ValueError: could not convert string to float:

[fpgasdr]

Hi just generate some gcode with cura 4.7 in ubuntu with setting proposed in instrucctions but still get the next error when running from command line the python script "python addGradientInfillCLI.py -i FQQS_foilmast.gcode"

File "addGradientInfill.py", line 125, in getXY
return Point2D(float(elementX), float(elementY))
ValueError: could not convert string to float:

seems the parsing is reading some string instead of numbers but don't know why it could be.

Any ideas?.

python used was python 3.7 but tried with python 2.7 but get another error:

File "addGradientInfillCLI.py", line 35
def arg_to_infill_type(arg: str) -> InfillType:
^
SyntaxError: invalid syntax