pytoqml1#

(You can also check this code in the repository)

Download this example

main.py

# Copyright (C) 2022 The Qt Company Ltd.
# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

import os
from pathlib import Path
import sys
from PySide6.QtCore import QTimer, QUrl
from PySide6.QtGui import QGuiApplication
from PySide6.QtQuick import QQuickView

if __name__ == '__main__':
    app = QGuiApplication(sys.argv)

    timer = QTimer()
    timer.start(2000)

    view = QQuickView()
    qml_file = os.fspath(Path(__file__).resolve().parent / 'view.qml')
    view.setSource(QUrl.fromLocalFile(qml_file))
    if view.status() == QQuickView.Error:
        sys.exit(-1)
    root = view.rootObject()

    timer.timeout.connect(root.updateRotater)

    view.show()
    res = app.exec()
    # Deleting the view before it goes out of scope is required to make sure all child QML instances
    # are destroyed in the correct order.
    del view
    sys.exit(res)

view.qml

// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause

import QtQuick

Rectangle {
    id: page

    function updateRotater() {
        rotater.angle = rotater.angle + 45
    }

    width: 500; height: 200
    color: "lightgray"

    Rectangle {
        id: rotater
        property real angle : 0
        x: 240
        width: 100; height: 10
        color: "black"
        y: 95

        transform: Rotation {
            origin.x: 10; origin.y: 5
            angle: rotater.angle
            Behavior on angle {
                SpringAnimation {
                    spring: 1.4
                    damping: .05
                }
            }
        }
    }

}