Python-logging usage

1, Introduction of logging Package

Import logging

2, define a logging object

Logger = Logging.getlogger (' logger_name ') #给该对象分配一个对象名: Logger_name

3. Set the log level for the Logger object:

Logger.setlevel (logging. Debug) # Log level: CRITICAL > ERROR > WARNING > INFO > DEBUG > NOTSET

4, create a file handler, write the log to the file

FH = logging. Filehandler ('/xx/xx/xx_log.log ')

5, create the control end handle, for output to console

Ctl_h = logging. Streamhandler ()

6, define the output format of the handler

Formatter = logging. Formatter ('% (asctime) s-% (name) s-% (levelname) s-% (message) s ')

Fh.setformatter (Formatter)

Ctl_h.setformatter (Formatter)

7, add handler to Loger

Logger.addhandler (FH)

Logger.addhandler (Ctl_h)

Python-logging usage