Re: Getting source code to work

[Mark Stoehr <stoehr@cs.uchicago.edu>]

Thanks Tom,

I do have

(org-babel-do-load-languages
 'org-babel-load-languages '((python . t)
			     (R . t)))

in my ~/.emacs.d/init.el

and my version (from M-x org-version) is
Org-mode version 7.8.11

Cheers,
Mark

On Wed, Aug 1, 2012 at 2:07 PM, Thomas S. Dye <tsd@tsdye.com> wrote:
> Aloha Mark,
>
> Mark Stoehr <stoehr@cs.uchicago.edu> writes:
>
>> Hi,  I'm trying to include python source code in my document and I'm
>> finding that org-babel-execute-buffer ( as well as C-c C-c at the end
>> of a code block) does not successfully run my code, instead I get an
>> error "Invalid function: org-save-outline-visibility".  I saw messages
>> earlier
>>
>> http://thread.gmane.org/gmane.emacs.orgmode/28048/focus=28049
>>
>> regarding an apparently similar problem but my understanding of emacs
>> lisp is insufficient for me to make sense of it.  My program:
>>
>> #+BEGIN_SRC python
>> print "Hello World"
>> return 1+2
>> #+END_SRC
>>
>>
>> I also have trouble getting tangle to work. With the following problem
>>
>>
>> #+BEGIN_SRC python :tangle yes
>> print "Hello World"
>> return 1+2
>> #+END_SRC
>>
>> both C-c C-v t and M-x org-babel-tangle fail saying that 0 blocks have
>> been tangled.  I also tried the examples with the #+BEGIN_SRC and
>> #+END_SRC being in lowercase and that didn't change anything.
>>
>>
>
> Your source code block evaluates fine on my setup:
>
> #+BEGIN_SRC python
> print "Hello World"
> return 1+2
> #+END_SRC
>
> #+RESULTS:
> : 3
>
> The error message you are getting refers to a bug that was apparently
> fixed some time ago.  What version of Org mode are you running?
>
> Also, did you tell Org mode that you will be evaluating Python code?
> You should have something like this in .emacs:
>
>   (org-babel-do-load-languages
>    'org-babel-load-languages
>    '((R . t)
>      (C . t)
>      (ditaa . t)
>      (dot . t)
>      (emacs-lisp . t)
>      (gnuplot . nil)
>      (haskell . nil)
>      (latex . t)
>      (lisp . t)
>      (ocaml . nil)
>      (org . t)
>      (perl . t)
>      (python . t)  # This is the line you'll need
>      (ruby . nil)
>      (screen . nil)
>      (sh . t)
>      (sql . nil)
>      (sqlite . t)))
>
> hth,
> Tom
>
> --
> Thomas S. Dye
> http://www.tsdye.com
>