Newer versions of python now generate a SyntaxWarning (SyntaxError in the future [1]) for invalid escape sequences. Fix this, as there were invalid escape sequences in the regexes: "libcamera/utils/ipc/./extract-docs.py:13: SyntaxWarning: invalid escape sequence '\/'" [1] https://docs.python.org/3.12/library/re.html Reported-by: Nicolas Dufresne <nicolas@ndufresne.ca> Signed-off-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Tested-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>