python logging with variables

import logging import sys logger = logging.getLogger() logger.setLevel(logging.INFO) formatter = logging.Formatter('%(asctime)s | %(levelname)s | %(message)s', '%m-%d-%Y %H:%M:%S') stdout_handler = logging.StreamHandler(sys.stdout) stdout_handler.setLevel(logging.DEBUG) stdout_handler.setFormatter(formatter) file_handler = logging.FileHandler('logs.log') file_handler.setLevel(logging.DEBUG) file_handler.setFormatter(formatter) logger.addHandler(file_handler) logger.addHandler(stdout_handler)

python logging to file

import logging

"""
DEBUG
INFO
WARNING
ERROR
CRITICAL
"""
# asctime: time of the log was printed out
# levelname: name of the log
# datefmt: format the time of the log
# give DEBUG log
logging.basicConfig(format='%(asctime)s %(levelname)-8s [%(filename)s:%(lineno)d] %(message)s',
    datefmt='%d-%m-%Y:%H:%M:%S',
    level=logging.DEBUG,
    filename='logs.txt')

logger = logging.getLogger('my_app')

logger.debug("This is a debug log")
logger.info("This is an info log")
logger.critical("This is critical")
logger.error("An error occurred")

Posted by: Guest on August-13-2020

Source

import logging rfh = logging.handlers.RotatingFileHandler( filename='foo.log', mode='a', maxBytes=20*1024*1024, backupCount=2, encoding=None, delay=0 ) logging.basicConfig( level=logging.DEBUG, format="%(asctime)s %(name)-25s %(levelname)-8s %(message)s", datefmt="%y-%m-%d %H:%M:%S", handlers=[ rfh ] ) logger = logging.getLogger('main') logger.debug("test")

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