debut painter pour faire des arcs

from math import sqrt, cos, pi, sin

from PyQt5.QtGui import QFont, QPen, QColor

from PyQt5.QtGui import QFont, QPen, QColor, QPainterPath

from PyQt5.QtWidgets import *

from PyQt5.QtCore import Qt

from PyQt5.QtCore import Qt, QPointF

from model.GameEnum import GameEnum

from model.node import Leaf, BinaryNode

        #self.pen = QPen(QColor(21, 67, 96))

        pen = QPen()

        pen.setWidth(3)

        line = QGraphicsLineItem(beginX, beginY, endX, endY)

        """line = QGraphicsLineItem(beginX, beginY, endX, endY)

        line.setPen(pen)

        self.addToGroup(line)

        self.addToGroup(line)"""

        path = QGraphicsPathItem()

        painterPath = QPainterPath(QPointF(beginX, beginY))

        painterPath.arcTo(beginX, beginY, endX, endY, 0, 0)

        path.setPath(painterPath)

        path.setPen(pen)

        self.addToGroup(path)

        self.connect()

    def connect(self):