Mailman 3 August 2015 - Python-announce-list

ANN: Bokeh 0.9.3 released
by Damian Avila Aug. 28, 2015

Aug. 28, 2015

Hi all, On behalf of the Bokeh team, I am excited to announce the release of version 0.9.3 of Bokeh, an interactive web plotting library for Python... and other languages! This release was focused into provide several usability enhancements, better docs, new examples, a lot of bug fixes and an improved testing machinery (using pytest and selenium-based test). Some of the highlights are: * Support horizontal or vertical spans * Provide raw_components version of bokeh.embed.components * Prevent Bokeh from eating scroll events if wheel tool is not active * bokeh.models.actions are now called bokeh.models.callbacks and Callback is now CustomJS * Additional validation warnings * Cleaned up gulp source mapping * Fixes in our build machinery * Cleaned up models section of the reference guide * Use pytest instead of nose * Beginning to add selenium tests See the CHANGELOG <https://github.com/bokeh/bokeh/blob/master/CHANGELOG> for full details. If you are using Anaconda/miniconda, you can install it with conda: *conda install bokeh* or directly from our Binstar main channel with: *conda install -c bokeh bokeh* Alternatively, you can also install it with pip: *pip install bokeh* If you want to use Bokeh in standalone Javascript applications, BokehJS is available by CDN at: * http://cdn.pydata.org/bokeh/release/bokeh-0.9.3.min.js * http://cdn.pydata.org/bokeh/release/bokeh-0.9.3.min.css Additionally, BokehJS is also installable with the Node Package Manager at https://www.npmjs.com/package/bokehjs Issues, enhancement requests, and pull requests can be made on the Bokeh Github page: https://github.com/bokeh/bokeh Questions can be directed to the Bokeh mailing list: bokeh(a)continuum.io Cheers.

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[ANN] PySPH-1.0a3: Smoothed Particle Hydrodynamics with Python
by Prabhu Ramachandran Aug. 28, 2015

Aug. 28, 2015

Hi, I am pleased to release PySPH version 1.0a3. PySPH is an open source (BSD licensed) framework for Smoothed Particle Hydrodynamics (SPH) simulations. It is implemented in Python and the performance critical parts are implemented in Cython. A wide variety of SPH formulations are available and new ones can be easily added. PySPH allows users to write their high-level code in pure Python. This Python code is automatically converted to high-performance Cython which is compiled and executed. PySPH can also be configured to work seamlessly with OpenMP and MPI. Documentation: http://pysph.readthedocs.org Download: http://pypi.python.org/pypi/PySPH/ Development: http://pysph.bitbucket.org Changelog: http://pythonhosted.org/PySPH/overview.html#changelog Quick changelog --------------- - Improve the Application class to make it very easy to do a variety of things including user-defined command line arguments, adding new tools and pre/post-step callbacks. - Add a convenient pysph script to run examples, run tests and view the results. - Bundle all examples with the installation so ``pip install PySPH`` is all you need to run the examples and use the library. - Use a platform and Python specific directory to store auto-generated code. - Silence distracting compiler warnings and only show them when an error occurs. For more details see the detailed changelog here: http://pythonhosted.org/PySPH/overview.html#changelog Installation ------------ Please see the documentation above for detailed instructions. You should be able to: $ pip install pysph If you need to run the tests you can run ``pip install pysph[test]`` to automatically fetch the additional dependencies (nose and mock). To use the viewer you will need mayavi installed. ``pip install pysph[all]`` should fetch all the dependencies. Features -------- - Flexibility to define arbitrary SPH equations in pure Python - Define your own multi-step integrators in pure Python - High-performance: our performance is comparable to hand-written solvers implemented in low-level languages - Seamless multi-core support with OpenMP - Seamless MPI support using: http://www.cs.sandia.gov/zoltan/ PySPH supports a variety of SPH formulations including: - Weakly compressible SPH - Transport Velocity Formulation - SPH for elastic dynamics - Compressible flows cheers, Prabhu Ramachandran Department of Aerospace Engineering, IIT Bombay http://www.aero.iitb.ac.in/~prabhu

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fIDDLE v0.2 - A Simple Python Code Editor
by Aaron Kehrer Aug. 28, 2015

Aug. 28, 2015

Hello, fIDDLE is a new Python code editor I have been working on. It started as a rough proof-of-concept for the IDLE Reimagined project based on PyQt, but has diverged somewhat into its own thing. https://github.com/akehrer/fiddle Features: - Interactive interpreter (Python shell) - Tabbed file editor with code completion - Easy access to built-in Python documentation (via pydoc) - Quick search for errors - Improved traceback information - One touch code cleaner and code checker - Easily switch between interpreters (including virtual environments) There is a Windows executable available in Releases and I have been able to get it working on both Ubunutu and OS X. https://github.com/akehrer/fiddle/releases Feedback welcome. Thank you for looking. - Aaron

