Packaging of logging logs

1、looging Four major organizations of

 Loggers  Logger       entrance 
 processor  Handler      practitioners  , Determine the output of logs at different ends , Log files . Console 
 format  Formatter    Log entries 
 filter  Filter       Enter the log of interest 

2、 Encapsulation of log collector , And steps

The creation process of console log and file log

First step ： Create a logger

logger=logging.getLogger("logger")

The second step ： Set the output level of the log

logger.setLevel(logging.INFO)

The third step ： Set the output of log format

%(asctime)s   Current time in string form . The default format is  “2003-07-08 16:49:45,896”. After the comma is milliseconds 
%(levelname)s   Log level in text form 
%(message)s   User output message 
'''
formatter = logging.Formatter("%(asctime)s %(levelname)s %(message)s","%Y/%m/%d-%H:%M:%S")

The third step ： Add the controller to the log object

#  Create console processor   --  Output console 
SH=logging.StreamHandler()
# Console 
logger.addHandler(SH)
SH.setFormatter(formatter)

#  Create file processor    The output file 
# The file output is one step more than the console , create a file 
FH=logging.FileHandler(f'{time.strftime("%Y-%m-%d %H-%M-%S", time.localtime())}_log.txt')
logger.addHandler(FH)
FH.setFormatter(formatter)

The overall code

import logging
import time


#  Create a logger 
logger=logging.getLogger("logger")



#  Log output and current level  , Global role 
logger.setLevel(logging.INFO)

#  Action console , The level of logging 
# SH.setLevel()


# format 
#  What does the log contain    Time , file , The level of logging ,  What did you do 

# %(asctime)s   Current time in string form . The default format is  “2003-07-08 16:49:45,896”. After the comma is milliseconds 
# %(levelname)s   Log level in text form 
# %(message)s   User output message 

formatter = logging.Formatter("%(asctime)s %(levelname)s %(message)s","%Y/%m/%d-%H:%M:%S")

#  Create console processor   --  Output console 
SH=logging.StreamHandler()
# Console 
logger.addHandler(SH)
SH.setFormatter(formatter)


#  Create file processor    The output file 
# The file output is one step more than the console , create a file 
FH=logging.FileHandler(f'{time.strftime("%Y-%m-%d %H-%M-%S", time.localtime())}_log.txt')
logger.addHandler(FH)
FH.setFormatter(formatter)

try:
    score=int(input(" Please enter your score ："))
    if score>60:
        print(" You passed ")
    else:
        print(" unfortunately , You failed ")
    logger.info(" The query is successful ！！！")
except Exception as error:
    logger.error(" Wrong information ："+str(error))


 Use 
logger.info(" End of query ！！！！！！！！！")

simplify

        self.logger=logging.getLogger(filename)

        #  Console log 
        self.console_handler=logging.StreamHandler()

        # self.logger.setLevel(level)

        # Format the log 
        self.console_handler.setFormatter(logging.Formatter("[%(asctime)s]%(filename)s->%(funcName)s line:%(lineno)d [%(levelname)s] %(message)s"))

        # Add the log to the log object 
        self.logger.addHandler(self.console_handler)