From: "Andreas Röhler" <andreas.roehler@easy-emacs.de>
To: emacs-orgmode@gnu.org
Cc: Gary Oberbrunner <garyo@oberbrunner.com>
Subject: Re: python sessions
Date: Sat, 30 Mar 2013 08:19:37 +0100 [thread overview]
Message-ID: <51569209.3050801@easy-emacs.de> (raw)
In-Reply-To: <51528F56.7090605@easy-emacs.de>
Am 27.03.2013 07:19, schrieb Andreas Röhler:
> Am 26.03.2013 22:41, schrieb Gary Oberbrunner:
>> I did some further testing. With my patch, my real org-mode python file is
>> now actually working. There were a few gotchas I didn't understand about
>> session mode and python and matplotlib:
>>
>> 1. In session mode, you are essentially running an interactive python.
>> (This is made explicit by my patch, which passes -i).
>> 2. In interactive mode, blank lines are special: they indicate the end of
>> an indented block. So you have to write your org-mode python a little
>> differently when using session mode.
>> 3. matplotlib uses an "interactive" backend when started from an
>> interactive python (sensibl
y). So you have to set the backend explicitly
>> when using session mode, or it hangs forever with no indication what's
>> wrong.
>> 4. ob-python does not handle python errors at all in session mode: it
>> ignores them silently. This makes it really hard to debug the python code.
>>
>> I'd like to document #s 1-3; where should that go?
>> I'd like to work on a patch for #4; it seems like the only thing is to
>> search in the session buffer for likely error strings. Is there any better
>> method anyone can think of?
>>
>
> AFAIU the error string is missing, because it's sent the wrong path-to-interpreter,
> i.e. using shell-command.
> Shell returns 0 or 1, not the Python errors.
>
> Also the interactive spec is related. Usually Python shell as started from py-shell or run-python include this already.
> When send from a python-mode, also the empty lines you mentioned and related stuff is treated.
>
> Andreas
>
>
>
That turned out not being the case. I'm quoting:
> This is incorrect. In session mode, there is one long-running python
> interpreter session. Emacs passes it code snippets, and it spits out
> stdout and stderr (all mixed up: output from your program, the lines
> themselves which get echoed, prompts, and error messages if any). There is
> never any "return" value since the python interpreter doesn't exit. The
> only way to handle errors in interactive mode AFAICS is to use approximate
> regexes to look for errors, un-handled exceptions and so on.
>
Cheers
next prev parent reply other threads:[~2013-03-30 7:18 UTC|newest]
Thread overview: 217+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-19 21:40 python sessions Gary Oberbrunner
2013-03-20 0:04 ` John Hendy
2013-03-20 3:07 ` Nick Dokos
2013-03-20 6:44 ` Andreas Röhler
2013-03-20 12:54 ` Ista Zahn
2013-03-20 14:08 ` Nick Dokos
2013-03-20 14:28 ` Gary Oberbrunner
2013-03-20 17:21 ` Andreas Röhler
2013-03-20 7:08 ` Andreas Röhler
2013-03-20 15:38 ` John Hendy
2013-03-20 15:42 ` John Hendy
2013-03-20 16:06 ` Nick Dokos
[not found] ` <CAFChFygsUeBejEY6m2bSU0C5cjLYz0nUADH=s+BYxajfZ2sKKQ@mail.gmail.com>
2013-03-20 16:12 ` Fwd: " Gary Oberbrunner
2013-03-20 17:08 ` Andreas Röhler
2013-03-20 17:25 ` Nick Dokos
2013-03-20 17:54 ` John Hendy
2013-03-20 18:15 ` Nick Dokos
2013-03-20 18:32 ` Ista Zahn
2013-03-20 18:39 ` Nick Dokos
2013-03-20 18:43 ` Andreas Röhler
2013-03-20 19:42 ` Ista Zahn
2013-03-20 19:53 ` Andreas Röhler
2013-03-20 20:12 ` Ista Zahn
