slides - https://slideshare.net/atmb4u/data-driven-code

simple.py - if you are new to neural networks, this is where you should look at

multiple.py - same code being reused in different data scenarios in a very simple example. Code that learns from the data.

demo.py - similar to simple.py with just code and no documentation.