Python 怎么遍历字典转换格式？

Question

把下面这个字典格式，进行转换成新的字典格式，请教各位大佬

arr={'index': ['2022-07-14 18:00:00','2022-07-14 18:10:00','2022-07-14 18:20:00'],
    'columns': ['一班', '二班', '三班'],
    'data': [[0.0, 102.0, 44.0, 76.0, 0.0, 0.0, 0.0, 1.0],
        [2.0, 242.0, 86.0, 110.0, 0.0, 5.0, 2.0, 1.0],
        [2.0, 504.0, 150.0, 582.0, 0.0, 5.0, 2.0, 1.0]]}

新的格式：

newArr = [
        {
          cdate: "2022-07-14 18:00:00",
          cname: "一班, 二班, 三班"
          cut: "0.0, 102.0, 44.0, 76.0, 0.0, 0.0, 0.0, 1.0"
        },
        {
          cdate: "2022-07-14 18:10:00",
          cname:"一班, 二班, 三班",
          cut: "2.0, 242.0, 86.0, 110.0, 0.0, 5.0, 2.0, 1.0"
        },
        {
          cdate: "2022-07-14 18:20:00",
          cname:"一班, 二班, 三班",
          cut: "2.0, 504.0, 150.0, 582.0, 0.0, 5.0, 2.0, 1.0]"
        }]

Answer 1

[{"cdata": arr["index"][i], "cname": arr["columns"][i], "cut": arr["data"][i]} for i in range(0, len(arr["index"]))]