[PyQt] Creating and showing dialog in other unit seems not to work

[michael h]

>
>
> I don't understand why it makes a difference when the dialog is created
> and shown in another file.
>
> System info:
> OS: Kubuntu 15.04 (amd64)
> Python: 2.7.9
> PyQt4: 4.10.4
>
> Best regards,
> Reinder
>
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>


Vincent is correct.

Correctly set the parent of the dialog (or alternatively keep a reference,
but parenting is the way to go IMO)

- michael
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