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 ...

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 “sequences” — they can be iterated over, and the ...

The next version of Python is over a year away, but you can try out one of its hottest features right now (video). Python might be the best, but it’s not your only choice for AI and machine learning.