[Scons-users] Is the warning about missing pywin32 extensions on parallel builds still needed?

Bill Deegan bill at baddogconsulting.com
Wed Nov 18 12:33:17 EST 2015


Currently the pywin32 extensions are used by the code.
If it's not available I believe it disables parallel builds on win32.
I'm looking at switching the code to use subprocess, but it may take a
little bit to verify that such a change is stable.

On Wed, Nov 18, 2015 at 12:06 AM, Erling D. Andersen <e.d.andersen at mosek.com
> wrote:

> Everything is working fine using Python 2.7.
>
> However, I do not understand why the latest Scons prints out:
>
> scons: warning: you do not seem to have the pywin32 extensions installed;
>         parallel (-j) builds may not work reliably with open Python files
>
> on Windows. That seems a legacy issue and the warning is no longer
> needed. So why not remove it?
>
>
> On Tue, Nov 17, 2015 at 3:15 PM, William Blevins <wblevins001 at gmail.com>
> wrote:
>
>>
>>
>> On Tue, Nov 17, 2015 at 11:51 AM, Erling D. Andersen <
>> e.d.andersen at mosek.com> wrote:
>>
>>> Did you find out of something? It is still in Scons version 2.4.1 run
>>> with Python 2.7.
>>>
>>
>> I assume that you mean the warning still exists in SCons 2.4.1.
>>
>>
>>>
>>> Thanks for the good work with new version. It worked out of the box.
>>>
>>
>> Did version 2.3.6 not work of the box? What is the context?
>>
>>
>>>
>>> Erling
>>>
>>> On Fri, Aug 28, 2015 at 5:08 AM, Bill Deegan <bill at baddogconsulting.com>
>>> wrote:
>>>
>>>> Richard,
>>>>
>>>> That's a very good question.
>>>> I'll have to look into it.
>>>>
>>>> -Bill
>>>>
>>>> On Thu, Aug 27, 2015 at 6:30 AM, Richard Viney <richard.viney at gmail.com
>>>> > wrote:
>>>>
>>>>> Hi all,
>>>>>
>>>>> When running parallel builds under SCons 2.3.6 and Python 2.7.10 on
>>>>> Windows you get the following warning if the pywin32 extensions aren’t
>>>>> installed:
>>>>>
>>>>> scons: warning: you do not seem to have the pywin32 extensions
>>>>> installed;
>>>>>         parallel (-j) builds may not work reliably with open Python
>>>>> files.
>>>>>
>>>>> This was discussed back in 2008 here:
>>>>> http://comments.gmane.org/gmane.comp.programming.tools.scons.user/17858
>>>>>
>>>>> It seems that there were ancient Python versions with threading bugs
>>>>> and the pywin32 extensions were needed to work around these issues.
>>>>>
>>>>> I’m curious whether this still applies given that Python >= 2.6 is now
>>>>> required? Is this warning still relevant and is pywin32 needed?
>>>>>
>>>>> Thanks,
>>>>> Richard
>>>>>
>>>>> _______________________________________________
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>>>>>
>>>>>
>>>>
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>>>
>>>
>>> --
>>> Erling D. Andersen
>>>
>>> MOSEK APS
>>> Fruebjergvej 3, Box 16,
>>> DK-2100 Copenhagen O
>>>
>>> Ph: +4539179907
>>> Mo: +4523629520
>>>
>>>
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>>>
>>
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>
>
> --
> Erling D. Andersen
>
> MOSEK APS
> Fruebjergvej 3, Box 16,
> DK-2100 Copenhagen O
>
> Ph: +4539179907
> Mo: +4523629520
>
>
> _______________________________________________
> Scons-users mailing list
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> https://pairlist4.pair.net/mailman/listinfo/scons-users
>
>
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