Background

This link https://stackoverflow.com/a/6290946/6484585 provides a solution to format logging timestamp with milliseconds, which requires overriding the method formatTime in logging.Formatter class.

With some modifications of the solutions in that link, I could produce a logging timestamp that is compatiable with ISO8601 format

import logging from datetime import datetime import pytz class MyFormatter(logging.Formatter): # override the converter in logging.Formatter converter = datetime.fromtimestamp # override formatTime in logging.Formatter def formatTime(self, record, datefmt=None, timezone="UTC"): return self.converter(record.created, tz=pytz.timezone(timezone)).isoformat() logger = logging.getLogger(__name__) logger.setLevel(level="DEBUG") console = logging.StreamHandler() logger.addHandler(console) formatter = MyFormatter(fmt="%(asctime)s - %(levelname)s - %(message)s") console.setFormatter(formatter) logger.debug("Testing") 

The console output is

2020-08-20T08:37:08.934591+00:00 - DEBUG - Testing 

Question

But my python project has multiple modules, and most of them require logging.

1. Do I need to repeatedly setup the logger for each module as shown in the above snippet?

2. Is there any solution that is as clean as simply using a logging config file and execute something like this logging.config.dictConfig(logging_conf) ?