Mailman 3 June 2015 - Python-announce-list

EuroPython 2015: Call for On-site Volunteers
by M.-A. Lemburg June 30, 2015

June 30, 2015

EuroPython is organized and run by volunteers from the Python community, but we’re only a few and we will need more help to make the conference run smoothly. We need your help ! ------------------- We will need help with the conference and registration desk, giving out the swag bags and t-shirts, session chairing, entrance control, set up and tear down, etc. Perks for Volunteers -------------------- In addition to endless fame and glory as official EuroPython Volunteer, we have also added … [View More]

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[ANN] uasyncio - lean asyncio-like library
by Paul Sokolovsky June 28, 2015

June 28, 2015

Hello, It was mentioned several times on the list already, and I would like to finally make a formal announcement of it, also to mark "mostly complete" status. What: uasyncio is asyncio-like library for MicroPython (https://github.com/micropython/micropython) to accommodate writing asyncio-style applications for constrained (both memory- and CPU-wise) systems, down to microcontrollers, but also for small embedded Linux systems (as well as for embedding into non-Python applications, or … [View More]producing small self-contained applications). Where: https://github.com/micropython/micropython-lib/tree/master/uasyncio.core https://github.com/micropython/micropython-lib/tree/master/uasyncio Structure: uasyncio is structured as 2 components: uasyncio.core module which implements generic priority queue based scheduler, and uasyncio package proper, which adds async I/O support (currently with Linux support). Functionality provided: uasyncio implements subset of asyncio functionality: 1. It is built around concept of coroutines. Future's and Task's are not part of its core API. 2. For I/O, high-level Stream API is supported, without low-level Transport API. Differences from asyncio: 1. The main difference is that uasyncio is strictly asynchronous library, with writing (and other related operations) being as asynchronous as read. More info is in http://bugs.python.org/issue24449 which also links to recent discussion on the list. 2. One potential difference is handling of Stream close operations. This aspect isn't yet fully worked out (and is the reason why I didn't post uasyncio announcement earlier). Intuitively, the issue is that asyncio separate read and write Streams into separate objects. But underlying socket object is a duplex read/write one, so closing it should be done carefully. As uasyncio tries to avoid extra abstraction layers, its handling of close operations is different to that of asyncio. Any hints/discussion of this issue is welcome. 3. As an extension, it's possible to schedule a new coroutine for execution by just yielding it. This was also discussed previously at http://comments.gmane.org/gmane.comp.python.tulip/2430 . To let uasyncio applications run with asyncio, there's a compatibility module available at https://github.com/micropython/micropython-lib/tree/master/cpython-uasyncio Ecosystem: An experimental web stack was prototyped on top of uasyncio: 1. picoweb web pico-framework: https://github.com/pfalcon/picoweb 2. utemplate tiny template module: https://github.com/pfalcon/utemplate 3. uorm tiny anti-ORM (current implementation supports Sqlite and actually synchronous so far): https://github.com/pfalcon/uorm Also, there's an async HTTP client https://github.com/pfalcon/micropython-uaiohttpclient (roughly following aiohttp API). There's an example application for picoweb ported from Flask: https://github.com/pfalcon/notes-pico Having MicroPython installed, the test app can be installed/run with: micropython -m upip install notes-pico micropython -X heapsize=150wK -m notes_pico.main Achieved memory efficiency: I once read an article which described coolness of Python coroutines, in particular mentioning that a coroutine object takes a "mere" 1KB of memory, so there can easily be tens of thousands of them, unlike (preemptive) threads. In MicroPython, a small coroutine takes 32 bytes of memory. But a minimal web application using picoweb still requires 50KB of heap to run. That's good enough for Linux systems, but somewhat on bigger side for microcontrollers (for comparison, reference microcontroller system for uPy has 128KB of heap; we would like to support systems down to 16KB of memory). Achieved performance: Testcases are in https://github.com/micropython/micropython-lib/tree/master/uasyncio/benchma… uasyncio + MicroPython: Document Length: 12000 bytes Concurrency Level: 100 Complete requests: 10000 Requests per second: 10699.74 [#/sec] (mean) Time per request: 9.346 [ms] (mean) asyncio + cpython-uasyncio + CPython 3.4.2 Document Length: 12000 bytes Concurrency Level: 100 Complete requests: 10000 Requests per second: 4876.02 [#/sec] (mean) Time per request: 20.509 [ms] (mean) Apache 2.4 + default static page Document Length: 11510 bytes Concurrency Level: 100 Complete requests: 10000 Requests per second: 12857.98 [#/sec] (mean) Time per request: 7.777 [ms] (mean) -- Best regards, Paul mailto:pmiscml@gmail.com [View Less]

