How to get inner exception traceback
bockman at virgilio.it
bockman at virgilio.it
Thu Apr 24 08:50:51 EDT 2008
On 24 Apr, 13:20, Thomas Guettler <h... at tbz-pariv.de> wrote:
> Hi,
>
> How can you get the traceback of the inner exception?
>
> try:
> try:
> import does_not_exit
> except ImportError:
> raise Exception("something wrong")
> except:
> ...
>
> Background: In Django some exceptions are caught and a new
> exception gets raised. Unfortunately the real error is hard
> to find. Sometimes I help myself and change (in this example)
> ImportError to e.g. IOError and then I can see the real root
> of the problem. But maybe there is a way to get the inner
> exception and its traceback. This could be displayed in the
> debug view.
>
> Thomas
>
> --
> Thomas Guettler,http://www.thomas-guettler.de/
> E-Mail: guettli (*) thomas-guettler + de
I'm not sure it ill work since sys.exc_info() might not return a deep
copy of the traceback info,
but you could try to store the inner exception and its traceback as
attributes of the outer exception:
class ReraisedException(Exception):
def __init__(self, message, exc_info):
Exception.__init__(self, message)
self.inner_exception = exc_info
try:
try:
import does_not_exit
except ImportError:
raise ReraisedException("Something wrong", sys.exc_info() )
except ReraisedException, e:
... # here you can use e.inner_exception
except:
...
Ciao
-----
FB
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