colorizer.py

import logging
import sys

from logutils.dictconfig import dictConfig

LOGGING = {
    'version': 1,
    'disable_existing_loggers': True,
    'formatters': {
        'standard': {
            'format': "[%(asctime)s] %(levelname)s [%(name)s.%(funcName)s:%(lineno)d] %(message)s",
            'datefmt': "%d/%b/%Y %H:%M:%S"
        },
    },
    'handlers': {
        'console': {
            'level': 'DEBUG',
            '()': 'ext://custom_colorize.custom_colorizer',
            'formatter': 'standard',
            'level_map': {
                logging.INFO: (None, 'cyan', True),
            }
        },
    },
    'loggers': {
        'django': {
            'handlers': ['console'],
            'propagate': True,
            'level': 'INFO',
        }
    }
}

def main():
    logging.getLogger('django').info('This should appear in BRIGHT CYAN in a terminal')

if __name__ == '__main__':
    dictConfig(LOGGING)
    main()

custom_colorize.py

import logging
import sys

from logutils.colorize import ColorizingStreamHandler

def custom_colorizer(level_map):
    result = ColorizingStreamHandler(sys.stdout)
    lm = dict(result.level_map)  # makes a copy of the dict in the class
    lm.update(level_map)
    result.level_map = lm   # set dict into instance - class dict unchanged
    return result