JSON logs using Python `logging` library

gistfile1.txt

from datetime import datetime
from pathlib import Path
import json_log_formatter
import logging
import os

class CustomJSONFormatter(json_log_formatter.JSONFormatter):
    def json_record(self, message, extra, record):
        if extra:
            data = extra
            if message:
                data['message'] = message
        else:
            # Also support logger.info({'foo': 'bar'})
            data = eval(message)
        data['time'] = str(datetime.utcnow())

        if record.exc_info:
            data['exc_info'] = self.formatException(record.exc_info)
        return data

    def to_json(self, record):
        return self.json_lib.dumps(record, ensure_ascii=False)

def create_logger(dirpath):
    formatter = CustomJSONFormatter()
    fp = Path(dirpath) / 'json_log_formatter.json'
    if os.path.exists(fp):
        os.remove(fp)

    json_handler = logging.FileHandler(filename=fp, encoding='utf-8')
    json_handler.setFormatter(formatter)

    logger = logging.getLogger('logtests')
    logger.addHandler(json_handler)
    logger.setLevel(logging.INFO)

    return fp

def use_logger():
    logger = logging.getLogger('logtests')

    logger.info({'one': "This is a message", "2": "произошла ошибка", "another": "ಠ_ಠ"})
    logger.info("this is the message", extra={'yes': 'no'})

def main():
    use_logger()
    fp = create_logger(Path("logs"))
    use_logger()
    use_logger()

if __name__ == '__main__':
    main()