[IronPython] Traceback regression

Dino Viehland dinov at exchange.microsoft.com
Mon Apr 28 01:14:35 CEST 2008

Yep, it's fixed and the tracebacks should now be better than they have ever been (even in 1.x).  There were some small perf regressions from fixing it that I'm still working in resolving though - primarily around throwing additional overhead when throwing exceptions.

-----Original Message-----
From: users-bounces at lists.ironpython.com [mailto:users-bounces at lists.ironpython.com] On Behalf Of Michael Foord
Sent: Sunday, April 27, 2008 4:10 PM
To: Discussion of IronPython
Subject: Re: [IronPython] Traceback regression

Sanghyeon Seo wrote:
> Traceback has regressed.

Seo thinks this might actually now be fixed in the repository
is marked as closed in 2.0 Beta 2).

If this *isn't* fixed it would be a major blocker for Resolver - it
would prevent us providing accurate error messages to our users.

All the best,

Michael Foord

> import sys
> def f(): 1/0
> try: f()
> except: tb = sys.exc_info()[2]
> while tb:
>     print tb.tb_lineno
>     tb = tb.tb_next
> CPython: 3 2
> IronPython 1.1.1: 3 2
> IronPython 2.0a5: 2
> IronPython 2.0b1: (nothing)
> This is not 1.x->2.x regression. This is regression between 2.x series.

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