我有一个记录器,它在脚本开始时正常运行,然后在中间中断。看起来它的处理程序被 str 覆盖了,但我不知道在哪里。
在脚本的开头,我打印处理程序及其级别。以下代码:
print 'Array of handlers', logger.handlers
for h in logger.handlers:
print 'Handler', h
print 'Handler level', h.level
产生这个:
Array of handlers [<logging.FileHandler instance at 0x19ef320>]
Handler <logging.FileHandler instance at 0x19ef320>
Handler level 0
现在在执行过程中,您会看到记录器的处理程序 ( hdlr ) 被解释为str。
Started from <class 'mymodule.ext.freebase.HTTPMetawebSession'>.
Traceback (most recent call last):
File "hadoop/get_web_data.py", line 144, in <module>
main()
File "hadoop/get_web_data.py", line 121, in main
for count, performer in enumerate(results):
File "/home/wraith/dev/modules/mymodule/ext/freebase.py", line 126, in mqlreaditer
r = self._httpreq_json(service, 'POST', form=dict(query=qstr))
File "/home/wraith/dev/modules/mymodule/contrib/freebase/api/session.py", line 369, in _httpreq_json
resp, body = self._httpreq(*args, **kws)
File "/home/wraith/dev/modules/mymodule/contrib/freebase/api/session.py", line 346, in _httpreq
self.log.info('%s %s%s%s', method, url, formstr, headerstr)
File "/usr/lib/python2.5/logging/__init__.py", line 985, in info
apply(self._log, (INFO, msg, args), kwargs)
File "/usr/lib/python2.5/logging/__init__.py", line 1101, in _log
self.handle(record)
File "/usr/lib/python2.5/logging/__init__.py", line 1111, in handle
self.callHandlers(record)
File "/usr/lib/python2.5/logging/__init__.py", line 1147, in callHandlers
if record.levelno >= hdlr.level:
AttributeError: 'str' object has no attribute 'level'
在最后两行中,hdlr.level爆炸了,因为hdlr不是str。
if record.levelno >= hdlr.level:
AttributeError: 'str' object has no attribute 'level'
在开始设置处理程序之后,这很好,我不会添加另一个处理程序或以任何方式更改现有处理程序。我在记录器上调用的唯一命令是logger.info('event to log')
.
什么会以这种方式改变记录器的处理程序?