Open the Terminal application and type “say hello.” The computer says, “hello.” Magic! Tip #4 The Number Guessing Game Here’s some code for a number guessing game in Python. To run this ...

In Python generally, we can use isinstance() to make decisions based on whether or not something is a given type. typing.TypeIs lets us do the same thing in Python’s type hinting mechanisms.

Python 3 introduced the idea of "type annotations," and as of Python 3.6, you can annotate variables, not just function parameters and return values. The idea is that you can put a colon (:) and then ...