If you work with strings in your Python scripts and you're writing obscure logic to process them, then you need to look into regex in Python. It lets you describe patterns instead of writing ...

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Compare prompt variations — run the same dataset through different prompts and see which performs better. Benchmark models — evaluate GPT-4o vs GPT-4o-mini vs Claude on the same test set. Test RAG ...

This repository documents and implements the end-to-end release workflow used by the LangChain Python monorepo. It covers every stage of taking a package from "ready to release" to "published on PyPI, ...