Convert Python String to JSON

pythonDictParser.js

// Thanks ChatGPT!
// Getting back a Python dictionary in JavaScript, and need it to be JSON
function pythonDictToJson(pythonDictString) {
    // Regular expression to match and replace Python literals
    const regex = /('(\\'|[^'])*')|None|True|False/g;

    // Replacer function to handle each match
    const replacer = (match) => {
        if (match === 'None') {
            return 'null';
        } else if (match === 'True') {
            return 'true';
        } else if (match === 'False') {
            return 'false';
        } else {
            // Return string matches unaltered
            return match;
        }
    };

    // Replace Python literals with JSON equivalents
    let jsonString = pythonDictString.replace(regex, replacer);

    // Replace single quotes with double quotes outside of strings
    jsonString = jsonString.replace(/([^\\])'/g, '$1"');

    // Parse the string to a JSON object
    let jsonObject;
    try {
        jsonObject = JSON.parse(jsonString);
    } catch (error) {
        console.error("Error parsing JSON string:", error);
        return null;
    }

    return jsonObject;
}

// Example usage
let pythonDictString = "{'key1': 'value1', 'key2': 2, 'key3': None, 'key4': True, 'key5': False, 'key6': 'Example: True, False, None'}";
let jsonObject = pythonDictToJson(pythonDictString);

console.log(jsonObject);