I'm trying to test using a TimedRotatingFileHandler with a logging.config file, nothing that complicated but it should roll over every 10 seconds into a new log file.
However I'm getting the following
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'
The python is pretty simple it just sets up an infinite loop that continually logs
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')
And the config file
[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')
As you can see when is set to 'S' not 'W' like the error message seems to indicate.
Edit: As per the answer below the correct syntax in the logging config was
args=('./logs/log.out', 'S', 10, 5, None, False, False)
args=('./logs/log.out', 'when=\'S\'', 'interval=10', 'backupCount=5')
Doesn't look right. Try this
args=('./logs/log.out', when='S', interval=10, backupCount=5)
Or possibly this
args=('./logs/log.out','S',10,5)
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