Python-digest # 25. News, interesting projects, articles and interviews [April 28, 2014 - May 4, 2014]

Jubilee 25th edition for habra selection of articles, releases, descriptions of interesting projects about python and nearby technologies.

Thank you owlman75 for the May Day illustration. By the way, I congratulate everyone on May Day and the upcoming Victory Day.

I thank the habrayusers for the pluses in their last publication, which turned out to be surprisingly many, but it turns out that I have not finished reading the rules and one post with 50+ is not enough to withdraw money - there should be at least two of them. But nothing, it was still very nice.
')

Articles and Interviews

• Writing an extension for SCons
  Minimal description of what SCons needs to find your extension.
• Introduction to SQLAlchemy
  
• In python, fast data structures
  Article confirming this statement with the help of tests. Also mentioned is an interesting module CyToolz java toolz port and used to increase the performance of data structures.
• Using mock.patch in automated testing
  Quite an extensive article with lots of code examples.
• A guide for beginners about namespaces, scope and LEGB rule
  
• We work with pip
  I think everyone uses pip and knows the basics.
  Let's see what else this team can do.
• Flask Development - Part 2
  This time about Postgres, SQLAlchemy and Alembic
• Combinatorial Generators
  Everything is based on examples and quite clearly.
• What happens when a python project comes up against the performance of a language implementation
  Extensive post about a bad choice in favor of Python in a single project (see unsignedlong comment with an important clarification)
• PyCon Russia 2014 Program
  
• Designing binary and text APIs for py2k and py3k at the same time
  The article is more about problems with strings, but it will help someone not to lose time on it.
• Permanent work or constant waiting
  Another article about multithreading, GIL and why not everything is so bad sometimes
• Easy python web framework: Bottle
  
• Exception management in C ++ and Python or readiness for surprises
  
• Package Aliases in PyPI
  
• Processing data arriving in real time on D3 and Python
  An interesting example of combining module subsystems to solve an extraordinary task.

Interesting projects, tools, libraries

• Reeborg's world
  A project for learning the basics of algorithms in several programming languages
• haxe can now output to python3
  Haxe is a programming language close to ActionScript and a set of translators of code in this language into code in other PL (C ++, C #, Flash, Java, JavaScript, PHP)
• arange - range for non-integer numbers
  
• modulefinder - a way to get a list of module dependencies
  
• PyKinect
  Binding to the Kinect SDK and examples of its use in PyGame

Releases

• WSME 0.6.1
  Module simplifies the creation and support of REST API
• stopit 1.1.0
  The library is able to stop immediately or by timeout code execution in child processes
• python-colormath 2.0
  Library for converting the values ​​of different color schemes among themselves
• BinPy 0.3.1
  Electronic circuit simulation project. New release expands functionality and adds support for IPython Notebook
• Typograph Muravyev 3.3
  A new release of a wonderful library:
  Improved dot placement rule at the end of a sentence;
  the optical alignment is turned on by default and the handling of the opening quote is improved;
  Fixed a bug in the work of cuts "volt";
  the typographer no longer confuses where to put the closing quotation mark, and where the inch sign is;
• Dennis 0.4
  A tool that simplifies application localization based on gettext
• Canopy 4.1
  
• Reportlab 3.1