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  1. json = '''{
  2.     "a": {
  3.         "x":1,
  4.         "y":2
  5.     },
  6.     "b": {
  7.         "z":3,
  8.         "w":4
  9.     }
  10.     "c": [1, 2, 3]
  11. }'''
  12.  
  13. import re
  14. better_json = re.sub(r'^((\s*)".*?":)\s*([\[{])', r'\1\n\2\3', json, flags=re.MULTILINE)
  15. print(better_json)
Success #stdin #stdout 0.02s 28384KB
comments (?)
stdin 
Standard input is empty
stdout 
{
    "a":
    {
        "x":1,
        "y":2
    },
    "b":
    {
        "z":3,
        "w":4
    }
    "c":
    [1, 2, 3]
}
https://ideone.com/cfkJhe
language:
Python 3 (python  3.9.5)
created:
6 years ago
visibility:
public

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