python - 迭代字典中的列表

Question

我有一本看起来像这样的字典:

{
   "month": ["January", "February", "March"],
   "volume": [1,2,3],
   "target": [6,8,5]
}

我想循环每个键和值，以便我可以创建一个如下所示的列表:

["month: January, volume: 1, target: 6", "month: February, volume: 2, target: 8", "month: March, volume: 3, target: 5"]

如何逐个循环每个键值，直到到达最后一个列表的数组值的末尾？所有列表的每个键的长度都相同。

Answer 1

d = {
   "month": ["January", "February", "March"],
   "volume": [1,2,3],
   "target": [6,8,5]
}

keys = tuple(d)  # ('month', 'volume', 'target')
values = tuple(zip(*d.values()))  # (('January', 1, 6), ('February', 2, 8), ('March', 3, 5))

your_list = [
    ', '.join(
        f'{keys[i]}: {value[i]}' 
        for i in range(len(keys))  # range(3) in this case
    ) 
    for value in values
]

print(your_list)

输出:

['month: January, volume: 1, target: 6',
 'month: February, volume: 2, target: 8',
 'month: March, volume: 3, target: 5']