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 ...

A complete Python for loops teaching pack designed to help students build confidence with repetition, range(), loop variables, running totals, lists, nested loops and turtle graphics. The pack ...

Certain principles hold for the use of iterators: In general, you should be able to have multiple traversals in progress at the same time; that is, an iterator should allow for the concept of nested ...

This lesson teaches the two programming constructs pupils use most. It starts from sequence, selection and iteration as the complete set, then covers if, elif and else with correct colons, indentation ...