Libraries are collections of shared code. They're common in Python, where they're also called "modules," but they're also ...

Learn how to do time series regression using a neural network, with 'rolling window' data, coded from scratch, using Python.

Python is easy to learn and use Python encompasses a relatively modest number of features, so it requires a fairly minimal investment of time and effort to produce your first programs.

Python type hints are used ahead of time, by the type-checking system; for instance, in your editor or IDE. In other words, Python’s type hints are for the developer, not the runtime.