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qutebrowser v0.3.0 released!
by Florian Bruhin June 28, 2015

June 28, 2015

Hi! qutebrowser is a keyboard-driven, vim-like browser based on Python, PyQt5 and QtWebKit. I'm happy to announce qutebrowser v0.3.0 was released today - with a lot of new features and some bugfixes. You can find the full annoucement and changelog here: https://lists.schokokeks.org/pipermail/qutebrowser/2015-June/000082.html The download can be found here: http://qutebrowser.org/releases/v0.3.0/ Florian -- http://www.the-compiler.org | me(a)the-compiler.org (Mail/XMPP) GPG: 916E B0C8 … [View More]

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[ANN] Unicodemoticons 1.0.6
by Juan Carlos June 27, 2015

June 27, 2015

Hello mammals, we are presenting today... UnicodEmoticon version 1.0.6, Its like a Color Picker but for Unicode Emoticons, on Python 3 and Qt 5, simple and minimalist, just 1 file, for Mac Os X and Linux, GUI consist of 1 TrayIcon with Sub-Menus, works on the whole Desktop, on all apps. Whats new on this release? Added On Mouse Hover Previews and Fixes contributed by Flying-Sheep. Other features: - HTML Entities, eg. "&copy ;" y Multiple characters, eg. "¯\_(ツ)_/¯" - Single-file, … [View More]

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FW: REG: Python Patch/Version release Updates!!
by Subbaraj-CW, Nandha Kumar 8360 June 26, 2015

June 26, 2015

Hi Python Team, Could you get me response for below questions. Or let me know the procedure for getting the answer. Thanks & Regards, Nandha Kumar S R&D-Biometrics Support OPDC Business Services From: Subbaraj-CW, Nandha Kumar 8360 Sent: Friday, June 26, 2015 12:17 AM To: 'webmaster(a)python.org' Subject: REG: Python Patch/Version release Updates!! Hi Python Help, Please route this query and help us back with the response. We are having an active Python License in Otsuka … [View More]

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EuroPython 2015: Standard rates deadline extended
by M.-A. Lemburg June 26, 2015

June 26, 2015

We had originally planned switching to On-Desk Rates yesterday, but because ticket sales are going well, we are extending the deadline for more than a week. *** Buy your EuroPython 2015 tickets *** https://ep2015.europython.eu/en/registration/ On-Desk Rates ------------- On-Desk Rates will be active starting on Monday, 2015-07-06, 00:00:00 CEST: * Student: 180 EUR * Personal: 440 EUR * Business: 690 EUR (all incl. 10% Spanish VAT) This means that you can … [View More]

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Introducing Wheelhouse
by Randy Syring June 26, 2015

June 26, 2015

Wheelhouse is a utility to help maintain a wheelhouse. The code for this project is rather basic, but it's the concept that counts. Putting the concept of a wheelhouse into practice has made managing dependencies for our projects across dev, testing and production environments much, much easier. Checkout Keg <https://github.com/level12/keg> to see a project which is using a wheelhouse in conjunction with tox to manage dependencies. What is a Wheelhouse? A wheelhouse is a local … [View More]

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ANN: eGenix mxODBC 3.3.3 - Python ODBC Database Interface
by eGenix Team: M.-A. Lemburg June 25, 2015

