Python-digest # 10. News, interesting projects, articles and interviews [January 10, 2013 - January 17, 2014]

The jubilee, the tenth issue of the latest news about python and nearby technologies is interesting because some news was added to it via the news feed form added by unregistered users, introduced by axre1. Very pleased that she begins to work. Join now!

There is a small subtlety that should be clarified. I was sent a link to a wonderful article examining code objects , but it did not get into the issue, since it was written in March last year, that is, in fact, it is not news.

Thank you owlman for despite the fact that the information I had not provided on time about the priority news, he still drew an illustration.
')
Experimentally we enter a mark of Russian-language articles with a flag, but we don’t check English-language articles. This should reduce the number of checkboxes. At the end of the post, you can vote for and against this innovation.

Articles and Interviews

• Overcoming the problem of transferring excess data when using WebSockets
  The traditional way of exchanging messages python-javascript is not optimal in terms of traffic, and therefore the speed of exchange. The article offers an analysis of the situation and methods of reducing the overhead projector.
• An example of using Django with multiple databases
  
• Export favorites on Habré in pdf
  
• Testing Django Applications with Docker
  
• Distribute must die
  Another long article on why the old setuptools are bad, how to get rid of them and how to make this deliverance less painful with the new pip, twine and virtualenvwrapper
• Updated Hello Plone
  The author updated the post-description of a simple application on the Plone web framework
• State support in the decorator using a class
  The sixth post from the expanded series of articles on decorators from Gram Dampltop
• What i hate in python
  A small post about things that are annoying in your favorite programming language, and which are not very
• Zato = Agile ESB + SOA + REST + Cloud
  The Linux Journal publication about Zato, a platform that effectively unites a stack of popular web technologies to develop your applications, is open. Python examples
• Missing @synchronized decorator
  A decorator is proposed, which will mark the function as synchronous in a multi-threaded application.
  Also in the sequel: Using @synchronized as context manager
• Race conditions in SQLAlchemy - create get_one_or_create () method
  
• Subtleties of using Python, Part 10. 2D Graphics and GUI-scripts
  A library for creating GUI applications in Python - wxPython and two related projects PyGame and PyZenity
• Subtleties of using Python, Part 9. GUI application development
  Overview of tools for creating GUI applications available in Python, and general principles for building such applications.
• Introduction to web development with Pyramid Part 5
  part 6
  part 7
  
• Again about Python data types: objects, values ​​and types (object, values ​​and types)
  In short, the types in Python are divided into either built-in and user-defined, or mutable and immutable (they didn’t find a suitable Russian translation right away). Well, if a little more, then read the article.
• Who am I - game for facebook part 3
  Continuation of a series of articles
  part 2
  part 1
  
  
• 9 libraries for image search
  
• Creating zip modules in python
  Packaging of modules and possible problems with their distribution / use
• Decorators with Arguments
  A way to pass arguments to a decorating function and store values ​​between calls.
• Design patterns for beginners
  
• Comments should be full expressions.
  The author rightly argues that comments on the code should be made with full-fledged expressions / sentences that fully convey the idea and easily expand, so as not to produce even more unreadable and useless comments on the principle of broken windows.
• Draw one pixel on PySDL2
  PySDL2 is an alternative to pysdl and is a wrapper for SDL2 using ctypes and has no licensing restrictions inherent in pysdl
• A simple interpreter from scratch in Python (part 3)
  Continuation of a series of articles on how to develop an interpreter of your own programming language in python
• psutil 2.0
  An article on practical applications of a cross-platform library for obtaining information on system load / usage (CPU, memory, disks, network)
• Deploy using Salt
  An example of organizing a django application deployment on the Salt + Vagran technology stack
• Studying ØMQ using pyzmq
  A serious article documentation about the library ZeroMQ
• Ninja-IDE 3.0 - Improved Architecture
  An article about the alpha version of the IDE major release - about features and enhancements

Interesting projects, tools, libraries

• birdy
  Another interesting Twitter client library
• picka
  A library that generates random data of a different type for testing purposes.
• Booby
  Isolated library of frameworks and unnecessary dependencies for modeling and validating data
• Webgl earth
  Implementation of the famous demo of the 3D model of the globe in python
• django-push-notifications
  Minimal Django application that can send messages via APNS and GCM.
• tqdm - show the progress of a long operation in the console
  
• Commonregex
  The library simplifies working with frequently used regular expressions (selection from the test links, dates, ip-addresses, etc.)
• tradeware
  Platform for creating high-frequency trading cryptocurrency bots

Releases

• Ferris 2.0
  Ferris is a framework for convenient work with Google App Engine. In the new major version there are a lot of improvements and additions.
• Tornado 3.2
  Added a whole mountain of new modules, in particular tornado.platform.asyncio
• VirtualenvWrapper 4.2
  A set of tools for convenient management of virtual environments got to the version, which is unlikely to believe in the ENT, but nevertheless