Python 日志记录的级别和格式。StreamHandler()在运行子流程后更改
我有一些在无限循环中运行的Python代码,其中我做了一些日志记录,并根据特定条件,使用Python 日志记录的级别和格式。StreamHandler()在运行子流程后更改,python,logging,Python,Logging,我有一些在无限循环中运行的Python代码,其中我做了一些日志记录,并根据特定条件,使用子流程模块运行一个shell命令,然后再做更多日志记录。大致如下: #!/usr/bin/env python import logging import subprocess import time TIME_FORMAT = '%a %b %-d %Y %-I:%M:%S %p' logger = logging.getLogger(__name__)
子流程
模块运行一个shell命令,然后再做更多日志记录。大致如下:
#!/usr/bin/env python
import logging
import subprocess
import time
TIME_FORMAT = '%a %b %-d %Y %-I:%M:%S %p'
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
logformat = '%(asctime)s [%(levelname)s] %(name)s: %(message)s'
formatter = logging.Formatter(fmt=logformat, datefmt=TIME_FORMAT)
file_handler = logging.FileHandler('/path/to/logfile.log')
file_handler.setLevel(logging.DEBUG)
file_handler.setFormatter(formatter)
logger.addHandler(file_handler)
console = logging.StreamHandler()
console.setLevel(logging.INFO)
console.setFormatter(formatter)
logger.addHandler(console)
def main():
if some_condition:
return_code = subprocess.call(['./some_other_process'])
if return_code == 0:
logger.info('Just ran some_other_process')
else:
logger.debug('Sleeping for 60 seconds.')
time.sleep(60)
if __name__ == '__main__':
main()
Fri Aug 22 2014 3:35:11 PM [DEBUG] __main__: Sleeping for 60 seconds.
当我第一次开始执行这个过程时,我注意到输出是正确的;i、 e.日志行应如下所示:
#!/usr/bin/env python
import logging
import subprocess
import time
TIME_FORMAT = '%a %b %-d %Y %-I:%M:%S %p'
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
logformat = '%(asctime)s [%(levelname)s] %(name)s: %(message)s'
formatter = logging.Formatter(fmt=logformat, datefmt=TIME_FORMAT)
file_handler = logging.FileHandler('/path/to/logfile.log')
file_handler.setLevel(logging.DEBUG)
file_handler.setFormatter(formatter)
logger.addHandler(file_handler)
console = logging.StreamHandler()
console.setLevel(logging.INFO)
console.setFormatter(formatter)
logger.addHandler(console)
def main():
if some_condition:
return_code = subprocess.call(['./some_other_process'])
if return_code == 0:
logger.info('Just ran some_other_process')
else:
logger.debug('Sleeping for 60 seconds.')
time.sleep(60)
if __name__ == '__main__':
main()
Fri Aug 22 2014 3:35:11 PM [DEBUG] __main__: Sleeping for 60 seconds.
但是,一旦执行了子流程.call
,我注意到所有日志行(仅控制台中的日志行;日志文件的输出正常)都恢复为默认值:
DEBUG:__main__:Sleeping for 60 seconds.
更不用说我不应该在控制台中看到调试级别的日志记录,只有info和up
为什么会这样 我不确定为什么会发生这种情况,但我用这个程序解决了一个类似的问题。 显然,getLogger和StreamHandler例程创建了两个不同的StreamHandler 请尝试使用以下代码:
#!/usr/bin/env python
import logging
import subprocess
import time
TIME_FORMAT = '%a %b %-d %Y %-I:%M:%S %p'
logformat = '%(asctime)s [%(levelname)s] %(name)s: %(message)s'
formatter = logging.Formatter(fmt=logformat, datefmt=TIME_FORMAT)
file_handler = logging.FileHandler('/path/to/logfile.log')
file_handler.setLevel(logging.DEBUG)
file_handler.setFormatter(formatter)
logging.getLogger('').addHandler(file_handler)
console = logging.StreamHandler()
console.setLevel(logging.INFO)
console.setFormatter(formatter)
logging.getLogger('').addHandler(console)
def main():
if some_condition:
return_code = subprocess.call(['./some_other_process'])
if return_code == 0:
logger.info('Just ran some_other_process')
else:
logger.debug('Sleeping for 60 seconds.')
time.sleep(60)
if __name__ == '__main__':
main()
您能否修改您发布的代码,使其显示您描述的不需要的行为?