[SOLVED] Can json.loads ignore trailing commas?

Can json.loads ignore trailing commas?

As mentioned in this StackOverflow question, you are not allowed to have any trailing commas in json. For example, this

{
    "key1": "value1",
    "key2": "value2"
}

is fine, but this

{
    "key1": "value1",
    "key2": "value2",
}

is invalid syntax.

For reasons mentioned in this other StackOverflow question, using a trailing comma is legal (and perhaps encouraged?) in Python code. I am working with both Python and JSON, so I would love to be able to be consistent across both types of files. Is there a way to have json.loads ignore trailing commas?

Solution

You can wrap python's json parser with jsoncomment

JSON Comment allows to parse JSON files or strings with:

Single and Multi line comments

Multi line data strings

Trailing commas in objects and arrays, after the last item

Example usage:

import json
from jsoncomment import JsonComment

with open(filename) as data_file:    
    parser = JsonComment(json)
    data = parser.load(data_file)