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 complaints about ...

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. For ...

Python, for all its power and popularity, has long lacked a form of flow control found in other languages—a way to take a value and match it elegantly against one of a number of possible conditions.