python_logging.py

import os
import logging

# Use APP_ENV environment variable to determine app environment 
# Default to `production`

APP_ENV = os.getenv('APP_ENV', 'production')

logging.basicConfig(
        level=(logging.ERROR if APP_ENV is 'production' else logging.DEBUG )
        )

logging.info("This is just a message !")
logging.debug("This is a more verbose message !")
logging.warn("This is a warning !")
logging.error("This is an error !")