save-excursion not working for python-shell-send-buffer

[Chen Zhaoyang]

Hello,

After executing (python-shell-send-buffer) my point does not return to
the mark but the beginning of the buffer. I am able to reproduce this
behavior on "emacs -Q" (my emacs is "GNU Emacs 30.0.50 (build 11,
x86_64-pc-linux-gnu, GTK+ Version 3.24.24, cairo version 1.16.0) of
2023-02-14"). I wrote a wrapper function like this

(defun site/python-shell-send-buffer ()
  (interactive)
  (save-excursion
    (python-shell-send-buffer nil)))

which works as desired (??).

Best,
Chen Zhaoyang