Re: [sage-support] Sligh(?) problem with sage_mode

2013-06-21 Thread Emmanuel Charpentier
Dear Ivan,

Followup to yor unanswered questions of yesterday :

[ Snip... ]

 The best would be if you could give a minimal recipe starting from `emacs 
 -Q`.


 Won't do any good to you : my (require sage sage) is in my .emacs, 
 which won't get searchde when starting emacs with -Q flag.


 What I meant was something like

 $ emacs -Q

 ;; Evaluate in scratch:
 (add-to-list 'load-path /usr/local/sage/local/share/emacs)
 (require 'sage sage)
 (setq sage-command /usr/local/bin/sage)
 (require 'sage-view sage-view)
 (add-hook 'sage-startup-after-prompt-hook 'sage-view)

 M-x sage RET

 C-x C-c

 Repeat.  

 Is that enough to reproduce it?  That eliminates other problems in your 
 .emacs file, though I don't think that's very likely the problem.  I think 
 it has to be something in .sage, but I've been wrong before. :-)

 Same result as before : first time (after removing ~/.sage), wiorks like a 
charm, second time : dead emacs.
 

 The simplest way : start emacs from command line or from a gnome icon, 
 type M-x sage in the startum screen, and voilà : first time it works like 
 a charm, second time (= second emacs invocation) : a dead emacs.


 What happens if you turn on debugging (M-x toggle-debug-on-quit RET) and 
 then run M-x sage and press C-g when it's frozen?


Aha ! When, I press ^G, the frame gets divided in two windows : 
*SAGE-newerr* and *Backtrace*.
Content off *SAGE-newerr* :
Debugger entered--Lisp error: (quit)
  python-send-string(%colors NoColor)
  sage-send-command(%colors NoColor nil)
  sage-send-startup-before-prompt-command()
  run-hooks(sage-startup-before-prompt-hook)
  sage(nil)
  call-interactively(sage record nil)
  command-execute(sage record)
  execute-extended-command(nil sage)
  call-interactively(execute-extended-command nil nil)

Content of *Backtrace* :
--
| Sage Version 5.9, Release Date: 2013-04-30 |
| Type notebook() for the browser-based notebook interface.|
| Type help() for help.|
--
  RET
KeyboardInterrupt
sage: 

Quite interestingly, sage is still active, and answers to command, but 
output is *not* typeset :
sage: 2+2
4
sage: integrate(tan(x), x)
log(sec(x))
sage: 

quitting sage then C-x C-c does a normal emacs exit (no hangup). 
Repeating leads to the same result.

I tried to disable online typesetting and online plot in the .emacs file : 
I still get a dead emacs when requesting a sage session...

 Now for the weirder part : I observed this behaviour on two machines : a 
 normal desktop and a large desktop used as a server. On a third machine 
 (a small notebook I bring with me almost everywhere), things work as 
 advertised. I can't for the life of me state what differs between these 
 machines re: sage and/or emacs. All of them also have texlive, R and maxima 
 installations, all of them run Debian testing (updated often).


 Is there any way I could get a temporary account on the server to see if I 
 can debug it there?  Email me privately with username and password if so.


OK : what is your mail address ?  Mail me at emanuel period charpentier hat 
gmail.com
 

 Do they all have the same versions of Emacs, Sage, and same configuration 
 files?  Perhaps .bashrc could come into play as well by setting the 
 environment variable RANDOM_BUGS=1 :-)


Currently : big desktop : sage 5.10, small desktop and notebook : 
sage 5.9. In all three cases, I updated R to 3.0.1 (see TRAC#14706) and 
installed database_gap_4.5.7, dot2tex and sage_mode_0.9.1. All of them are 
running Debian jessie, updatete about daily. The relevant .bashrc are about 
pristine. Big_desktop has a sage-5.10 directory belonging to user sage, 
symlinked to /usr/local/sage. Small desktop has a /usr/local/sage-5.9 
directory belonging to me, symlinked as /usr/local/sage. notebook has a 
sage5-9 directory in my home directory, symlinked as /usr/local/sage. In 
all cases, /usr/local/bn/sage is a symlink to /usr/local/sage/sage.
 


