A script to reproduce using [this](https://github.com/BelfrySCAD/BOSL2/commit/5b37739ab1666ad3c0a919bd5993f3854fd16cb7) version of BOSL2. fill.py ```python #!/usr/bin/python3 from solid import * b2=include('BOSL2/std.scad') ``` ```sh [andromodon@spectre fill]$ ./fill.py /usr/local/lib/python3.12/dist-packages/solid/py_scadparser/scad_tokens.py:55: SyntaxWarning: invalid escape sequence '\&' t_AND = "\&\&" /usr/local/lib/python3.12/dist-packages/solid/py_scadparser/scad_tokens.py:56: SyntaxWarning: invalid escape sequence '\|' t_OR = "\|\|" ``` The fix is to modify scad_tokens.py and change these lines to this: ``` t_AND = r"\&\&" t_OR = r"\|\|" ```