cpbotha-elpy-init.el

;; cpbotha's not so nice elpy init

(use-package elpy
  :commands (elpy-enable) ;; this will ensure lazy loading
  :config
  (progn
    (message "LAZY loading elpy")
    (elpy-enable)
    ;; elpy is mightily confused by ipython 5.2 so we disable it
    ;; (elpy-use-ipython)
    (define-key elpy-mode-map (kbd "C-M-n") 'elpy-nav-forward-block)
    (define-key elpy-mode-map (kbd "C-M-p") 'elpy-nav-backward-block)
    ))

;; call elpy-enable only the first time a python file is opened
;; this will in turn trigger the loading of elpy via use-package
(setq elpy-loaded nil)
(add-hook 'python-mode-hook
          (lambda ()
            (setq prettify-symbols-alist '(("lambda" . 955)))
            (company-mode 1)
            (when (not elpy-loaded)
              (setq elpy-loaded t)
              (elpy-enable)
	      ;; here we're already inside the first python-mode-hook invocation
	      ;; we've just installed elpy-enable's own python-mode-hook, but
	      ;; that will only get triggered the NEXT time, so here we manually
	      ;; activate elpy-mode
	      ;; I don't know if lazy loading elpy is worth all this extra code.
	      (elpy-mode))))

Thanks so much for this! Just wondering, what did you set your company-mode idle delay timer to?

I've been experiencing severe lag when ob-ipython tries to obtain completion candidates, and it seems that company-mode isn't async yet. Really appreciate all the help thus far.