[IPython-user] Question about ipython.el

[Alexander Schmolck]

bruno <bruno.chazelas@ias.u-psud.fr> writes:

> I am quite a newbie to python and it is the only sure way I found to be sure
> my modifications are taken into account.
>
> As a consequence I would like to add the following function to emacs : 
> kill ipython and restart it in a single key-stroke. I have begun to 
> learn Elisp to achieve this aim. 
> I nearly managed to do so but my attempt fails very near to completion. I am
> seeking for help.
>
> here is the code I added to my .emacs :
>
> (defun py-shell-stop-and-restart ()
>   "Stop the current python process"
>   (interactive)
>   (setq oldbuf (current-buffer))
>   (setq oldwindow (selected-window))
>   (if (get-process "Python")
>     (progn (kill-process "Python")
>            (message "Python Killed"))
>     (message "Python is not running Yet"))
>   (select-window oldwindow)
>   (switch-to-buffer oldbuf)
>   (py-shell)
>   )
> (define-key py-mode-map "\C-c;"     'py-shell-stop-and-restart)
>
> This codes properly kills the python interpreter if it is running, but 
> il fails to restart it. I don't understand why. It should restart via 
> the (py-shell-start) function. More strange the (py-shell) works when 
> the ipython shell is not working and thus cannot be killed.
>
> any one has an idea ?

Not sure what's going on (my first, and possibly completely wrong, guess would
be the killing isn't finished by the time py-shell is called, but the process
handling etc. in emacs is not presently mentally available to me and I've got
no time to look it up again right now). Have you tried adding a delay?

Maybe a quick fix would be to try to define a keyboard macro to do something
like "C-d and yes and M-x py-shell" roughly like so:

C-x ( C-d y RET M-x py-shell C-x )

Then test it by running it with C-x e, and if it works save it -- best resort
to your emacs manual, but here's some doc for an old emacs version:

<http://www.delorie.com/gnu/docs/emacs/emacs_489.html>

if everything fails comp.emacs might prove hepful.

>
> Thanks  in advance and anyway thanks for the nice softwares
>
> Bruno Chazelas

'as