python3 日志重复打印logger
在python2中正常的日志，单只直接使用python3,发现日志重复了，其实是handlers多添加的原因，
python2代码
-----------------------------------------------------------------------------------------------------------------------------------------------------------
def my_log(msg):
if logging.getLogger('log.log'):
return logging.getLogger('log.log')
logger = logging.getLogger('log.log')
ch = logging.StreamHandler()
ch.setLevel(logging.ERROR)
fmt = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
ch.setFormatter(fmt)
logger.addHandler(ch) logger.error(msg)
-----------------------------------------------------------------------------------------------------------------------------------------------------------
适当修改一下：
python3代码：
-----------------------------------------------------------------------------------------------------------------------------------------------------------
def my_log(msg):
if logging.getLogger('log.log'):
return logging.getLogger('log.log')
logger = logging.getLogger('log.log')
if not logger.handlers:
ch = logging.StreamHandler()
ch.setLevel(logging.ERROR)
fmt = logging.Formatter('%(asctime)s - %(name)s - %(levelname)s - %(message)s')
ch.setFormatter(fmt)
logger.addHandler(ch) logger.error(msg)
-----------------------------------------------------------------------------------------------------------------------------------------------------------
加一个重复判断就行
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