 Heisenbug ?


 Well, I've certainly never seen it, but there's probably a good reason for 
 it.


Schrödinbug ?? 

Again, thank you for your time and your help !


  Emmanuel Charpentier

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Re: [sage-support] Sligh(?) problem with sage_mode

2013-06-21 Thread Ivan Andrus
On Jun 21, 2013, at 8:17 AM, Emmanuel Charpentier 
emanuel.charpent...@gmail.com wrote:

 Dear Ivan,
 
 Followup to yor unanswered questions of yesterday :
 
 [ Snip... ]
  
 The simplest way : start emacs from command line or from a gnome icon, type 
 M-x sage in the startum screen, and voilà : first time it works like a 
 charm, second time (= second emacs invocation) : a dead emacs.
 
 What happens if you turn on debugging (M-x toggle-debug-on-quit RET) and then 
 run M-x sage and press C-g when it's frozen?
 
 Aha ! When, I press ^G, the frame gets divided in two windows : *SAGE-newerr* 
 and *Backtrace*.
 Content off *SAGE-newerr* :
 Debugger entered--Lisp error: (quit)
   python-send-string(%colors NoColor)
   sage-send-command(%colors NoColor nil)
   sage-send-startup-before-prompt-command()
   run-hooks(sage-startup-before-prompt-hook)
   sage(nil)
   call-interactively(sage record nil)
   command-execute(sage record)
   execute-extended-command(nil sage)
   call-interactively(execute-extended-command nil nil)
 
 Content of *Backtrace* :
 --
 | Sage Version 5.9, Release Date: 2013-04-30 |
 | Type notebook() for the browser-based notebook interface.|
 | Type help() for help.|
 --
   RET
 KeyboardInterrupt
 sage: 

I thought it might be something like this.  Now if I just knew what caused it. 
:-)

 Quite interestingly, sage is still active, and answers to command, but output 
 is not typeset :
 sage: 2+2
 4
 sage: integrate(tan(x), x)
 log(sec(x))
 sage: 

That's because sage-view isn't turned on until after all the initialization 
happens and you quit before then.   You should be able to turn sage-view on 
manually via M-x sage-view.

 quitting sage then C-x C-c does a normal emacs exit (no hangup). Repeating 
 leads to the same result.

-Ivan

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Re: [sage-support] Sligh(?) problem with sage_mode

2013-06-20 Thread Emmanuel Charpentier


Le jeudi 20 juin 2013 03:05:21 UTC+2, Ivan Andrus a écrit :

 Emmanuel,

 That seems really weird.  

 
Indeed :-) It is even more weird than that : see after the answers to your 
questions...
 

 Did previous versions of sage and/or sage-mode work?  


Dunno : I started to switch to sage (from maxima) about 6 months ago, and I 
started with the notebook (which has its points for learning re: online 
documentation). Since I am a very *light* user of sage (my main profession 
has little to do with pure math, and my original profession absolutely none 
(even if we also work on hard roots:-)). I was veru fond of the imaxima 
mode, and wanted to emulate this behaviour with sage.
 

 Can you start sage from the command line after it doesn't work from Emacs? 
  


Yes. Never was a problem
 

 How are you launching Emacs, from within Sage perhaps?  


Nope, the reverse : either emacs -f sage from the command line or M-x 
sage from within emacs. The habit came to me by way of R and ESS...
 

 Do you exit Sage before exiting Emacs?  


Yes.
 

 Do you do anything else unusual?  


Most of my professional entourage find unusual (to say the least) to need 
any form of symbolic math software... :-).
 

 What does your .emacs contain (especially sage related)?


See enclosed copy
 

 The best would be if you could give a minimal recipe starting from `emacs 
 -Q`.


