Files
langchain/libs
Rudra Tiwari 75e237643a perf(core): move origin type map to module level in function_calling.py (#34481)
Moves `_ORIGIN_MAP` dict from inside `_py_38_safe_origin()` to module
level constant. This avoids dict allocation on every function call,
reducing garbage collection pressure during frequent tool conversions.

The function is called during typed dict to pydantic model conversion
which happens during tool binding and invocation - a hot path in
LangChain.

**Testing:** `make lint` passes

---------

Co-authored-by: Mason Daugherty <mason@langchain.dev>
Co-authored-by: Mason Daugherty <github@mdrxy.com>
2025-12-25 21:29:31 -06:00
..

Packages

Important

View all LangChain integrations packages

This repository is structured as a monorepo, with various packages located in this libs/ directory. Packages to note in this directory include:

core/             # Core primitives and abstractions for langchain
langchain/        # langchain-classic
langchain_v1/     # langchain
partners/         # Certain third-party providers integrations (see below)
standard-tests/   # Standardized tests for integrations
text-splitters/   # Text splitter utilities

(Each package contains its own README.md file with specific details about that package.)

Integrations (partners/)

The partners/ directory contains a small subset of third-party provider integrations that are maintained directly by the LangChain team. These include, but are not limited to:

Most integrations have been moved to their own repositories for improved versioning, dependency management, collaboration, and testing. This includes packages from popular providers such as Google and AWS. Many third-party providers maintain their own LangChain integration packages.

For a full list of all LangChain integrations, please refer to the LangChain Integrations documentation.