From: John Kitchin <jkitchin@andrew.cmu.edu>
To: Karl Voit <news1142@Karl-Voit.at>
Cc: emacs-orgmode@gnu.org
Subject: Re: Mixing Python2 and Python3 blocks in one file
Date: Tue, 17 May 2016 11:37:46 -0400 [thread overview]
Message-ID: <m2h9dw8zlh.fsf@Johns-MacBook-Air.local> (raw)
In-Reply-To: <2016-05-17T16-45-38@devnull.Karl-Voit.at>
You can hack this to work:
#+BEGIN_SRC emacs-lisp
(defun org-babel-execute:python2 (body params)
(let ((org-babel-python-command "/Users/jkitchin/Library/Enthought/Canopy_64bit/User/bin/python2"))
(org-babel-execute:python body params)))
#+END_SRC
#+BEGIN_SRC python2
print 'Hello'
#+END_SRC
#+RESULTS:
: Hello
One issue though is no font-lock in the source block. I think it uses
the language to set the mode.
Karl Voit writes:
> Hi William
>
> * William Henney <whenney@gmail.com> wrote:
>>
>> On Sun, May 8, 2016 at 3:31 AM, Karl Voit <devnull@karl-voit.at> wrote:
>>
>> Python2 and Python3 are two different languages. Unfortunately,
>>> Org-mode only uses ~#+BEGIN_SRC python~ for both and uses
>>> python-shell-interpreter to choose/switch the compiler.
>>>
>>> Shouldn't Org-mode introduce ~#+BEGIN_SRC python2~ and ~#+BEGIN_SRC
>>> python3~ to solve this issue in a clean way?
>>>
>>> ~#+BEGIN_SRC python~ can still default to python2.
>>>
>> You can use the :python header argument to the source block, which allows
>> you to specify the path to the python interpreter:
>>
>> #+BEGIN_SRC python :python /Users/will/anaconda/envs/py27/bin/python
>
> Cool, I did not find this parameter yet.
>
> Is this undocumented? http://orgmode.org/org.html does not contain
> the string ":python:" and
> http://orgmode.org/org.html#Language_002dspecific-header-arguments
> also does not mention this parameter.
>
>> Also see original discussion at
>> https://lists.gnu.org/archive/html/emacs-orgmode/2014-04/msg01042.html
>
> Most interesting to me, thank you.
>
> With the parameter above as a workaround, I can accomplish the
> things I want to do for now. However, I still do think that Python2
> and Python3 as different languages demand different block
> identifiers.
>
> #+BEGIN_SRC python -> defaults to the default python interpreter
> #+BEGIN_SRC python2 -> uses Python2
> #+BEGIN_SRC python3 -> uses Python3
>
> Don't you think?
--
Professor John Kitchin
Doherty Hall A207F
Department of Chemical Engineering
Carnegie Mellon University
Pittsburgh, PA 15213
412-268-7803
@johnkitchin
http://kitchingroup.cheme.cmu.edu
next prev parent reply other threads:[~2016-05-17 15:37 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-08 8:31 Mixing Python2 and Python3 blocks in one file Karl Voit
2016-05-08 15:13 ` Karl Voit
2016-05-17 14:24 ` William Henney
2016-05-17 14:54 ` Karl Voit
2016-05-17 15:37 ` John Kitchin [this message]
2016-05-18 1:19 ` William Henney
2016-05-18 3:42 ` Thomas S. Dye
2016-05-18 7:11 ` Karl Voit
2016-05-18 7:10 ` Division of Org documentation: Org manual and Worg (was: Mixing Python2 and Python3 blocks in one file) Karl Voit
2016-05-18 8:10 ` Division of Org documentation: Org manual and Worg Daniele Pizzolli
2016-05-18 9:03 ` Rasmus
2016-05-18 10:08 ` Daniele Pizzolli
2016-05-18 10:18 ` Rasmus
2016-05-20 17:15 ` Daniele Pizzolli
2016-05-20 18:46 ` Rasmus
2016-05-18 10:18 ` Daniele Pizzolli
2016-05-18 13:45 ` Mixing Python2 and Python3 blocks in one file Ken Mankoff
2016-05-19 3:37 ` William Henney
2016-05-19 13:18 ` Ken Mankoff
2016-05-19 19:21 ` William Henney
2016-05-19 19:32 ` Ken Mankoff
2016-05-19 20:01 ` William Henney
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