python - 多个json字典python

Question

我有一个包含多个 json 字典的 json 文件: 格式如下

{"x":"1", "y":"2", "z": "3"}{"x": "2","y":"3", "z":"4"}{"x":"3", "y":"4", "z":"5"}

如何将其转换为一种 json 字典格式，如下所示:

{"items":[{"x":"1", "y":"2", "z": "3"},{"x": "2","y":"3", "z":"4"},{"x":"3", "y":"4", "z":"5"}]}

Answer 1

大部分已在此处回答:Importing wrongly concatenated JSONs in python

这向您展示了如何使用 json.JSONDecoder 方法 raw_decode() 从它们的串联列表(这不是有效的 JSON)中提取每个 JSON 元素。剩下的就是连接字符串 '{"items":[', element1, ",", element2, ... "]" 或者，将它们累积为一个列表，用单项 dict 包装它，如果需要，将该 json 转储为带有 json 的字符串。转储

确定扩展

import json
d = json.JSONDecoder()

# get your concatenated json into x, for example maybe
x = open('myfile.json','r').read()

jlist=[]
while True:
   try:
      j,n = d.raw_decode(x) 
      jlist.append(j)
   except ValueError: 
      break
   x=x[n:]

# my original thought was
result = '{"items":[' + 
     ','.join( [ str(s) for s in jlist] ) +
     ']'

# but this is neater
result = json.dumps( { "items":jlist })

# and of course if you want it for programmatic use, just
result_as_json = dict( items=jlist )