glade2script-python3:2711: SyntaxWarning: invalid escape sequence

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When installing boot-repair on Kubuntu 24.04:

Processing triggers for desktop-file-utils (0.27-2build1) ...
/usr/bin/glade2script-python3:2711: SyntaxWarning: invalid escape sequence '\('
  if re.search(item.replace('(', '\(').replace(')', '\)'), text):
/usr/bin/glade2script-python3:2711: SyntaxWarning: invalid escape sequence '\)'
  if re.search(item.replace('(', '\(').replace(')', '\)'), text):
/usr/bin/glade2script-python3:2782: SyntaxWarning: invalid escape sequence '\('
  if re.search(item.replace('(', '\(').replace(')', '\)'), text):
/usr/bin/glade2script-python3:2782: SyntaxWarning: invalid escape sequence '\)'
  if re.search(item.replace('(', '\(').replace(')', '\)'), text):
/usr/bin/glade2script-python3:4424: SyntaxWarning: invalid escape sequence '\ '
  arg = '''%s %s''' % ( fichier_t.replace(' ', '\ '),