(You can also check this code in the repository)

import Charts 1.0
import QtQuick 2.0

Item {
    width: 300; height: 200

    PieChart {
        id: chart
        anchors.centerIn: parent
        width: 100; height: 100

        pieSlice: PieSlice {
            anchors.fill: parent
            color: "red"

    Component.onCompleted: console.log("The pie is colored " + chart.pieSlice.color)
"""PySide6 port of the qml/tutorials/extending-qml/chapter4-customPropertyTypes example from Qt v5.x"""

import os
from pathlib import Path
import sys

from PySide6.QtCore import Property, QUrl
from PySide6.QtGui import QGuiApplication, QPen, QPainter, QColor
from PySide6.QtQml import qmlRegisterType
from PySide6.QtQuick import QQuickPaintedItem, QQuickView, QQuickItem

class PieSlice (QQuickPaintedItem):

    def __init__(self, parent=None):
        QQuickPaintedItem.__init__(self, parent)
        self._color = QColor()

    def color(self):
        return self._color

    def color(self, value):
        self._color = value

    def paint(self, painter):
        pen = QPen(self._color, 2)
        painter.setRenderHints(QPainter.Antialiasing, True)
        painter.drawPie(self.boundingRect().adjusted(1, 1, -1, -1), 90 * 16, 290 * 16)

class PieChart (QQuickItem):
    def __init__(self, parent=None):
        QQuickItem.__init__(self, parent)
        self._name = None
        self._pieSlice = None

    def name(self):
        return self._name

    def name(self, value):
        self._name = value

    def pieSlice(self):
        return self._pieSlice

    def pieSlice(self, value):
        self._pieSlice = value

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

    qmlRegisterType(PieChart, 'Charts', 1, 0, 'PieChart')
    qmlRegisterType(PieSlice, "Charts", 1, 0, "PieSlice")

    view = QQuickView()
    qml_file = os.fspath(Path(__file__).resolve().parent / 'app.qml')
    if view.status() == QQuickView.Error:
    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