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ANN: python-periphery 1.0.0
by Ivan Sergeev Aug. 27, 2015

Aug. 27, 2015

Linux Peripheral I/O (GPIO, SPI, I2C, MMIO, Serial) with Python 2 / Python 3 python-periphery is a pure Python library for GPIO, SPI, I2C, MMIO, and Serial peripheral I/O interface access in userspace Linux. It is useful in embedded Linux environments (including BeagleBone, Raspberry Pi, etc. platforms) for interfacing with external peripherals. python-periphery is compatible with Python 2 and Python 3, is written in pure Python, and is MIT licensed. GitHub: https://github.com/vsergeev/python-periphery Documentation: http://python-periphery.readthedocs.org/ Examples GPIO from periphery import GPIO # Open GPIO 10 with input direction gpio_in = GPIO(10, "in") # Open GPIO 12 with output direction gpio_out = GPIO(12, "out") value = gpio_in.read() gpio_out.write(value) gpio_in.close() gpio_out.close() SPI from periphery import SPI # Open spidev1.0 with mode 0 and max speed 1MHz spi = SPI("/dev/spidev1.0", 0, 1000000) data_out = [0xaa, 0xbb, 0xcc, 0xdd] data_in = spi.transfer(data_out) print("shifted out [0x%02x, 0x%02x, 0x%02x, 0x%02x]" % tuple(data_out)) print("shifted in [0x%02x, 0x%02x, 0x%02x, 0x%02x]" % tuple(data_in)) spi.close() I2C from periphery import I2C # Open i2c-0 controller i2c = I2C("/dev/i2c-0") # Read byte at address 0x100 of EEPROM at 0x50 msgs = [I2C.Message([0x01, 0x00]), I2C.Message([0x00], read=True)] i2c.transfer(0x50, msgs) print("0x100: 0x%02x" % msgs[1].data[0]) i2c.close() MMIO from periphery import MMIO # Open am335x real-time clock subsystem page rtc_mmio = MMIO(0x44E3E000, 0x1000) # Read current time rtc_secs = rtc_mmio.read32(0x00) rtc_mins = rtc_mmio.read32(0x04) rtc_hrs = rtc_mmio.read32(0x08) print("hours: %02x minutes: %02x seconds: %02x" % (rtc_hrs, rtc_mins, rtc_secs)) rtc_mmio.close() # Open am335x control module page ctrl_mmio = MMIO(0x44E10000, 0x1000) # Read MAC address mac_id0_lo = ctrl_mmio.read32(0x630) mac_id0_hi = ctrl_mmio.read32(0x634) print("MAC address: %04x%08x" % (mac_id0_lo, mac_id0_hi)) ctrl_mmio.close() Serial from periphery import Serial # Open /dev/ttyUSB0 with baudrate 115200, and defaults of 8N1, no flow control serial = Serial("/dev/ttyUSB0", 115200) serial.write(b"Hello World!") # Read up to 128 bytes with 500ms timeout buf = serial.read(128, 0.5) print("read %d bytes: _%s_" % (len(buf), buf)) serial.close() Installation with pip, $ pip install python-periphery with easy_install, $ easy_install python-periphery with setup.py, $ git clone https://github.com/vsergeev/python-periphery.git $ cd python-periphery $ python setup.py install Thanks, ~vsergeev Vanya Sergeev

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ANN: eGenix mx Base Distribution 3.2.9 (mxDateTime, mxTextTools, etc.)
by eGenix Team: M.-A. Lemburg Aug. 27, 2015

