launchpad-dev team mailing list archive

[Andrew Bennetts <andrew.bennetts@xxxxxxxxxxxxx>]

Andrew Bennetts wrote:
[…]
> As Jono says it'd be wonderful to improve this in upstream Twisted, it's
> something that would impact many Twisted apps to some degree.  Perhaps
> it would be ok to treat the _debugInfo flag that already exists as the
> flag to set whether or not to capture tracebacks in errbacks?  That
> might be a bit too all-or-nothing, although it's possible that the
> “expensive” work _debugInfo currently does is actually much cheaper than
> the regular cleanFailure calls.  It's certainly easy to make a patch to
> do that, so I'll do so and see what the other Twisted devs think.  Maybe
> it'll inspire someone to think of a better solution.

I've filed <http://twistedmatrix.com/trac/ticket/5011> for this change.
As I say in comments there another option may be to keep capturing
tracebacks when callbacks raise errors, but stop capturing all frame
details, i.e. the locals and globals.

-Andrew.