python | 保存log

import logging

def run():
    logging.info('hello world')


def setup_logger(fname=None, silent=False):
    if fname is None:
        logging.basicConfig(
            level=logging.INFO if not silent else logging.CRITICAL,
            format='%(name)-12s: %(levelname)-8s %(message)s',
            datefmt='%m-%d %H:%M',
            filemode='w'
        )
    else:
        logging.basicConfig(
            level=logging.INFO if not silent else logging.CRITICAL,
            format='%(asctime)s %(name)-12s %(levelname)-8s %(message)s',
            datefmt='%m-%d %H:%M',
            filename=fname,
            filemode='w'
        )
        console = logging.StreamHandler()
        console.setLevel(logging.INFO)
        formatter = logging.Formatter('%(name)-12s: %(levelname)-8s %(message)s')
        console.setFormatter(formatter)
        logging.getLogger('').addHandler(console)

if __name__ == '__main__':

    setup_logger('plan.log')
    run()