Functions that rely on something outside the function itself (e.g., a network call, or a read from disk) are harder to memoize, though it can still be done.

Or, you can use the os.walk function, which does all of this and more. Although os.walk looks and acts like a function, it's actually a "generator function"—a function that, when executed, returns a ...

Chapter 6: Functions and Functional Programming Substantial programs are broken up into functions for better modularity and ease of maintenance. Python makes it easy to define functions but also ...

It’s based on the Raspberry Pi, features an intuitive Python GUI, and can generate and measure simultaneously. But wait!