Intspan's string representation was inspired by network news / UUCP, back in the first days of Usenet / Internet before the real Internet. So it was really only

Intspan's string representation was inspired by network news / UUCP, back in the first days of Usenet / Internet before the real Internet. So it was really only designed for whole numbers, not negatives. The syntax for negatives IS very clunky, mostly because they are rarely exercised/used in most of the use cases. I like that "generalized range" operator from R. And it's a nice closed interval, not the half-open annoyance of Python's range() function.