The latest sklearn doesn't support Python2.7

[4B5F5F4B]

Scikit-learn 0.20 was the last version to support Python2.7，so I think we'd better to use this version in setup.py like this

install_requires=['elementals', 'sark', 'pydocstyle', 'flake8', 'click', 'scikit-learn==0.20.0'],

[echin20]

Did that actually work for you? I stopped at scipy and said it needed Python >= 3.5

[4B5F5F4B]

Did that actually work for you? I stopped at scipy and said it needed Python >= 3.5

I installed scikit-learn manually like this:

pip install scikit-learn==0.20.0

[Eyal Itkin]

Probably worked for me since I installed it some months ago. Will check your suggested fix.