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From: Ian Kelly <ian.g.kelly@gmail.com>
Date: Tue, 1 Jul 2014 11:47:09 -0600
Subject: Re: thread.interrupt_main() behaviour
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Xref: csiph.com comp.lang.python:73799

On Tue, Jul 1, 2014 at 3:45 AM, Skip Montanaro <skip@pobox.com> wrote:
> On Tue, Jul 1, 2014 at 3:58 AM, Piyush Verma <114piyush@gmail.com> wrote:
>>
>> Since two threads are running same method, I wanted to know which main thread will be interrupted in both case.
>
> I'm no threading expert, but a process can only have one main thread,
> the one you labeled "P". Threads T2 and Tt2 will both interrupt that
> thread.

Also, the threading model has no hierarchy as suggested by the
diagram.  All threads are equals (except the main thread, which is
slightly more equal than others).