Easy logging in python – salman faris

Don’t print. Log. The easiest way to log in python has to be to add this ~~junk~~ chunk at the top of your script.

import logging

logging.basicConfig(
    level=logging.INFO,  # Set the logging level (DEBUG, INFO, WARNING, ERROR, CRITICAL)
    format="%(asctime)s - %(levelname)s - %(message)s",  # Define the log format
    handlers=[
        logging.FileHandler("logfile.txt"),  # Log to a file
        logging.StreamHandler(),  # Log to the console
    ],
)

No package installs, everything straight out of the box. Then, you can just use

logging.info(...)

to log. The beautiful thing about this approach is that it logs to a specified file and logs to the console. Want even better coverage? Write a parallel cron job that pushes the updated log file to github in a scheduled period.

The days of training neural networks overnight and waking up to a dead computer with lost console logs are gone – yes, this was me in 2021… pathetic I know.