Python colorlog 控制台带颜色输出

0、介绍

Python想要实现控制台的输出带颜色，可以使用logging+colorlog模块

1、字体颜色

import logging

import colorlog


def init_log():
    logger = logging.getLogger('ROOT')
    logger.setLevel(logging.DEBUG)
    stream_handler = logging.StreamHandler()
    stream_handler.setLevel(logging.DEBUG)
    fmt_string = '%(log_color)s[%(name)s][%(levelname)s]%(message)s'
    # black red green yellow blue purple cyan 和 white
    log_colors = {
        'DEBUG': 'white',
        'INFO': 'green',
        'WARNING': 'yellow',
        'ERROR': 'red',
        'CRITICAL': 'purple'
        }
    fmt = colorlog.ColoredFormatter(fmt_string, log_colors=log_colors)
    stream_handler.setFormatter(fmt)
    logger.addHandler(stream_handler)
    return logger


if __name__ == '__main__':
    log = init_log()
    log.debug('debug message')
    log.info('info message')
    log.warning('warning message')
    log.error('error message')
    log.critical('critical message')

 2、背景色

import logging

import colorlog


def init_log():
    logger = logging.getLogger('ROOT')
    logger.setLevel(logging.DEBUG)
    stream_handler = logging.StreamHandler()
    stream_handler.setLevel(logging.DEBUG)
    fmt_string = '%(log_color)s[%(name)s][%(levelname)s]%(message)s'
    # black red green yellow blue purple cyan 和 white
    log_colors = {
        'DEBUG': 'black,bg_white',
        'INFO': 'bg_green',
        'WARNING': 'bg_yellow',
        'ERROR': 'bg_red',
        'CRITICAL': 'bg_purple'
        }
    fmt = colorlog.ColoredFormatter(fmt_string, log_colors=log_colors)
    stream_handler.setFormatter(fmt)
    logger.addHandler(stream_handler)
    return logger


if __name__ == '__main__':
    log = init_log()
    log.debug('debug message')
    log.info('info message')
    log.warning('warning message')
    log.error('error message')
    log.critical('critical message')

 3、加粗

import logging

import colorlog


def init_log():
    logger = logging.getLogger('ROOT')
    logger.setLevel(logging.DEBUG)
    stream_handler = logging.StreamHandler()
    stream_handler.setLevel(logging.DEBUG)
    fmt_string = '%(log_color)s[%(name)s][%(levelname)s]%(message)s'
    # black red green yellow blue purple cyan 和 white
    log_colors = {
        'DEBUG': 'white,bold',
        'INFO': 'green,bold',
        'WARNING': 'yellow,bold',
        'ERROR': 'red,bold',
        'CRITICAL': 'purple,bold'
        }
    fmt = colorlog.ColoredFormatter(fmt_string, log_colors=log_colors)
    stream_handler.setFormatter(fmt)
    logger.addHandler(stream_handler)
    return logger


if __name__ == '__main__':
    log = init_log()
    log.debug('debug message')
    log.info('info message')
    log.warning('warning message')
    log.error('error message')
    log.critical('critical message')

 参考 https://bearfly1990.github.io/2018/04/25/colorlog/