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Can python.el be set up in a way that it will automatically save the current buffer when python-shell-send-buffer is called (e.g. by C-c C-c)?

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It sure can be!

First, create a function that saves the buffer before calling python-shell-send-buffer:

(defun my-python-shell-send-buffer ()
  "Save the current buffer before calling `python-shell-send-buffer'."
  (interactive)
  (save-buffer)
  (python-shell-send-buffer))

The interactive line allows you to call the function using M-x. I suspect the other lines are self-explanatory. If not, read about them using C-h f.

Next, override C-c C-c in python-mode with the new function:

(define-key python-mode-map (kbd "C-c C-c") 'my-python-shell-send-buffer)

After executing each of these lines, when you reload python-mode, C-c C-c will work as you desire. Put these lines in init.el and this will be the new behavior for python-mode.

  • Cool, thanks! I had to make a minor adjustment, though, in order to avoid an error message: (add-hook 'python-mode-hook (lambda () (define-key python-mode-map (kbd "C-c C-c") 'my-python-shell-send-buffer))) – B_old Feb 26 at 15:33

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