[Python-modules-team] Bug#955612: python3-pyqt5: Cannot import Qt from QtCore

[Dmitry Shachnev]

Control: tags -1 moreinfo

Hi,

On Fri, Apr 03, 2020 at 11:40:26AM +0200, mathieu wrote:
> I tried to run this sample code:
>
>     #! /usr/bin/python3
>     from PyQt5.QtCore import Qt
>     print("Hello")
>
> And I instantly get this error:
>
> Traceback (most recent call last):
>   File "./test-1.py", line 5, in <module>
>     from PyQt5.QtCore import Qt
> ImportError: /usr/lib/python3/dist-packages/PyQt5/QtCore.cpython-37m-x86_64-linux-gnu.so:
> symbol _ZN23QOperatingSystemVersion11MacOSMojaveE version Qt_5 not defined in file libQt5Core.so.5
> with link time reference

It is strange, because this symbol is present in libqt5core5a since version
5.11.2+dfsg-1.

Can it be that you have a custom Qt installation somewhere? E.g. from the
Qt website or installed with some other package manager?

Can you check where libQt5Core.so.5 points to in the output of this command?

ldd /usr/lib/python3/dist-packages/PyQt5/QtCore.cpython-37m-x86_64-linux-gnu.so

--
Dmitry Shachnev
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