[PyQt] Shortcuts are broken. Qt or PyQts fault?

[Baz Walter]

On 03/05/2019 09:02, Phil Thompson wrote:
> On 02/05/2019 22:29, hgn wrote:
>>> Not without a short, complete test script that demonstrates the problem.
>>>
>>> Phil
>>
>> I have attached a python file that will enable you to see the problem.
>> Run it from the terminal.
>> Press Ctrlr+1 to see "Foo Bar", press Numpad 1 (with numpad LED
>> active) to see "Hello World".
>>
>> Tested with Python 3.7.3 and 5.12.1
> 
> Works fine for me. Qt v5.12.3.
> 
> I'm on a Mac so it's Command-1 and the numpad is permanently active.
> 
> Phil

What happens when you press Numpad-1 alone (i.e. *without* the Command 
modifier)? This should trigger numpadAction and print "Hello World" 
instead of "Foo Bar".

When I test this on X11 with PyQt5, Numpad-1 alone does not work. 
However, when I test with PyQt4, it *does* work. I found a Qt4 bug 
report here:

     https://bugreports.qt.io/browse/QTBUG-20191

and a code review for a committed fix here:

     https://codereview.qt-project.org/#/c/15188

Ironically, this fix uses a backport from Qt5. I then discovered some 
more recent unresolved Qt5 bug reports here:

     https://bugreports.qt.io/browse/QTBUG-33093
     https://bugreports.qt.io/browse/QTBUG-50772

Not sure if the OP's previous discussions with the Qt devs stemmed from 
a bug report, but if so, it should probably be made a duplicate of one 
of the above.

(PS: I also tried the script with both PySide and PySide2, and I get 
exactly the same results as with PyQt4/PyQt5).