Working With Python's Iterators, Iterables, and Iteration 

This is a preview of the video course, "Efficient Iterations With Python Iterators and Iterables." Python’s iterators and iterables are two different but related tools that come in handy when you need to iterate over a data stream or container. Iterators power and control the iteration process, while iterables typically hold data that you want to iterate over one value at a time.
This is a portion of the complete course, which you can find here:
realpython.com...
The rest of the course covers:
Use generator functions and the yield statement to create generator iterators
Build your own iterables using different techniques, such as the iterable protocol
Use the asyncio module and the await and async keywords to create asynchronous iterators