[prev in list] [next in list] [prev in thread] [next in thread] 

List:       python-dev
Subject:    [Python-Dev] PEP 344: Exception Chaining and Embedded Tracebacks
From:       Ka-Ping Yee <python-dev () zesty ! ca>
Date:       2005-05-16 21:41:54
Message-ID: Pine.LNX.4.58.0505161634540.14555 () server1 ! LFW ! org
[Download RAW message or body]

This PEP is a concrete proposal for exception chaining, to follow
up on its mention here on Python-Dev last week as well as earlier
discussions in the past year or two.

    http://www.python.org/peps/pep-0344.html

I've tried to summarize the applications for chaining mentioned in
these discussions, survey what's available in other languages, and
come up with a precise specification.

PEP 344 proposes three standard attributes on traceback objects:

    __context__ for implicit chaining (an unexpected exception
        occurred during 'except' or 'finally' processing)

    __cause__ for explicit chaining (intentional translation or
        augmenting of exceptions, set by "raise EXC from CAUSE")

    __traceback__ to point to the traceback

Hope this is useful.  I'd like your feedback.  Thanks!


-- Ping
_______________________________________________
Python-Dev mailing list
Python-Dev@python.org
http://mail.python.org/mailman/listinfo/python-dev
Unsubscribe: http://mail.python.org/mailman/options/python-dev/python-dev%40progressive-comp.com
[prev in list] [next in list] [prev in thread] [next in thread]