Change values in dict of nested dicts using items in a list?

Question

How would you modify/create keys/values in a dict of nested dicts based on the values of a list, in which the last item of the list is a value for the dict, and the rest of

Answer 1

address_list = ["key1", "key1.1", "key1.2", "value"]

def set_value(dict_nested, address_list):
    cur = dict_nested
    for path_item in address_list[:-2]:
        try:
            cur = cur[path_item]
        except KeyError:
            cur = cur[path_item] = {}
    cur[address_list[-2]] = address_list[-1]