Example of configuring the Python logging module with a custom format

configure_logging.py

import logging

def configure_logging(level=logging.DEBUG):
    """Configure the logging module.
    """
    logging.basicConfig(
        format="%(asctime)s.%(msecs)03d %(levelname)-7s %(message)s",
        datefmt="%Y-%m-%d %H:%M:%S",
        level=level)

If using this in a Jupyter notebook, add stream=sys.stderr to the basicConfig arguments to get log messages to appear in the notebook.