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Fri Aug 30 11:47:04 CEST 2013 · https://mail.python.org/pipermail/python-dev/2013-August/128201.html

I missed _MainThread in threading, that's why I've guessed to add
function to signal module.
threading.main_thread() is much better sure.

On Fri, Aug 30, 2013 at 12:39 PM, Antoine Pitrou <solipsis at pitrou.net> wrote:
>
> Le Fri, 30 Aug 2013 12:24:07 +0300,
> Andrew Svetlov <andrew.svetlov at gmail.com> a écrit :
>> Main thread is slightly different from others.
>> Signals can be subscribed from main thread only.
>> Tulip has special logic for main thread.
>> In application code we can explicitly know which thread is executed,
>> main or not.
>> But from library it's not easy.
>> Tulip uses check like
>>     threading.current_thread().name == 'MainThread'
>> This approach has a problem: thread name is writable attribute and can
>> be changed by user code.
>
> Please at least use:
>
>   >>> isinstance(threading.current_thread(), threading._MainThread)
>   True
>
> But really, what we need is a threading.main_thread() function.
>
> (Apologies for the previous incomplete reply (keyboard mishap))
>
> Regards
>
> Antoine.
>
>
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-- 
Thanks,
Andrew Svetlov

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[Python-Dev] Add function to signal module for getting main thread id