7 Commits (9b3a025f9c806a6f8a00030c7058c689536ae5a0)

Author	SHA1	Message	Date
Michał Krassowski	710197e18c	community[patch]: restore compatibility with SQLAlchemy 1.x (#22546) ... - **Description:** Restores compatibility with SQLAlchemy 1.4.x that was broken since #18992 and adds a test run for this version on CI (only for Python 3.11) - **Issue:** fixes #19681 - **Dependencies:** None - **Twitter handle:** `@krassowski_m` --------- Co-authored-by: Erick Friis <erick@langchain.dev>	3 months ago
Eugene Yurtsev	25fbe356b4	community[patch]: upgrade to recent version of mypy (#21616) ... This PR upgrades community to a recent version of mypy. It inserts type: ignore on all existing failures.	4 months ago
Philippe PRADOS	7be68228da	community[patch]: Make sql record manager fully compatible with async (#20735) ... The `_amake_session()` method does not allow modifying the `self.session_factory` with anything other than `async_sessionmaker`. This prohibits advanced uses of `index()`. In a RAG architecture, it is necessary to import document chunks. To keep track of the links between chunks and documents, we can use the `index()` API. This API proposes to use an SQL-type record manager. In a classic use case, using `SQLRecordManager` and a vector database, it is impossible to guarantee the consistency of the import. Indeed, if a crash occurs during the import (problem with the network, ...) there is an inconsistency between the SQL database and the vector database. With the [PR](https://github.com/langchain-ai/langchain-postgres/pull/32) we are proposing for `langchain-postgres`, it is now possible to guarantee the consistency of the import of chunks into a vector database. It's possible only if the outer session is built with the connection. ```python def main(): db_url = "postgresql+psycopg://postgres:password_postgres@localhost:5432/" engine = create_engine(db_url, echo=True) embeddings = FakeEmbeddings() pgvector:VectorStore = PGVector( embeddings=embeddings, connection=engine, ) record_manager = SQLRecordManager( namespace="namespace", engine=engine, ) record_manager.create_schema() with engine.connect() as connection: session_maker = scoped_session(sessionmaker(bind=connection)) # NOTE: Update session_factories record_manager.session_factory = session_maker pgvector.session_maker = session_maker with connection.begin(): loader = CSVLoader( "data/faq/faq.csv", source_column="source", autodetect_encoding=True, ) result = index( source_id_key="source", docs_source=loader.load()[:1], cleanup="incremental", vector_store=pgvector, record_manager=record_manager, ) print(result) ``` The same thing is possible asynchronously, but a bug in `sql_record_manager.py` in `_amake_session()` must first be fixed. ```python async def _amake_session(self) -> AsyncGenerator[AsyncSession, None]: """Create a session and close it after use.""" # FIXME: REMOVE if not isinstance(self.session_factory, async_sessionmaker):~~ if not isinstance(self.engine, AsyncEngine): raise AssertionError("This method is not supported for sync engines.") async with self.session_factory() as session: yield session ``` Then, it is possible to do the same thing asynchronously: ```python async def main(): db_url = "postgresql+psycopg://postgres:password_postgres@localhost:5432/" engine = create_async_engine(db_url, echo=True) embeddings = FakeEmbeddings() pgvector:VectorStore = PGVector( embeddings=embeddings, connection=engine, ) record_manager = SQLRecordManager( namespace="namespace", engine=engine, async_mode=True, ) await record_manager.acreate_schema() async with engine.connect() as connection: session_maker = async_scoped_session( async_sessionmaker(bind=connection), scopefunc=current_task) record_manager.session_factory = session_maker pgvector.session_maker = session_maker async with connection.begin(): loader = CSVLoader( "data/faq/faq.csv", source_column="source", autodetect_encoding=True, ) result = await aindex( source_id_key="source", docs_source=loader.load()[:1], cleanup="incremental", vector_store=pgvector, record_manager=record_manager, ) print(result) asyncio.run(main()) ``` --------- Signed-off-by: Rahul Tripathi <rauhl.psit.ec@gmail.com> Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com> Co-authored-by: Sean <sean@upstage.ai> Co-authored-by: JuHyung-Son <sonju0427@gmail.com> Co-authored-by: Erick Friis <erick@langchain.dev> Co-authored-by: YISH <mokeyish@hotmail.com> Co-authored-by: Bagatur <baskaryan@gmail.com> Co-authored-by: Jason_Chen <820542443@qq.com> Co-authored-by: Joan Fontanals <joan.fontanals.martinez@jina.ai> Co-authored-by: Pavlo Paliychuk <pavlo.paliychuk.ca@gmail.com> Co-authored-by: fzowl <160063452+fzowl@users.noreply.github.com> Co-authored-by: samanhappy <samanhappy@gmail.com> Co-authored-by: Lei Zhang <zhanglei@apache.org> Co-authored-by: Tomaz Bratanic <bratanic.tomaz@gmail.com> Co-authored-by: merdan <48309329+merdan-9@users.noreply.github.com> Co-authored-by: ccurme <chester.curme@gmail.com> Co-authored-by: Andres Algaba <andresalgaba@gmail.com> Co-authored-by: davidefantiniIntel <115252273+davidefantiniIntel@users.noreply.github.com> Co-authored-by: Jingpan Xiong <71321890+klaus-xiong@users.noreply.github.com> Co-authored-by: kaka <kaka@zbyte-inc.cloud> Co-authored-by: jingsi <jingsi@leadincloud.com> Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com> Co-authored-by: Rahul Triptahi <rahul.psit.ec@gmail.com> Co-authored-by: Rahul Tripathi <rauhl.psit.ec@gmail.com> Co-authored-by: Shengsheng Huang <shannie.huang@gmail.com> Co-authored-by: Michael Schock <mjschock@users.noreply.github.com> Co-authored-by: Anish Chakraborty <anish749@users.noreply.github.com> Co-authored-by: am-kinetica <85610855+am-kinetica@users.noreply.github.com> Co-authored-by: Dristy Srivastava <58721149+dristysrivastava@users.noreply.github.com> Co-authored-by: Matt <matthew.gotteiner@microsoft.com> Co-authored-by: William FH <13333726+hinthornw@users.noreply.github.com>	5 months ago
