[PyQt] PyQt4 gc problems

Phil Thompson phil at riverbankcomputing.co.uk
Fri Aug 31 23:28:54 BST 2007

On Friday 31 August 2007, tim blechmann wrote:
> hi all,
> i am using PyQt4 in a multithreaded c++ application. most of the threads
> are not created by qt, but are native threads that are managed from c++.
> so, i had quite a number of crashes, with messages like:
> ASSERT failure in QCoreApplication::sendEvent: "Cannot send events to
> objects owned by a different thread. Current thread b022db50. Receiver
> 'mainWindow' (of type 'QWidget') was created in thread 83ffd10", file
> kernel/qcoreapplication.cpp, line 269
> from what i can tell, these events are sent from the python garbage
> collector, which is called from an arbitrary thread, that is accessing
> python. after disabling the automatic gc and running gc.collect() from
> the QApplication loop manually, it seems to work flawless.
> is this a known bug/feature?
> thanks, tim

Try the current snapshot.


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