From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sacha Chua <sacha@sachachua.com>
Subject: Re: [babel] Setting python interpreter version on per-block or
 per-subtree basis
Date: Thu, 24 Apr 2014 21:59:18 -0400
Message-ID: <86k3ae6ufd.fsf@sachachua.com>
References: <CAKchnZOham41L2jzWbynFk3oQyrWcw6vUGduya2c3x3ZHVJQDw@mail.gmail.com>
Mime-Version: 1.0
Content-Type: text/plain
Return-path: <emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org>
Received: from eggs.gnu.org ([2001:4830:134:3::10]:35944)
	by lists.gnu.org with esmtp (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1WdVQQ-0002ai-JN
	for emacs-orgmode@gnu.org; Thu, 24 Apr 2014 21:59:46 -0400
Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1WdVQJ-00036p-29
	for emacs-orgmode@gnu.org; Thu, 24 Apr 2014 21:59:38 -0400
Received: from plane.gmane.org ([80.91.229.3]:39916)
	by eggs.gnu.org with esmtp (Exim 4.71)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1WdVQI-00036d-QP
	for emacs-orgmode@gnu.org; Thu, 24 Apr 2014 21:59:30 -0400
Received: from list by plane.gmane.org with local (Exim 4.69)
	(envelope-from <geo-emacs-orgmode@m.gmane.org>) id 1WdVQH-00037d-Mr
	for emacs-orgmode@gnu.org; Fri, 25 Apr 2014 03:59:29 +0200
Received: from 184.175.19.126 ([184.175.19.126])
	by main.gmane.org with esmtp (Gmexim 0.1 (Debian))
	id 1AlnuQ-0007hv-00
	for <emacs-orgmode@gnu.org>; Fri, 25 Apr 2014 03:59:29 +0200
Received: from sacha by 184.175.19.126 with local (Gmexim 0.1 (Debian))
	id 1AlnuQ-0007hv-00
	for <emacs-orgmode@gnu.org>; Fri, 25 Apr 2014 03:59:29 +0200
List-Id: "General discussions about Org-mode." <emacs-orgmode.gnu.org>
List-Unsubscribe: <https://lists.gnu.org/mailman/options/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=unsubscribe>
List-Archive: <http://lists.gnu.org/archive/html/emacs-orgmode>
List-Post: <mailto:emacs-orgmode@gnu.org>
List-Help: <mailto:emacs-orgmode-request@gnu.org?subject=help>
List-Subscribe: <https://lists.gnu.org/mailman/listinfo/emacs-orgmode>,
	<mailto:emacs-orgmode-request@gnu.org?subject=subscribe>
Errors-To: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
Sender: emacs-orgmode-bounces+geo-emacs-orgmode=m.gmane.org@gnu.org
To: emacs-orgmode@gnu.org

William Henney <whenney@gmail.com> writes:

Hello, Will!

> Is there an easy way to specify the python version to use for a particular
> block or sub-tree?

Is it something you can define an inherited property or a tag for, and
then add some advice around org-babel-execute:python to check that
property and use let to bind org-babel-python-comand?

Maybe something like this, for example:

#+begin_src emacs-lisp
(defadvice org-babel-execute:python (around will activate)
  (if (member "python2" (org-get-tags-at))
    (let ((org-babel-python-command "/path/to/python2"))
      ad-do-it)
    ad-do-it))
#+end_src
	
* Test :python2:
#+begin_src python
return 1 + 3
#+end_src

Sacha