如何读取日志文件?
How can I read log file?
我正在学习登录 python。但是,我无法在任何地方找到日志文件。下面是一个示例代码
import logging
logging.basicConfig(level=logging.DEBUG)
logging.basicConfig(filename='my_app.log', filemode='w', format='%(asctime)s - %(levelname)s - %(message)s')
logging.debug('This will get logged')
file = open('my_app.log', 'r')
很遗憾,结果是。
FileNotFoundError: [Errno 2] No such file or directory: 'my_app.log'
我很纳闷。怎么了?
感谢 Felix,我找到了解决方案。结合两个 logging.basicConfig
行有帮助。工作代码如下所示:
import logging
logging.basicConfig(filename='my_app.log',
filemode='w',
format='%(asctime)s - %(levelname)s - %(message)s',
level=logging.DEBUG)
logging.debug('This will get logged')
显然后面的 logging.basicConfig
命令将被忽略
您可以修改您的代码如下:
import logging
logging.basicConfig(filename="my_app.log",
filemode='a',
format='%(asctime)s,%(msecs)d %(name)s %(levelname)s %(message)s',
datefmt='%H:%M:%S',
level=logging.DEBUG)
logging.debug('This will get logged')
file = open('my_app.log', 'r')
问题似乎是您在 logging.basicConfig(filename='my_app.log', filemode='w', format='%(asctime)s - %(levelname)s - %(message)s')
之前设置了 logging.basicConfig(level=logging.DEBUG)
相反,您可以将它们组合为:
logging.basicConfig(filename="my_app.log",
filemode='a',
format='%(asctime)s,%(msecs)d %(name)s %(levelname)s %(message)s',
datefmt='%H:%M:%S',
level=logging.DEBUG)
我正在学习登录 python。但是,我无法在任何地方找到日志文件。下面是一个示例代码
import logging
logging.basicConfig(level=logging.DEBUG)
logging.basicConfig(filename='my_app.log', filemode='w', format='%(asctime)s - %(levelname)s - %(message)s')
logging.debug('This will get logged')
file = open('my_app.log', 'r')
很遗憾,结果是。
FileNotFoundError: [Errno 2] No such file or directory: 'my_app.log'
我很纳闷。怎么了?
感谢 Felix,我找到了解决方案。结合两个 logging.basicConfig
行有帮助。工作代码如下所示:
import logging
logging.basicConfig(filename='my_app.log',
filemode='w',
format='%(asctime)s - %(levelname)s - %(message)s',
level=logging.DEBUG)
logging.debug('This will get logged')
显然后面的 logging.basicConfig
命令将被忽略
您可以修改您的代码如下:
import logging
logging.basicConfig(filename="my_app.log",
filemode='a',
format='%(asctime)s,%(msecs)d %(name)s %(levelname)s %(message)s',
datefmt='%H:%M:%S',
level=logging.DEBUG)
logging.debug('This will get logged')
file = open('my_app.log', 'r')
问题似乎是您在 logging.basicConfig(filename='my_app.log', filemode='w', format='%(asctime)s - %(levelname)s - %(message)s')
之前设置了 logging.basicConfig(level=logging.DEBUG)
相反,您可以将它们组合为:
logging.basicConfig(filename="my_app.log",
filemode='a',
format='%(asctime)s,%(msecs)d %(name)s %(levelname)s %(message)s',
datefmt='%H:%M:%S',
level=logging.DEBUG)