使用带有logging.config的TimedRotatingFileHandler日志记录

Question

我正在尝试使用带有logging.config文件的TimedRotatingFileHandler进行测试，没什么复杂的，但是应该每隔10秒滚动到一个新的日志文件中。

但是我得到了以下信息

Traceback (most recent call last):
  File "testLogging.py", line 6, in <module>
    logging.config.fileConfig(logDir+'logging.conf')
  File "C:\Python26\Lib\logging\config.py", line 84, in fileConfig
    handlers = _install_handlers(cp, formatters)
  File "C:\Python26\Lib\logging\config.py", line 159, in _install_handlers
    h = klass(*args)
  File "C:\Python26\Lib\logging\handlers.py", line 195, in __init__
    raise ValueError("You must specify a day for weekly rollover from 0 to 6 (0
is Monday): %s" % self.when)
ValueError: You must specify a day for weekly rollover from 0 to 6 (0 is Monday)
: WHEN='S'

python非常简单，它只是建立一个无限循环，不断地记录

import logging
import logging.config

logDir = "./logs/"

logging.config.fileConfig(logDir+'logging.conf')
logger = logging.getLogger('root')

while 1==1:        
    logger.info('THIS IS AN INFO MESSAGE')

和配置文件

[loggers]
keys=root

[logger_root]
level=INFO
handlers=timedRotatingFileHandler

[formatters]
keys=timedRotatingFormatter

[formatter_timedRotatingFormatter]
format=%(asctime)s %(name)-12s %(levelname)-8s %(message)s
datefmt=%m-%d %H:%M

[handlers]
keys=timedRotatingFileHandler

[handler_timedRotatingFileHandler]
class=handlers.TimedRotatingFileHandler
level=INFO
formatter=timedRotatingFormatter
args=('./logs/log.out', 'when=\'S\'', 'interval=10', 'backupCount=5')

如您所见，when被设置为'S'而不是'W'，就像错误消息显示的那样。

编辑：根据下面的回答，日志配置中的正确语法是

args=('./logs/log.out', 'S', 10, 5, None, False, False)

Answer 1

args=('./logs/log.out', 'when=\'S\'', 'interval=10', 'backupCount=5')

看起来不对。试试这个

args=('./logs/log.out', when='S', interval=10, backupCount=5)

或者可能是这个

args=('./logs/log.out','S',10,5)