[PyQt] abstractitemmodel (from examples\quick\models\) is not running

[Daniel Krause]

Hi,

I have been looking into the qml-model-examles provided with pyqt
(Python34\Lib\site-packages\PyQt5\examples\quick\models\).
Objectlistmodel and Stringlistmodel I can run and view (the windows are
created).

But abstractitemmodel does not open any window
(Python34\Lib\site-packages\PyQt5\examples\quick\models\abstractitemmodel\abstractitemmodel.py).

I added some print()-statements, on my PC the script does not reach the
print(view.show) statement.

>>>
 RESTART:
C:\Python34\Lib\site-packages\PyQt5\examples\quick\models\abstractitemmodel\abstractitemmodel.py
AnimalModel
Animal
addAnimal
rowCount
rowCount
rowCount
view
context
view.source
rowCount
roleNames


Could someone else please check, if abstractitemmodel is running somewhere
else?
Any ideas, why it is not working on my machine?

Thanks
Daniel
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#!/usr/bin/env python


#############################################################################
##
## Copyright (C) 2013 Riverbank Computing Limited.
## Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
##
## This file is part of the examples of PyQt.
##
## $QT_BEGIN_LICENSE:BSD$
## You may use this file under the terms of the BSD license as follows:
##
## "Redistribution and use in source and binary forms, with or without
## modification, are permitted provided that the following conditions are
## met:
##   * Redistributions of source code must retain the above copyright
##     notice, this list of conditions and the following disclaimer.
##   * Redistributions in binary form must reproduce the above copyright
##     notice, this list of conditions and the following disclaimer in
##     the documentation and/or other materials provided with the
##     distribution.
##   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
##     of its contributors may be used to endorse or promote products derived
##     from this software without specific prior written permission.
##
##
## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
## $QT_END_LICENSE$
##
#############################################################################


from PyQt5.QtCore import QAbstractListModel, QModelIndex, Qt, QUrl, QVariant
from PyQt5.QtGui import QGuiApplication
from PyQt5.QtQuick import QQuickView

import abstractitemmodel_rc


class Animal(object):

    def __init__(self, type, size):
        print('Animal')
        self._type = type
        self._size = size

    def type(self):
        return self._type

    def size(self):
        return self._size


class AnimalModel(QAbstractListModel):

    TypeRole = Qt.UserRole + 1
    SizeRole = Qt.UserRole + 2

    _roles = {TypeRole: "type", SizeRole: "size"}

    def __init__(self, parent=None):
        super(AnimalModel, self).__init__(parent)
        print('AnimalModel')
        self._animals = []

    def addAnimal(self, animal):
        print('addAnimal')
        self.beginInsertRows(QModelIndex(), self.rowCount(), self.rowCount())
        self._animals.append(animal)
        self.endInsertRows()

    def rowCount(self, parent=QModelIndex()):
        print('rowCount')
        return len(self._animals)

    def data(self, index, role=Qt.DisplayRole):
        print('data')
        try:
            animal = self._animals[index.row()]
        except IndexError:
            return QVariant()

        if role == self.TypeRole:
            return animal.type()

        if role == self.SizeRole:
            return animal.size()

        return QVariant()

    def roleNames(self):
        print('roleNames')
        return self._roles


if __name__ == '__main__':
    import sys

    app = QGuiApplication(sys.argv)

    model = AnimalModel()
    model.addAnimal(Animal("Wolf", "Medium"))
    #model.addAnimal(Animal("Polar bear", "Large"))
    #model.addAnimal(Animal("Quoll", "Small"))

    print('view')
    view = QQuickView()
    view.setResizeMode(QQuickView.SizeRootObjectToView)
    print('context')
    ctxt = view.rootContext()
    ctxt.setContextProperty('myModel', model)
    print('view.source')
    view.setSource(QUrl('qrc:view.qml'))
    print('view.show')
    view.show()

    sys.exit(app.exec_())