i have error ‘NoneType’ has no attribute ‘shape’, i assume its because camera connection.

BUT, when i check on default live preview IP Camera everything is ok. the error is only between python and camera.

here my example code

while True:
    try:
        ret, frame = capture.read()

        frame = camera.get_frame(frame, id_cam, 0)
        if frame is not None:
            if hasattr(frame, 'shape') and frame.shape is not None:
                update_status_camera(id_cam, 1, 1)
                # Convert frame to bytes
                frame_bytes = cv2.imencode('.jpg', frame)[1].tobytes()
                # Include ratio in the response as bytes

                yield (b'--framern'
                       b'Content-Type: image/jpegrnrn' + frame_bytes + b'rn')
            else:
                pass
        else:
            pass
    except Exception as e:
        update_status_camera(id_cam, 1, 0)
       
        print(f"{device_code} Terjadi kesalahan saat mengambil frame:", e)
        
        yield None

when connection is lost, it will running to exception.

how to solve this problem?