Why do I need it? Life is too short to tidy up code by hand. Black is an opinionated python formatter. By using it, you agree to cede control over minutiae of hand-formatting.
Why do I need it? numpy is “The fundamental package for scientific computing with Python”. In particular it gives us fast and efficient array types which can be used with C/C++ types as well.
Why do I need it? These two co-related modules will make your command line tools better. “Rich is a Python library for rich text and beautiful formatting in the terminal”, “Textual is a TUI (Text User Interface) framework for Python inspired by modern web development.