June 25, 2015

________________________________________________________________________ ANNOUNCING eGenix.com mxODBC Python ODBC Database Interface Version 3.3.3 mxODBC is our commercially supported Python extension providing ODBC database connectivity to Python applications on Windows, Mac OS X, Unix and BSD platforms with many advanced Python DB-API extensions and full support of … [View More]stored procedures This announcement is also available on our web-site for online reading: http://www.egenix.com/company/news/eGenix-mxODBC-3.3.3-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, Oracle Database, IBM DB2, Informix and Netezza, SAP Sybase ASE and Sybase Anywhere, Teradata, MySQL, MariaDB, 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 3.3.3 release of our mxODBC is a patch level release of our popular Python ODBC Interface for Windows, Linux, Mac OS X and FreeBSD. It includes these enhancements and fixes: Driver Compatibility -------------------- MS SQL Server MS SQL Server Native Client * Added a fix for the MS SQL Server Native Client error "[Microsoft][ODBC Driver 11 for SQL Server][SQL Server]The data types varchar and text are incompatible in the equal to operator." when trying to bind a string of more than 256 bytes to a *VARCHAR* column while using cursor.executedirect(). cursor.execute() was unaffected by this. Thanks to Paul Perez for reporting this. * Added a note to *avoid using "execute "* when calling stored procedures with MS SQL Server. This can result in '[Microsoft][SQL Native Client]Invalid Descriptor Index' errors. Simply dropping the "execute " will have the error go away. FreeTDS ODBC Driver * Added a work-around to address the FreeTDS driver error '[FreeTDS][SQL Server]The data types varbinary and image are incompatible in the equal to operator.' when trying to bind binary strings longer than 256 bytes to a *VARBINARY* column. This problem does not occur with the MS SQL Server Native Client. * Reenabled returning *cursor.rowcount* for FreeTDS >= 0.91. In previous versions, FreeTDS could return wrong data for .rowcount when using SELECTs.This should make *SQLAlchemy* users happy again. * Add work-around to have FreeTDS ODBC driver accept *binary data* in strings as input for VARBINARY columns. A side effect of this is that FreeTDS will now also accept binary data in VARCHAR columns. SAP Sybase ASE * Added work-arounds and improvements for Sybase ASE ODBC drivers to enable working with *BINARY* and *VARBINARY* columns. * Added a work-around for a *cursor.rowcount* problem with Sybase ASE's ODBC driver on 64-bit platforms. It sometimes returns 4294967295 instead of -1. * Added note about random segfault problems with the *Sybase ASE 15.7 ODBC driver* on Windows. Unfortunately, there's nothing much we can do about this, other than recommend using the Sybase ASE 15.5 ODBC driver version which does not have these stability problems. Misc: * Added improved documentation on the *direct execution model* available in mxODBC. This can help in more complex parameter binding situations and also provides performance boosts for a few databases, including e.g. MS SQL Server. * Improved tests and added more data binding tests, esp. for SELECT queries with bound parameters. * Fixed some minor issues with the *package web installer* related to Linux2 vs. Linux3, FreeBSD installations and an intermittent error related to hash seeds, which sometimes caused prebuilt archives to not install correctly. For the full set of changes please check the mxODBC change log: http://www.egenix.com/products/python/mxODBC/changelog.html ________________________________________________________________________ FEATURES mxODBC 3.3 was released on 2014-04-08. Please see the full announcement for highlights of the 3.3 release: http://www.egenix.com/company/news/eGenix-mxODBC-3.3.0-GA.html For the full set of features mxODBC has to offer, please see: http://www.egenix.com/products/python/mxODBC/#Features ________________________________________________________________________ EDITIONS mxODBC is available in these two editions: * The Professional Edition, which gives full access to all mxODBC features. * The Product Development Edition, which allows including mxODBC in applications you develop. For a complete overview of the available 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/ You can also simply use: pip install egenix-mxodbc and then get evaluation licenses from our website to try mxODBC: http://www.egenix.com/products/python/mxODBC/#Evaluation ________________________________________________________________________ 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. Customers who have purchased mxODBC 3.3 licenses can continue to use their licenses with this patch level release. For upgrade purchases, we will give out 20% discount coupons going from mxODBC 2.x to 3.3 and 50% coupons for upgrades from mxODBC 3.x to 3.3. Please contact the eGenix.com Sales Team with your existing license serials for details for an upgrade discount coupon. If you want to try the new release before purchase, you can request 30-day evaluation licenses by visiting our web-site http://www.egenix.com/products/python/mxODBC/#Evaluation or 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, Jun 25 2015) >>> Python Projects, Coaching and Consulting ... http://www.egenix.com/ >>> mxODBC Plone/Zope Database Adapter ... http://zope.egenix.com/ >>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ________________________________________________________________________ 2015-06-16: Released eGenix pyOpenSSL 0.13.10 ... http://egenix.com/go78 2015-07-20: EuroPython 2015, Bilbao, Spain ... 25 days to go 2015-07-29: Python Meeting Duesseldorf ... 34 days to go 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/ [View Less]