Aug. 27, 2015

________________________________________________________________________ ANNOUNCING eGenix.com mx Base Distribution mxDateTime, mxTextTools, mxProxy, mxURL, mxUID, mxBeeBase, mxStack, mxQueue, mxTools Version 3.2.9 Open Source Python extensions providing important and useful services for Python programmers. This announcement is also available on our web-site for online reading: http://www.egenix.com/company/news/eGenix-mx-Base-Distribution-3.2.9-GA.html ________________________________________________________________________ ABOUT The eGenix.com mx Base Distribution for Python is a collection of professional quality software tools which enhance Python's usability in many important areas such as fast text searching, date/time processing and high speed data types. The tools have a proven track record of being portable across many Unix and Windows platforms. You can write applications which use the tools on Windows and then run them on Unix platforms without change due to the consistent platform independent interfaces. Contents of the distribution: * mxDateTime - Easy to use Date/Time Library for Python * mxTextTools - Fast Text Parsing and Processing Tools for Python * mxProxy - Object Access Control for Python * mxBeeBase - On-disk B+Tree Based Database Kit for Python * mxURL - Flexible URL Data-Type for Python * mxUID - Fast Universal Identifiers for Python * mxStack - Fast and Memory-Efficient Stack Type for Python * mxQueue - Fast and Memory-Efficient Queue Type for Python * mxTools - Fast Everyday Helpers for Python The package also includes the mxSetup module, which implements our distutils based package tool chain (including the tooling for our Python web installer technology), as well as a number of helpful smaller modules in the mx.Misc subpackage, such as mx.Misc.ConfigFile for config file parsing or mx.Misc.CommandLine to quickly write command line applications in Python. All available packages have proven their stability and usefulness in many mission critical applications and various commercial settings all around the world. For more information, please see the distribution page: http://www.egenix.com/products/python/mxBase/ ________________________________________________________________________ NEWS The 3.2.9 release of the eGenix mx Base Distribution is the latest release of our open-source Python extensions. It includes these fixes and enhancements: Fixes for all Python Builds --------------------------- * Fixed the DateTime value range to only cover dates which can be represented as broken down values. On 32-bit systems, the valid range now is from -5879608-01-01 to 5879609-12-31, on 64-bit systems from -25252734927766552-01-01 to 25252734927766553-12-31.Should be enough for most needs :-) * Fixed the DateTimeDelta value range to only cover deltas which can be represented as broken down values. On 32-bit systems, the valid range now is from -2147483647:00:00:00.00 to 2147483647:00:00:00.00, on 64-bit systems from -104249991374:07:36:32.00 to 104249991374:07:36:32.00. * Fixed a segfault on Windows when using .strftime() on a DateTime object with leap seconds. mxDateTime will now raise a ValueError instead, since the Windows C runtime strftime() doesn't handle leap seconds and segfaults. * Fixed a segfault on Windows when using .strftime() with an unsupported formatting code (e.g. %f). mxDateTime will now raise a ValueError instead, since the Windows C runtime strftime() doesn't like unsupported formatting codes or lone % at the end of the format string and causes a segfault. Thanks to Barry B for reporting this. Fixes for Python Debug Builds ----------------------------- * In this patch level release, we have significantly improved the compatibility of eGenix mx Base with Python debug builds, which we previously did not support. Regular Python builds are usually not affected. * Fixed crashes of several mx Base packages when using Python debug builds, which were due to the use of free lists. Free lists are disabled for Python debug builds now. * Several mx Base packages crashed during interpreter shutdown when using Python debug builds. * mxBeeBase: Fixed a memory allocation error when using Python debug builds. * mxDateTime crashed when using Python debug builds due to the use of free lists and a non-standard way of dealing with errors inside object constructors, bypassing the logic used by debug builds to trace object allocation. Thanks to Edson Tadeu M. Manoel for bringing this to our attention. * mxTools: Fix a segfault in napply() when using Python debug builds. Installation Enhancements and Fixes (via included mxSetup) ---------------------------------------------------------- Most of these enhancements and fixes are part of the Python web installer support we added to mxSetup a while ago. If you want to learn more about this web installer technology, please see this talk on the topic: http://www.egenix.com/library/presentations/PyCon-UK-2014-Python-Web-Instal… * Fixed traceback when building pure Python packages with mxSetup's bdist_prebuilt. * mxSetup's web installer now searches for "purepython" and "anyos" tags as fallback when looking for OS dependent packages. It also adds the "anyos" tag to all pure Python packages. * Refactored the web installer in mxSetup into a class for easier customization. * Added --unicode-aware parameter support to bdist_egg when used with setuptools. * mxSetup now always produces PEP 440 compatible version numbers (using mx_version()). * Prebuilt archives created on Linux2 will now load fine on Linux3 machines. Same for FreeBSD and other systems which retain backwards compatibility. * Prebuilt archives will now also be usable on compatible platforms, e.g. ones compiled on linux2 with linux3 systems and ones for freebsd8 with freebsd9 or freebsd10. * Fixed a bug in mxSetup which caused .pyc/.pyo not to get removed when using 'pip uninstall'. * Resolved an intermittent error related to hash seeds which sometimes caused prebuilt archives to not install correctly. Thanks to Albert-Jan Roskam for reporting this. * Added Raspberry Pi Ver. 2 support to mxSetup. * Added support for bdist_wheels to allow building wheels from source or from prebuilt packages using mxSetup. * Removed a spurious AttributeError warning showing up when installing egenix-mx-base prebuilt packages on Windows systems without C compiler. eGenix mx Base Distribution 3.2.0 was release on 2012-08-28. Please see the announcement for new features in the 3.2 major release compared to earlier releases: http://www.egenix.com/company/news/eGenix-mx-Base-Distribution-3.2.0-GA.html For a full list of changes, please refer to the eGenix mx Base Distribution change log and the change logs of the various included Python packages. http://www.egenix.com/products/python/mxBase/changelog.html ________________________________________________________________________ UPGRADING We encourage all users to upgrade to this latest eGenix mx Base Distribution release. If you are upgrading from eGenix mx Base 3.1.x, please see the eGenix mx Base Distribution 3.2.0 release notes for details on what has changed since the 3.1 major release. http://www.egenix.com/company/news/eGenix-mx-Base-Distribution-3.2.0-GA.html ________________________________________________________________________ LICENSE The eGenix mx Base package is distributed under the eGenix.com Public License 1.1.0 which is an Open Source license similar to the Python license. You can use the packages in both commercial and non-commercial settings without fee or charge. This open source distribution package comes with full source code. ________________________________________________________________________ DOWNLOADS The download archives and instructions for installing the packages can be found on the eGenix mx Base Distribution page: http://www.egenix.com/products/python/mxBase/ If you want to try the package, please jump straight to the download instructions or simply run "pip install egenix-mx-base". As always, we are providing pre-built binaries for all common platforms: Windows 32/64-bit, Linux 32/64-bit, FreeBSD 32/64-bit, Mac OS X 32/64-bit. Source code archives are available for installation on all other Python platforms, such as Solaris, AIX, HP-UX, etc. To simplify installation in Zope/Plone and other egg-based systems, we have also precompiled egg distributions for all platforms. These are available on our own PyPI-style index server for easy and automatic download. Please see the download instructions for details: http://www.egenix.com/products/python/mxBase/#Download Whether you are using a prebuilt package or the source distribution, installation is a simple "python setup.py install" command in all cases. The only difference is that the prebuilt packages do not require a compiler or the Python development packages to be installed. ________________________________________________________________________ SUPPORT Commercial support contracts for this product are available from eGenix.com. Please see http://www.egenix.com/services/support/ for details about our support offerings. ________________________________________________________________________ MORE INFORMATION For more information on the eGenix mx Base Distribution, documentation and installation notes, please visit our web-site: http://www.egenix.com/products/python/mxBase/ About eGenix (http://www.egenix.com/): eGenix is a database focused software project, consulting and product company delivering expert services and professional quality products for companies, Python users and developers. 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. Enjoy, -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Aug 27 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/ ________________________________________________________________________ 2015-08-19: Released mxODBC 3.3.5 ... http://egenix.com/go82 ::::: Try our mxODBC.Connect Python Database Interface for free ! :::::: 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/

