch is for you. It is a light weight implementation of Amazon's CloudSearch service you can run locally. Its has additional REST API features which allow inspection of data in a way not available via Amazon CloudSearch. Nozama is also a way to migrate from Amazon CloudSearch to ElasticSearch. Version 1.1.2 This now supports text searching and uses ElasticSearch as it backend. Facets are not yet supported. I use MongoDB to store the results of batch upload runs. This will change in future as I believe I can use ElasticSearch for this too. It is BSD licensed and available now from pypi https://pypi.python.org/pypi/ nozama-cloudsearch-service: easy_install nozama-cloudsearch-service Contributions are always welcome. Just fork me on github: * https://github.com/oisinmulvihill/nozama-cloudsearch It also has documentation which it self hosts or can be seen on readthedocs: * https://nozama-cloudsearch.readthedocs.org/en/latest/index.html All the best, Oisin

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Volles Programm - PyCon.DE-Tutorials jetzt buchen!
by Christopher Arndt 26 Sep '13

26 Sep '13

NOTE: This is an announcement for the PyCon.DE 2013 conference in Cologne, Germany (https://2013.de.pycon.org) and intended for a German-speaking audience. Volles Programm - PyCon.DE-Tutorials jetzt buchen! -------------------------------------------------- - Sie wollen eine Webseite mit Python entwickeln und wissen nicht, wie Sie anfangen sollen? - Sie arbeiten mit vielen Daten und suchen effiziente Tools zur Analyse und Berechnungen mit komplexen Datenstrukturen? - Sie beherrschen die Grundlagen Pythons und möchten fortgeschrittene Programmiertechniken erlernen und idiomatischen Python-Code schreiben? Auf dem Tutorialtag der PyCon.DE 2013 in Köln bieten wir ein volles Programm. Sicher ist dabei auch etwas für Sie, Ihre Kollegen oder Ihre Mitarbeiter! Unsere Tutorials finden am *Montag, den 14. Oktober 2013*, vor der PyCon.DE-Hauptkonferenz im Komed (Mediapark) in Köln statt. Sie dauern dauern drei (halbtags) oder sechs Stunden (ganztags). Zwei besondere Schwerpunkte des Tutorialangebots sind die Themen *Python-Frameworks zur Webentwicklung* sowie *wissenschaftliche Datenanalyse und -verarbeitung*. Daneben bieten wir auch auch Tutorials zu fortgeschrittenen Python-Sprachkonzepten oder zur Software-Entwicklungspraxis an. Einige Highlights aus der Auswahl von über einem Dutzend Tutorials sind: * In sechs Stunden zur eigenen Django App * Kurzeinstieg in IPython und IPython Notebook * Einführung in NumPy * Unittests für Einsteiger * Iteratoren, Generatoren und Dekoratoren * u.v.m. Besuchen Sie einfach die PyCon.DE-Webseite und buchen Sie Ihr Tutorial aus dem spannenden Tutorialprogramm: https://2013.de.pycon.org/programm/tutorials/ Dabei lohnt sich natürlich auch ein Blick auf das umfangreiche Vortragsprogramm und die anderen Events der PyCon.DE 2013. Wenn Sie daran teilnehmen möchten, buchen Sie noch *bis zum 30. September 2013*, um von den günstigeren Preisen für Normalbucher zu profitieren! https://2013.de.pycon.org/teilnehmen/registrieren/ Noch ein Tipp: falls Sie persönlich nicht an einem Tutorial teilnehmen können, machen Sie doch einfach einem Geschäftspartner eine Freude und schenken ihm ein Tutorialticket. Sicher freuen sich auch Ihre Mitarbeiter, Werkstudenten oder Auszubildenden über eine Tutorialteilnahme auf der PyCon.DE 2013. Wir freuen uns auf Sie! Im Namen des PyCon.DE-Organisationsteams Christopher Arndt

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numba 0.11
by Jay Bourque 26 Sep '13

26 Sep '13

Numba 0.11 is now available which brings experimental support for NumPy datetime64 and timedelta64 types with Numba's "nopython" mode. Supported functionality includes NumPy datetime and timedelta objects as numba function arguments and return values, creating new datetime and timedelta objects inside numba functions, and basic arithmetic operations between datetimes and timedeltas. When compiled with "nopython" turned on, datetime and timedelta objects will be translated to low level LLVM structures. Version 0.11 ========== * Experimental support for NumPy datetime64 and timedelta64 types Download ======== http://numba.pydata.org/download.html Website ======= http://numba.pydata.org/ Documentation ============ http://numba.pydata.org/numba-doc/0.11/index.html<http://numba.pydata.org/numba-doc/0.10/index.html> Numba ====== Numba is an just-in-time specializing compiler which compiles annotated Python and NumPy code to LLVM (through decorators). Its goal is to seamlessly integrate with the Python scientific software stack and produce optimized native code, as well as integrate with native foreign languages.