Leonid Ganeline	7cf2d2759d	community[patch]: docstrings update (#20301) ... Added missed docstrings. Format docstings to the consistent form.	5 months ago
2jimoo	7fc903464a	community: Add document manager and mongo document manager (#17320) ... - **Description:** - Add DocumentManager class, which is a nosql record manager. - In order to use index and aindex in libs/langchain/langchain/indexes/_api.py, DocumentManager inherits RecordManager. - Also I added the MongoDB implementation of Document Manager too. - **Dependencies:** pymongo, motor <!-- Thank you for contributing to LangChain! Please title your PR "<package>: <description>", where <package> is whichever of langchain, community, core, experimental, etc. is being modified. Replace this entire comment with: - **Description:** Add DocumentManager class, which is a no sql record manager. To use index method and aindex method in indexes._api.py, Document Manager inherits RecordManager.Add the MongoDB implementation of Document Manager. - **Dependencies:** pymongo, motor Please make sure your PR is passing linting and testing before submitting. Run `make format`, `make lint` and `make test` from the root of the package you've modified to check this locally. See contribution guidelines for more information on how to write/run tests, lint, etc: https://python.langchain.com/docs/contributing/ If you're adding a new integration, please include: 1. a test for the integration, preferably unit tests that do not rely on network access, 2. an example notebook showing its use. It lives in `docs/docs/integrations` directory. If no one reviews your PR within a few days, please @-mention one of @baskaryan, @eyurtsev, @hwchase17. --> --------- Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>	7 months ago
Leonid Ganeline	ed0b7c3b72	docs: added `community` modules descriptions (#17827) ... API Reference: Several `community` modules (like [adapter](https://api.python.langchain.com/en/latest/community_api_reference.html#module-langchain_community.adapters) module) are missing descriptions. It happens when langchain was split to the core, langchain and community packages. - Copied module descriptions from other packages - Fixed several descriptions to the consistent format.	7 months ago
Bagatur	ed58eeb9c5	community[major], core[patch], langchain[patch], experimental[patch]: Create langchain-community (#14463) ... Moved the following modules to new package langchain-community in a backwards compatible fashion: ``` mv langchain/langchain/adapters community/langchain_community mv langchain/langchain/callbacks community/langchain_community/callbacks mv langchain/langchain/chat_loaders community/langchain_community mv langchain/langchain/chat_models community/langchain_community mv langchain/langchain/document_loaders community/langchain_community mv langchain/langchain/docstore community/langchain_community mv langchain/langchain/document_transformers community/langchain_community mv langchain/langchain/embeddings community/langchain_community mv langchain/langchain/graphs community/langchain_community mv langchain/langchain/llms community/langchain_community mv langchain/langchain/memory/chat_message_histories community/langchain_community mv langchain/langchain/retrievers community/langchain_community mv langchain/langchain/storage community/langchain_community mv langchain/langchain/tools community/langchain_community mv langchain/langchain/utilities community/langchain_community mv langchain/langchain/vectorstores community/langchain_community mv langchain/langchain/agents/agent_toolkits community/langchain_community mv langchain/langchain/cache.py community/langchain_community mv langchain/langchain/adapters community/langchain_community mv langchain/langchain/callbacks community/langchain_community/callbacks mv langchain/langchain/chat_loaders community/langchain_community mv langchain/langchain/chat_models community/langchain_community mv langchain/langchain/document_loaders community/langchain_community mv langchain/langchain/docstore community/langchain_community mv langchain/langchain/document_transformers community/langchain_community mv langchain/langchain/embeddings community/langchain_community mv langchain/langchain/graphs community/langchain_community mv langchain/langchain/llms community/langchain_community mv langchain/langchain/memory/chat_message_histories community/langchain_community mv langchain/langchain/retrievers community/langchain_community mv langchain/langchain/storage community/langchain_community mv langchain/langchain/tools community/langchain_community mv langchain/langchain/utilities community/langchain_community mv langchain/langchain/vectorstores community/langchain_community mv langchain/langchain/agents/agent_toolkits community/langchain_community mv langchain/langchain/cache.py community/langchain_community ``` Moved the following to core ``` mv langchain/langchain/utils/json_schema.py core/langchain_core/utils mv langchain/langchain/utils/html.py core/langchain_core/utils mv langchain/langchain/utils/strings.py core/langchain_core/utils cat langchain/langchain/utils/env.py >> core/langchain_core/utils/env.py rm langchain/langchain/utils/env.py ``` See .scripts/community_split/script_integrations.sh for all changes	10 months ago