emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
From: Dror Atariah <drorata@gmail.com>
To: Nick Dokos <ndokos@gmail.com>
Cc: "emacs-orgmode@gnu.org" <emacs-orgmode@gnu.org>
Subject: Re: [Orgmode] Unable to capture the file name generated using matplotlib
Date: Sat, 23 May 2015 20:49:52 +0200	[thread overview]
Message-ID: <CANfRcg0PRW9dop5V+3f7b4fXGd97VsmPQPWOeDWa84OMkOeBGw@mail.gmail.com> (raw)
In-Reply-To: <CANfRcg0CguKRXkE+4LC=stRo9ET+KRCny=L==wA+QjiMNoMBGw@mail.gmail.com>

[-- Attachment #1: Type: text/plain, Size: 4151 bytes --]

I am still helpless here. Any idea how to debug the problem? I would be
happy to provide any kind of help, but I just cannot do it myself.

Further findings:
1) I don't think that matplotlib changes Python's '_', since the tmp file
that contains the content of '_' is correct.
2) Somehow, emacs/orgmode fails to extract the filename.
3) It doesn't work also when using emacs 24.5 and orgmode 8.2.10.


Following is an org file that tries to summarize the issue:

#+TITLE: Integrate matplotlib figures in an org mode buffer
* Goal
The ultimate goal is to use org-babel as a replacement of IPython. The
first motivation is to enable an easier version controling of the
document. The first challenge I faced is integration of plots returned
by ~matplotlib~ in the org buffer.
* Capturing filename

I would like to use (babel) orgmode as an interactive python
notebook. Therefore, in order to allow the various code blocks to
"know" each other, it is important to use the ~:session~
option. However, once ~:session~ is used, together with ~matplotlib~
the desired behavior is no longer in place.

* Clean testing, no Matplotlib
For the sake of testing, the following merely suppose to return the filename

#+BEGIN_SRC python :session no_matplotlib :results file :exports both
x = 'hello '
y = 'world'
z = x + y
'foo.bar'
#+END_SRC

#+RESULTS:
[[file:foo.bar]]

*Passed* Indeed, the ~RESULTS~ block contains a link to the filename
indicated by the last string.

* Importing Matplotlib

The following minimal example should generate a simple figure,
~myfig.png~, and orgmode should capture it and interpret it as a
filename to be used by the following ~RESULTS~ block.

#+BEGIN_SRC python :session with_matplotlib :results file :exports both
import matplotlib
matplotlib.use('Agg')
import matplotlib.pyplot as plt
fig=plt.figure(figsize=(3,2))
plt.plot([1,3,2])
plt.savefig('myfig.png')
'myfig.png'
#+END_SRC

#+RESULTS:
[[file:]]

*Failed!* This time, it doesn't work anymore. The file ~myfig.png~ is
 properly generated, but the last string is not captured by
 ~matplotlib~. Following is the content of the corresponding
 interactive python session:

#+BEGIN_SRC
Process with_matplotlib finished
Python 3.4.3 (default, Mar 10 2015, 14:53:35)
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.56)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> >>> >>> ,
'''/var/folders/kz/1c2cxn1x60n_t5p2j1p02b180000gn/T/py32771xVI''', 'exec'));
import matplotlib
>>> import matplotlib
matplotlib.use('Agg')
matplotlib.use('Agg')
import matplotlib.pyplot as plt
import matplotlib.pyplot as plt
fig=plt.figure(figsize=(3,2))
fig=plt.figure(figsize=(3,2))
plt.plot([1,3,2])
plt.plot([1,3,2])
plt.savefig('myfig.png')
plt.savefig('myfig.png')
'myfig.png'
'myfig.png'


open('/var/folders/kz/1c2cxn1x60n_t5p2j1p02b180000gn/T/babel-32771x4j/python-32771-fO',
'w').write(str(_))
open('/var/folders/kz/1c2cxn1x60n_t5p2j1p02b180000gn/T/babel-32771x4j/python-32771-fO',
'w').write(str(_))




'org_babel_python_eoe'
'org_babel_python_eoe'
>>> [<matplotlib.lines.Line2D object at 0x108e01828>]
>>> 'myfig.png'
>>> >>> 9
>>> >>> >>> 'org_babel_python_eoe'
>>>
#+END_SRC

* Some background

** Python Version
#+BEGIN_SRC python :session background :results raw
import sys
sys.version
#+END_SRC

#+RESULTS:
3.4.3 (default, Mar 10 2015, 14:53:35)
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.56)]

** Matplotlib version
#+BEGIN_SRC python :session background :results raw
import matplotlib
matplotlib.__version__
#+END_SRC

#+RESULTS:
1.4.3

** System
I am running Emacs version ~GNU Emacs 24.5.1 (x86_64-apple-darwin14.1.0, NS
apple-appkit-1344.72) of 2015-04-19 on tenten-slave.macports.org~

The orgmode version is: ~Org-mode version 8.2.10
(8.2.10-40-gc763fa-elpaplus @
/Users/drorata/.emacs.d/elpa/org-plus-contrib-20150518/)~

** Stackoverflow reference
I also posted a question in the SE network:
[[
http://emacs.stackexchange.com/questions/11075/org-mode-python-session-does-not-return-a-file-name
]]

* Question
So, my question is how to tackle/debug this issue? Can someone give me
a hand here? That would be really great! Thanks!

[-- Attachment #2: Type: text/html, Size: 6266 bytes --]

  reply	other threads:[~2015-05-23 18:49 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-02  7:48 [Orgmode] Unable to capture the file name generated using matplotlib Dror Atariah
2015-05-02 17:09 ` Nick Dokos
2015-05-02 17:11 ` Nick Dokos
2015-05-05 20:20   ` Dror Atariah
2015-05-23 18:49     ` Dror Atariah [this message]
2015-05-25 17:25       ` Dror Atariah
2015-05-25 17:29         ` Ken Mankoff
2015-05-25 18:22           ` Dror Atariah
2015-05-25 18:30             ` John Kitchin
2015-05-26 13:11               ` Dror Atariah
2015-05-26 13:15                 ` Ken Mankoff
2015-05-26 13:19                   ` Dror Atariah
2015-05-26 13:26               ` Dror Atariah
2015-05-26 14:02                 ` Ken Mankoff
2015-05-26 14:37                   ` Dror Atariah
2015-05-26 18:39                   ` Dror Atariah
2015-06-02  5:49                     ` Dror Atariah
2015-06-02 12:21                       ` Ken Mankoff
2015-06-02 18:01                         ` Dror Atariah
2015-05-26  1:49             ` Ken Mankoff
2015-05-26 13:18               ` Dror Atariah
2015-05-26 14:05                 ` Ken Mankoff

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.orgmode.org/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CANfRcg0PRW9dop5V+3f7b4fXGd97VsmPQPWOeDWa84OMkOeBGw@mail.gmail.com \
    --to=drorata@gmail.com \
    --cc=emacs-orgmode@gnu.org \
    --cc=ndokos@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).