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Re: [O] python :session does return


From: Ken Mankoff
Subject: Re: [O] python :session does return
Date: Wed, 15 Jan 2014 07:22:59 -0500

Hi John,

Yes, you and others in that thread seem to be experiencing the same problem, although there are also different issues discussed there.

I'm a bit surprised... With the popularity of python I would expect more org users to have run into this and it to be fixed, but perhaps it isn't as widely used as I thought. Anyway, it is now usable even if the 'print' statements don't show up.

  -k.



On Tue, Jan 14, 2014 at 6:04 PM, John Hendy <address@hidden> wrote:
On Tue, Jan 14, 2014 at 7:38 AM, Ken Mankoff <address@hidden> wrote:
>
> I've seen various historical issues with :session but it seems I may have a
> different problem. This is the latest org in emacs 24.3. If I do not have
> :session, then everything works just fine.
>

This sounded familiar to me, so I googled around for Org mailing list
discussions I was involved in related to python. Does this shed any
new light?
- https://www.mail-archive.com/address@hidden/msg68542.html

Seems that the discussion ended with the possibility that it was an
emacs change to python.el, and not related to Org, but I'm not sure if
any actions were ever taken regarding that. In any case, the
discussion features a discrepancy between python behavior with
`:session name` and without, so it seemed like a possible candidate to
pass along!



Best regards,
John

> If I C-c C-c in the following code:
>
> #+BEGIN_SRC python :session transect
> import numpy as np
> x = np.arange(12)
> #+END_SRC
>
> Emacs hangs the first time with minibuffer message of "Sent
> python-eldoc-setup-code". If I C-g, I can edit the org buffer again. All
> other invocations of that code and the minibuffer message is "executing
> Python code block...", but still emacs hangs until I C-g.
>
> If I look at the *transect* buffer, I see the following. The code runs just
> fine, but for some reason it does not return.
>
>   -k.
>
>
>
> Enthought Canopy Python 2.7.3 | 64-bit | (default, Dec  2 2013, 16:19:29)
> [GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
> Type "help", "copyright", "credits" or "license" for more information.
> import numpy as np
> Start .pythonrc
> End .pythonrc
>>>>
>>>> import numpy as np
>
> x = np.arange(12)
> x = np.arange(12)
>
>
> open('/var/folders/60/jb7kfrsn2jd90hpcgj4m_wrc0000gn/T/babel-28022EFF/python-28022Yjm',
> 'w').write(str(_))
> open('/var/folders/60/jb7kfrsn2jd90hpcgj4m_wrc0000gn/T/babel-28022EFF/python-28022Yjm',
> 'w').write(str(_))
>
>
>
>
> 'org_babel_python_eoe'
> 'org_babel_python_eoe'
>>>>
>>>> >>> >>> >>> >>> >>> Traceback (most recent call last):
>
>   File "<stdin>", line 1, in <module>
> NameError: name '_' is not defined
>>>>
>>>> >>> >>> 'org_babel_python_eoe'
>>>> import numpy as np
>
> import numpy as np
> x = np.arange(12)
>>>>
>>>> x = np.arange(12)
>
>
>>>>
> open('/var/folders/60/jb7kfrsn2jd90hpcgj4m_wrc0000gn/T/babel-28022EFF/python-28022lts',
> 'w').write(str(_))
>>>>
>>>>
> open('/var/folders/60/jb7kfrsn2jd90hpcgj4m_wrc0000gn/T/babel-28022EFF/python-28022lts',
> 'w').write(str(_))
>
>>>>
>
>>>>
> 'org_babel_python_eoe'
>>>>
>>>> 'org_babel_python_eoe'
>
> 'org_babel_python_eoe'
>>>>
>>>>
>
>
>
>


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