[PyQt] QDialog Form Show Possible Race Condition?

Andreas Pakulat apaku at gmx.de
Wed Apr 11 17:36:03 BST 2012

On 11.04.12 12:26:09, John V. Busch wrote:
> I have a bug that only occurs when I am NOT debugging.
> I am very new to pyQT, so please forgive if this is something obvious.
> The following code is called from another QDialog class upon a particular
> button click.
>             newServiceForm = QDialog()
>             newServiceUI = Ui_Dialog()
>             newServiceUI.setupUi(newServiceForm)
> newServiceUI.installScriptButton.clicked.connect(self.installScriptButton_clicked)
>             newServiceForm.show()
> If I set a breakpoint anywhere in this method the newServiceForm displays
> with no issue; however if I allow the application to execute naturally, the
> form never displays.
> I am assuming there is some race condition here internal to QT that is
> being created likely due to my misuse.

Once you provide a complete example we might be able to help you. The
code above has no obvious errors, but it might well be that you're using
it incorrectly.


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