如何汇总不同行的分数并返回Python中的最大总分？

Question

我从CSV文件中设置的数据如下：

csv_reader = [['Ali', '34'], ['Ali', '20'], ['Ali', '12.34'], ['Ben', '100.98'], ['Jack', '12.34'], ['Jack', '14.34'], ['Jack', '33'], ['Orlaith', '55.66'], ['Orlaith', '2']]

我想总结一下每个人的得分，看看谁得分最高。所以我的期望如下：

Ben has the highest total score of 100.98

你们任何人都知道如何做到这一点？我尝试了一些代码，但它们只是没有用。

Answer 1

csv_reader = [['Ali', '34'], ['Ali', '20'], ['Ali', '12.34'], ['Ben', '100.98'], ['Jack', '12.34'], ['Jack', '14.34'], ['Jack', '33'], ['Orlaith', '55.66'], ['Orlaith', '2']]
cumulative = dict()
for person, score in csv_reader:
    cumulative[person] = cumulative.get(person, 0) + float(score)

max_score = max(cumulative.values())
max_score_persons = [person for person, score in cumulative.items() if score == max_score]

max_score_persons_string = ', '.join(max_score_persons)
print("{0} has the highest total score of {1}".format(max_score_persons_string, max_score))