display/encoding issue from python-code

["Andreas Röhler" <andreas.roehler@easy-emacs.de>]

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Hi,

got a display and encoding issue from some python-code:

day = [
     r'\d{2}',    #  "DD"
]

In a plain python-file all seems fine.

See attached align-day.py

But, check with the following snippet:

(defun my-test()
   (interactive)
   (set-buffer (get-buffer-create "my-test-buffer"))
   (switch-to-buffer (current-buffer))
   (python-mode)
   (insert "day = [
     r'\d{2}',    #  \"DD\"
]"))

In my-test-buffer instead of

r'\d

appears

r'^?

See attached my-test.png

Not only that it looks strange, ‘\d’ now seems to count as one character 
in buffer, so ‘string-match’ for example doesn't return the correct 
position any more.

Setting ‘buffer-file-coding-system’ to ‘utf-8-unix’ explicitly didn't help.

Any suggestion?

Thanks,
Andreas

GNU Emacs 31.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version 3.24.33, 
cairo version 1.16.0) of 2024-08-12

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day = [
    r'\d{2}'    #  "DD" 
]

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