[PyQt] Signal/slot bug when doing multiple connects and Qt::UniqueConnection

Phil Thompson phil at riverbankcomputing.com
Tue Apr 29 15:05:56 BST 2014

On 28/04/2014 10:39 am, Giuseppe Corbelli wrote:
> On 28/04/2014 09:26, Giuseppe Corbelli wrote:
>> Hi all
>> I've run into an "interesting" side effect, admittedly misusing the
>> signal-slot mechanism. Basically I'm doing multiple connections using 
>> the
>> Qt::UniqueConnection parameter. As expected the slot is run always a 
>> single
>> time, but there's something weird going on in the background. The 
>> receivers()
>> method returns increasing numbers and this little example will kill 
>> the CPU in
>> a few iteractions.

Fixed in tonight's PyQt4 and PyQt5 snapshots - I just hadn't bothered to 
add support for UniqueConnection.


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