taipeipy_scores.py

"""
% python taipeipy_scores.py
{2: 9, 3: 4, 4: 6, 5: 8, 6: 3}
[2, 5, 4, 3, 6]
"""
import pprint

vote_lists = ([5, 2, 4, 6, 3],
              [4, 5, 2, 3, 6],
              [2, 3, 6, 5, 4])

scores = {}
for vote_list in vote_lists:
    for i, no in enumerate(reversed(vote_list)):
        scores[no] = scores.setdefault(no, 0) + i

pprint.pprint(scores)

rating = list(reversed(sorted(scores, key=scores.__getitem__)))
pprint.pprint(rating)