Question

我有一个Python代码，我希望捕获所有可能的异常并提升我自己的自定义异常，但保留尽可能多的信息。

在Python 3中，有一个构造raise from或多或少地做了我想要的

def function():
    return 1 / 0

class MyException(Exception):
    pass

try:
    function()
except Exception as err:
    raise MyException(err) from err

输出

Traceback (most recent call last):
  File "capture.py", line 9, in <module>
   function()
  File "capture.py", line 3, in function
    return 1 / 0
ZeroDivisionError: division by zero

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "capture.py", line 11, in <module>
    raise MyException(err) from err
__main__.MyException: division by zero

有没有办法在Python 2中获得类似的结果？

因此，为了将来参考，答案是肯定的。鉴于链接问题的答案，我可以通过以下代码实现我想要的东西

import sys

def function():
    return 1 / 0

class MyException(Exception):
    pass

try:
    function()
except Exception as err:
    raise MyException, err, sys.exc_info()[2]

在Python 2中传播异常，保留了回溯

0 个答案: