Python 3 - dynamically catch unknown number of exceptions

Asked Feb 04 '19 at 09:14

Active Feb 04 '19 at 09:22

Viewed 45 times

I want to write a decorator, where you could specify any number of exceptions to catch when calling a function (and then how to handle exception output for each exception). Now If I would know the number of exceptions, I could do just:

try:
    fun()
except SomeException1 as e:
    # handle
except SomeException2 as e:
    # handle

But let say I get list of exceptions. exceptions_to_handle = [SomeException1, SomeException2]

Probably could do this, but maybe there is a better way?

try:
    fun()
except Exception as e:
    for exc in exceptions_to_handle:
        if isinstance(e, exc):
            # handle

asked Feb 04 '19 at 09:14

Andrius

19,658
37
143
243

2

Wouldn't it be better to store *how to handle the exception* along with the list? – DirtyBit Feb 04 '19 at 09:18
@user5173426 sure, but the question is not how to handle specific exception. It is how to catch it. I just written the reasoning why I need that. – Andrius Feb 04 '19 at 09:19
2

this might help: https://stackoverflow.com/questions/6470428/catch-multiple-exceptions-in-one-line-except-block – hiro protagonist Feb 04 '19 at 09:23
Oh right. Forgot about that. Thanks – Andrius Feb 04 '19 at 09:54

Python 3 - dynamically catch unknown number of exceptions

0 Answers0