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, 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.

We left the saga of PEP 622 ("Structural Pattern Matching") at the end of June, but the discussion of a Python "match" statement—superficially similar to a C switch but with extra data-matching ...