2013-03-20 20:25 ` Gary Oberbrunner
2013-03-20 22:06 ` Ista Zahn
2013-03-20 18:42 ` Andreas Röhler
2013-03-20 19:01 ` Andreas Röhler
[not found] ` <CAFChFygPrhuHHyMo2Vk2_OdksWVB=oACA7jnOXN+itUNqh-nqw@mail.gmail.com>
[not found] ` <CA+M2ft9bO7DU61vVeYrhduVvkg1V6PMuiyvsOy5tNWuXcSUEpw@mail.gmail.com>
[not found] ` <CAFChFyhbeXE4HNLKA6Ubii+MtQwD7=4khAypa+--coZrQiJekA@mail.gmail.com>
2013-03-21 1:22 ` Gary Oberbrunner
2013-03-21 1:54 ` John Hendy
2013-03-21 1:56 ` Gary Oberbrunner
2013-03-21 7:42 ` Andreas Röhler
2013-03-21 7:43 ` Bastien
2013-03-21 8:13 ` Andreas Röhler
2013-03-23 22:07 ` Eric Schulte
2013-03-24 1:29 ` John Hendy
2013-03-24 22:59 ` Eric Schulte
2013-03-25 2:38 ` Nick Dokos
2013-03-25 2:59 ` John Hendy
2013-03-25 6:34 ` Andreas Röhler
2013-03-25 15:40 ` Eric Schulte
2013-03-25 15:55 ` John Hendy
2013-03-25 16:07 ` Eric Schulte
2013-03-25 16:41 ` Nick Dokos
2013-03-25 16:01 ` Ista Zahn
2013-03-25 16:23 ` John Hendy
2013-03-25 16:43 ` Eric Schulte
2013-03-25 17:27 ` Andreas Röhler
2013-03-25 17:41 ` John Hendy
2013-03-25 18:16 ` Ista Zahn
2013-03-25 19:30 ` Ivan Andrus
2013-03-24 7:47 ` Andreas Röhler
2013-03-24 14:47 ` John Hendy
2013-03-24 15:30 ` Andreas Röhler
2013-03-24 16:58 ` Nick Dokos
2013-03-24 16:59 ` John Hendy
2013-03-24 18:41 ` Nick Dokos
2013-03-25 20:46 ` Andreas Röhler
2013-03-25 21:37 ` Eric Schulte
2013-03-26 6:29 ` Andreas Röhler
2013-03-26 12:32 ` Eric Schulte
2013-03-26 21:41 ` Gary Oberbrunner
2013-03-26 21:47 ` John Hendy
2013-03-27 6:19 ` Andreas Röhler
2013-03-30 7:19 ` Andreas Röhler [this message]
-- strict thread matches above, loose matches on Subject: below --
2012-10-31 6:12 Bug? R: Org babel block execution *drastically* slower than in ESS session directly John Hendy
2012-10-31 16:41 ` cberry
2012-10-31 17:18 ` John Hendy
2012-10-31 20:12 ` cberry
2012-10-31 20:23 ` John Hendy
2012-10-31 20:56 ` Thomas S. Dye
2012-10-31 23:00 ` Nick Dokos
2012-10-31 22:53 ` Nick Dokos
2012-11-01 14:53 ` John Hendy
2012-11-01 15:38 ` Nick Dokos
2012-11-01 18:17 ` John Hendy
2012-11-01 18:18 ` John Hendy
2012-11-01 18:48 ` Nick Dokos
2012-11-14 3:27 ` Aaron Ecay
2012-11-14 4:52 ` John Hendy
2012-11-14 6:32 ` Aaron Ecay
2012-11-14 8:28 ` Thomas S. Dye
2012-11-14 8:35 ` Andreas Leha
2012-11-16 15:45 ` Eric Schulte
2012-11-16 17:47 ` Andreas Leha
2012-11-16 19:00 ` John Hendy
2012-11-16 20:25 ` Achim Gratz
2012-11-17 17:12 ` Eric Schulte
2012-11-18 0:41 ` Aaron Ecay
2012-11-18 0:57 ` Eric Schulte
2012-11-18 1:41 ` Aaron Ecay
2012-11-19 1:18 ` Eric Schulte
2012-11-19 5:11 ` Eric Schulte
2012-08-26 20:11 Alternate format for datetree c b
2012-08-27 1:16 ` John Hendy
2012-08-27 4:04 ` Nick Dokos
2012-08-27 6:08 ` John Hendy
2012-08-28 8:49 ` Ian Barton
2012-08-28 12:49 ` Nick Dokos
2012-08-28 12:50 ` Nick Dokos
2012-08-29 7:49 ` Ian Barton
[not found] ` <lists@manor-farm.org>
2012-08-29 14:17 ` Nick Dokos
2012-08-29 14:25 ` John Hendy
2012-08-29 20:01 ` Ian Barton
2012-09-06 7:46 ` Ian Barton
2012-09-06 5:42 ` c b
2012-09-06 6:26 ` Nick Dokos
2012-09-06 7:00 ` Jambunathan K
2012-09-06 15:33 ` John Hendy
2012-09-06 16:08 ` Jonathan Leech-Pepin
2011-11-02 2:22 Pass LaTeX exporter option prior to \documentclass John Hendy
2011-11-02 2:43 ` suvayu ali
2011-11-02 10:30 ` suvayu ali
2011-11-03 17:48 ` John Hendy
2011-11-03 17:55 ` suvayu ali
2011-11-03 18:07 ` John Hendy
2011-11-04 17:29 ` Nick Dokos
2011-11-04 19:29 ` suvayu ali
2011-10-19 14:54 Prompt for time when clocking in? Nathan Neff
