I have a binary file like this :

0 S 0 0 0 0 0 0 0 0 

1 1 1 0 0 0 1 0 1 1 
1 0 1 1 1 1 1 0 0 1 
0 1 0 0 0 1 1 1 1 1 
1 1 1 1 0 1 0 1 1 0 
0 1 0 1 1 1 0 1 0 1 
1 1 0 0 1 1 1 0 1 1 
0 0 1 1 0 0 1 1 0 0 
0 1 1 1 1 1 1 1 1 1 

0 0 G 0 0 0 0 0 0 0 

The words “S” and “G” are represented as “Start” and “Goal”, also zeros are represented as walls and ones are open. I wanna create something like this
I’v generated some piece of code with PySide6 library for at least basics, but I don’t know why it doesn’t show up anything even that(I just wanna show up the walls first), I’m sure that I missed something but I don’t know what that is

import sys
from PySide6.QtWidgets import QApplication, QMainWindow, QGraphicsScene, QGraphicsView, QGraphicsRectItem
from PySide6.QtGui import QPen, QBrush
from PySide6.QtCore import Qt

class MazeWindow(QMainWindow):
    def __init__(self, maze):
        super().__init__()
        self.maze = maze
        self.initUI()

    def initUI(self):
        self.setWindowTitle('Maze Visualizer')
        self.setGeometry(100, 100, 600, 600)

        scene = QGraphicsScene()
        view = QGraphicsView(scene, self)
        view.setGeometry(0, 0, 600, 600)

        pen = QPen(Qt.black)
        brush = QBrush(Qt.red)

        cell_size = 50
        for i, row in enumerate(self.maze):
            for j, cell in enumerate(row):
                if cell == '0':
                    rect = QGraphicsRectItem(j * cell_size, i * cell_size, cell_size, cell_size)
                    rect.setPen(pen)
                    rect.setBrush(brush)
                    scene.addItem(rect)

        self.setCentralWidget(view)


def main():
    maze = [
    # 0 S 0 0 0 0 0 0 0 0 
    ['0', 'S', '0', '0', '0', '0', '0', '0', '0', '0'],
    # 1 1 1 0 0 0 1 0 1 1 
    ['1', '1', '1', '0', '0', '0', '1', '0', '1', '1'],
    # 1 0 1 1 1 1 1 0 0 1 
    ['1', '0', '1', '1', '1', '1', '1', '0', '0', '1'],
    # 0 1 0 0 0 1 1 1 1 1 
    ['0', '1', '0', '0', '0', '1', '1', '1', '1', '1'],
    # 1 1 1 1 0 1 0 1 1 0 
    ['1', '1', '1', '1', '0', '1', '0', '1', '1', '0'],
    # 0 1 0 1 1 1 0 1 0 1
    ['0', '1', '0', '1', '1', '1', '0', '1', '0', '1'],
    # 1 1 0 0 1 1 1 0 1 1
    ['1', '1', '0', '0', '1', '1', '1', '0', '1', '1'],
    # 0 0 1 1 0 0 1 1 0 0 
    ['0', '0', '1', '1', '0', '0', '1', '1', '0', '0'],
    # 0 1 1 1 1 1 1 1 1 1 
    ['0', '1', '1', '1', '1', '1', '1', '1', '1', '1'],
    # 0 0 G 0 0 0 0 0 0 0 
    ['0', '0', 'G', '0', '0', '0', '0', '0', '0', '0']
    ]

    app = QApplication(sys.argv)
    window = MazeWindow(maze)
    window.show()
    app.exec()


if __name__ == '__main__':
    main()

so grateful for your advises.