[Question] why is simulation_app.close() in if __name__ == "__main__" ?

[VladimirFokow]

Question

AppLauncher initialization is needed at the start of the file for further imports to work.
However, the simulation_app.close() is written in if __name__ == "__main__".

What is the purpose of closing it only in if __name__ == "__main__" but not outside of it?

For example, in create_empty.py

# launch omniverse app
app_launcher = AppLauncher(args_cli)
simulation_app = app_launcher.app

if __name__ == "__main__":
    # run the main function
    main()
    # close sim app
    simulation_app.close()

I recently opened #308, where I'm concerned about ensuring that the simulation app is closed.

The purpose of if __name__ == "__main__" is to avoid running its code if the script is imported.
So currently, if the script is imported, the app will be initialized, but will not be closed, correct?
Is this intended?

Why not wrap the app_launcher = AppLauncher(args_cli) into a with context manager? (to ensure that it is closed automatically)

Task completion

• If this should be done - it should be done in all files (everywhere)