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ANN: Lea 1.1 (discrete probability distributions)
by Pierre Denis 25 Sep '13

25 Sep '13

I have the pleasure to announce the release of Lea 1.1. Lea is a Python package aiming at working with discrete probability distributions in an intuitive way. It allows modelling a broad range of random discrete phenomenons. Then, it allows calculating probabilities of events, whether atomic, aggregated or combined through given operations. A typical example is the probabilities of the sum of N dice having known, possibly unfair, probability distributions. Features -------- Here are the main features of Lea: - models finite discrete probability distributions - standard distribution indicators (mean, standard deviation,.) - arithmetic and logical operators on probability distribution - cartesian products, conditional probabilities, joint distributions - generation of random samples - open-source project, LGPL license - pure Python module, lightweight - no package dependency - probabilities stored as integers (no floating-point biases) Links ----- Download (PyPi): http://pypi.python.org/pypi/lea Project page: http://code.google.com/p/lea/ (with wiki documentation including tutorials, examples and API) Hoping this could be helpful in this uncertain universe... Pierre Denis

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devpi-1.1: improved pypi cache, data migration, wheels, ...
by holger krekel 25 Sep '13

25 Sep '13

The devpi-{server,client}-1.1 releases bring a lot of refinements and improvements for serving standalone pypi mirrors or company/private indexes which seemlessly merge in PyPI releases, mainly: - improved speed and semantics of pypi cache. devpi-server has been tested to correctly mirror all ~34000 projects on pypi.python.org now, and minimizes upstream interactions by fully exploiting the existing mirroring protocols. - data migration: new --upgrade/import/export options. versioning of serverstate and API calls so that future changes can be detected by clients. - better support for ".whl" files and many other little improvements and bug fixes, see the changelog below for more info. Note that devpi-1.1 will require to ``--upgrade`` your 1.0 server state before you can serve with devpi-server-1.1 release. Docs also were updated. Here is a Quickstart tutorial for efficient pypi-mirroring on your laptop:: http://doc.devpi.net/1.1/quickstart-pypimirror.html And if you want to manage your releases or implement staging as an individual or within an organisation:: http://doc.devpi.net/1.1/quickstart-releaseprocess.html If you want to permanently install devpi-server and potentially access it from many clients:: http://doc.devpi.net/1.1/quickstart-server.html More documentation and the beginning of an exhaustive user manual:: http://doc.devpi.net/latest/ have fun, holger CHANGELOG 1.1 ---------------------------- devpi-server: - systematically test pypi/mirror code against all 34K pypi projects so that we know that all http/https installable archive links that pypi offers are correctly recognized by devpi-server's root/pypi index. - if no pypi mirror state is known, devpi-server now calls pypi to obtain names/serials. It will fail to start if no such initial connection is possible. Once a first mirror state is known, subsequent devpi-server starts will not perform this initial query. - speed up and make more reliable all operations on private packages which have no pypi.python.org release: we can now determine if a project exists on pypi and under which name exactly without remote queries or redirects to pypi.python.org. - fix issue45: register/upload package names are now properly validated and redirects take place if e.g. a project was registered as "name-sub" and "+simple/name_sub" is queried. - new --upgrade-state command to allow for easy and safe in-place upgrading of server state. This is not guranteed to be possible for all future releases which might require using --export with an older version and --import with a newer version. - new --export/--import options to dump and import server contents: users, indexes, docs, release files and (test) attachments. Note that root/pypi (PyPI-caching information) will not be exported/imported. (maybe in the future if there is demand). - fix issue49: both push and import/export now support docfiles. Note, however, that docfiles relate to a project as a whole and are not tied to a particular version. This property is inherited from the PyPI standard upload_docs action and cannot be changed without interfering or replacing the upload_docs protocol of setuptools/sphinx. - fix issue51: return 200 code if release file is successfully uploaded but jenkins could not be triggered (previously returned 500) - reject simple/NAME if NAME contains non-ascii characters (PEP426 naming rules) - devpi-server now returns a X-DEVPI-API-VERSION and X-DEVPI-SERVER-VERSION header. For future incompatible changes these versions allow clients to reject interactions. - also add ".serverversion" file and write it if it does not exist, and make devpi-server use it to verify if operating on a compatible server data layout, otherwise bail out. - address issue43: --gendeploy now uses pip without --pre and explicitely instructs pip to install the exact same version of devpi-server with which --gendeploy is issued. - fix issue46 -- for GET /root/pypi/ only show a link to the simple page instead of computing "latest in-stage packages" which is only useful for devpi's user indices. - fix issue37: upload with expired login causes proper 401 devpi-client: - detect "X-DEVPI-API-VERSION" header and check for compatibility. devpi-client currently supports version "1" and warns if no version is known (defaulting to "1"). - getjson now prints http reply headers if "-v|--verbose" was supplied. - fix issue52: add "--no-vcs" option to force "devpi upload" to not vcs-export files before executing build/upload - fix issue50: introduce "--toxargs" to "devpi test" invocations in order to add arbitrary arguments to tox. - fix issue43: set PIP_PRE environment variable when executing "devpi install ..." so that the behaviour between pip < 1.4 and >= 1.4 is normalized to always install development versions. - fix issue47: set PIP_USE_WHEEL with "devpi install ..." so that it will automatically pick up wheel files if pip>1.4 is used. - fix issue42: allow to set empty bases for an index, so that it doesn't inherit anything. - fix issue44: "use -l" doesn't break when a user has no index - devpi test now invokes tox in-process (by importing tox) rather than a subprocess.

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memprof v0.3
by jmdana＠gmail.com 23 Sep '13

23 Sep '13

memprof v0.3 has been released. http://jmdana.github.io/memprof/ http://github.com/jmdana/memprof A critical part of the code has been optimised using Cython, resulting in a much faster profiler (around 2x faster for most of the tests). Feel free to install it using pip: sudo pip install --upgrade memprof or easy_install: sudo easy_install --upgrade memprof It will be available in Debian testing/unstable soon! Enjoy! Jose.

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