如何重构json？

Question

所以我有这个 json，我想重组它，到目前为止它在一个数组中。现在我想根据供应商对其进行排序。 现在的结构是 键1 键2 关键3

键1 键2 关键3

{
  "id": "1335735520073232385",
  "created_at": "2020-12-07 05:28:59 IST",
  "username": "kristinaforest",
  "tweet": "@iamsandyhall It’s the look of surprise on her face and the vulnerability on his ????"
  "vendor": "null"
}
{
  "id": "1335735456223399937",
  "created_at": "2020-12-07 05:28:44 IST",
  "username": "openbugbounty",
  "tweet": "@lyrsense please notify your IT security team about a security vulnerability OBB-1583432 on your website  "
  "vendor": "openbugbounty"
}
{
  "id": "1335735446496817152",
  "created_at": "2020-12-07 05:28:41 IST",
  "username": "openbugbounty",
  "tweet": "@arstechnica please notify your IT security team about a security vulnerability OBB-1583440 on your website  "
  "vendor": "openbugbounty"
}
{
  "id": "1335735260957564929",
  "created_at": "2020-12-07 05:27:57 IST",
  "username": "tpwk_falls",
  "tweet": "2 years into a song of vulnerability - a catchy melody embedded with honest lyrics opening up about a difficult time. Thank u for sharing with us  @zaynmalik I’m so proud of how far you’ve come and continue to go. Forever supporting ur journey #2yearsofgoodyears   PROUD OF ZAYN "
  "vendor": "zayn malik"
}

如何将其重组为

[
  {
    "vendor": "openbugbounty",
    "tweets": [
        {
       "id": "1335735260957564929",
       "created_at": "2020-12-07 05:27:57 IST",
       "username": "tpwk_falls",
       "tweet": "2 years into a song of vulnerability - a catchy melody embedded with            
        honest lyrics opening up about a difficult time. Thank u for sharing with us    
        @zaynmalik I’m so proud of how far you’ve come and continue to go. Forever  
        supporting ur journey #2yearsofgoodyears   PROUD OF ZAYN"
        },
       {
       "id": "1335735260957564929",
       "created_at": "2020-12-07 05:27:57 IST",
       "username": "tpwk_falls",
       "tweet": "2 years into a song of vulnerability - a catchy melody embedded with            
        honest lyrics opening up about a difficult time. Thank u for sharing with us    
        @zaynmalik I’m so proud of how far you’ve come and continue to go. Forever  
        supporting ur journey #2yearsofgoodyears   PROUD OF ZAYN  "
        }
     ]
   },
 .....

Answer 1

你可以试试itertools.groupby。但是它有额外的开销来首先排序丢失的，因为如果一个列表像 [1,1,2,2,1,3,3] 那么groupby 将作为 [(1,1), (2,2 ), (1), (3,3)]，这就是为什么需要排序的原因，显然，你可以不用 groupby，但它使代码更简单，如果你不关心时间复杂度也可以使用。

from itertools import groupby

l = [{
  "id": "1335735520073232385",
  "created_at": "2020-12-07 05:28:59 IST",
  "username": "kristinaforest",
  "tweet": "@iamsandyhall It’s the look of surprise on her face and the vulnerability on his ?",
  "vendor": "null"
},
{
  "id": "1335735456223399937",
  "created_at": "2020-12-07 05:28:44 IST",
  "username": "openbugbounty",
  "tweet": "@lyrsense please notify your IT security team about a security vulnerability OBB-1583432 on your website  ",
  "vendor": "openbugbounty"
},
{
  "id": "1335735446496817152",
  "created_at": "2020-12-07 05:28:41 IST",
  "username": "openbugbounty",
  "tweet": "@arstechnica please notify your IT security team about a security vulnerability OBB-1583440 on your website  ",
  "vendor": "openbugbounty"
},
{
  "id": "1335735260957564929",
  "created_at": "2020-12-07 05:27:57 IST",
  "username": "tpwk_falls",
  "tweet": "2 years into a song of vulnerability - a catchy melody embedded with honest lyrics opening up about a difficult time. Thank u for sharing with us  @zaynmalik I’m so proud of how far you’ve come and continue to go. Forever supporting ur journey #2yearsofgoodyears   PROUD OF ZAYN ",
  "vendor": "zayn malik"
}]