Won't do any good to you : my (require sage sage) is in my .emacs, which 
won't get searchde when starting emacs with -Q flag.

The simplest way : start emacs from command line or from a gnome icon, type 
M-x sage in the startum screen, and voilà : first time it works like a 
charm, second time (= second emacs invocation) : a dead emacs.

Now for the weirder part : I observed this behaviour on two machines : a 
normal desktop ang a large desktop used as a server. On a third machine 
(a small notebook I bring with me almost everywhere), things work as 
advertised. I can't for the life of me state what differs between these 
machines re: sage and/or emacs. All of theme also have texlive, R and 
maxima installations, all of them run Debian testing (updated often).

Heisenbug ?

Sincerely,


Emmanuel Charpentier
 

 -Ivan

 On Jun 19, 2013, at 11:10 AM, Emmanuel Charpentier 
 emanuel.c...@gmail.comjavascript: 
 wrote:

 A precision : The first time meants th first emacs session : at the 
 first invpcatio of emacs, you can quit a sage session, kill the 
 corresponding buffer and re-launch sage in emacs at will : it will work. 
 But if you leave emacs and lauch it again, you will get a dead sage and a 
 waiting-forever emacs.

   
   Emmanuel Charpentier


 Le mercredi 19 juin 2013 15:50:48 UTC+2, Emmanuel Charpentier a écrit :

 Dear list,

 I quite recently installed sage_mode 0.9.1 on my installation of sage 5.9 
 (patched with a newer R version) on Debian jessie.

 The firs try is a charm : output gets typeset in emacs (emacs24), plots 
 are plotted (a bit too wide and way too tall for an 80x24 frame, but that's 
 not my point). Joy.

 The second time, nothing works  : emacs waits forever for a sage process 
 whose python is gone zombie (ps axf dixit). I have to kill -TERM it.

 Various attempts are inefficient until, SOL, I move away my .sage 
 directory : lo ! Emacs works again (one time...) and sage ditto. But, of 
 course, this creates a new .sage directiory, which has *exactly the same 
 problems*. Aaaarghhh...

 Any hint ?

 setup


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.emacs
Description: Binary data


Re: [sage-support] Sligh(?) problem with sage_mode

2013-06-20 Thread Ivan Andrus

On Jun 20, 2013, at 8:32 AM, Emmanuel Charpentier 
emanuel.charpent...@gmail.com wrote:

 Le jeudi 20 juin 2013 03:05:21 UTC+2, Ivan Andrus a écrit :
 Emmanuel,
 
 That seems really weird.  
  
 Indeed :-) It is even more weird than that : see after the answers to your 
 questions…

:-)

 Did previous versions of sage and/or sage-mode work?  
 
 Dunno : I started to switch to sage (from maxima) about 6 months ago, and I 
 started with the notebook (which has its points for learning re: online 
 documentation). Since I am a very *light* user of sage (my main profession 
 has little to do with pure math, and my original profession absolutely none 
 (even if we also work on hard roots:-)). I was veru fond of the imaxima mode, 
 and wanted to emulate this behaviour with sage.

Fair enough.

 Can you start sage from the command line after it doesn't work from Emacs?  
 
 Yes. Never was a problem

Curiouser and curiouser.

 How are you launching Emacs, from within Sage perhaps?  
 
 Nope, the reverse : either emacs -f sage from the command line or M-x sage 
 from within emacs. The habit came to me by way of R and ESS...
 
 Do you exit Sage before exiting Emacs?  
 
 Yes.
  
 Do you do anything else unusual?  
 
 Most of my professional entourage find unusual (to say the least) to need any 
 form of symbolic math software... :-).

:-)  Good job.

 What does your .emacs contain (especially sage related)?
 
 See enclosed copy

It's pretty simple and I don't see anything that I think would cause the 
problem...

 The best would be if you could give a minimal recipe starting from `emacs -Q`.
 
 Won't do any good to you : my (require sage sage) is in my .emacs, which 
 won't get searchde when starting emacs with -Q flag.

