Python Logstash Formatter compatible with json codec format

logstash_formatter.py

import logging
import json


class LogstashFormatter(logging.Formatter):
    def __init__(self, fmt=None, datefmt='%Y-%m-%dT%H:%M:%SZ'):
        super(LogstashFormatter, self).__init__(fmt, datefmt)

    def format(self, record):
        obj = record.__dict__.copy()
        obj['@timestamp'] = self.formatTime(record, self.datefmt)
        obj['message'] = super(LogstashFormatter, self).format(record)
        obj.pop('msg')
        return json.dumps(obj)

My take on a LogstashFormatter for python. Use it like:

logger = logging.getLogger()
logger.setLevel(logging.DEBUG)
logger.propagate = False
logger.handlers = []
handler = logging.StreamHandler()
formatter = LogstashFormatter(fmt="%(levelname)s - %(asctime)s %(filename)s:%(lineno)d %(message)s")
handler.setFormatter(formatter)
logger.addHandler(handler)