Notebooks are designed for flexible, ad hoc Python development. This presents a challenge to reproducibility. Cells can be run in any order and modified at any time. How can you be certain that cell output accurately reflects the current source? Even with careful discipline, you can’t be sure that a result is consistent with the code.

Guild AI — a light weight, open source experiment tracking tool — addresses this using a simple scheme:

Execute a copy of the notebook from top-to-bottom as an experiment artifact.

The result is a notebook whose output accurately reflects its source code at the…

Garrett Smith

Founder Guild AI

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