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Stdout is not captured inside Jupyter notebook due to buffering #372

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lesteve opened this issue Oct 10, 2022 · 0 comments

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lesteve commented Oct 10, 2022 •

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In a scikit-learn context, the GridSearchCV does not produce output to show its progress:
scikit-learn/scikit-learn#22849

This seems like an issue only for the loky backend, there is a reproducer with joblib here:
scikit-learn/scikit-learn#22849 (comment)

Haven't taken the time to put together a snippet with only loky but I assume this is not that hard.

A work-around is to force the stdout/stderr to be unbuffered e.g. by setting PYTHONUNBUFFERED=1

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lesteve mentioned this issue

Verbosity option is not working in GridSearchCV (Jupyter notebook) scikit-learn/scikit-learn#22849

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