This post contains a step-by-step example of a refactoring session guided by tests. When dealing with untested or legacy code refactoring is dangerous and tests can help us do it the right way, minimizing the amount of bugs we introduce, and possibly comp... (more…)

The challenge You are given a binary tree: Your task is to return the list with elements from tree sorted by levels, which means the root element goes first, then root children (from left to right) are second and third, and so on. Return empty list if roo... (more…)

In this tutorial, you'll learn what Python wheels are and why you should care as both a developer and end user of Python packages. You'll see how the wheel format has gained momentum over the last decade and how it has made the package installation proces... (more…)

Rich is a Python library for rich text and beautiful formatting in the terminal. - willmcgugan/rich... (more…)

InAppPy - Python In-app purchase validator for Apple AppStore and GooglePlay.