516d74b6df
Replace direct `__annotations__` access with `get_type_hints()` in `_convert_any_typed_dicts_to_pydantic` to handle [PEP 649](https://peps.python.org/pep-0649/) deferred annotations in Python 3.14: > [`Changed in version 3.14: Annotations are now lazily evaluated by default`](https://docs.python.org/3/reference/compound_stmts.html#annotations) Before: ```python class MyTool(TypedDict): name: str MyTool.__annotations__ # {'name': 'str'} - string, not type issubclass('str', ...) # TypeError: arg 1 must be a class ``` After: ```python get_type_hints(MyTool) # {'name': <class 'str'>} - actual type ``` Fixes #34291
Packages
Important
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.