python记录配置并访问所有方法

Question

I have enabled logging to python code.

logging.basicConfig(level=logging.INFO, format='%(asctime)s %(levelname)s : %(message)s')


logging.info('Log this message')

However I am not able to use any of other logging methods. Other methods don't print anything.

logging.debug('This is to debug only')

Is this related to level=logging.INFO ? Which level should i set so it could work with all logging methods?

Thanks for help.

Answer 1

You should use level=logging.DEBUG to log everything.

But logging.error should print the error message even with level=logging.INFO

Answer 2

DEBUG Detailed information, typically of interest only when diagnosing problems.

INFO Confirmation that things are working as expected.

WARNING An indication that something unexpected happened, or indicative of some problem in the near future (eg 'disk space low'). The software is still working as expected.

ERROR Due to a more serious problem, the software has not been able to perform some function.

CRITICAL A serious error, indicating that the program itself may be unable to continue running.

The default level is WARNING, which means that only events of this level and above will be tracked, unless the logging package is configured to do otherwise.

when you set you level to info you must get info , warning , error and critical logs

If you want to log all of level set your level to logging.DEBUG

Answer 3

The python logging module have multiple level of configuration

• DEBUG
• INFO
• WARNING
• ERROR
• CRITICAL

This logs that will be shown are in the sorted order shown above depending on what level you choose. It will show the selected stage and any other stage "levelled above" the selected stage.

For example, if you choose INFO, the logs will show for all INFO/WARNING/ERROR logs except DEBUG.

This helps in the way that you can sort them by environment variables according to the environment you are currently in, such as you can set it to DEBUG when you are in Development mode, and then set it to WARNING when you are in Production mode.

You can read more about it in the link below

Python Logging Module

And finally, to give a concrete answer to your question. You should set it to DEBUG to see all the logs.

Hopefully this gives you a better idea on what the python logging module is for!

Cheers! Max

Answer 4

The whole point of logging.DEBUG level is so that your, or any code you use, can log debug messages - if you don't want debug messages set your level to something higher.

If you still want to print debug messages but want to suppress messages from some of the modules you're using, like the requests and urllib3 , set the level of their loggers to something higher than logging.DEBUG , eg:

logging.basicConfig(level=logging.DEBUG, format='%(asctime)s %(levelname)s : %(message)s')
logging.getLogger("requests").setLevel(logging.WARNING)
logging.getLogger("urllib3").setLevel(logging.WARNING)