[PyQt] Decorated slot has no compatible signature

[Detlev Offenbach]

You could simply un-decorate your slot. That should make it work.

Detlev

On Sunday 20 November 2016, 22:46:08 Tony Arnold wrote:
> 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
> _______________________________________________
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*Detlev Offenbach*
detlev at die-offenbachs.de
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