todz09/CS50-Python-Practice ? reverse-engineered prompt

Build me a simple Python practice project based on the CS50 lectures.

I want a small collection of example scripts that help me practice functions, variables, and using built in libraries in Python. Keep it beginner friendly, with a few clear examples I can run and learn from, and add some of your own practice exercises too so it feels like real study material and not just notes.

Please also include a few unit tests for the examples, so I can see how to test the functions I write. Make the code easy to read, with comments where helpful, and organize it in a way that makes sense for someone learning. If you need to check current Python docs or best practices for anything, look them up online first.