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Re: Missing stack frames?

From Nikolaus Rath <Nikolaus@rath.org>
Subject Re: Missing stack frames?
References (1 earlier) <CAPTjJmqzgZnziz3+yZb-4bsYtfxT2AG5HQ9Pb3Ya8AWDW8+oHA@mail.gmail.com> <87oay8pobi.fsf@rath.org> <87r433ri00.fsf@handshake.de> <87wqcuu6jd.fsf@vostro.rath.org> <CAPTjJmoAYVi+1kA0uYkcfk10WZcEsLs3ci-0u9hj-LAJk+LHtA@mail.gmail.com>
Date 2014-06-06 19:04 -0700
Newsgroups comp.lang.python
Message-ID <mailman.10842.1402106655.18130.python-list@python.org> (permalink)

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Chris Angelico <rosuav@gmail.com> writes:
> On Fri, Jun 6, 2014 at 12:16 PM, Nikolaus Rath <Nikolaus@rath.org> wrote:
>>  - Is there some way to make the call stack for destructors less confusing?
>
> First off, either don't have refloops, or explicitly break them.

The actual code isn't as simple as the example. I wasn't even aware
there were any refloops. Guess I have to start hunting them down now.

> That'll at least make things a bit more predictable; in CPython,
> you'll generally see destructors called as soon as something goes out
> of scope. Secondly, avoid threads when you're debugging a problem! I
> said this right at the beginning. If you run into problems, the first
> thing to do is isolate the system down to a single thread. Debugging
> is way easier without threads getting in each other's ways.

I don't see how this would have made a difference in this case. I still
would have gotten lots of apparently non-sensical backtraces. Only this
time they would all come from MainThread.


Best,
-Nikolaus
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Re: Missing stack frames? Nikolaus Rath <Nikolaus@rath.org> - 2014-06-06 19:04 -0700

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