I am currently launching the camera in ROS Node, and also was trying to get Left camera image using pyzed but was not able to as it keeps complaining about camera not open, to me it makes sense to not open the camera port again in the script, but please advise as I tried that and it did not work either.
Please update documentation for Python Cython requirements here below (Cython =>3.0.0 and for me Numpy 1.26 worked the best without complaining about errors.