python - Can json.loads ignore trailing commas?

Question

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?

Answer 1

Strip the commas before you pass the value in.

import re

def clean_json(string):
    string = re.sub(",[ 
]+}", "}", string)
    string = re.sub(",[ 
]+]", "]", string)

    return string