Python-digest # 14. News, interesting projects, articles and interviews [February 9, 2014 - February 16, 2014]

We continue to cover the most significant events in the world of python and nearby technologies over the past week. This time, a couple of abstract articles from Ronaher and Biking, one of which has already been transferred to Habré. Many interesting projects and materials from different areas of interest. In particular, the project to improve support for PostgreSQL in Django, which has gained an excellent move on the kickstarter. Well, a little funny - like this cookie that reddit liked so many readers.

Thanks to owlman75 for the release illustration. I wish everyone a productive work week.

Send news for publication in the digest here and then they will not disappear anywhere.
')
The next issue will be February 23rd.

Articles and Interviews

• AES-128. Details and implementation
  It tells in detail about the components of the algorithm, a small immersion into the materiel is made and an example of implementation is given
• Saying goodbye to python
  Ian Biking is an active member of the Python community, the author of pip, virualenv, Paste, WebOp writes a farewell post, leaving this technology in JavaScript.
• HTTP 2.0
  A short story about hyper - a library supporting http 2.0
• Jinja2 outside web
  
• Simple keylogger for Windows
  
• Celery style task queue with 55 lines of code
  The article is interesting not so much by the implementation itself as by the approach and example of use in conjunction with ZeroMQ and PiCloud
• How to make a rotation of logs
  An example of using logging.handlers.RotatingFileHandler
• Dependency injection
  Why do you need dependency injection? It reduces the connectivity of components in an application and simplifies testing. Some developers have the opinion that dependency injection is needed only in large projects and that it greatly complicates the programs. The author on the example of using the library python-inject tries to show that the latter is not always true
• How to write a library
  The training material shows an example of the implementation of a library for working via FTP and publishing it on PyPI
• Why python is slow. Part 1. Data structures
  In the first of the promised series of articles, the author examines the performance problems of the data structures of the language compared to C and explains why approximately the same code in different programming languages ​​works at different speed
• 14 mini web frameworks
  A brief review with pictures of each of the projects discovered by the author
• Developing a cross-platform application on Qt, PyQt and PySide - part 4
  This time about database support
• Using Sonar for static code analysis
  
• About programmer communities
  Armin Rahner writes about his journey to Python and his community.
• The function simplifies the use of multiple context managers for a block of code
  In fact, the author gives an example of the implementation of a function that takes a list of context managers and can be used as an argument for with
• Exception Encapsulation
  The technique of writing more readable code throwing an exception based on contextlib.contextmanager
• Strict data type checking
  The author introduces the sphinx_typesafe library which allows describing the data types of the function parameters and the results returned by them for clearer documentation of interfaces.
• Performance problems for decorators
  The author examines and compares the performance of several ways to implement decorators, including with the removal in the C-module
• oAuth2
  A practical guide with pictures and code examples for Github and Facebook
• Algorithm unsubscribe from something on Django
  An example of solving a traditional task of unsubscribing, for example, from a mailing list using a special secret link
• Simple WebSockets on Flask and Gevent
  
• Why do you need encryption
  The author of the PyPy-compatible cryptography library shares thoughts about how he came to the creation of this module and why it is needed at all.

Interesting projects, tools, libraries

• Kickstarter project for extended support for PostrgeSQL in Django
  
• reversi-ai - teach a computer to play against you in reversi
  
• Obraz - Jekyll compatible static site generator
  
• python-braces - do you miss the brackets?
  Contender for the title of the most useless project. Implementing python interpreter with C-like support for curly braces in syntax
• pyEmbed
  A library for embedding content from third-party services into your web pages (such as YouTube videos, images from Frickr, etc.). Works according to the oEmbed standard
• tinytag
  A simple library for extracting meta-information from audio files.

Releases

• Python 3.3.4
  
• Typographer Muravyova 3.2
  A wonderful library for formatting text using the norms, rules and specifics of the Russian language and screen typography has been updated to version 3.2.
  
• Anaconda 1.9
  A new version of the popular package manager for scientific, mathematical, engineering calculations and data analysis has been released.
• PyCharm 3.1.1
  

Conferences, events, developer meetings

• Kharkiv.py # 10 - March 1, 2014
  Kharkiv Python Community is a community of people who are not indifferent to the Python programming language.
• 17th Moscow Django Meetup
  February 20th will be the first in 2014 and the 17th MoscowDjango Meetup. Unfortunately, not all plans can be realized due to the busy work schedule of the organizers, but we still hope to please you with good news and positive changes in the new year.