auto complete for ein

if
(setq ein:use-auto-complete t)

gives the error
symbol's function definition is void: ac-define-source

then install auto-complete in emacs
(it comes automatically if you install ac-anaconda)


M-x elpy- config tells what is not installed
install it with pip

source:
https://realpython.com/blog/python/emacs-the-best-python-editor/