PySide2 WebEngine not working in QML (Windows)

> py -3 main.py
QQmlApplicationEngine failed to load component
file:///D:/Projekte/Python3-Qt/test/web.qml:3 module "QtWebEngine" is not installed

from PySide2.QtWidgets import QApplication
from PySide2.QtQml import QQmlApplicationEngine


def main():
    app = QApplication([])
    engine = QQmlApplicationEngine()
    engine.load('web.qml')
    app.exec_()


if __name__ == '__main__':
    main()

import QtQuick 2.0
import QtQuick.Window 2.0
import QtWebEngine 1.0

Window {
    width: 1024
    height: 750
    visible: true
    WebEngineView {
        anchors.fill: parent
        url: "http://www.qt.io"
    }
}