In the following example, we loop through a list of numbers, and use the variable digit to hold each number in turn: Strings in Python are considered ... in a for loop is range.

Loops are a commonly used structure in programming that allows you to repeat a block of code a set number of times, or until you meet a particular condition. This is useful for many reasons.

If you’ve ever written any Python at all, the chances are you’ve used iterators without even realising it. Writing your own and using them in your programs can provide significant performance ...