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ruamel.orderddict a C implementation of Foord/Larosa's odict and superset of standard library OrderedDict
by Anthon van der Neut Aug. 25, 2015

Aug. 25, 2015

After once again multiple (this time only three) years, I am happy to announce version 0.4.9 of ruamel.orderddict. Main enhancement since the original release in 2007 is the addition of the viewkeys/viewitems/viewvalues methods as added to the dictionaries in Python 2.7 The package can be installed from PyPI, and wheels are available for Windows. https://pypi.python.org/pypi/ruamel.ordereddict Sources are hosted on bitbucket. --------------------- >From the blurb on ruamel.ordereddict home-page: This is an implementation of an ordered dictionary with Key Insertion Order (KIO: updates of values do not affect the position of the key), Key Value Insertion Order (KVIO, an existing key's position is removed and put at the back). Sorted dictionaries are also provided. Currently only with Key Sorted Order (KSO, no sorting function can be specified, but a transform function to be applied on the key before comparison can be supplied). It implementation is directly derived from dictobject.c and its speed is 5-10% slower than dict() and 5-9 times faster than Larosa/Foord excellent pure Python implemention. With a little helper wrapper (because of incompatibilities in the more recently implemented OrderedDict in the standard library), ruamel.ordereddict will also pass all unittests for OrderedDict.

