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List:       pykde
Subject:    [PyQt] Mysterious type error
From:       Gottfried_Müller <gottfried.mueller () gmx ! de>
Date:       2017-05-13 15:16:48
Message-ID: 7b32028c-cd50-0c14-f8bd-3a2fbce5200c () gmx ! de
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I have a mysterious type error and I can't explain it.
In a QListView widget I coded things like this:

class MyWidget(QListView):
    data = pyqtSignal(dict)
    def __init__(...)
       ...
       self.clicked.connect(self.viewClicked)
       ...

    def viewClicked(self, modelIdx):
         viewData = self.model().data(modelIdx, Qt.UserRole)
         print('viewDataType', type(viewData))
         self.data.emit(viewData)
         return

My program crashed with following messages:

viewDataType <class 'dict'>
self.data.emit(viewData)
TypeError:  MyWidget.data[dict].emit(): argument 1 has unexpected type 
'dict'

This kind of error I have in one of my modules only. In other modules 
these code sequences work. I have no idea what is the matter.

Gottfried

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