FIX: sympydiff_utils: Replace some constants to ensure compilation #91
This fixes an issue with some unpublished custom Models reported by a user to have issues when using
@bocklund This is a quick fix designed to be pushed into a new minor release. (A better fix would fix the code generation side rather than search-and-replace the SymPy object.) There is a workshop next week where the user's work will prominently feature pycalphad, and we want to make sure the calculations run.