a directory path problem, "from validation.validate import Validator" => "from validate import Validator" https://github.com/mlindauer/OASC_starterkit/blob/3ec656ce8793ca92db8cd3d67008418701ce0ea1/validation/validate_cli.py#L10
a directory path problem,
"from validation.validate import Validator" => "from validate import Validator"
OASC_starterkit/validation/validate_cli.py
Line 10 in 3ec656c