Python3 Logging Tips

Official Document: Logging HOWTO

Official Document: Logging.config module

The level of the log is as follows, and the log is logged only if it is greater than or equal to the configured level.

# Default level is Warningnotset < DEBUG < INFO < WARNING < ERROR < CRITICAL

• The official module has more than 10 Handler (useful handlers), which exist in the logging and logging.handlers modules. Commonly used are:

Logging. streamhandler# output log to console using (sys.stderr) logging.filehandler# output log to disk file logging.handlers.rotatingfilehandler# circular log file

• Basic configuration and use (Logging.basicconfig)

Import logginglogging.basicconfig (level=logging.info,format= '% (message) s:% (asctime) s% (filename) s[line:% (Lineno) D]% (levelname) s ', datefmt= '%y-%m-%d%h:%m:%s ', filename= ' log.log ', filemode= ' a ') Logging.error (fullpath) # Logs will be logged to Log.log file

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Python3 Logging Tips