Python-digest # 27. News, interesting projects, articles and interviews [May 12, 2014 - May 18, 2014]

Too much now digests on Habré divorced, but this is something about python! Today both about TDD and about PyQT and about MPTT - and in general a decent amount of decent letters for every taste.

Thank you owlman75 for preparing the illustration - it was not given the first time, but, as always, very, very well. Thanks to those who send news - I am gratefully publishing them.

During the preparation of digests in the database has accumulated more than 800 articles. They have attributes to which section they belong, in which issue they are published, where they are taken from. Are there any willing to build beautiful diagrams based on this data? I think readers would be interested to see trends and distributions. I myself, admit, it is curious, that is just to do it, apparently, there will be no time for anyone.
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Articles and Interviews

• Top 10 reports from PyConRu 2013
  
• Python Compiler Performance Comparison
  The test code (bubble sorting) and compiler test results are shown: Cython, Numba, and. Parakeet
• Organization code in the application
  Answers to the questions: why, when and even how
• Get rid of repeat text in long_description for pypi
  The author proposes an interesting method of maintaining the actual extended package description based on the markup in a separate .rst file.
• Eliminate side effects in the implementation of state machines
  The actual implementation of state machines is described by the author in the links that can be found at the beginning of the article.
• How nice to display xml using lxml
  Does the community know a simpler way of accurate formatting (tabs, line breaks)?
• Draw bounding areas
  Using shapely for graphical analysis of geographic data
• Break and understand 2
  In an article full of examples of code, the author studies the behavior of ctypes for Python 2.7 and thereby recognizes the mechanics of the interpreter. First part
• One use of annotations
  Here, annotations are NOT decorators.
• Mega-Tutorial Flask, Part 5: User Login
  
• Internal cuisine of PyCon Russia and international relations
  
• Everything you didn't know about Unicode
  
• Application docking
  Adapting a python application to run in AWS
• We learn PyQt step by step
  Actually a list of links on which it is proposed to walk
• Learning TDD on Flask. Part two
  The first part is also available on the website of the author.

Books and documentation

• Aggregator asyncio tools
  Documentation, videos, links to libraries using asyncio
• Try pyramid
  New Pyramid framework site

Interesting projects, tools, libraries

• Full text search in sqlite
  A small example of sharing peewee and FTS sqlite extensions to organize searches
• Python gamma generator (Kivy)
  A project inspired by this post.
  There was a JS, there is a python. Works in Mac OS, Linux, Windos, Android.
  In the process of active completion file.
  Why is it interesting: the same code works on all platforms, incl. mobile, almost without crutches. Draws an acceptable UI, does not contain Qt.
• Binary tree traversal, for SQLAlchemy
  
• spitit - forum engine for django
  
• sqlalchemy_mptt - trees on SQLAlchemy
  
• py2exe for python3
  
• typedecorator - data type checking
  A set of decorators to simplify the control of input parameters and the results returned by functions
• scikit-bio
  Library for data analysis, adapted for use in biology

Releases

• Python 3.4.1
  
• Nikola 7
  Nikola is a generator of static sites and blogs
• Twisted 14.0.0
  
• IMAPClient 0.11