Ocaml utop library paths, Core module

Question

I am attempting to use the Core module in utop, as originated by Jane Street and installed using opam.

Here\'s the problem

Answer 1

Assuming that you have core properly installed through opam:

# require "core";;
open Core.Std;;

Should work.

Answer 2

I had the same problem, the directions here got it working for me.

https://github.com/realworldocaml/book/wiki/Installation-Instructions#setting-up-and-using-utop

add the following lines to your ~/.ocamlinit file

#use "topfind";;
#thread;;
#camlp4o;;
#require "core.top";;
#require "core.syntax";;