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Description:

json5kit 0.4.0

json5kit
A Roundtrip parser and CST for JSON, JSONC and JSON5.
JSON5 is a superset of JSON, that allows trailing commas,
comments, unquoted and single-quoted object keys, and a lot more.
Currently supports parsing most JSON5 syntax, and converting it back to source.
Also supports single line // comments.
Installation
pip install json5kit

Usage
>>> source = """
... {
... items: [1, 2, 4], // change this to 3
... }
... """
>>> import json5kit
>>> tree = json5kit.parse(source)
>>> print(tree.to_source())

{
items: [1, 2, 4], // change this to 3
}

>>> print(tree.to_json())
{"items":[1,2,4]}

>>> # Let's replace the `4` with `3` now:
>>> class ReplaceFourWithThree(json5kit.Json5Transformer):
... def visit_Number(self, node):
... if node.value == 4:
... return node.replace(value=3)
... return node
...
>>> ReplaceFourWithThree().visit(tree)
>>> print(tree.to_source())

{
items: [1, 2, 3], // change this to 3
}
>>> print(tree.to_json())
{"items":[1,2,3]}

Development / Testing

Clone the project:
git clone https://github.com/tusharsadhwani/json5kit
cd json5kit

Setup a virtual environment:
virtualenv venv
. venv/bin/activate

Do an editable install of the project, that way you don't have to keep
reinstalling:
pip install -r requirements-dev.txt

Run tests:
pytest

Run type checking:
mypy .