[PyQt] Slot connections fail with newest snapshot

Phil Thompson phil at riverbankcomputing.com
Thu Jul 21 15:03:21 BST 2016

On 21 Jul 2016, at 1:51 pm, Florian Bruhin <me at the-compiler.org> wrote:
> * Phil Thompson <phil at riverbankcomputing.com> [2016-07-17 12:57:24 +0100]:
>>>> The current behaviour is different, but what are you expecting to
>>>> happen (given your class does not inherit from QObject)?
>>> Oh, @pyqtSlot only works on classes inheriting from QObject? While
>>> that makes some sense, that's news for me!
>>> I think either it should just be ignored (like before?), or show some
>>> useful error message like "pyqtSlot can only be used on classes
>>> inheriting from QObject" or so. I also think this should be pointed
>>> out in the docs for @pyqtSlot - while the examples do inherit from
>>> QObject, it's not explicitly documented anywhere I think.
>> You can use it in classes that are used as mixins with QObject derived classes.
> Hmm, I see.
> So for normal classes which are not QObject subclasses, @pyqtSlot was
> simply ignored so far?


> What about using @pyqtSlot on free functions (rather than methods)?
> It seems that still works fine with the current snapshot - is that
> ignored as well?



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