Question

[logger_main]
level=INFO
handlers=file_handler
qualname=main
propagate=0

[handler_file_handler]
class=FileHandler
formatter=formatter
class=handlers.RotatingFileHandler
maxBytes=31457280
level=DEBUG
args=('../log/logfile.txt',)

[formatter_formatter]
format=%(asctime)s - %(RequestNumber)s - %(funcName)-20s() - %(levelname)-10s - %(message)s
format=%(asctime)s - %(RequestNumber)s - %(funcName)-20s() - %(levelname)-10s - %(message)s

在Python中，我使用记录器适配器更新写入文件的每个日志中的请求编号：

log = logging.LoggerAdapter(logging.getLogger('main'), {"RequestNumber" : requestNum()});

抛出错误：下面是错误的追溯 -

Traceback (most recent call last):
  File "C:\Python27\lib\logging\__init__.py", line 861, in emit
    msg = self.format(record)
  File "C:\Python27\lib\logging\__init__.py", line 734, in format
    return fmt.format(record)
  File "C:\Python27\lib\logging\__init__.py", line 469, in format
    s = self._fmt % record.__dict__
KeyError: 'RequestNumber'

Answer 1

适合我。

>>> import logging
>>> logger = logging.getLogger('foo')
>>> formatter = logging.Formatter('%(customid)s %(message)s')
>>> handler = logging.StreamHandler()
>>> handler.setFormatter(formatter)
>>> logger.addHandler(handler)
>>> adapter = logging.LoggerAdapter(logger, {'customid': 'foo'})
>>> adapter.warning('test')
foo test

在使用记录器适配器时，Python记录器会为自定义记录器输入引发KeyError

1 个答案: