[PyQt] Decorated slot has no compatible signature

[Florian Bruhin]

* 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.

Florian

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