2

我想在 Python3 中获取异常的详细信息

例如...在 foo.py

import sys

try:
  {}.encode('utf8')
except:
  err = sys.exc_info()[0]

  print("itself\t", err)
  print(".args\t", err.args)

  print("dir\t", dir(err.args))
  print("type\t", type(err.args))

  print("vars\t", vars(err))

  print("--------k,v in vars---------")
  for k,v in vars(err).items():
    print(k)
    print(v)

标准输出是...

itself   <class 'AttributeError'>
.args    <attribute 'args' of 'BaseException' objects>
dir      ['__class__', '__delattr__', '__delete__', '__dir__', '__doc__', '__eq__', '__format__', '__ge__', '__get__', '__getattribute__', '__gt__', '__hash__', '__init__', '__le__', '__lt__', '__name__', '__ne__', '__new__', '__objclass__', '__qualname__', '__reduce__', '__reduce_ex__', '__repr__', '__set__', '__setattr__', '__sizeof__', '__str__', '__subclasshook__']
type     <class 'getset_descriptor'>
vars     {'__init__': <slot wrapper '__init__' of 'AttributeError' objects>, '__doc__': 'Attribute not found.', '__new__': <built-in method __new__ of type object at 0x821c3a0>}
--------k,v in vars---------
__init__
<slot wrapper '__init__' of 'AttributeError' objects>
__doc__
Attribute not found.
__new__
<built-in method __new__ of type object at 0x821c3a0>

我想从实例“err”中获得更多关于这个内置异常类的信息，

如

  • 文件：foo.py
  • 线路：4
  • MESSAGE : 'dict' 对象没有属性 'encode'

就像这段代码的标准输出

{}.encode('utf8')

这个

Traceback (most recent call last):

  File "foo.py", line 2, in <module>

    {}.encode('utf8')

AttributeError: 'dict' object has no attribute 'encode'
4

1 回答 1

3

Use the traceback module to print tracebacks from your current position or for a given exception.

You don't state what output you are expecting, but the traceback module most likely will be able to produce output best suited for your needs, whatever they may be.

于 2013-07-25T13:17:28.790 回答