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这是一个创建于 4262 天前的主题，其中的信息可能已经有所发展或是发生改变。
$ python ~/logfile.py
WARNING:root:This is warning message
只在屏幕输出上面这句，指定的日志文件是空的
将 logger=logging.getLogger('hello') 改为 logger=logging.getLogger() 才能输出到日志文件，不太明白为什么会这样子？
#!/usr/bin/python2
# coding=utf8
import os
import sys
import logging
import logging.handlers
## 日志级别大小关系为：NOTSET < DEBUG < INFO < WARNING < ERROR < CRITICAL
log_file='myapp.log'
logger=logging.getLogger('hello') ##########
logger.setLevel(logging.NOTSET)
formatter=logging.Formatter('%(asctime)s %(levelname)s %(message)s')
file_handler=logging.handlers.RotatingFileHandler(log_file,maxBytes=1000,backupCount=5)
file_handler.setFormatter(formatter)
logger.addHandler(file_handler)
logging.debug('This is debug message')
logging.info('This is info message')
logging.warning('This is warning message')
WARNING:root:This is warning message
只在屏幕输出上面这句，指定的日志文件是空的
将 logger=logging.getLogger('hello') 改为 logger=logging.getLogger() 才能输出到日志文件，不太明白为什么会这样子？
#!/usr/bin/python2
# coding=utf8
import os
import sys
import logging
import logging.handlers
## 日志级别大小关系为：NOTSET < DEBUG < INFO < WARNING < ERROR < CRITICAL
log_file='myapp.log'
logger=logging.getLogger('hello') ##########
logger.setLevel(logging.NOTSET)
formatter=logging.Formatter('%(asctime)s %(levelname)s %(message)s')
file_handler=logging.handlers.RotatingFileHandler(log_file,maxBytes=1000,backupCount=5)
file_handler.setFormatter(formatter)
logger.addHandler(file_handler)
logging.debug('This is debug message')
logging.info('This is info message')
logging.warning('This is warning message')
 |
1
xuwenbao 2013-03-07 08:57:59 +08:00  1
logger.setLevel(logging.NOTSET) 修改为 logger.setLevel(logging.DEBUG)，NOTSET并不是最小的级别，而是代表继承“parent”。
logging.debug('This is debug message') logging.info('This is info message') logging.warning('This is warning message') 这三句改为 logger.debug('This is debug message') logger.info('This is info message') logger.warning('This is warning message') |
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