Some say a set of regular expressions comprises a domain-specific language, or DSL; essentially, a mini-programming language. A full-blown programming language like Java or Python can do many things, ...

Python regex character classes make it easier to identify specific patterns inside strings without writing unnecessarily long regular expressions. This lesson demonstrates how \d matches digits while ...

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.