Example implementations of the practice and challenge projects in Impractical Python Projects. Alternative answers to practice projects and supporting files can be found at the official page.
It's a fantastic intermediate level book that has truly impractical (but fun) projects. It's a great way to get tricked into learning new conventions, techniques, and modules. My closed PRs and the comments on my release commits act as a blog of sorts detailing some of the things learned along the way.
My original python-tutorials repository is already very nested, so these will be easier to find and review here; however, the original repository still has relevant information about configuring a Python environment/IDE.
Bonus content includes Google style docstrings (such wow), main functions (so standard), pip requirements files (so helpful), and test files (not punny at all).