A quick peek at the itertools module

A chapter about iterables, iterators, conditional logic, and looping would not be complete without a few words about the itertools module. According to the Python official documentation (https://docs.python.org/3.12/library/itertools.html), the itertools module:

…implements a number of iterator building blocks inspired by constructs from APL, Haskell, and SML. Each has been recast in a form suitable for Python.The module standardizes a core set of fast, memory efficient tools that are useful by themselves or in combination. Together, they form an "iterator algebra" making it possible to construct specialized tools succinctly and efficiently in pure Python.

We do not have room here to show you everything this module has to offer, so we encourage you to explore it further for yourself. We can promise that you will enjoy it, though. It provides you with three broad categories of iterators. As an introduction, we shall give you a small...