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[RELEASED] Python 3.5.0rc2 is now available
by Larry Hastings Aug. 25, 2015

Aug. 25, 2015

On behalf of the Python development community and the Python 3.5 release team, I'm relieved to announce the availability of Python 3.5.0rc2, also known as Python 3.5.0 Release Candidate 2. Python 3.5 has now entered "feature freeze". By default new features may no longer be added to Python 3.5. This is a preview release, and its use is not recommended for production settings. You can find Python 3.5.0rc2 here: https://www.python.org/downloads/release/python-350rc2/ Windows and Mac users: please read the important platform-specific "Notes on this release" section near the end of that page. Happy hacking, //arry/

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ANN: ScratchABit - Interactive disassembler
by Paul Sokolovsky Aug. 23, 2015

Aug. 23, 2015

Hello, ScratchABit is pure-Python, interactive disassembler (direct-manipulation, textmode UI), suitable for reverse engineering work of malware analysis, security research, developing open-source drivers, etc. ScratchABit is architecture-independent and supports particular CPU using plugins. Plugin API used is compatible with IDAPython, which is pretty much an industry standard and allow easy reuse of the wealth of plugins developed by community. A sample plugin for Intel x86 (32 or 64 bit) is included, based on pure-Python PyMsasid disassembly engine. ScratchABit is distributed as a git repository with submodules pulling in any required components (plugins), allowing quick start even for people who aren't familiar with Python (Python3 is the only requirement). Project is at version 0.9 currently. https://github.com/pfalcon/ScratchABit -- Best regards, Paul mailto:pmiscml@gmail.com

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Nikola 7.6.4 is out!
by Roberto Alsina Aug. 22, 2015

Aug. 22, 2015

On behalf of the Nikola team, I am pleased to announce the immediate availability of Nikola v7.6.4. It fixes some bugs and adds new features. What is Nikola? =============== Nikola is a static site and blog generator, written in Python. It can use Mako and Jinja2 templates, and input in many popular markup formats, such as reStructuredText and Markdown — and can even turn Jupyter (IPython) Notebooks into blog posts! It also supports image galleries, and is multilingual. Nikola is flexible, and page builds are extremely fast, courtesy of doit (which is rebuilding only what has been changed). Find out more at the website: https://getnikola.com/ Downloads ========= Install using `pip install Nikola` or download tarballs on [GitHub][] and [PyPI][]. [GitHub]: https://github.com/getnikola/nikola/releases/tag/v7.6.4 [PyPI]: https://pypi.python.org/pypi/Nikola/7.6.4 Changes ======= Features -------- * Checking remote links also checks redirects (nikola check -lr) * Update suggested license to its latest version (Issue #1950) * Add Punjabi language, by Jasdeep Singh (Issue #1940) * New option to use custom, and several ``TEASER_END`` values Bugfixes -------- * Rewrite srcset links (Issue #1939) * Add dependencies for include tag in Mako (Issue #1956) * Don’t duplicate BLOG_TITLE in the front page title (Issue #1952) * Escape instead of strip HTML in titles (Issue #1952) * Make LINK_CHECK_WHITELIST apply to remote link checks * Make STORY_INDEX work together with PRETTY_URLS (Issue #1949) * Refactor new_post to match lazy plugin loading (Issue #1943) * Make Nikola startup faster by not loading useless plugins (Issue #1825) * Ignore sliced multibyte characters when reading metadata for sitemaps * Fix NameError caused by failed import in auto plugin.

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PyDev 4.3.0 released
by Fabio Zadrozny Aug. 20, 2015

Aug. 20, 2015

Release Highlights: ------------------------------- * Fixed parser for Python 3.x to support async and await as regular names too (PyDev-593). * The new search dialog now has a 'whole word' option which automatically adds `*` to the search * Search backend updated to Lucene 5.2.1 (instant searches on huge codebases) * When bringing up the search dialog the search text is initially selected. What is PyDev? --------------------------- PyDev is an open-source Python IDE on top of Eclipse for Python, Jython and IronPython development. It comes with goodies such as code completion, syntax highlighting, syntax analysis, code analysis, refactor, debug, interactive console, etc. Details on PyDev: http://pydev.org Details on its development: http://pydev.blogspot.com What is LiClipse? --------------------------- LiClipse is a PyDev standalone with goodies such as support for Multiple cursors, theming, TextMate bundles and a number of other languages such as Django Templates, Jinja2, Kivy Language, Mako Templates, Html, Javascript, etc. It's also a commercial counterpart which helps supporting the development of PyDev. Details on LiClipse: http://www.liclipse.com/ Cheers, -- Fabio Zadrozny ------------------------------------------------------ Software Developer LiClipse http://www.liclipse.com PyDev - Python Development Environment for Eclipse http://pydev.org http://pydev.blogspot.com PyVmMonitor - Python Profiler http://www.pyvmmonitor.com/

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