[PySide] PySide application crashes when getting closed, related to QAction menu item

[Manuel Koch]

Hi Sean

The program ( i.e. Python interpreter just crashes ) and Windows shows a popup "Python.exe has stopped working." and offers means to attach Visual Studio debugger. I attached a debugger, but the callstack did not pin point to a specific issue, it just seems to have accessed memory that is not valid (anymore).

The strange think is that I have almost stripped down my program ( from several thousand lines ) to just a view widgets and it runs ok when I dont include this particular QAction and it crashes everytime I include it ?!

kind regards
Manuel

> Am 24.02.2014 um 20:06 schrieb Sean Fisk <sean at seanfisk.com>:
> 
> Hi Manuel,
> 
> I tried your code on [Mac OS 10.9 Mavericks, PySide 1.2.1, Python 2.7.5] and it worked fine. Would you mind posting the error that you get?
> 
> Thanks,
> 
> 
> --
> Sean Fisk
> 
> 
>> On Mon, Feb 24, 2014 at 11:39 AM, Manuel Koch <mko0815 at gmail.com> wrote:
>> Hi
>> 
>> I have a strange problem related to menu actions in my PySide application:
>> PySide 1.2.1, Python 2.7  32bit, Windows 7
>> 
>> My main window uses QAction to setup menu structure.
>> One of the menu items seems to cause a crash when the application is closed.
>> Following small snippet seems  to trigger app to crash immediately after hitting the close button of main window !?
>> 
>> I'm I doing something wrong when connecting signals/slots related to QAction ?
>> 
>> The code:
>> 
>> class MainWindow(QMainWindow):
>>     
>>     def __init__(self,parent=None):
>>         super(MainWindow,self).__init__(parent)
>>         .....
>>         menubar = self.menuBar()
>>         fooMenu = menubar.addMenu("&Foo")
>>         # commenting out the following two lines avoids my app to crash
>>         self._barAct = QAction("Bar", self, checkable=True, statusTip="Do bar", triggered=self._onBar)
>>         fooMenu.addAction(self._barAct)
>> 
>>     def _onBar(self):
>>         "Handle toggling of bar checkbox"
>>         print "_onBar"
>> 
>> 
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> 
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