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Christophe Bornet 1ae7fb7694 chore(langchain-classic): remove unused duckdb dependency (#33582) 
* The dependency is not used.
* It takes a long time to build in Python 3.14 as there are no prebuilt
binaries yet. This slows down CI a lot.

Co-authored-by: Mason Daugherty <mason@langchain.dev>
2025-10-17 18:45:30 -04:00
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langchain_classic
style(anthropic): use aliases for model names (#33590)
2025-10-17 21:40:22 +00:00
scripts
chore(langchain): add ruff rule BLE (#32868)
2025-09-09 18:52:53 +00:00
tests
chore(langchain-classic): remove unused duckdb dependency (#33582)
2025-10-17 18:45:30 -04:00
.dockerignore
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.flake8
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dev.Dockerfile
fix: devcontainer (#32260)
2025-07-27 20:24:16 -04:00
extended_testing_deps.txt
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LICENSE
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Makefile
chore(langchain): clean Makefile (#33335)
2025-10-07 10:48:47 -04:00
pyproject.toml
chore(langchain-classic): remove unused duckdb dependency (#33582)
2025-10-17 18:45:30 -04:00
README.md
docs: update package READMEs (#33488)
2025-10-15 10:49:35 -04:00
uv.lock
chore(langchain-classic): remove unused duckdb dependency (#33582)
2025-10-17 18:45:30 -04:00

README.md

🦜️🔗 LangChain Classic

PyPI - Version PyPI - License PyPI - Downloads Twitter

Looking for the JS/TS version? Check out LangChain.js.

To help you ship LangChain apps to production faster, check out LangSmith. LangSmith is a unified developer platform for building, testing, and monitoring LLM applications.

Quick Install

pip install langchain-classic

🤔 What is this?

Legacy chains, langchain-community re-exports, indexing API, deprecated functionality, and more.

In most cases, you should be using the main langchain package.

📖 Documentation

For full documentation, see the API reference.

📕 Releases & Versioning

See our Releases and Versioning policies.

💁 Contributing

As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of a new feature, improved infrastructure, or better documentation.

For detailed information on how to contribute, see the Contributing Guide.

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