@Magica are you keeping your python scripts in the default folder?
Here is original post about using Atom with Rhino for Mac … The rhino-python package for the Atom text editor and Rhino for Mac
@Alain shouldn’t your first post about using Atom with Rhino for Mac be pinned somewhere here on discourse? This would help link to the actual document page.
@Magica do you see something like this when in Atom, when you right-click the python file?
If you have a newer Atom, you then have to right-click in the actual text area of Atom.
Does this help?