列表列表到字典

Question

我有一个列表列表：[['1','Kate','Green','North'],['2','John','Blue','North'],['3','Jane','Red','NorthSouth'],['4','Lewis','Blue','East']]

我想制作字典：{'1': ['Kate','Green','North'], '2':['John','Blue','North'], '3':['Jane','Red','NorthSouth'], 4:['Lewis','Blue', 'East']}

目前我的代码是：

def li2dict(li):
    final_dict = {}
    for i in range(len(li)):
        for j in range(len(li[j])):
            roster_dict[li[j][0]] = li[j][k]
    print(final_dict)

然而，我得到的只是：{'1':'North', '2':'North', '3':'NorthSouth', '4':'East'} 谁能帮我解决这个逻辑错误？

编辑 1： 仅供参考，我不允许导入任何库。

编辑2：我也试过：

roster_dict[contents[j][0]].append(contents[j][k])

但我得到：

File "test.py", line 54, in <module>
    main()
File "test.py", line 51, in main
    li2dict([listinfo])
File "test.py", line 44, in li2dict
    roster_dict[contents[j][0]].append(contents[j][k])
KeyError: '1'

Answer 1

尝试使用听写理解：

d = {i[0]: i[1:] for i in li}

print(d)                                                                                                                                 
{'1': ['Kate', 'Green', 'North'], '2': ['John', 'Blue', 'North'], '3': ['Jane', 'Red', 'NorthSouth'], '4': ['Lewis', 'Blue', 'East']}

Answer 2

看起来您的问题已经得到解答，但这里有另一个与您的格式更相似的答案，可以帮助您更好地理解其中的逻辑

old_list = [['1','Kate','Green','North'],['2','John','Blue','North'],['3','Jane','Red','NorthSouth'],['4','Lewis','Blue','East']]


def dict_conversion(list_variable):
    dict = {}
    for list in list_variable:
        index_position = list[0]
        list_content = list[1:]
        dict[index_position] = list_content
    print(dict)
    return dict


dict_conversion(old_list)

列表列表到字典

List of List to Dictionary

python

dictionary

list

python-3.x

dictionary-comprehension