元组列表中字母的平均数 [英] Average of numbers by letter in a list of tuples

问题描述

我有一个名为data的元组列表:

I have a list of tuples named data:

data = [('A', 2), 
        ('B', 2), ('B', 4), ('B', 6), ('B', 8), ('B', 6), ('B', 4), ('B', 3),
        ('C', 10), ('C', 10), ('C', 10),
        ('D', 12),
        ('E', 12),
        ('F', 10), ('F', 8), ('F', 6)]
average = []

我想要每个字母的平均值:

I would like an average of the values for each same letter:

预期输出:

average = [('A', 2), ('B', 5), ('C', 10), ('D', 12), ('E', 12), ('F', 8)]

推荐答案

尝试使用 结果

[('A', 2.0),
 ('B', 4.714285714285714),
 ('C', 10.0),
 ('D', 12.0),
 ('E', 12.0),
 ('F', 8.0)]

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