> The New York times used to maintain it's own programming language whose only application was the NYT website. Trello did too, and there are many companies tha

> The New York times used to maintain it's own programming language whose only application was the NYT website. Trello did too, and there are many companies that did that without hitting the conference circuit about it. C#, Swift and to a lesser degree Hack are still very much alive. But the two former are public by design. There's no advantages anymore to having a custom DSL. > The big cultural marker might be MIT switching their intro course from scheme to python in the late 00s. The target audience of the course also changed quite a bit. Now it's taken by undergrads of all majors while it used to be taught to a mostly CS audience. With that in mind, it makes sense to teach Python, since it's nearly universal and has nice data-analysis libraries that are well documented.