Collecting threadpoolctl>=2.0.0 (from scikit-learn==0.23.2->pycaret==2.3.10) Using cached threadpoolctl-3.1.0-py3-none-any.whl (14 kB) Requirement already satisfied: six>=1.9.0 in ...

Can directly install pygame 2.5.2 via pip, but packages with enforced dependencies on 2.1.0, 2.3.0 etc fail (e.g. elegantrl 0.3.6). So it's quite a persvasive issue.