To get started with the code you need to install Anaconda Python as well as the pymssql package. The notebooks themselves should work on any OS.
If you finished the codeacademy Python course, your next step is to install Anaconda Python, try to launch jupyter notebook, and get acquainted with that.
Once you see how it works, you can either try copy-pasting the code examples into the notebook and executing them, or cloning the steem-stats repository where I am posting these notebooks, and trying to open them in your Jupyter.
Feel free to ask for more specific advice.
RE: DIY Steemit Statistics with Python: Part 1 - Counting Users