Failure of convert-ly to run

Hello,

I have a file for which convert-ly crashes. The message is:

convert-ly (GNU LilyPond) 2.24.3

convert-ly: Traitement de « k477-basset-horn.ly »...
Conversion en cours : 2.5.0, 2.5.1, 2.5.2, Traceback (most recent call
last):
  File "/usr/bin/convert-ly", line 445, in <module>
    main()
  File "/usr/bin/convert-ly", line 429, in main
    errors += do_one_file(f)
              ^^^^^^^^^^^^^^
  File "/usr/bin/convert-ly", line 340, in do_one_file
    do_conversion(input, from_version, to_version)
  File "/usr/bin/convert-ly", line 246, in do_conversion
    newstr = x[1](s)
             ^^^^^^^
  File "/usr/share/lilypond/2.24.3/python/convertrules.py", line 2154, in
conv
    s = re.sub(r'\\markup\s*{([^}]|{[^}]*})*}', get_markup, s)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/re/__init__.py", line 185, in sub
    return _compile(pattern, flags).sub(repl, string, count)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/share/lilypond/2.24.3/python/convertrules.py", line 2152, in
get_markup
    s = re.sub(r'''((\\"|})\s*){''', '\2 \\line {', s)
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/re/__init__.py", line 185, in sub
    return _compile(pattern, flags).sub(repl, string, count)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/re/__init__.py", line 317, in _subx
    template = _compile_repl(template, pattern)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/re/__init__.py", line 308, in _compile_repl
    return _parser.parse_template(repl, pattern)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3.11/re/_parser.py", line 1087, in parse_template
    raise s.error('bad escape %s' % this, len(this)) from None
re.error: bad escape \l at position 2

----------------------------------------------------------------------------------

It seems to be fixed by changing line 2152 of convertrules.py by putting
the second argument as a raw string:
s = re.sub(r'''((\\"|})\s*){''', r'\2 \\line {', s)

Thanks for the amazing work on Lilypond!
Élie