What can you do with generator expressions? PREMIUM

What can you do with generator expressions? In two words: lazy pre-processing.

We basically take the logic that's in a for loop and move some of it before the for loop. This allows us to chunk up our looping logic, which can sometimes make our code a little bit more readable.

Filtering elements using a for loop

We have a tab delimited file here (expenses.tsv) that represents prices of various items:

...