Simple Python colored logging with crayons

colored_logger.py

import logging
import crayons


# Define logging colors here
LOGGING_STYLES = {
    'debug': {'color': 'white', 'bold': False},
    'info': {'color': 'green', 'bold': True},
    'warning': {'color': 'magenta', 'bold': True},
    'error': {'color': 'yellow', 'bold': True},
    'critical': {'color': 'red', 'bold': True},
    'exception': {'color': 'cyan', 'bold': False},
}


def colored_logger(logger):
    """Make logging colorful"""
    try:
        if logger.colored:
            return logger
    except AttributeError:
        def _colored_logging_func(logging_func, color, bold):
            def wrapper_logging_func(msg, *args, **kwargs):
                logging_func(getattr(crayons, color)(msg, bold=bold),
                             *args, **kwargs)
            return wrapper_logging_func

        for fname, style in LOGGING_STYLES.items():
            setattr(logger, fname,
                    _colored_logging_func(getattr(logger, fname),
                                          style['color'],
                                          bold=style['bold']))
        logger.colored = True
        return logger


# Usage example
logging.basicConfig(level=logging.DEBUG)
logger = logging.getLogger()
logger = colored_logger(logger)

logger.debug('debug with color %s', LOGGING_STYLES['debug']['color'])
logger.info('info with color %s', LOGGING_STYLES['info']['color'])
logger.warning('warning with color %s', LOGGING_STYLES['warning']['color'])
logger.error('error with color %s', LOGGING_STYLES['error']['color'])
logger.critical('critical with color %s', LOGGING_STYLES['critical']['color'])
try:
    raise Exception
except Exception:
    logger.exception('exception with color %s', LOGGING_STYLES['exception']['color'])

What you see: