擅长使用iter

1. def populate_ranks(votes, ranks):
2.     names = list(votes.keys())
3.     names.sort(key=votes.get, reverse=True)
4.     for i, name in enumerate(names, 1):
5.         ranks[name] = i
8. def get_winner(ranks):
9.     return next(iter(ranks))
12. if __name__ == '__main__':
13.     ranks = {}
14.     votes = {
15.         'other': 1281,
16.         'polar bear': 587,
17.         'fox': 863,
18.     }
19.     populate_ranks(votes, ranks)
20.     print(ranks)
21.     winner = get_winner(ranks)
22.     print(winner)

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