In some environments (this happens rarely), it may also be necessary to add the OpenFHE libraries path to LD_LIBRARY_PATH. If OpenFHE is not installed in the default location, then both PYTHONPATH and ...

How do I change the Path in Windows Command Prompt? A command line on your Windows Terminal (Command Prompt) can help you add a Path to your Path environment variable.

I think it would be useful to add Python stubs to GDAL that provide static information about the expected data types. These would help to identify incorrect or unintended usage of GDAL.