Laboratory, a Python port of GitHub's Scientist library for refactoring

In plain words

Laboratory is a Python library that helps developers refactor code safely by running experiments that compare old and new implementations side-by-side. It's a port of GitHub's Scientist tool, designed for Python 2.7 and 3.3 and later versions. The library lets teams test refactored code against existing code in production without affecting end users, providing confidence that changes work correctly before fully switching over.

written from the facts on this page · September 2026

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