[PyQt] PyQt v5.11 and Python v3.5 (was: Re: ANN: PyQt v5.11.2 and SIP v4.19.11 Released)

[Florian Bruhin]

On Wed, Jul 04, 2018 at 09:03:15AM +0100, Phil Thompson wrote:
> On 3 Jul 2018, at 11:09 pm, Phil Thompson <phil at riverbankcomputing.com> wrote:
> > 
> > On 3 Jul 2018, at 9:54 pm, Dmitry Shachnev <mitya57 at ubuntu.com> wrote:
> >> 
> >> On Tue, Jul 03, 2018 at 12:31:55PM +0100, Phil Thompson wrote:
> >>>> 2) With these releases, I am seeing PyQt5 import failures with Python 3.5
> >>>> on Windows:
> >>>> 
> >>>> https://ci.appveyor.com/project/mitya57/retext/build/1.0.217/job/tyw6ceps2o925eq9
> >>>> 
> >>>> File "c:\projects\retext\ReText\__init__.py", line 24, in <module>
> >>>>  from PyQt5.QtCore import QByteArray, QLocale, QSettings, QStandardPaths
> >>>> ImportError: DLL load failed: The specified procedure could not be found.
> >>>> 
> >>>> Do you know what could cause this?
> >>> 
> >>> I can't reproduce it (Windows 10, 64-bit, Python v3.5.4).
> >> 
> >> Apparently AppVeyor has Python v3.5.3, so probably that was the issue.
> >> 
> >> I will just drop 3.5 from my CI config.
> > 
> > The Python minor version shouldn't make any difference.
> 
> ...but it does. I think the problem is with this...
> 
> https://docs.python.org/3/c-api/slice.html#c.PySlice_GetIndicesEx
> 
> I think this affects Python v3.5.0-3 and v3.6.0.

I just got a similar report with Python 3.5.1-3 (on Ubuntu 16.04):

    from PyQt5 import QtCore
ImportError: .../python3.5/site-packages/PyQt5/QtCore.so: undefined symbol: PySlice_AdjustIndices

Note that this seems to be about PySlice_AdjustIndices and not
PySlice_GetIndicesEx.

The documentation says that was added in 3.6.1:
https://docs.python.org/3/c-api/slice.html#c.PySlice_AdjustIndices

Florian

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