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

[Bill Deegan]

William,

Thanks!
Wasn't aware.  Might you have a pointer to a description of the issue?

-Bill

On Wed, Nov 18, 2015 at 10:55 AM, William Blevins <wblevins001 at gmail.com>
wrote:

> In the rare case you didn't know, keep in mind that some early minor
> versions for python 2.7 had leaking file descriptors with subprocess, so
> make sure that the SCons docs require and test against Python 2.7.4+
>
> V/R,
> William
>
> On Wed, Nov 18, 2015 at 5:33 PM, Bill Deegan <bill at baddogconsulting.com>
> wrote:
>
>> 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
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Scons-users mailing list
>>>>>>> Scons-users at scons.org
>>>>>>> https://pairlist4.pair.net/mailman/listinfo/scons-users
>>>>>>>
>>>>>>>
>>>>>>
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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
>>> Scons-users at scons.org
>>> https://pairlist4.pair.net/mailman/listinfo/scons-users
>>>
>>>
>>
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>>
>
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