I make Python libraries and tools that I wish existed when I first started learning about programming decades ago. I've added things over time that would have helped me in my professional career and daily work life.
The best features I've created were either born of frustrations when dealing with other codebases or super helpful things I discovered while solving problems for myself.
I use these repositories as a reference for myself, but they were also written with the intention that I could explain them to curious middle and elementary school students.
Check out the Learning Python 3 gist if you are new to Python and checkout the base and dotfiles repos to get yourself a pleasant command-line development environment (vim, tmux, git, and docker).