What I meant was something like

$ emacs -Q

;; Evaluate in scratch:
(add-to-list 'load-path /usr/local/sage/local/share/emacs)
(require 'sage sage)
(setq sage-command /usr/local/bin/sage)
(require 'sage-view sage-view)
(add-hook 'sage-startup-after-prompt-hook 'sage-view)

M-x sage RET

C-x C-c

Repeat.  

Is that enough to reproduce it?  That eliminates other problems in your .emacs 
file, though I don't think that's very likely the problem.  I think it has to 
be something in .sage, but I've been wrong before. :-)

 The simplest way : start emacs from command line or from a gnome icon, type 
 M-x sage in the startum screen, and voilà : first time it works like a 
 charm, second time (= second emacs invocation) : a dead emacs.

What happens if you turn on debugging (M-x toggle-debug-on-quit RET) and then 
run M-x sage and press C-g when it's frozen?

 Now for the weirder part : I observed this behaviour on two machines : a 
 normal desktop and a large desktop used as a server. On a third machine (a 
 small notebook I bring with me almost everywhere), things work as advertised. 
 I can't for the life of me state what differs between these machines re: sage 
 and/or emacs. All of them also have texlive, R and maxima installations, all 
 of them run Debian testing (updated often).

Is there any way I could get a temporary account on the server to see if I can 
debug it there?  Email me privately with username and password if so.

Do they all have the same versions of Emacs, Sage, and same configuration 
files?  Perhaps .bashrc could come into play as well by setting the environment 
variable RANDOM_BUGS=1 :-)

 Heisenbug ?

Well, I've certainly never seen it, but there's probably a good reason for it.

 Sincerely,
 
   
   Emmanuel Charpentier

-Ivan

  
 -Ivan
 
 On Jun 19, 2013, at 11:10 AM, Emmanuel Charpentier emanuel.c...@gmail.com 
 wrote:
 
 A precision : The first time meants th first emacs session : at the 
 first invpcatio of emacs, you can quit a sage session, kill the 
 corresponding buffer and re-launch sage in emacs at will : it will work. But 
 if you leave emacs and lauch it again, you will get a dead sage and a 
 waiting-forever emacs.
 
  
Emmanuel Charpentier
 
 
 Le mercredi 19 juin 2013 15:50:48 UTC+2, Emmanuel Charpentier a écrit :
 Dear list,
 
 I quite recently installed sage_mode 0.9.1 on my installation of sage 5.9 
 (patched with a newer R version) on Debian jessie.
 
 The firs try is a charm : output gets typeset in emacs (emacs24), plots are 
 plotted (a bit too wide and way too tall for an 80x24 frame, but that's not 
 my point). Joy.
 
 The second time, nothing works  : emacs waits forever for a sage process 
 whose python is gone zombie (ps axf dixit). I have to kill -TERM it.
 
 Various attempts are inefficient until, SOL, I move away my .sage directory 
 : lo ! Emacs works again (one time...) and sage ditto. But, of course, this 
 creates a new .sage directiory, which has exactly the same problems. 
 Aaaarghhh...
 
 Any hint ?
 
 setup
 
 -- 
 You received this message because you are 

Re: [sage-support] Sligh(?) problem with sage_mode

2013-06-20 Thread Emmanuel Charpentier
Dear Ivan,

It gets even weirder (it begins to look as the start of a summertime 
thriller). *Before* seeing your last reply, I saw that sage 5.10 was out 
and installed it on my big desktop machine (compilation from sources, 
installation of the new R spkg and related patch, installation of 
database_gap 4.5.7 as recommended by the readme, and of dot2tex and 
sage_mode).

