Logging configuration with console and file handlers

main.py

import logging
import logging.config

import settings

def setup_logging():
    logging.config.dictConfig(settings.LOGGING_CONFIG)
    log = logging.getLogger("sys.excepthook")

    def excepthook(exc_type, exc_value, exc_traceback):
        if issubclass(exc_type, KeyboardInterrupt):
            sys.__excepthook__(exc_type, exc_value, exc_traceback)
            return

        log.critical("Uncaught exception.", exc_info=(exc_type, exc_value, exc_traceback))

    sys.excepthook = excepthook


def main():
    setup_logging()
    
    log = logging.getLogger(__name__)
    log.info("Hello, world!")


if __name__ == "__main__":
    main()

settings.py

import os

LOGGING_CONFIG = {
    "disable_existing_loggers": False,
    "version": 1,
    "formatters": {
        "short": {
            "format": "%(asctime)s %(levelname)s %(name)s: %(message)s"
        },
    },
    "handlers": {
        "console": {
            "level": "INFO",
            "formatter": "short",
            "class": "logging.StreamHandler",
        },
        "file-debug": {
            "level": "DEBUG",
            "formatter": "short",
            "class": "logging.handlers.RotatingFileHandler",
            "filename": os.path.join(BASE_DIR, "logs", "debug.log"),
            "maxBytes": 5*1024*1024,
            "backupCount": 10,
            "mode": "a",
            "encoding": "utf-8",
        },
        "file-error": {
            "level": "ERROR",
            "formatter": "short",
            "class": "logging.handlers.RotatingFileHandler",
            "filename": os.path.join(BASE_DIR, "logs", "error.log"),
            "maxBytes": 5*1024*1024,
            "backupCount": 10,
            "mode": "a",
            "encoding": "utf-8",
        },
    },
    "loggers": {
        "": {
            "handlers": ["console", "file-debug", "file-error"],
            "level": "DEBUG",
        },
    },
}