Aloha Johanna May, This works:
#+name: fs #+BEGIN_SRC emacs-lisp 10 #+END_SRC #+RESULTS: fs : 10 #+header: :var fontsize=fs() :results output #+begin_src python print(fontsize) #+end_src #+RESULTS: : 10 Note "fs()" instead of "fs". All the best, Tom -- Thomas S. Dye http://tsdye.online/tsdye