Make ray imports in nn_utils optional - #39
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rogerwwww merged 1 commit intoSep 16, 2026
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nn_utils/init.py star-imports tune_utils and base_hyperopt, which both import Ray. Because ms_pred.common imports nn_utils, Ray is needed to import almost anything in the package, including ICEBERG for inference, even though only the hyperparameter search uses it.
This change skips those two imports when Ray isn't installed. Any other import error is still raised as before, and nothing changes if Ray is installed.
We tested this in an environment without Ray: import ms_pred.nn_utils fails on main and works with this change.