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Re: Multiprocessing / threading confusion

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Date Fri, 6 Sep 2013 13:00:49 +1000
Subject Re: Multiprocessing / threading confusion
From Chris Angelico <rosuav@gmail.com>
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On Fri, Sep 6, 2013 at 9:34 AM, Paul Pittlerson <menkomigen6@gmail.com> wrote:
> On Friday, September 6, 2013 1:28:39 AM UTC+3, mar...@python.net wrote:
>
>> Also you can't (and shouldn't) depend on the time that __del__ gets
>> called.  It can get called at any time, in any order and sometimes not
>> at all.*
>
> Wow I did not know that! I was counting on that it reliably gets called when the object is destroyed.

Even that isn't technically reliable, though in CPython, objects will
usually be __del__'d promptly as long as they're not in reference
cycles.  But the main problem here is that the destruction of the
object has nothing to do with the ending of the thread or process; the
object will hang around for as long as the caller might want it.
You'll want to put your "end of process" code at the bottom of run(),
I think, unless there's some other place for it.

ChrisA

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Thread

Multiprocessing / threading confusion Paul Pittlerson <menkomigen6@gmail.com> - 2013-09-05 12:27 -0700
  Re: Multiprocessing / threading confusion "marduk@python.net" <marduk@python.net> - 2013-09-05 18:28 -0400
    Re: Multiprocessing / threading confusion Paul Pittlerson <menkomigen6@gmail.com> - 2013-09-05 16:34 -0700
      Re: Multiprocessing / threading confusion Chris Angelico <rosuav@gmail.com> - 2013-09-06 13:00 +1000
  Re: Multiprocessing / threading confusion Chris Angelico <rosuav@gmail.com> - 2013-09-06 08:46 +1000
    Re: Multiprocessing / threading confusion Paul Pittlerson <menkomigen6@gmail.com> - 2013-09-05 17:03 -0700
      Re: Multiprocessing / threading confusion Piet van Oostrum <piet@vanoostrum.org> - 2013-09-05 23:54 -0400
        Re: Multiprocessing / threading confusion Piet van Oostrum <piet@vanoostrum.org> - 2013-09-06 00:28 -0400
  Re: Multiprocessing / threading confusion Paul Pittlerson <menkomigen6@gmail.com> - 2013-09-06 11:27 -0700
    Re: Multiprocessing / threading confusion Skip Montanaro <skip@pobox.com> - 2013-09-06 13:53 -0500
    Re: Multiprocessing / threading confusion Dave Angel <davea@davea.name> - 2013-09-06 20:34 +0000
    Re: Multiprocessing / threading confusion Piet van Oostrum <piet@vanoostrum.org> - 2013-09-06 17:15 -0400

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