[PyQt] Freezes and crashes with signal autoconnection

Phil Thompson phil at riverbankcomputing.com
Thu Dec 3 10:39:15 GMT 2009

On Wed, 2 Dec 2009 17:09:36 -0800 (PST), Christian Roche
<christian.roche.fr at gmail.com> wrote:
> Phil Thompson-5 wrote:
>> Either way people need a small, self-contained example that demonstrates
>> the problem.
> Hi Phil,
> I think I've been able to isolate a small piece of code that consistently
> reproduces the problem.  http://old.nabble.com/file/p26619445/main.py
> piece of code  displays a gray rectangle on my system and systematically
> crashes when I click on it.  My config is as follows:
> qt-4.5.3-9.fc11.i586.rpm
> PyQt4-4.5.4-1.fc11.i586.rpm
> sip-4.8.2-1.fc11.i586.rpm
> I'd be very interested in understanding what's wrong here because i've
> strugling for weeks with incomprehensible crashes that seem to come out
> nowhere and I've not the single clue what's going on.

You might want to look at the last paragraph of...


...as it seems to apply to your ImageLink type.

I'd suggest changing the design so that you are passing something simpler
than a QObject between threads.


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