[PyKDE] Crash with unnotified event
rasky at develer.com
Wed Jan 17 15:52:55 GMT 2007
On 1/17/2007 2:07 PM, Phil Thompson wrote:
>> this script causes a segfault for me with latest SIP snapshot and PyQt
>> from qt import *
>> app = QApplication()
>> k = QWidget(None)
>> qApp.postEvent(k, QCustomEvent(QEvent.User))
>> del app
> Is this a recent problem with current snapshots?
This specific testcase crashes also with older versions of SIP and PyQt
(4.4 and 3.16).
I'm getting a serie of crashes, all related to QApplication destruction
and event delivery, which never triggered before but now trigger with
recent SIP snapshots. This is the first testcase reduction I made (they
are pretty difficult to reduce!). I have probably at least another to
report that I'm still reducing.
> Is there a real use case (you'd never actually code the above)? Otherwise just
> remove the "del".
Yes, the real use case is an automatic testsuite. For each test, I need
to create and destroy a new QApplication to start afresh. It kind of
works in C++, but I have historically always had troubles with PyQt. A
generic workaround for me right now is to put a qApp.processEvents()
before app destruction, but I would prefer if the bugs were fixed (and I
thought you preferred it too...).
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