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Catch exception with message?

Below is exception type and it is user defined exception. I do not see
error number in exception stack. What other option we can use as
filter in below exception apart from message?

UserDefinedException: User defined message: {}
#012  File "/opt/cio/lib/python2.7/site-packages/", line
1100, in create_from_abc
#012    yield self.create(x, name, description)
#012  File "/opt/cio/lib/python2.7/site-packages/", line
1132, in create
#012    'errors.create.type_not_supported.{0}'.format(abc['type']),

On Sat, Jun 4, 2016 at 6:12 AM, Random832 <random832 at> wrote:
> On Fri, Jun 3, 2016, at 19:14, Piyush Verma wrote:
>> Generally we catch exception using
>> except Exception as e:
>> But sometimes, we see same type of exception is present with different
>> message.Is there a way to capture same exception with message
>> filtering? Please help me to do this.
> The message is meant to be human-readable, and may change without
> warning. Is there no other property on the exceptions you want to catch
> that can be used to distinguish them? (errno, perhaps?) What's your
> specific use case?
> --