通過鍵列表訪問嵌套字典項？ - Access nested dictionary items via a list of keys?

問題：

I have a complex dictionary structure which I would like to access via a list of keys to address the correct item.我有一個複雜的字典結構，我想通過鍵列表訪問它來尋址正確的項目。

dataDict = {
    "a":{
        "r": 1,
        "s": 2,
        "t": 3
        },
    "b":{
        "u": 1,
        "v": {
            "x": 1,
            "y": 2,
            "z": 3
        },
        "w": 3
        }
}    

maplist = ["a", "r"]

or或者

maplist = ["b", "v", "y"]

I have made the following code which works but I'm sure there is a better and more efficient way to do this if anyone has an idea.我已經制作了以下代碼，但如果有人有想法，我相信有更好、更有效的方法來做到這一點。

# Get a given data from a dictionary with position provided as a list
def getFromDict(dataDict, mapList):    
    for k in mapList: dataDict = dataDict[k]
    return dataDict

# Set a given data in a dictionary with position provided as a list
def setInDict(dataDict, mapList, value): 
    for k in mapList[:-1]: dataDict = dataDict[k]
    dataDict[mapList[-1]] = value

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解決方案：

參考一： https://en.stackoom.com/question/zeEs
參考二： https://stackoom.com/question/zeEs