Mailman 3 August 2015 - Python-announce-list

[RELEASED] Python 3.5.0rc1 is now available
by Larry Hastings 10 Aug '15

10 Aug '15

On behalf of the Python development community and the Python 3.5 release team, I'm relieved to announce the availability of Python 3.5.0rc1, also known as Python 3.5.0 Release Candidate 1. 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 3.5.0rc1 here: https://www.python.org/downloads/release/python-350rc1/ 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: Eliot 0.8, the logging system with causality
by Itamar Turner-Trauring 10 Aug '15

10 Aug '15

Most logging systems can tell you what happened; Eliot tells you *why* it happened: $ python linkcheck.py | eliot-tree 4c42a789-76f5-4f0b-b154-3dd0e3041445 +-- check_links@1/started `-- urls: [u'http://google.com', u'http://nosuchurl'] +-- download@2,1/started `-- url: http://google.com +-- download@2,2/succeeded +-- download@3,1/started `-- url: http://nosuchurl +-- download@3,2/failed |-- exception: requests.exceptions.ConnectionError |-- reason: ('Conn aborted', gaierror(-2, 'Name unknown')) +-- check_links@4/failed |-- exception: exceptions.ValueError |-- reason: ('Conn aborted.', gaierror(-2, 'Name unknown')) And here's the code that generated these logs (eliot-tree <https://warehouse.python.org/project/eliot-tree/> was used to render the output): import sys from eliot import start_action, to_file import requests to_file(sys.stdout) def check_links(urls): with start_action(action_type="check_links", urls=urls): for url in urls: try: with start_action(action_type="download", url=url): response = requests.get(url) response.raise_for_status() except Exception as e: raise ValueError(str(e)) check_links(["http://google.com"], ["http://nosuchurl"]) Interested? Read more at https://eliot.readthedocs.org/. Eliot is released under the Apache License 2 by ClusterHQ <https://clusterhq.com>, the Container Data People. We're hiring! <https://clusterhq.com/careers/>

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Nikola v7.6.3 released
by Roberto Alsina 08 Aug '15

08 Aug '15

On behalf of the Nikola team, I am pleased to announce the immediate availability of Nikola v7.6.3. 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/v7.6.3 [PyPI]: https://pypi.python.org/pypi/Nikola/7.6.3 Features * New translations: Serbian and Bosnian, by saleone * Added mechanism for rest extensions to depend on configuration options (Issue #1919) * Render Jupyter notebooks (ipynb) in listings (Issue #1900) Bugfixes * Handle folders without trailing slashes in nikola auto (Issue #1933) * Set a base element to aid relative URL resolution, stripped on-the-fly when using the auto or serve command to view site locally. (Issue #1922) * Rebuild archives when post slugs and titles change (Issue #1931) * Handle special characters in URLs in nikola auto (Issue #1925) * Avoid Broken Pipe error in nikola auto (Issue #1906) * "nikola auto" serving implicit index.html with wrong mime type (Issue #1921) * Handle non-integer shutter speeds and other variables in WordPress importer (Issue #1917)

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ANN: BASICS v.1.0, a simple encryption scheme
by Mok-Kong Shen 07 Aug '15

07 Aug '15

BASICS is a simple encryption scheme (with authentication) based on permutations and dynamic substitutions of characters. In order that the encryption operations involved could be most easily understood by the common users, the scheme highly closely follows the simple and popularly known classical schemes of transposition and substitution but which nonetheless, due to the high dynamics realized via corresponding computer programming means, are strong enough to resist attacks of the adversary with modern analysis resources. The code is available at: http://s13.zetaboards.com/Crypto/topic/7425974/1/ M. K. Shen

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ANNOUNCING: Availability of a pre-alpha release of a Python CLI API and associated character-mode emulation of the pixel-mode wxPython GUI API
by Richard S. Gordon 06 Aug '15