This time, even after suppression of the .sage directory, it doesn't even 
work : M-x sage succeeds, giving me a prompt ; but typesetting doesn't 
work. Asking for 2+2 gives me :
Typesetting \newcommand{\Bold}[1]{\mathbf{#1}}4...
[ BTW : I had to type this in this mail ; copy-and-paste from the emacs 
wondow gives this :
htmlscript 
type=math/tex\newcommand{\Bold}[1]{\mathbf{#1}}4/script/html
]
in the *SAGE-main* buffer and the following messages in the *Messages* 
buffer :
Creation of `/home/charpent/.sage/tmp/emacs20421oDo' failed: Creating 
directory: aucun fichier ou dossier de ce type, 
/home/charpent/.sage/tmp/emacs20421oDo
error in process filter: sage-view-process-overlay: Opening output file: 
aucun fichier ou dossier de ce type, 
/home/charpent/.sage/tmp/emacs20421oDo/sage-view_20421bAW.tex
error in process filter: Opening output file: aucun fichier ou dossier de 
ce type, /home/charpent/.sage/tmp/emacs20421oDo/sage-view_20421bAW.tex

Now for your questions : I cannot access tonight my small desktop 
machine, which still has 5.9 and exhibits the original problem : it will 
have to wait for tomorrow afternoon... Stay tuned !

Thank you very much for your attention,

  Emmanuel 
Charpentier

Le jeudi 20 juin 2013 20:44:08 UTC+2, Ivan Andrus a écrit :


 On Jun 20, 2013, at 8:32 AM, Emmanuel Charpentier 
 emanuel.c...@gmail.comjavascript: 
 wrote:

 Le jeudi 20 juin 2013 03:05:21 UTC+2, Ivan Andrus a écrit :

 Emmanuel,

 That seems really weird.  

  
 Indeed :-) It is even more weird than that : see after the answers to your 
 questions…


 :-)

 Did previous versions of sage and/or sage-mode work?  


 Dunno : I started to switch to sage (from maxima) about 6 months ago, and 
 I started with the notebook (which has its points for learning re: online 
 documentation). Since I am a very *light* user of sage (my main profession 
 has little to do with pure math, and my original profession absolutely none 
 (even if we also work on hard roots:-)). I was veru fond of the imaxima 
 mode, and wanted to emulate this behaviour with sage.


 Fair enough.

 Can you start sage from the command line after it doesn't work from Emacs? 
  


 Yes. Never was a problem


 Curiouser and curiouser.

 How are you launching Emacs, from within Sage perhaps?  


 Nope, the reverse : either emacs -f sage from the command line or M-x 
 sage from within emacs. The habit came to me by way of R and ESS...

 Do you exit Sage before exiting Emacs?  


 Yes.
  

 Do you do anything else unusual?  


 Most of my professional entourage find unusual (to say the least) to need 
 any form of symbolic math software... :-).


 :-)  Good job.

 What does your .emacs contain (especially sage related)?


 See enclosed copy


 It's pretty simple and I don't see anything that I think would cause the 
 problem...

 The best would be if you could give a minimal recipe starting from `emacs 
 -Q`.


 Won't do any good to you : my (require sage sage) is in my .emacs, 
 which won't get searchde when starting emacs with -Q flag.


 What I meant was something like

 $ emacs -Q

 ;; Evaluate in scratch:
 (add-to-list 'load-path /usr/local/sage/local/share/emacs)
 (require 'sage sage)
 (setq sage-command /usr/local/bin/sage)
 (require 'sage-view sage-view)
 (add-hook 'sage-startup-after-prompt-hook 'sage-view)

 M-x sage RET

 C-x C-c

 Repeat.  

 Is that enough to reproduce it?  That eliminates other problems in your 
 .emacs file, though I don't think that's very likely the problem.  I think 
 it has to be something in .sage, but I've been wrong before. :-)

 The simplest way : start emacs from command line or from a gnome icon, 
 type M-x sage in the startum screen, and voilà : first time it works like 
 a charm, second time (= second emacs invocation) : a dead emacs.


 What happens if you turn on debugging (M-x toggle-debug-on-quit RET) and 
 then run M-x sage and press C-g when it's frozen?

