>>> "John" == John Kitchin <jkitchin@andrew.cmu.edu> writes:

   > Maybe you need :exports and not :export.
   > John

I tried also lisp

#+begin_src elisp :tangle test.el  :exports code :padline no 
(require 'ob-ipython)

(setq org-confirm-babel-evaluate t)   ;don't prompt me to confirm everytime I want to evaluate a block

;;; display/update images in the buffer after I evaluate
(add-hook 'org-babel-after-execute-hook 'org-display-inline-images 'append)
#+end_src

The basic idea is.
That we do.
We also will

#+begin_src elisp  :tangle test.el :exports code  :padline no 
(defun org-babel-execute:matlab-org (body params)
  "Execute a block of matlab code with Babel."
  (org-babel-execute:octave body params 'matlab))
#+end_src

But no, when exporting to latex the source code is removed.