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 ...

Padding the output of the inner loop flips it horizontally. Squares and rectangles are probably the best place to start when learning how to print Python star patterns. For squares, the number of ...

Python makes a pretty nice interactive calculator. You can do the other way around, too, with the builtin function bin(x). (And there are also hex() and oct() builtins, if you also need to go back ...

rather than just an index number. Python dictionaries consists of one or more keys—an object like a string or an integer. Each key is associated with a value, which can be any Python object.