[PyQt] Custom Widgets and __pyqtSignals__

Paul Giannaros paul at giannaros.org
Sun Aug 24 12:43:33 BST 2008


On Sun, Aug 24, 2008 at 12:03 PM, himork <himork at kth.se> wrote:
>
> Hi, I am newbie in Python and pyQt, I hope this question is not too silly.
>
> I am trying to write a custom widget in python/pyqt to be used inside
> QtDesigner. Everything seems to work fine (i followed the tutorials and
> examples available), except for the signals: when I use __pyqtSignals__ =
> ("mysignal(double)"), the widget ends up having one signal for each letter
> of "mysignal(double)", parenthesis included, like it cannot understand that
> this is a string. And if I had 2 signals, designer crashes when I try to add
> my custom widget.

I think you may want a comma to turn that string into a tuple, e.g
__pyqtSignals__ = ("mysignal(double)",)

Python will just think that your brackets are there for the sake of
precedence modification otherwise.

>
> This is probably just a stupid problem, but is driving me crazy...any
> suggestion?
> Thank you!
> --
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>
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