Great, thanks. Both suggestions worked. Cheers, Scott
----- Original Message ---- From: Dan Davison <davi...@stats.ox.ac.uk> To: Thomas S. Dye <t...@tsdye.com> Cc: Scott May <bscott...@yahoo.com>; emacs-orgmode@gnu.org Sent: Thu, February 4, 2010 11:16:43 AM Subject: Re: [Orgmode] org-babel: Why isn't =:results value= working with (my) python? "Thomas S. Dye" <t...@tsdye.com> writes: > On Feb 4, 2010, at 5:06 AM, Scott May wrote: > > > Using org-babel, the following example produces no output for me when I > execute using C-c C-c: > > #+begin_src python :results value > 2 + 2 > #+end_src > > #+results: > : None > > In my messages buffer I see the following: > > : (Shell command succeeded with no output) > > Now the equivalent emacs-lisp example does work: > > #+begin_src emacs-lisp :results value > (+ 2 2) > #+end_src > > #+results: > : 4 > > Furthermore, > > #+begin_src python :results output > print(2 + 2) > #+end_src > > #+results: > : 4 > > works as expected. > > Am I missing something obvious? Is the problem with my python setup, or > perhaps org-babel-python? > > I have tested this on both my Windows and Ubuntu setups. I am using org > version 6.34trans. > > Cheers, > Scott > > > > Hi Scott, > > You need :session. Or, if you are going to stick with the default non-session evaluation, you need to include a return statement: #+begin_src python :results value return 2 + 2 #+end_src #+results: : 4 This is explained in full at http://orgmode.org/worg/org-contrib/babel/reference.php#header-argument-results scroll down to the 2-by-2 table and the explanation below it. Dan > > #+begin_src python :session :results value > 2 + 2 > #+end_src > > #+results: > : 4 > > hth, > Tom > > > Thomas S. Dye, Ph.D. > > T. S. Dye & Colleagues, Archaeologists, Inc. > > Phone: (808) 529-0866 Fax: (808) 529-0884 > > http://www.tsdye.com > > > > _______________________________________________ > Emacs-orgmode mailing list > Please use `Reply All' to send replies to the list. > Emacs-orgmode@gnu.org > http://lists.gnu.org/mailman/listinfo/emacs-orgmode _______________________________________________ Emacs-orgmode mailing list Please use `Reply All' to send replies to the list. Emacs-orgmode@gnu.org http://lists.gnu.org/mailman/listinfo/emacs-orgmode
