missing import statements in model.py

[anilbey]

Hello @cumbof ,

Running static code analysis detected missing import statements in the following functions: Model::auto_tune, Model::stepwise_regression and Model::cross_val_predict.

> ruff . --ignore=E501

hdlib/model.py:672:18: F821 Undefined name `os`
hdlib/model.py:785:18: F821 Undefined name `os`
hdlib/model.py:994:18: F821 Undefined name `os`

Could you make sure the tests in the test module are covering these 3 functions? Thanks

This issue is part of the openjournals/joss-reviews#5704 review.

[cumbof]

Hi @anilbey, thanks for pointing this out.

I fixed the missing import in hdlib.model and I will add a few additional unit tests ASAP.
I'll keep you updated here. Thanks

[cumbof]

@anilbey I've just added a few more unit tests that cover also Model::stepwise_regression and Model::auto_tune.
Model::cross_val_predict was already covered by a unit test.

Feel free to close the issue if you think everything is ok now.
Thanks!

[anilbey]

Brilliant, thanks @cumbof