On Mon, Jul 16, 2012 at 11:45 PM, Dan Stromberg <drsali...@gmail.com> wrote:
> > On Mon, Jul 16, 2012 at 11:20 PM, Andrew Bennetts > <and...@bemusement.org>wrote: > >> Dan Stromberg wrote: >> […] >> > I'm playing with twisted.internet.defer.setDebugging now. >> > >> > Is there a corresponding function that can be used to produce its >> report? >> > If I use it in a program with an infinite loop, it seems like I never >> get >> > the report, but if I use it in a program with a finite length, I >> eventually >> > get a useful-looking report. >> >> It's triggered by garbage collection of a Deferred with an unhandled >> error. So >> you're at the mercy of when the garbage collector of your Python VM >> decides to >> collect that object. >> >> You could call yourDeferred._debugInfo._getDebugTracebacks() yourself, >> though, >> if you don't mind (ab)using private attributes that might break without >> warning. > > > Strangely, this doesn't give the report until after the sleep > finishes... ? > > It turned out that I needed to print d._debugInfo._getDebugTracebacks(), rather than just running d._debugInfo._getDebugTracebacks(). However, it always appears to print the debug tracebacks for the deferred named - in this case, d. It doesn't appear to be selecting the correct deferred(s) to print.
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