python创建多维字典方法

python不直接创建多维字典，需要逐层判断不存在创建，存在追加：

例如：

不能直接

dictname['key1']['key2']['key3']['key4']['key5'] = ['123', '456']

 

下面函数实现：

def createdict(tuplevals, val):
    tupnum = len(tuplevals)
    tempname = dictname = {}
    for index, tupleval in enumerate(tuplevals):
        if index == tupnum - 1:
            dictname[tupleval] = val
        else:
            if tupleval not in dictname.keys():
                dictname[tupleval] = {}
            else:
                dictname.update({tupleval: {}})
        dictname = dictname[tupleval]
    return  tempname

dictname = createdict(('key1', 'key2', 'key3', 'key4', 'key5'), ['123', '456'])
print(dictname['key1']['key2']['key3'])