Question

我将记录设置如下

import logging

logging.basicConfig(
    level = logging.DEBUG,
    format = '%(asctime)s %(levelname)s %(message)s',
)

logger = logging.getLogger('myapp.views')

def my_view(request):
    ...
    try:
        parse_file_using_regex(file):
        ...
    except IndexError as ie:
        logger.debug('content of file not proper:',ie)
    except ValueError as ve:
        logger.debug('caused value error')

当发生valuError时，我得到以下输出

...Traceback (most recent call last):
  File "/usr/lib/python2.6/logging/__init__.py", line 768, in emit
    msg = self.format(record)
  File "/usr/lib/python2.6/logging/__init__.py", line 648, in format
    return fmt.format(record)
  File "/usr/lib/python2.6/logging/__init__.py", line 436, in format
    record.message = record.getMessage()
  File "/usr/lib/python2.6/logging/__init__.py", line 306, in getMessage
    msg = msg % self.args
TypeError: not all arguments converted during string formatting
....Traceback (most recent call last):
  File "/usr/lib/python2.6/logging/__init__.py", line 768, in emit
    msg = self.format(record)
  File "/usr/lib/python2.6/logging/__init__.py", line 648, in format
    return fmt.format(record)
  File "/usr/lib/python2.6/logging/__init__.py", line 436, in format
    record.message = record.getMessage()
  File "/usr/lib/python2.6/logging/__init__.py", line 306, in getMessage
    msg = msg % self.args
TypeError: not all arguments converted during string formatting
2012-06-21 09:13:47,909 DEBUG caused value error

有人可以帮我解决这个问题吗？为什么我会收到TypeError？

使用pdb，并在getMessage(self)的python2.6 / logging / init .py

中包含以下内容

import pdb
pdb.set_trace()
print msg,sef.args

...> /usr/lib/python2.6/logging/__init__.py(307)getMessage()
-> print msg,sef.args
(Pdb) msg
'parsing subtitle file:'
(Pdb) self.args
('/home/me/dev/python/django/myapp/media/testpath/testfile.srt',)
(Pdb)

Answer 1

您应该在日志消息中添加％s值，因此它会是这样的：

logger.debug('content of file not propper: %s', ie)

我也以不同的方式使用了记录器，只是直接添加消息：

logger.debug('content of file not propper: %s' % ie)

在我看来更直接的前进。

关于pdb，这是一个非常好的调试程序的方法，我建议100％：）

在django视图中记录python会导致TypeError

1 个答案: