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From: Eric Schulte <schulte.eric@gmail.com>
To: Roland DONAT <roland.donat@gmail.com>
Cc: emacs-orgmode@gnu.org
Subject: Re: org-babel, python, encoding and table
Date: Wed, 29 May 2013 09:00:18 -0400	[thread overview]
Message-ID: <87ehcq0wm5.fsf@gmail.com> (raw)
In-Reply-To: <loom.20130529T141634-491@post.gmane.org> (Roland DONAT's message of "Wed, 29 May 2013 12:18:33 +0000 (UTC)")

>
> To remind and illustrate the problem, here is an example :
> #+name: pytab-test
> #+begin_src python :results value :session :preamble # -*- coding: utf-8 -*- :return a
> a = ( ( "é", "a" ), ( "a", "à" ) )
> a
> #+end_src
>
> #+TBLNAME: pytab-test
> | \303\251 | a        |
> | a        | \303\240 |
>
>
> I have then two problems :
> 1. The characters are not well displayed in the buffer
> 2. If I try to save the buffer, emacs doesn't recognize the encoding and 
> tells me that "utf-8-unix cannot encode these: \303 \251 [...]
>
> So I decided to inspect what happened during the Python session...
> Basically, Org-babel just write the str conversion of my tuple ( ( "é", "a" 
> ), ( "a", "à" ) ) (that appears (('\xc3\xa9',
> 'a'), ('a', '\xc3\xa0')) in the python interpreter) in a temporary file.
>
> Then looking in this temporary file, I see that the strange characters
> are written directly \xc3, \xa9, etc.
>
> Consequently, my guess is that org-babel has maybe some difficulties
> to deal with these characters while reading the temporary file before
> displaying the results in the buffer.
>
> Unfortunately, this is just a guess and even less a solution... But am I on 
> relevant lead???
>

This does seem to be in the right direction.  This is similar to my
diagnosis of the non-session case [1].  If the python process prints
weird hex character values (e.g., '\xc3\xa0') instead of utf8 characters
(e.g., "à"), then Babel will insert the hex values into the buffer.

As I recall switching to python3 solved this problem?

For the session case, it may be possible to fix this by changing the
python code in the `org-babel-python-evaluate-session' function around
line 300 in ob-python.el.

Cheers,

>
> Thanks in advance for any help...
>
> Roland.
>
>
>
>


Footnotes: 
[1]  http://article.gmane.org/gmane.emacs.orgmode/71866

-- 
Eric Schulte
http://cs.unm.edu/~eschulte

  reply	other threads:[~2013-05-29 13:01 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-07 12:55 org-babel, python, encoding and table Roland Donat
2013-05-07 16:41 ` Eric Schulte
2013-05-07 17:34   ` Andreas Röhler
2013-05-07 18:18     ` Eric Schulte
2013-05-07 18:45       ` Andreas Röhler
2013-05-07 19:20         ` Nick Dokos
2013-05-07 19:40           ` Andreas Röhler
2013-05-07 20:05             ` Nick Dokos
2013-05-08  6:21               ` Andreas Röhler
2013-05-07 19:44           ` Roland Donat
2013-05-07 19:52             ` Andreas Röhler
2013-05-08  8:36   ` Andreas Röhler
2013-05-29 12:18     ` Roland DONAT
2013-05-29 13:00       ` Eric Schulte [this message]
2013-05-29 23:54         ` Christian Wittern

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