[IPython-user] Question about ipython.el

[bruno]

Hello,

I am using emacs as my interface to python, mainly because of the 
ipython integration and thus the ease o using interactive graph with the 
matplotlib module.

I would like however to customize this interface to become more 
efficient. In particular I regularly need to restart the ipython shell 
to test python modules I write. 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 ?

Thanks  in advance and anyway thanks for the nice softwares

Bruno Chazelas