 Now for the weirder part : I observed this behaviour on two machines : a 
 normal desktop and a large desktop used as a server. On a third machine 
 (a small notebook I bring with me almost everywhere), things work as 
 advertised. I can't for the life of me state what differs between these 
 machines re: sage and/or emacs. All of them also have texlive, R and maxima 
 installations, all of them run Debian testing (updated often).


 Is there any way I could get a temporary account on the server to see if I 
 can debug it there?  Email me privately with username and password if so.

 Do they all have the same versions of 

Re: [sage-support] Sligh(?) problem with sage_mode

2013-06-20 Thread Ivan Andrus

On Jun 20, 2013, at 2:14 PM, Emmanuel Charpentier 
emanuel.charpent...@gmail.com wrote:

 Dear Ivan,
 
 It gets even weirder (it begins to look as the start of a summertime 
 thriller). *Before* seeing your last reply, I saw that sage 5.10 was out and 
 installed it on my big desktop machine (compilation from sources, 
 installation of the new R spkg and related patch, installation of 
 database_gap 4.5.7 as recommended by the readme, and of dot2tex and 
 sage_mode).
 
 This time, even after suppression of the .sage directory, it doesn't even 
 work : M-x sage succeeds, giving me a prompt ; but typesetting doesn't work. 
 Asking for 2+2 gives me :
 Typesetting \newcommand{\Bold}[1]{\mathbf{#1}}4...
 [ BTW : I had to type this in this mail ; copy-and-paste from the emacs 
 wondow gives this :
 htmlscript 
 type=math/tex\newcommand{\Bold}[1]{\mathbf{#1}}4/script/html
 ]
 in the *SAGE-main* buffer and the following messages in the *Messages* buffer 
 :
 Creation of `/home/charpent/.sage/tmp/emacs20421oDo' failed: Creating 
 directory: aucun fichier ou dossier de ce type, 
 /home/charpent/.sage/tmp/emacs20421oDo
 error in process filter: sage-view-process-overlay: Opening output file: 
 aucun fichier ou dossier de ce type, 
 /home/charpent/.sage/tmp/emacs20421oDo/sage-view_20421bAW.tex
 error in process filter: Opening output file: aucun fichier ou dossier de ce 
 type, /home/charpent/.sage/tmp/emacs20421oDo/sage-view_20421bAW.tex

I can confirm this problem in the absence of a .sage directory.  I have a fix 
for it, but in the mean time a simple

$ mkdir -p /Users/ivanandres/.sage/tmp/

before starting Emacs should fix it.

 Now for your questions : I cannot access tonight my small desktop machine, 
 which still has 5.9 and exhibits the original problem : it will have to wait 
 for tomorrow afternoon... Stay tuned !

Thanks,
Ivan

 Thank you very much for your attention,
 
   Emmanuel 
 Charpentier
 
 Le jeudi 20 juin 2013 20:44:08 UTC+2, Ivan Andrus a écrit :
 
 On Jun 20, 2013, at 8:32 AM, Emmanuel Charpentier emanuel.c...@gmail.com 
 wrote:
 
 Le jeudi 20 juin 2013 03:05:21 UTC+2, Ivan Andrus a écrit :
 Emmanuel,
 
 That seems really weird.  
  
 Indeed :-) It is even more weird than that : see after the answers to your 
 questions…
 
 :-)
 
 Did previous versions of sage and/or sage-mode work?  
 
 Dunno : I started to switch to sage (from maxima) about 6 months ago, and I 
 started with the notebook (which has its points for learning re: online 
 documentation). Since I am a very *light* user of sage (my main profession 
 has little to do with pure math, and my original profession absolutely none 
 (even if we also work on hard roots:-)). I was veru fond of the imaxima 
 mode, and wanted to emulate this behaviour with sage.
 
 Fair enough.
 
 Can you start sage from the command line after it doesn't work from Emacs?  
 
 Yes. Never was a problem
 
 Curiouser and curiouser.
 
