Sometimes you want to leave a for loop early, or skip over an item in the loop. To do that, Python provides you with two keywords: break and continue. for n in range(20): ...

In the early days of C, you’d occasionally see someone — probably a former Pascal programmer — write something like this: #define BEGIN { #define END } This would usually initiate… ...

It is better to write pseudocode (a simple outline of what you plan to do) first and get a clear idea of what you need and how to accomplish that task. In general, for loops are used when you know ...