sorted_l = sorted(l, key=lambda x: x['vendor'])
grouped = groupby(sorted_l, key=lambda x: x['vendor'])

output = []

for key, group in grouped:
    output.append({
        'vendor': key,
        'tweets': [{j:i[j] for j in i if j != 'vendor'} for i in group]
    })
    
print(output)

[{'vendor': 'null',
  'tweets': [{'id': '1335735520073232385',
    'created_at': '2020-12-07 05:28:59 IST',
    'username': 'kristinaforest',
    'tweet': '@iamsandyhall It’s the look of surprise on her face and the vulnerability on his ?'}]},
 {'vendor': 'openbugbounty',
  'tweets': [{'id': '1335735456223399937',
    'created_at': '2020-12-07 05:28:44 IST',
    'username': 'openbugbounty',
    'tweet': '@lyrsense please notify your IT security team about a security vulnerability OBB-1583432 on your website  '},
   {'id': '1335735446496817152',
    'created_at': '2020-12-07 05:28:41 IST',
    'username': 'openbugbounty',
    'tweet': '@arstechnica please notify your IT security team about a security vulnerability OBB-1583440 on your website  '}]},
 {'vendor': 'zayn malik',
  'tweets': [{'id': '1335735260957564929',
    'created_at': '2020-12-07 05:27:57 IST',
    'username': 'tpwk_falls',
    'tweet': '2 years into a song of vulnerability - a catchy melody embedded with honest lyrics opening up about a difficult time. Thank u for sharing with us  @zaynmalik I’m so proud of how far you’ve come and continue to go. Forever supporting ur journey #2yearsofgoodyears   PROUD OF ZAYN '}]}]

Answer 2

您可以通过集合 defaultdict 和通过您的 json 迭代来实现这一点

from collections import defaultdict

flat_json = [{
    "id": "1335735520073232385",
    "created_at": "2020-12-07 05:28:59 IST",
    "username": "kristinaforest",
    "tweet": "@iamsandyhall It’s the look of surprise on her face and the vulnerability on his ?",
    "vendor": "null"
},
{
    "id": "1335735456223399937",
    "created_at": "2020-12-07 05:28:44 IST",
    "username": "openbugbounty",
    "tweet": "@lyrsense please notify your IT security team about a security vulnerability OBB-1583432 on your website  ",
    "vendor": "openbugbounty"
},
{
    "id": "1335735446496817152",
    "created_at": "2020-12-07 05:28:41 IST",
    "username": "openbugbounty",
    "tweet": "@arstechnica please notify your IT security team about a security vulnerability OBB-1583440 on your website  ",
    "vendor": "openbugbounty"
},
{
    "id": "1335735260957564929",
    "created_at": "2020-12-07 05:27:57 IST",
    "username": "tpwk_falls",
    "tweet": "2 years into a song of vulnerability - a catchy melody embedded with honest lyrics opening up about a difficult time. Thank u for sharing with us  @zaynmalik I’m so proud of how far you’ve come and continue to go. Forever supporting ur journey #2yearsofgoodyears   PROUD OF ZAYN ",
    "vendor": "zayn malik"
}]

d = defaultdict(list)

for item in flat_json:
    vendor = item.pop('vendor')
    d[vendor].append(item)

result = [{'vendor': k, 'tweets': v} for k, v in d.items()]

Answer 3

import json

array = '{ "id": "1335735520073232385", "created_at": "2020-12-07 05:28:59 IST", "username": "kristinaforest",  "tweet": "@iamsandyhall It’s the look of surprise on her face and the vulnerability on his ?","vendor": "null"}'
data  = json.loads(array)
print(data['id'], data['created_at'])
[out]: 335735520073232385 2020-12-07 05:28:59 IST