Sets data at *index* to *value* in underlying data structure

        See :qtdoc:`QAbstractItemModel<QAbstractItemModel.setData>`, 
        and :qtdoc:`subclassing<qabstractitemmodel.subclassing>`

def setData(self, index, value, role):
        """Sets data at *index* to *value* in underlying data structure

        See :qtdoc:`QAbstractItemModel<QAbstractItemModel.setData>`, 
        and :qtdoc:`subclassing<qabstractitemmodel.subclassing>`
        """
        if role == QtCore.Qt.EditRole:
            if isinstance(value, QtCore.QVariant):
                value = value.toPyObject()
            if index.column() == 0:
                test = self._testmodel.test(index.row())
                test.setUserTag(str(value))
                return True
            if index.column() == 2:
                test = self._testmodel.test(index.row())
                test.setRepCount(value)
                return True
        return False