Score file

score.py

#!/usr/bin/env python3
import yaml

def note(got, total):
    return round(got / total * 5. + 1., 1)

def get_points(u):
    got = 0
    total = 0
    for k, v in u.items():
        if isinstance(v, dict):
            _got, _total = get_points(v)
            got += _got
            total += _total
        elif isinstance(v, list) and k == '$points':
            _got, _total = v
            got += float(_got)
            total += float(_total) if float(_total) > 0 else 0
        elif isinstance(v, list) and k == '$bonus':
            _got, _total = v
            got += float(_got)
    return (got, total)

print(note(*get_points(yaml.load(open('criteria.yml'), Loader=yaml.FullLoader))))