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QuL1ux
Asked:2023-01-06 00:21:52 +0000 UTC2023-01-06 00:21:52 +0000 UTC

如何按元素对json数组进行排序？

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如何在python中对json数组进行排序？

在这种情况下，我正在尝试实现一个领导者命令( discord.py)，该命令需要按级别int 元素对“用户” json 数组进行排序。

大批：

{"947336492487942174": {"experience": 6, "level": 1, "need_xp": 10}, "702338551806951466": {"experience": 7, "level": 3, "need_xp": 10}, "853231575332552704": {"experience": 8, "level": 6, "need_xp": 10}}

代码本身：

@client.command(aliases=['l', 'лидеры'])
async def leaders(ctx):
    with open('users.json', 'r') as f:
      users = json.load(f)
    print(users)
    users = sorted(users, key=lambda x: int(x['level']))
    embed = discord.Embed(title='Лидеры 🏆', colour=discord.Colour.from_rgb(randint(5,255), randint(5,255), randint(5,255)))
    for user in users:
      level = int(users[f'{user.id}']['level'])
      embed.add_field(name=user, value=f'Уровень: **{level}**')
    await ctx.send(embed=embed)

错误：

TypeError: string indices must be integers
python

1 个回答

  1. Best Answer

    问题是你有一个嵌套字典，你写的排序没有考虑到这一点。

    要解决它，获取内部字典然后按字段值排序就足够了level：

    users = {"947336492487942174": {"experience": 6, "level": 3, "need_xp": 10},
         "702338551806951466": {"experience": 7, "level": 1, "need_xp": 10},
         "853231534433255270": {"experience": 8, "level": 4, "need_xp": 10}}

print(sorted(users.items(), key=lambda x: x[1]['level']))

    结论：

    [('702338551806951466', {'experience': 7, 'level': 1, 'need_xp': 10}), 
 ('947336492487942174', {'experience': 6, 'level': 3, 'need_xp': 10}), 
 ('853231534433255270', {'experience': 8, 'level': 4, 'need_xp': 10})]
    • 1

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