2011-10-19 15:12 ` John Hendy
2011-10-19 15:35 ` Nick Dokos
2011-10-20 16:15 ` Nathan Neff
2011-10-20 17:09 ` Nick Dokos
2011-10-20 17:44 ` Nathan Neff
2011-10-19 16:37 ` Bernt Hansen
2011-08-05 22:15 Handling errors in command line exporting of agenda? John Hendy
2011-08-05 23:34 ` suvayu ali
2011-08-05 23:35 ` suvayu ali
2011-08-08 18:12 ` John Hendy
2011-08-08 18:28 ` suvayu ali
2011-08-08 18:53 ` John Hendy
2011-08-08 18:59 ` suvayu ali
2011-08-08 19:48 ` John Hendy
2011-08-08 20:22 ` suvayu ali
2011-08-08 20:31 ` John Hendy
2011-08-08 20:33 ` Nick Dokos
2011-08-08 20:37 ` Nick Dokos
2011-08-08 20:54 ` John Hendy
2011-08-08 21:09 ` Nick Dokos
2011-08-08 21:27 ` John Hendy
2011-08-08 21:30 ` suvayu ali
2011-08-08 22:17 ` Nick Dokos
2011-08-08 21:46 ` suvayu ali
2011-06-15 10:29 BUG: Newest org-mode interferes with desktop save Rainer M Krug
2011-06-15 16:49 ` Eric Schulte
2011-06-15 17:35 ` Nick Dokos
2011-06-15 18:23 ` Rainer M Krug
2011-06-15 18:21 ` Rainer M Krug
2011-06-15 18:31 ` Eric Schulte
2011-06-15 18:59 ` Rainer M Krug
2011-06-15 22:40 ` Nick Dokos
2011-06-16 7:15 ` Rainer M Krug
2011-06-16 7:29 ` Jambunathan K
2011-06-16 8:22 ` Rainer M Krug
2011-05-24 15:54 Passing font size to exported LaTeX table John Hendy
2011-05-24 16:44 ` Sebastien Vauban
2011-05-24 18:57 ` John Hendy
2011-05-24 19:25 ` Nick Dokos
2011-05-24 19:31 ` John Hendy
2011-05-24 19:58 ` Thomas S. Dye
2011-05-24 20:42 ` Nick Dokos
2011-05-24 21:12 ` Nick Dokos
2011-05-24 21:19 ` Nick Dokos
2011-05-25 7:22 ` Thomas S. Dye
2011-05-27 0:58 ` suvayu ali
2011-05-27 6:46 ` Thomas S. Dye
2011-05-27 7:07 ` suvayu ali
2011-05-27 16:17 ` Thomas S. Dye
2011-05-27 16:50 ` Suvayu Ali
2011-05-27 17:37 ` Thomas S. Dye
2011-05-27 18:30 ` Suvayu Ali
2011-05-27 21:25 ` Thomas S. Dye
2011-05-28 7:17 ` Sebastien Vauban
2011-05-28 10:14 ` Suvayu Ali
2011-05-28 15:21 ` Nick Dokos
2011-05-28 18:10 ` Suvayu Ali
2011-06-01 18:50 ` Nick Dokos
2011-06-01 19:08 ` Suvayu Ali
2011-06-10 22:31 ` Suvayu Ali
2011-06-13 1:38 ` suvayu ali
2011-06-13 1:52 ` Nick Dokos
2011-06-13 2:40 ` Suvayu Ali
2011-06-13 3:29 ` Nick Dokos
2011-06-13 3:45 ` Thomas S. Dye
2011-06-13 4:27 ` Nick Dokos
2011-06-13 4:56 ` Suvayu Ali
2011-06-13 5:29 ` Nick Dokos
2011-06-13 6:42 ` Suvayu Ali
2011-05-24 20:06 ` Nick Dokos
2011-05-24 19:42 ` Sebastien Vauban
2010-08-21 19:30 Gnuplot unevenly spaced non-numeric data plot? John Hendy
2010-08-21 20:35 ` Eric S Fraga
2010-08-21 20:41 ` Nick Dokos
2010-08-21 21:11 ` John Hendy
2010-08-21 22:41 ` John Hendy
2010-08-21 23:17 ` Nick Dokos
2010-08-23 14:22 ` John Hendy
2010-08-23 15:16 ` Nick Dokos
[not found] ` <AANLkTi=WTLBL1Giq0GTrjCo-A1s=iP4u1Qxn57cH-xnB@mail.gmail.com>
[not found] ` <AANLkTimSVm=-2o39CQ9wSMT276Dee4Tuj9jLKJH-c+cd@mail.gmail.com>
2010-08-24 2:44 ` [For Worg?] " John Hendy
2010-08-24 5:25 ` suvayu ali
2010-08-24 5:56 ` Nick Dokos
2010-08-25 0:32 ` Eric Schulte
2010-08-25 1:06 ` John Hendy
2010-08-25 1:35 ` Eric Schulte
2010-08-25 18:38 ` John Hendy
2010-08-25 18:52 ` Eric Schulte
[not found] ` <jw.hendy@gmail.com>
2012-03-12 21:13 ` Beamer specific setupfile? John Hendy
2012-03-12 21:48 ` Nick Dokos
2012-03-12 22:09 ` John Hendy
2012-03-12 22:30 ` Nick Dokos
2012-03-12 22:44 ` Nick Dokos
2012-03-13 5:02 ` John Hendy
2012-03-13 5:46 ` Nick Dokos
2012-04-25 8:16 ` Eric Fraga
2012-04-25 8:59 ` Eric Fraga
2012-03-12 23:01 ` Nick Dokos
2012-03-12 21:51 ` Nick Dokos
2012-03-12 22:05 ` Nick Dokos
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