Python-digest # 28. News, interesting projects, articles and interviews [May 19, 2014 - May 25, 2014]

Here, finally, and the latest news about python and nearby technologies. This time we will prepare packages, debug regular expressions, optimize the number of database requests, play and solve riddles. In general, entertainment for every taste.

Many thanks to everyone who helps me in word and deed on the tool for preparing a digest. I know about the mailing engine, which is already in the new branch, but so far my hands are literally nothing. Special thanks to owlman75 for the picture to release.

While preparing this digest, I stumbled upon a rather amusing article that one should not flatter oneself with the simplicity with which one can learn to program. It is, of course, useless, but I sometimes meet interesting things that are not directly related to python and are worthy of attention. I want to ask and ask you: is it worth it to have a special section for them and publish it in a digest?
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Articles and Interviews

• Dictionary generators
  
• Create a package for the library
  Quite a large and detailed article. No less interesting comments to it.
• Monitoring the execution of management teams in Django
  
• Redefinition of methods
  A small article answering the questions how and why methods are redefined in python
• Nine practical examples of using filter and list generators
  
• Introduction to Python, machine learning and the NLTK library
  
• Key differences 2.x from 3.x with examples
  
• Unexpected things
  A few interesting code examples that are asked questions at an interview in Yandex
• Microblog on microfilmvorki
  Twitter killer on Flask and Jinja. Almost.
• os.urandom, CPython, Linux and rake
  An instructive history of errors in the implementation of the urandom function from the os module in CPython on UNIX-like operating systems (Linux, Mac OS X, etc.).
• Tips for beginners to use python in science
  
• How to download and continue downloading a file after a pause using urllib
  
• Introduction to the development of android-applications on kivy
  
• Pautomount - a daemon for automatic mounting, running scripts and all such other things
  
• Mega-Tutorial Flask, Part 6: Profile page and avatar
  The seventh part is also available:
  Flask Mega-Tutorial, Part 7: Unit Testing
• A fresh look
  Let the look and not the most recent, but quite an extensive article with funny illustrations about optimizing the number of queries to the database using Django ORM. The second part is about creating additional views (VIEW) at the database level for the same purpose. Nothing is said about caching, non-relational databases, denormalization, in-memory databases, stored procedures
• Exploring the asynchronous model of workers in gunicorn
  
• Gevent manual
  

Video

• Python Meetup: April Meeting
  - “Development of mobile applications in Python” from Dmitry Ovchinnikov
  - “Python for the lazy, or how to make your life easier” by Nikita Grishko
  - “Unittesting. How? "By Maxim Schepelin
  - “Pathlib. Little Python 3.4 Goodies by Alexey Cherkes

Books and documentation

• Copy module - superficial and deep copying of objects
  Copy module documentation in Russian.
• 51 free ebook on python
  

Interesting projects, tools, libraries

• ruler - measure console output
  A fun library that adds columns to the console according to specified rules.
• Eliot - library for advanced logging
  Previously, it was a closed project - now it is available on github and pip.
• pythex - interactive regular expression debugging
  
• Pygame platformer with 1810 lines
  According to the link code, but you can watch the gameplay video
• pyp - a great helper in the console
  Awk-style Sony imaging tool that uses python. Also available is a beautiful video demonstration of functionality.
• Brackets 0.39
  New release of the popular and free editor brackets
• data_dispenser - we get consistent data from different sources
  Represents data from different types of sources / extensions JSON, CSV, YAML in the form of a list of dictionaries.
• rq.filter - update dependencies in time
  An interesting service that sends notifications when packages are updated according to the rules specified in requirememnts.txt for pip

Releases

• mod_wsgi 3.5 - security update
  
• PyDev 3.5.0
  Improved support for PyUnit and Django 1.7