是否可以从python 3.0中的单个模块登录多个日志文件,而在使用flask框架时,该日志文件是根据某些请求参数命名的。
如果我像单个模块一样运行并导入,下面的代码可以正常工作,但是当我使用flask运行时,它会在第一次尝试中写入,但后来又退回到登录到根记录器。
我想要烧瓶中的日志记录工厂,可以检查记录器是否已经存在以及是否已经存在,然后登录同一文件,如果没有,则创建一个新的记录器并记录到新文件中。
非常感谢您的帮助。
def setup_logger(名称,日志文件,级别= logging.INFO):
my_file = Path(log_file)
print(my_file)
if my_file.is_file():
print("handler details")
print(logging.getLogger(name).hasHandlers())
print(type(logging.getLogger(name).hasHandlers()))
if logging.getLogger(name).hasHandlers():
print("old logger and it has handler")
logger.propagate = False
return logging.getLogger(name)
else:
handler = logging.FileHandler(log_file, mode='a')
handler.setFormatter(formatter)
logger = logging.getLogger(name)
logger.setLevel(level)
logger.addHandler(handler)
logger.propagate = False
print("old logger that has no handler")
return logger
else:
handler = logging.FileHandler(log_file, mode='a')
handler.setFormatter(formatter)
logger = logging.getLogger(name)
logger.setLevel(level)
logger.addHandler(handler)
print("new logger with new handler")
logger.propagate = False
return logger
答案 0 :(得分:1)
好吧,我能够使用以下方法实现所需的功能:
def setup_logger( name, log_file, level=logging.DEBUG):
my_file = Path(log_file)
# print("check the if condition for the file")
# print(my_file.is_file())
if my_file.is_file():
#print(logging.getLogger(name).hasHandlers())
# if logging.getLogger(name).hasHandlers():
if len(logging.getLogger(name).handlers)>0:
return logging.getLogger(name)
else:
handler = logging.FileHandler(log_file, mode='a')
handler.setFormatter(formatter)
logger = logging.getLogger(name)
logger.setLevel(level)
logger.addHandler(handler)
logger.propagate = False
return logger
else:
handler = logging.FileHandler(log_file, mode='a')
handler.setFormatter(formatter)
logger = logging.getLogger(name)
logger.setLevel(level)
logger.addHandler(handler)
logger.propagate = False
return logger