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4th Week of 2021



  • New: Explain how to check if a loop ends completely.
  • New: Explain how to merge lists and dictionaries.
  • New: Explain how to create your own exceptions.


  • New: Explain how to set cookies and headers in responses.


  • New: Explain how to generate your own attributes.

    We earlier used lazy_attribute but if you want to use Faker inside the attribute definition, you're going to have a bad time. The new solution uses the creation of custom Fake providers.


  • New: Explain how to create your own provider.

    Useful to generate custom objects for testing purposes.

Python Snippets

  • Correction: Explain how to show the message in custom exceptions.
  • New: Explain how to import a module or object from within a python program.


  • New: Introduce the pexpect python library.

    A pure Python module for spawning child applications; controlling them; and responding to expected patterns in their output. Pexpect works like Don Libes’ Expect. Pexpect allows your script to spawn a child application and control it as if a human were typing commands.

Prompt Toolkit

  • New: Introduce the tui python library.

    Useful to build text-based user interfaces, it allows the creation of intelligent prompts, dialogs, and full screen ncurses-like applications.


  • New: Warn on the lack of TypeDict support.


  • New: Introduce tui python library.

    questionary is a Python library for effortlessly building pretty command line interfaces. It makes it very easy to query your user for input.


  • New: Introduce the requests python library.


  • New: Add note to test arq.

    arq is a similar library that can be better.

Life Management


Accounting Automation

  • New: Explain my accounting automation workflow.

Operative Systems



  • New: Introduce the cli double entry accounting program.
  • New: Add links on how to use as a library.
  • Correction: Correct the git repository link.



  • New: Introduce the mobile double entry accounting application.
  • Correction: Correct the description of the transaction to be beancount compatible.