[PyQt] Decorated slot has no compatible signature

[Tony Arnold]

Florian,

On Sun, 2016-11-20 at 21:19 +0100, Florian Bruhin wrote:
> * Tony Arnold <tony.arnold at manchester.ac.uk> [2016-11-20 19:16:01
> +0000]:
> > I'm using QNetworkManager to upload some files to a site. To see
> > the
> > progress I've defined a slot that gets connected to the
> > uploadProgress
> > signal.
> > 
> > The slot is defined:
> > 
> >     @pyqtSlot(int, int)
> >     def updateDataTransferProgress(self, readBytes, totalBytes):
> > 
> > and is connected to a reply object thus:
> > 
> >   reply.uploadProgress.connect(self.updateDataTransferProgress)
> > 
> > However, this gives the error message:
> > 
> > TypeError
> > "decorated slot has no signature compatible with
> > uploadProgress(qint64,qint64)"
> > 
> > I'm running on Ubuntu 16.10 which has PyQt5.7. I believe slot
> > verification has been tightened
> > up in this version, but as far as I can see the above declaration
> > is correct.
> > 
> > How can I fix this?
> 
> Use @pyqtSlot('qint64', 'qint64') instead.

Thanks. I tried this and I now get

    The debugged program raised the exception unhandled TypeError
    "connect() failed between uploadProgress(qint64,qint64) and
    updateDataTransferProgress()"

Regards,
Tony.
-- 
Tony Arnold MBCS, CITP | Senior IT Security Analyst | Directorate of IT Services | G64, Kilburn Building | The University of Manchester | Manchester M13 9PL | T: +44 161 275 6093 | M: +44 773 330 0039