 How are you launching Emacs, from within Sage perhaps?  
 
 Nope, the reverse : either emacs -f sage from the command line or M-x sage 
 from within emacs. The habit came to me by way of R and ESS...
 
 Do you exit Sage before exiting Emacs?  
 
 Yes.
  
 Do you do anything else unusual?  
 
 Most of my professional entourage find unusual (to say the least) to need 
 any form of symbolic math software... :-).
 
 :-)  Good job.
 
 What does your .emacs contain (especially sage related)?
 
 See enclosed copy
 
 It's pretty simple and I don't see anything that I think would cause the 
 problem...
 
 The best would be if you could give a minimal recipe starting from `emacs 
 -Q`.
 
 Won't do any good to you : my (require sage sage) is in my .emacs, which 
 won't get searchde when starting emacs with -Q flag.
 
 What I meant was something like
 
 $ emacs -Q
 
 ;; Evaluate in scratch:
 (add-to-list 'load-path /usr/local/sage/local/share/emacs)
 (require 'sage sage)
 (setq sage-command /usr/local/bin/sage)
 (require 'sage-view sage-view)
 (add-hook 'sage-startup-after-prompt-hook 'sage-view)
 
 M-x sage RET
 
 C-x C-c
 
 Repeat.  
 
 Is that enough to reproduce it?  That eliminates other problems in your 
 .emacs file, though I don't think that's very likely the problem.  I think it 
 has to be something in .sage, but I've been wrong before. :-)
 
 The simplest way : start emacs from command line or from a gnome icon, type 
 M-x sage in the startum screen, and voilà : first time it works like a 
 charm, second time (= second emacs invocation) : a dead emacs.
 
 What happens if you turn on debugging (M-x toggle-debug-on-quit RET) and then 
 run M-x sage and press C-g when it's frozen?
 
 Now for the weirder part : I observed this behaviour on two machines : a 
 normal desktop and a large desktop used as a server. On a third machine (a 
 small notebook I bring with me almost everywhere), things work as 
 advertised. I can't for the life of me state what differs between these 
 

Re: [sage-support] Sligh(?) problem with sage_mode

2013-06-19 Thread Ivan Andrus
Emmanuel,

That seems really weird.  

Did previous versions of sage and/or sage-mode work?  
Can you start sage from the command line after it doesn't work from Emacs?  
How are you launching Emacs, from within Sage perhaps?  
Do you exit Sage before exiting Emacs?  
Do you do anything else unusual?  
What does your .emacs contain (especially sage related)?

The best would be if you could give a minimal recipe starting from `emacs -Q`.

-Ivan

On Jun 19, 2013, at 11:10 AM, Emmanuel Charpentier 
emanuel.charpent...@gmail.com wrote:

 A precision : The first time meants th first emacs session : at the first 
 invpcatio of emacs, you can quit a sage session, kill the corresponding 
 buffer and re-launch sage in emacs at will : it will work. But if you leave 
 emacs and lauch it again, you will get a dead sage and a waiting-forever 
 emacs.
 
   
   Emmanuel Charpentier
 
 
 Le mercredi 19 juin 2013 15:50:48 UTC+2, Emmanuel Charpentier a écrit :
 Dear list,
 
 I quite recently installed sage_mode 0.9.1 on my installation of sage 5.9 
 (patched with a newer R version) on Debian jessie.
 
 The firs try is a charm : output gets typeset in emacs (emacs24), plots are 
 plotted (a bit too wide and way too tall for an 80x24 frame, but that's not 
 my point). Joy.
 
 The second time, nothing works  : emacs waits forever for a sage process 
 whose python is gone zombie (ps axf dixit). I have to kill -TERM it.
 
 Various attempts are inefficient until, SOL, I move away my .sage directory : 
 lo ! Emacs works again (one time...) and sage ditto. But, of course, this 
 creates a new .sage directiory, which has exactly the same problems. 
 Aaaarghhh...
 
 Any hint ?
 
 setup
 
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