A lightweight Lisp on top of Python. Personally I'd prefer Fennel, which is on Lua and thus a whole lot faster, especially in regard to the startup time—but as

A lightweight Lisp on top of Python. Personally I'd prefer Fennel, which is on Lua and thus a whole lot faster, especially in regard to the startup time—but as I noted in a thread on Fennel, Lua's omission of a proper ‘null’ makes it awkward to handle exchange and transformations of data from third parties. And, since I'm likely to fiddle with the queries for some time, startup delay is less important here.