From mboxrd@z Thu Jan  1 00:00:00 1970
From: =?UTF-8?B?QW5kcmVhcyBSw7ZobGVy?= <andreas.roehler@easy-emacs.de>
Subject: Re: BUG org-babel-execute-src-block: No org-babel-execute function
 for python!
Date: Tue, 26 Feb 2013 20:34:31 +0100
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To: Ista Zahn <istazahn@gmail.com>
Cc: Bastien <bzg@altern.org>, Nick Dokos <nicholas.dokos@hp.com>, emacs-orgmode <emacs-orgmode@gnu.org>

Am 26.02.2013 17:00, schrieb Ista Zahn:
> On Tue, Feb 26, 2013 at 10:42 AM, Andreas Röhler
> <andreas.roehler@easy-emacs.de> wrote:
>> Am 26.02.2013 14:49, schrieb Bastien:
>>
>>> Hi Andreas,
>>>
>>> Andreas Röhler <andreas.roehler@easy-emacs.de> writes:
>>>
>>>> org-babel-execute-src-block: No org-babel-execute function for python!
>>>>
>>>> When evaluating the following block C-c C-c starting from emacs -Q
>>>
>>>
>>> You need
>>>
>>> (org-babel-do-load-languages
>>>    'org-babel-load-languages
>>>    '((python . t)))
>>>
>>> See (info "(Org)Languages")
>>>
>>> HTH,
>>>
>>
>> Bugs exists after loading that.
>
> What is the nature of the bugs?
>
>> Please tell if you need more info.
>
> what is the result of 'M-x org-version'?
>
> Also, try this simple test and report the results:
> 1. start emaces with emacs -q
> 2. visit a new file with a .org extension, e.g., tmp.org
> 3. paste this in:
> 8<--------------------cut here<--------------------8<
> Place cursor in the code block below and press C-c C-c
>
> #+begin_src emacs-lisp :exports none
>    (org-babel-do-load-languages
>     'org-babel-load-languages
>     '((python . t)))
> #+end_src
>
> #+BEGIN_SRC python :results output
> a = 5
> b = 16
> print(a + b)
> #+END_SRC
> 8<--------------------cut here<--------------------8<
> 4. place the cursor inside the first code block and press C-c C-c
> 5. place the cursor inside the second code block and press C-c C-c
> 6. let us know what happens
>
> Best,
> Ista
>
>
>>
>> Andreas
>>
>

Hi Ista,

Org-mode version is 7.9.3e (7.9.3e-3-gb07a9b

i.e. loading current trunk.

When following your prescription, bug does not occur.

My from way to load languages was

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

If I load this first, then your print-example shows error like indicated in subject line.

Something wrong with this code?

Thanks all,

Andreas