How to use “while” loops in Python The great thing about Python is that a lot of its statements sound like plain English, meaning you can guess what they do before you even learn!

When you want to create a loop in Python, you generally have two choices: the while loop and the for loop. while is simple: it just repeats until a given condition is no longer true. The for loop ...

This can cause the loop to skip over elements. For example, when 1 is removed, 2 moves into 1's old position, but the loop's internal counter has already moved on, potentially skipping 2.