(defun python-shell-send-region-or-line nil
  "Sends from python-mode buffer to a python shell, intelligently."
  (interactive)
  (cond ((region-active-p)
     (setq deactivate-mark t)
     (python-shell-send-region (region-beginning) (region-end))
     (python-nav-forward-statement)
 ) (t (elpy-shell-send-current-statement))))