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EuroPython 2015: Beginner’s Day
by M.-A. Lemburg June 24, 2015

June 24, 2015

We’re pleased to announce a new venture at this year’s EuroPython... *** The EuroPython Beginner’s Day *** https://ep2015.europython.eu/en/events/beginners-day/ If you’re thinking of coming to the conference but you’re new to Python, this could be the session for you. Whether you’re totally new to programming or you already know another language, this day is to give you a crash-course in Python, and the ecosystem around it, to give you the context you need to get the … [View More]most out of EuroPython. Bring your laptop, as a large part of the day will be devoted to learning Python on your own PC. This session will take place on the first day of the conference, the Monday. It will be presented in English (although a few of the coaches do speak basic Spanish, French and Italian). Sessions will include: * A high-level introduction to Python and programming in general. Where did Python come from, what is programming all about, and what do I need to know to understand all these in-jokes about cheese shops? * A self-directed learning session, with specific tutorials for total beginners and more experienced programmers, accompanied by coaches who will be there to answer your questions and help you when you get stuck. Learn at your own pace! * A session on the Python “ecosystem” An introduction to the Python ecosystem: some topics and bits of jargon that are bound to come up this week: open source, free software, github, packages, pip, pypi, scientific computing, scipy, numpy, pandas, ipython notebook, web frameworks, django, flask, asyncio, the BDFL, the Zen of Python, etc etc. What are the tools, areas of interest, in-jokes, people of note. * “How to get the best out of the conference” - recommended talks, what to do at lunchtimes or in the evenings, tips on when and how to ask questions (hint: as often as possible!), what an “open space” is, and more. We really need to get an idea of numbers for this session, so if you are interested in attending, please drop a quick email to Harry Percival <obeythetestinggoat(a)gmail.com> from the program work group. Also, be sure to get your tickets in time, since ticket sales have picked up a lot since we announced the schedule. PS: We’re also looking for volunteers to help with coaching students during this session. If you enjoy teaching Python to beginners, and you don’t mind sacrificing your EuroPython Monday to it, please do get in touch with Harry Percival <obeythetestinggoat(a)gmail.com> ! Enjoy, -- EuroPython 2015 Team http://ep2015.europython.eu/ http://www.europython-society.org/ [View Less]

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pytest-2.7.2: bug fixes
by holger krekel June 23, 2015

June 23, 2015

pytest-2.7.2: bug fixes ======================= pytest is a mature Python testing tool with more than a 1100 tests against itself, passing on many different interpreters and platforms. This release is supposed to be drop-in compatible to 2.7.1. See below for the changes and see docs at: http://pytest.org As usual, you can upgrade from pypi via:: pip install -U pytest Thanks to all who contributed to this release, among them: Bruno Oliveira Floris Bruynooghe … [View More]

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