filelogger.py

#!/usr/bin/env python

import logging

logger = logging.getLogger()

def main():
    logger.info('hello world!')

if __name__ == '__main__':
    import sys
    filename = sys.argv[-1]

    handler = logging.FileHandler(filename)
    handler.setLevel(logging.INFO)

    formatter = logging.Formatter("%(asctime)s - %(name)s - %(levelname)s - %(message)s")
    handler.setFormatter(formatter)

    logger.addHandler(handler)
    logger.setLevel(logging.INFO)

    main()