How to remove return to line in a list in a JSON file?

VictordeLeusse
September 26, 2024
144 views
0 votes
2 Answers

In Python, I would like to get all elements from my lists BIRD_answer and my_answer in a single row:

{
    "BIRD_answer":[
        [
            0.043478260869565216
        ],
        [
            0.07042253521126761
        ],
        [
            0.11363636363636363
        ]
    ],
    "my_answer":[
        [
            "MillenniumHighAlternative",
            0.043478260869565216
        ],
        [
            "RanchodelMarHigh(Continuation)",
            0.07042253521126761
        ],
        [
            "DelAmigoHigh(Continuation)",
            0.11363636363636363
        ]
    ]
}

To give me a format like this :

    "BIRD_answer":[[0.043478260869565216],[0.07042253521126761],[0.11363636363636363]],
    "my_answer":[["MillenniumHighAlternative",0.043478260869565216],["RanchodelMarHigh(Continuation)",0.07042253521126761],["DelAmigoHigh(Continuation)",0.11363636363636363]]
}

I have already tried to use jsbeautifier but doesn’t work.

Tags: json python

Answers

You can do it using json.dumps

import json

data = {
    "BIRD_answer": [
        [0.043478260869565216],
        [0.07042253521126761],
        [0.11363636363636363]
    ],
    "my_answer": [
        ["MillenniumHighAlternative", 0.043478260869565216],
        ["RanchodelMarHigh(Continuation)", 0.07042253521126761],
        ["DelAmigoHigh(Continuation)", 0.11363636363636363]
    ]
}

formatted_lines = []

for key, value in data.items():
    compact_value = json.dumps({key: value}, separators=(',', ':'))
    formatted_lines.append(f"    {compact_value[1:-1]}")

formatted_json = "{n" + ",n".join(formatted_lines) + "n}"

print(formatted_json)

Result :

{
    "BIRD_answer":[[0.043478260869565216],[0.07042253521126761],[0.11363636363636363]],
    "my_answer":[["MillenniumHighAlternative",0.043478260869565216],["RanchodelMarHigh(Continuation)",0.07042253521126761],["DelAmigoHigh(Continuation)",0.11363636363636363]]
}

Hope it helps you!

You will need to devise a custom formatter:

#!/usr/bin/env python3

import json

json_data = '''
{
  "BIRD_answer": [
    [0.043478260869565216],
    [0.07042253521126761],
    [0.11363636363636363]
  ],
  "my_answer": [
    ["MillenniumHighAlternative", 0.043478260869565216],
    ["RanchodelMarHigh(Continuation)", 0.07042253521126761],
    ["DelAmigoHigh(Continuation)", 0.11363636363636363]
  ]
}
'''

def format_json(json_str: str, indent_char: str = ' ', indent_size: int = 4) -> str:
    parsed_data = json.loads(json_str)
    indent = indent_char * indent_size
    formatted_json = "{n"
    for key, value in parsed_data.items():
        minified_value = json.dumps(value, separators=(',', ':'))
        formatted_json += f'{indent}"{key}": {minified_value},n'
    return formatted_json.rstrip(',n') + 'n}'

if __name__ == '__main__':
    print(format_json(json_data))

This will result in:

{
    "BIRD_answer": [[0.043478260869565216],[0.07042253521126761],[0.11363636363636363]],
    "my_answer": [["MillenniumHighAlternative",0.043478260869565216],["RanchodelMarHigh(Continuation)",0.07042253521126761],["DelAmigoHigh(Continuation)",0.11363636363636363]]
}

Here is a more compact function:

def format_json(json_str: str, indent_char: str = ' ', indent_size: int = 4) -> str:
    parsed_data, indent = json.loads(json_str), indent_char * indent_size
    
    return "{n" + "n".join(
        f'{indent}"{key}": {json.dumps(value, separators=(",", ":"))},'
        for key, value in parsed_data.items()
    ).rstrip(',') + "n}"

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