Re: Bug: ob-python issue in Emacs 28 [9.4.4]

[Jack Kamm <jackkamm@gmail.com>]

Hi Augusto,

> In Emacs 28, `python-shell-send-string' prints an additional newline
> between the prompt and output (among other things, so you can tell
> whether or not the inferior process is busy at any given time).
>
> However, this interferes with ob-python, see e.g.
> https://debbugs.gnu.org/cgi/bugreport.cgi?bug=50514

Thanks for reporting this, and also for your recent improvements to
python.el.

Would you be willing to update your patch to use

(if (version< emacs-version "28") 0 1)

And add a commit message and changelog, so we can push it to master?

> As a permanent solution, I would suggest to replace org-babel-chomp
> and actually strip whitespace from both ends of the string outputted
> from the Python interpreter.  (IPython even has a configuration option
> to add extra whitespace before or after the output.)

I think this would be problematic, because then it would be impossible
to print output with leading or trailing whitespace, which it should be
possible to do.

Best,
Jack