I have the following try-finally block borrowed from the demo box_dimensioner_multicam (https://github.com/IntelRealSense/librealsense/blob/master/wrappers/python/examples/box_dimensioner_multicam/box_dimensioner_multicam_demo.py) in my own personal project. My goal is to have the user calibrate the camera with the printed checkerboard before opening the window. However, I get an error saying that the 'Device or resource is busy'. I know the problem is with the try-finally block, but I don't know why it's causing an issue. I am calling run_demo() in my own file.
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