我有四个文件,
我正在使用 main 来使用 A.py 和 B.py 的函数,所以现在我必须在调用它们时记录所有信息。
所以我编写了一个名为 log_system 的脚本来为每个脚本文件(例如 A.py、B.py)创建日志处理程序
import logging
def fetchLogger(name="None") :
logger = logging.getLogger(__name__)
logger.setLevel(logging.DEBUG)
if (name == "None"):
#create File for Log
handler = logging.FileHandler('./engine_log/Generic.log')
handler.setLevel(logging.DEBUG)
#log format
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)
#adding the handler to Logging System
logger.addHandler(handler)
else:
#create File for Log
handler = logging.FileHandler('./engine_log/'+str(name))
handler.setLevel(logging.DEBUG)
#log format
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)
#adding the handler to Logging System
logger.addHandler(handler)
return logger
因此,如果我想在脚本文件 A.py 中使用日志记录,我会编写以下行:
import log_system
"""Log System Building """
file_name = 'A.py'
logger = log_system.fetchLogger(file_name)
def hello():
try:
logger.info("excuting Hello")
except:
logger.debug("something went wrong in hello")
但我的日志文件
2017-10-18 14:59:28,695 - log_system - INFO - A.py-excuting Hello
2017-10-18 14:59:28,695 - log_system - INFO - A.py-excuting Hello
2017-10-18 14:59:28,695 - log_system - INFO - A.py-excuting Hello
2017-10-18 14:59:28,695 - log_system - INFO - A.py-excuting Hello
2017-10-18 14:59:28,695 - log_system - INFO - A.py-excuting Hello
它重复日志很多次......
所以我该怎么做 ??
solution
logger = logging.getLogger(name)
if logger.hasHandlers():
logger.handlers = []
logger.setLevel(logging.DEBUG)
#create File for Log
handler = logging.FileHandler('./engine_log/'+str(name))
handler.setLevel(logging.DEBUG)
#log format
formatter = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
handler.setFormatter(formatter)
#adding the handler to Logging System
logger.addHandler(handler)
return logger
这就是我更改 log_system 代码的方式,因此如果我已经创建了日志处理程序,我只是清空处理程序列表,这样它就不会创建重复的记录。