观察:当我注释掉from logging import handlers
时,会出现下面提到的错误。
Error:
file_handler = logging.handlers.RotatingFileHandler(
AttributeError: module 'logging' has no attribute 'handlers'
问题:如果我已经导入了logging
,为什么还需要执行from logging import handlers
?
import logging
import sys
#from logging import handlers
def LoggerDefination():
#file_handler = logging.FileHandler(filename='..\\logs\\BasicLogger_v0.1.log', mode='a')
file_handler = logging.handlers.RotatingFileHandler(
filename="..\\logs\\BasicLogger_v0.2.log",
mode='a',
maxBytes=20000,
backupCount=7,
encoding=None,
delay=0
)
file_handler.setLevel(logging.DEBUG)
stdout_handler = logging.StreamHandler(sys.stdout)
stdout_handler.setLevel(logging.DEBUG)
handlers = [file_handler, stdout_handler]
logging.basicConfig(
level=logging.DEBUG,
format='%(asctime)s | %(module)s | %(name)s | LineNo_%(lineno)d | %(levelname)s | %(message)s',
handlers=handlers
)
def fnt_test_log1():
LoggerDefination()
WriteLog1 = logging.getLogger('fnt_test_log1')
#WriteLog1.propagate=False
WriteLog1.info("######## START OF : test_log1 ##########")
WriteLog1.debug("test_log1 | This is debug level")
WriteLog1.debug("test_log1 | This is debug level")
WriteLog1.info("test_log1 | This is info level")
WriteLog1.warning("test_log1 | This is warning level")
WriteLog1.error("test_log1 | This is error level")
WriteLog1.critical("test_log1 |This is critiacl level")
WriteLog1.info("######## END OF : test_log1 ##########")
def fnt_test_log2():
LoggerDefination()
WriteLog2 = logging.getLogger('fnt_test_log2')
WriteLog2.info("######## START OF : test_log2 ##########")
WriteLog2.debug("test_log2 ===> debug")
WriteLog2.debug("test_log2 | This is debug level")
WriteLog2.debug("test_log2 | This is debug level")
WriteLog2.info("test_log2 | This is info level")
WriteLog2.warning("test_log2 | This is warning level")
WriteLog2.error("test_log2 | This is error level")
WriteLog2.critical("test_log2 |This is critiacl level")
WriteLog2.info("######## STOP OF : test_log2 ##########")
if __name__ == '__main__':
LoggerDefination()
MainLog = logging.getLogger('main')
LoggerDefination()
MainLog.info("Executing script: " + __file__)
fnt_test_log1()
fnt_test_log2()