emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed
From: Daniel Clemente <n142857@gmail.com>
To: Eric Schulte <schulte.eric@gmail.com>
Cc: org-mode Mailinglist <emacs-orgmode@gnu.org>
Subject: Re: results from Python block not visible
Date: Wed, 2 Jul 2014 23:51:05 +0700	[thread overview]
Message-ID: <CAJKAhPABiciN+Bg0kQb2Zim0Yh81QFxaxR7DKK=Qcp+dw6X2Kg@mail.gmail.com> (raw)
In-Reply-To: <CAJKAhPB5+VacbGZC=ruHsWY4B-8OZfCviz-7QigxzSdN3Z6o3w@mail.gmail.com>

[-- Attachment #1: Type: text/plain, Size: 2812 bytes --]

Since this org-babel + tramp-cache incompatibility is very puzzling, I
continued researching it. The line that makes my Python block stop working
(i.e. outputting None instead of the "x" I asked with print "x') is this
one, found in tramp-cache.el:

(add-hook 'kill-buffer-hook 'tramp-flush-file-function)

Its code is:

(defun tramp-flush-file-function ()
 "Flush all Tramp cache properties from `buffer-file-name'.
This is suppressed for temporary buffers."
 (unless (string-match "^ \\*temp\\*" (or (buffer-name) ""))
   (let ((bfn (if (stringp (buffer-file-name))
  (buffer-file-name)
default-directory)))
     (when (tramp-tramp-file-p bfn)
(with-parsed-tramp-file-name bfn nil
 (tramp-flush-file-property v localname))))))


That "temporary buffer detector" is working correctly because org-babel
buffers have names like " *temp*-993012", which are correctly detected.
I'm afraid that the (string-match ...) will forget the last search, so later
(match-string) done by babel will be from the wrong search. Can this happen?

--
Daniel


On Fri, Jun 27, 2014 at 4:50 PM, Daniel Clemente <n142857@gmail.com> wrote:

> I confirm that with Debian's Emacs, org-babel works well after the
> (require 'tramp-cache):
> GNU Emacs 24.3.1 (x86_64-pc-linux-gnu, GTK+ Version 3.12.2) of 2014-06-06
> on barber, modified by Debian
>
> But it fails with my compiled one from 2014-06-20.
>
> So is it because of tramp-cache or org-babel?
>
>
> On Fri, Jun 27, 2014 at 12:19 AM, Daniel Clemente <n142857@gmail.com>
> wrote:
>
>>
>> El Thu, 26 Jun 2014 12:36:47 -0400 Eric Schulte va escriure:
>> > > #+BEGIN_SRC python :results output
>> > > print "x"
>> > > #+END_SRC
>> > >
>> > > It prints:
>> > >
>> > > #+RESULTS:
>> > > : None
>> > >
>> > > I expected to see "x". This worked some days ago.
>> > >
>> >
>> > This works for me using the latest version of Org-mode with an Emacs
>> > launched by running "make vanilla" from the base of the Org-mode repo.
>> >
>>   I didn't know "make vanilla". It worked fine from there, I don't know
>> why from "emacs -Q" it didn't.
>>
>> > Maybe the problem is in your configuration?
>>
>>   Exactly, it is from my configuration, because after loading my full
>> configuration, I see the problem again and code highlighting suddenly
>> disappears.
>>
>>   I identified the exact lines that cause org-babel to stop failing.
>> Bewonder:
>>
>>   (autoload 'tramp "tramp" "Remotely access files." t)
>>   (require 'tramp-cache)
>>
>>   Yes! After C-x C-e on the first line, org-babel still works. After C-x
>> C-e on the second line, it doesn't work anymore.
>>   There were some Tramp changes in latest Emacs, maybe they are bad. I'm
>> using:  GNU Emacs 24.4.50.1 (x86_64-unknown-linux-gnu, X toolkit, Xaw
>> scroll bars) of 2014-06-20 on la4
>>
>>
>>   What a strange bug...
>>
>>
>

[-- Attachment #2: Type: text/html, Size: 4066 bytes --]

  reply	other threads:[~2014-07-02 16:51 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-26 16:16 Daniel Clemente
2014-06-26 16:36 ` Eric Schulte
2014-06-26 17:19   ` Daniel Clemente
2014-06-27  9:50     ` Daniel Clemente
2014-07-02 16:51       ` Daniel Clemente [this message]
2014-07-24  7:18         ` Daniel Clemente
2014-07-24 10:07           ` Michael Albinus

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='CAJKAhPABiciN+Bg0kQb2Zim0Yh81QFxaxR7DKK=Qcp+dw6X2Kg@mail.gmail.com' \
    --to=n142857@gmail.com \
    --cc=emacs-orgmode@gnu.org \
    --cc=schulte.eric@gmail.com \
    --subject='Re: results from Python block not visible' \
    /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

Code repositories for project(s) associated with this 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).