Just ran into this issue with a fresh nodebb install. I didn't have python setup correctly.
Made sure python 2.7 (not 3.x) is setup and the python command works. Then npm install again. Fixed it for me.
Like the title explains. I like to delete a user but not the posts / content from user. Is it possible to move posts / content of that user to another user before i delete the user. Or do i have to delete and then move/ map posts / content to another existing user?
I don't think it's possible to move posts between users.