sorry, i've used wrong file... ( and i can't edit first post of topic)
and full command was:

python3 tweakvec.py --preset PAL60

But now, it's said:

DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use setuptools or check PEP 632 for potential alternatives
import distutils.util


and I'm not understanding....