Metadata-Version: 2.4
Name: langchain-classic
Version: 1.0.1
Summary: Building applications with LLMs through composability
Project-URL: Homepage, https://docs.langchain.com/
Project-URL: Documentation, https://reference.langchain.com/python/langchain_classic/
Project-URL: Source, https://github.com/langchain-ai/langchain/tree/master/libs/langchain
Project-URL: Changelog, https://github.com/langchain-ai/langchain/releases?q=tag%3A%22langchain-classic%3D%3D1%22
Project-URL: Twitter, https://x.com/LangChainAI
Project-URL: Slack, https://www.langchain.com/join-community
Project-URL: Reddit, https://www.reddit.com/r/LangChain/
License: MIT
License-File: LICENSE
Requires-Python: <4.0.0,>=3.10.0
Requires-Dist: async-timeout<5.0.0,>=4.0.0; python_version < '3.11'
Requires-Dist: langchain-core<2.0.0,>=1.2.5
Requires-Dist: langchain-text-splitters<2.0.0,>=1.1.0
Requires-Dist: langsmith<1.0.0,>=0.1.17
Requires-Dist: pydantic<3.0.0,>=2.7.4
Requires-Dist: pyyaml<7.0.0,>=5.3.0
Requires-Dist: requests<3.0.0,>=2.0.0
Requires-Dist: sqlalchemy<3.0.0,>=1.4.0
Provides-Extra: anthropic
Requires-Dist: langchain-anthropic; extra == 'anthropic'
Provides-Extra: aws
Requires-Dist: langchain-aws; extra == 'aws'
Provides-Extra: deepseek
Requires-Dist: langchain-deepseek; extra == 'deepseek'
Provides-Extra: fireworks
Requires-Dist: langchain-fireworks; extra == 'fireworks'
Provides-Extra: google-genai
Requires-Dist: langchain-google-genai; extra == 'google-genai'
Provides-Extra: google-vertexai
Requires-Dist: langchain-google-vertexai; extra == 'google-vertexai'
Provides-Extra: groq
Requires-Dist: langchain-groq; extra == 'groq'
Provides-Extra: huggingface
Requires-Dist: langchain-huggingface; extra == 'huggingface'
Provides-Extra: mistralai
Requires-Dist: langchain-mistralai; extra == 'mistralai'
Provides-Extra: ollama
Requires-Dist: langchain-ollama; extra == 'ollama'
Provides-Extra: openai
Requires-Dist: langchain-openai; extra == 'openai'
Provides-Extra: perplexity
Requires-Dist: langchain-perplexity; extra == 'perplexity'
Provides-Extra: together
Requires-Dist: langchain-together; extra == 'together'
Provides-Extra: xai
Requires-Dist: langchain-xai; extra == 'xai'
Description-Content-Type: text/markdown

# 🦜️🔗 LangChain Classic

[![PyPI - Version](https://img.shields.io/pypi/v/langchain-classic?label=%20)](https://pypi.org/project/langchain-classic/#history)
[![PyPI - License](https://img.shields.io/pypi/l/langchain-classic)](https://opensource.org/licenses/MIT)
[![PyPI - Downloads](https://img.shields.io/pepy/dt/langchain-classic)](https://pypistats.org/packages/langchain-classic)
[![Twitter](https://img.shields.io/twitter/url/https/twitter.com/langchainai.svg?style=social&label=Follow%20%40LangChainAI)](https://twitter.com/langchainai)

Looking for the JS/TS version? Check out [LangChain.js](https://github.com/langchain-ai/langchainjs).

To help you ship LangChain apps to production faster, check out [LangSmith](https://smith.langchain.com).
[LangSmith](https://smith.langchain.com) is a unified developer platform for building, testing, and monitoring LLM applications.

## Quick Install

```bash
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`](https://pypi.org/project/langchain/) package.

## 📖 Documentation

For full documentation, see the [API reference](https://reference.langchain.com/python/langchain_classic). For conceptual guides, tutorials, and examples on using LangChain, see the [LangChain Docs](https://docs.langchain.com/oss/python/langchain/overview).

## 📕 Releases & Versioning

See our [Releases](https://docs.langchain.com/oss/python/release-policy) and [Versioning](https://docs.langchain.com/oss/python/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](https://docs.langchain.com/oss/python/contributing/overview).