python中的colorlog库使用详解

pip install colorlog

import colorlog

handler = colorlog.StreamHandler()
handler.setFormatter(colorlog.ColoredFormatter(
 '%(log_color)s%(levelname)s:%(name)s:%(message)s'))

logger = colorlog.getLogger('example')
logger.addHandler(handler)

from colorlog import ColoredFormatter

formatter = ColoredFormatter(
 "%(log_color)s%(levelname)-8s%(reset)s %(blue)s%(message)s",
 datefmt=None,
 reset=True,
 log_colors={
  'DEBUG': 'cyan',
  'INFO':  'green',
  'WARNING': 'yellow',
  'ERROR': 'red',
  'CRITICAL': 'red,bg_white',
 },
 secondary_log_colors={},
 style='%'
)

from colorlog import ColoredFormatter

formatter = ColoredFormatter(
 "%(log_color)s%(levelname)-8s%(reset)s %(message_log_color)s%(message)s",
 secondary_log_colors={
  'message': {
   'ERROR': 'red',
   'CRITICAL': 'red'
  }
 }
)

logging.config.dictConfig({
 'formatters': {
  'colored': {
   '()': 'colorlog.ColoredFormatter',
   'format': "%(log_color)s%(levelname)-8s%(reset)s %(blue)s%(message)s"
  }
 },

 ...
})

[loggers]
keys=root

[logger_root]
handlers=stream
level=DEBUG

[formatters]
keys=color

[formatter_color]
class=colorlog.ColoredFormatter
format=%(log_color)s%(levelname)s:%(name)s:%(message)s:test_config.ini
datefmt=%H:%M:%S

[handlers]
keys=stream

[handler_stream]
class=StreamHandler
formatter=color
args=()

import logging, colorlog
TRACE = 5
logging.addLevelName(TRACE, 'TRACE')
formatter = colorlog.ColoredFormatter(log_colors={'TRACE': 'yellow'})
handler = logging.StreamHandler()
handler.setFormatter(formatter)
logger = logging.getLogger('example')
logger.addHandler(handler)
logger.setLevel('TRACE')
logger.log(TRACE, 'a message using a custom level')