This is doable with a hook and advice I think. The hook will hide the results if you use :results hide in the header. I had to use the advice to remove the results before hand, so that you toggle the visibility off. This is pretty lightly tested. you could eliminate (defun hide-results (&optional &rest args) (let ((results (cdr (assoc :results (third (org-babel-get-src-block-info 'light)))))) (when (string-match "hide" results) (org-babel-hide-result-toggle t)))) (add-hook 'org-babel-after-execute-hook 'hide-results) (advice-add 'org-babel-execute-src-block :before (lambda (&rest args) (org-babel-remove-result))) I guess there are other ways that might work too. #+BEGIN_SRC jupyter-python :results hide print(5) #+END_SRC #+RESULTS: : 5 John ----------------------------------- Professor John Kitchin (he/him/his) Doherty Hall A207F Department of Chemical Engineering Carnegie Mellon University Pittsburgh, PA 15213 412-268-7803 @johnkitchin http://kitchingroup.cheme.cmu.edu On Mon, Jun 7, 2021 at 10:03 AM Nick Savage wrote: > My initial thoughts are that this is very possible. This might be an > area where we could add a new defcustom on always hiding the results to > allow the user to choose it. Without looking at the code, I think it > would be pretty straight forward to make an excursion to the results > line, toggle showing it, then going back to where the point was. > > I can take a crack at a patch in the next day or so if no one else wants > to or gets there first. > > On 6/7/21 8:51 AM, Roger Mason wrote: > > Hello, > > > > I'd like to be able to hide results, for example when I expect the > > them to span many lines. I know I can hit =tab= on the #+RESULTS: line, > > but I'd like to be able to set this automatically. > > > > My most recent effort: > > > > #+name: hideresults > > #+begin_src emacs-lisp :results none :exports none > > (add-to-invisibility-spec '(org-babel-hide-result . t)) > > #+end_src > > > > run like this > > > > #+header: :engine postgresql :dbhost "localhost" :dbuser "rmason" > :database "test" :colnames yes > > #+header: :post hideresults > > #+name: pgquery > > #+begin_src sql > > select timestamp,nempty0 from settings where timestamp like '%20210528%' > > #+end_src > > > > produces > > > > #+RESULTS: pgquery > > : nil > > > > I'm sure there is a way to do this, but I need some pointers as to how. > > > > Thanks for any help. > > > > Roger > > > > Org mode version 9.2.3 (release_9.2.3-390-gfb5091 @ > > /home/rmason/.emacs.d/org-git/lisp/) > > > > GNU Emacs 27.2 (build 1, amd64-portbld-freebsd11.4, X toolkit, cairo > version 1.16.0, Xaw3d scroll bars) > > > >