06 Aug '15

Members of the Python developer community might find some useful information, programming techniques, building block modules, packages and tools in the toolkit I’ve released via github: https://github.com/ <https://github.com/>rigordo959/tsWxGTUI_PyVx_Repository The repository includes Python 2x and 3x versions of: A cross-platform Python 2x & Python 3x based Command Line Interface (CLI) API which works on various releases of Linux, Mac OS X, Microsoft Windows and Unix. A cross-platform Python 2x & Python 3x based character-mode emulation of the pixel-mode "wxPython" Graphical User Interface (GUI) API which works on various releases of Linux, Mac OS X, Microsoft Windows (requires Cygwin plugin) and Unix. Python version-specific Site-Packages (e.g. installable via commands such as "python2.6.8 setup.py install" or "python2.7.9 setup.py install” in "./tsWxGTUI_PyVx_Repository/SourceDistributions/Site-Packages/Python-2x”) which augments the standard Python Global Module Index Python version-independant Developer-Sandboxes (e.g. run test and tool applications in "./tsWxGTUI_PyVx_Repository/SourceDistributions/Developer-Sandboxes/Python-3x/tsWxGTUI_Py3x") which facilitates experimentation without corrupting installed Site-Packages. Python 2x & Python 3x based applications and instructions in "./tsWxGTUI_PyVx_Repository/Documents/Demo.txt" that demonstrate the Toolkit’s local and remote usage and coding techniques. A single "python setup.py sdist” command cannot be used to release the repository via PyPI. Separate “python setup.py install” commands can be used to install the Python 2x and Python 3x site-packages. However, it is most important to keep a single repository because development and maintenance are facilitated when source code components share a common API and a single document set. Unlike host operating systems, which provide native GUI services and standard terminal emulators (8-/16-color xterm-family and non-color vt100-family without interpreting mouse input), this Toolkit emulates the wxPython 68-color palette, and association of mouse input with wxPython triggering objects (such as buttons, checkboxes, radio buttons, scroll bar buttons and sliders/gauges). Though its still a work in progress (pre-alpha), I"ve released the existing source code, documentation, man-pages and draft engineering notebooks in order to solicit feedback on the features, performance and priorities of features to implement next. Richard S. Gordon ----------- CLI API ----------- A report packager/module that formats date, time, file size and nested dictionaries for creating message time stamps and configuration logs. An exception package/module for mapping various exceptions into Unix-style 8-bit error codes to facilitate coordination of multiple Python scripts. A logger package/module which creates a dated and time stamped directory in the directory from which a Python application is launched which will capture stdout/stderr, debug and curses messages. A Platform Run Time Environment package/module which builds and displays a formatted nested dictionary of Python system and host platform information. An Operator Settings Parser which extracts key-word value pair options and positional arguments using the latest available Python parser (argparse, optparse of getopt) with example code for each that can support: -h/—help -a/—about -v/—version -V/—Verbose -d/—debug ----------- GUI API ----------- A curses-based character mode emulation of the pixel-mode wxPython Graphical User Interface API It provides a pixel-mode “wxPython" feeling on character-mode 8-/16-color (xterm-family) & non-color (vt100-family) terminals and terminal emulators. It supports: Launching from command line interface mode Frames, Dialogs, Scrolled Windows Panels Buttons, CheckBoxes, Radio Boxes/Buttons Text Entry and Password Entry (still under development) Splash Screen display constructed or re-used during launch 68-color palette (mapped into 8-/16-color Curses palette) Logging to Screen and Files Event Handling (not yet general purpose) Task Bar (not yet capable of changing focus) Position and dimensions accepted in Pixel (default) or Character (option) cell units. Keyboard and mouse input works with: Curses CLI applications on 32-/64-bit host platform: "Terminal” on GNU/Linux "Terminal” on Mac OS X “Console” on Microsoft Windows with “Cygwin”, GNU/Linux-like plug-in from Red Hat “Terminal” on Unix nCurses CLI applications on 32-/64-bit host platform: "XTerm" and "UXTerm” on GNU/Linux "iTerm2" on Mac OS X “Mintty” on Microsoft Windows with “Cygwin”, GNU/Linux-like plug-in from Red Hat

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ANN: eGenix Talks & Videos: Python Idioms Talk
by eGenix Team: M.-A. Lemburg 04 Aug '15

04 Aug '15

________________________________________________________________________ ANNOUNCING eGenix Talks & Videos: Python Idioms Talk EuroPython 2015 This announcement is also available on our web-site for online reading: http://www.egenix.com/company/news/EuroPython-2015-Python-Idioms.html ________________________________________________________________________ EuroPython 2015 in Bilbao, Basque Country, Spain Marc-André Lemburg, Python Core Developer, one of the EuroPython 2015 organizers and Senior Software Architect, held a talk at EuroPython focusing on programmers just starting with Python. We have now turned the talk into a video presentations for easy viewing and also released the presentation slides. ________________________________________________________________________ Python Idioms to help you write good code Talk given at the EuroPython 2015 conference in Bilbao, Basque Country, Spain, presenting Python idioms which are especially useful for programmers new to Python. Talk video and slides: http://www.egenix.com/library/presentations/EuroPython-2015-Python-Idioms/ Python focuses a lot on writing readable code and also tries to make solutions obvious, but this doesn’t necessarily mean that you cannot write unreadable code or design your code in ways which makes it hard to extend or maintain. The talk shows some useful idioms to apply when writing Python code, how to structure your modules and also goes into details on which techniques to use and which to think about twice, based on 20 years of experience writing Python. -- Marc-André Lemburg More interesting eGenix presentations are available in the presentations and talks community section of our website. http://www.egenix.com/library/presentations/ ________________________________________________________________________ PYTHON COACHING AND CONSULTING If you are interested in learning more about these advanced techniques, eGenix now offers Python project coaching and consulting services to give your project teams advice on how to design Python applications, successfully run projects, or find excellent Python programmers. Please contact our eGenix Sales Team for information. http://www.egenix.com/services/ ________________________________________________________________________ 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 project 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, Aug 04 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/ ________________________________________________________________________ ::::: 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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