In that example, we define an anonymous function that "multiplies" its argument by seven, then call it with an argument of six. But, of course, Python has overloaded the multiplication operation, so: ...

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.

Python is best thought of as a dynamic but strongly typed language. Types aren’t associated with the names of things, but with the things themselves. This makes Python flexible and convenient for ...

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Recall that R is a statistical programming language—a language designed to do things like t-tests, regression, and so on. The core of R was developed during the 1970s and since then, many libraries ...

There is a fundamental tension to being a language designer/implementer: knowing when to stop. There's a point where you need to start working on a new language, rather than trying to shoehorn your ...