          (command-line-start (concat
 			      (shell-quote-argument live-py-version)
 			      " "
+                              live-py-args
+                              " "
 			      (shell-quote-argument tracer-path)
 			      " -f "
 			      (shell-quote-argument buffer-file-name)))

(defvar live-py-dir nil)
(defvar live-py-path nil)
(defvar live-py-version nil)
(defvar live-py-update-all-delay 0.5
  "Minimum inactivity time after change in source buffer before update.
Floating point number with seconds.

                         (read-shell-command "Type the python command:")))
  (live-py-update-all))

(defun live-py-set-args()
  "Prompt user to enter arguments for the python command, with input history support.
One possible value is '-Q new'."
  (interactive)
  (setq live-py-args (read-shell-command "Type the python arguments:"))
  (live-py-update-all))

(defun live-py-set-dir()
  "Prompt user to enter the working directory."
  (interactive)
