There's a whole menagerie of vmap-related functions exported, corresponding to mutating/non-mutating, temporal/non-temporal stores, and singlethreaded/multithreaded. Eight versions of the same function are maintainable, but if some other boolean switch is added, that's sixteen, which could get unwieldy. Wrapper types might allow for a more Julian interface - something like

map!(Threaded(+)

NB: Good first issue label (cannot be added because not in contributor list)

Exercise Reading error Messages - Lesson "Error and Exceptions"
(http://swcarpentry.github.io/python-novice-inflammation/09-errors/index.html)

• As dictionaries are not introduced previously in lesson (maybe a consequence of reducing the lesson) I suggest the following:

1. Moving this exercise at the end of th