langchain

Commit Graph

Author	SHA1	Message	Date
Leonid Ganeline	716a316654	core: docstrings `indexing` (#23785 ) Added missed docstrings. Formatted docstrings to the consistent form.	3 months ago
Leonid Ganeline	30fdc2dbe7	core: docstrings `messages` (#23788 ) Added missed docstrings. Formatted docstrings to the consistent form.	3 months ago
Bagatur	7a3d8e5a99	core[patch]: Release 0.2.11 (#23780 )	3 months ago
Bagatur	d677dadf5f	core[patch]: mark RemoveMessage beta (#23656 )	3 months ago
SN	acc457f645	core[patch]: fix nested sections for mustache templating (#23747 ) The prompt template variable detection only worked for singly-nested sections because we just kept track of whether we were in a section and then set that to false as soon as we encountered an end block. i.e. the following: ``` {{#outerSection}} {{variableThatShouldntShowUp}} {{#nestedSection}} {{nestedVal}} {{/nestedSection}} {{anotherVariableThatShouldntShowUp}} {{/outerSection}} ``` Would yield `['outerSection', 'anotherVariableThatShouldntShowUp']` as input_variables (whereas it should just yield `['outerSection']`). This fixes that by keeping track of the current depth and using a stack.	3 months ago
Eugene Yurtsev	ebcee4f610	core[patch]: Add versionadded to get_by_ids (#23728 )	3 months ago
Eugene Yurtsev	e800f6bb57	core[minor]: Create BaseMedia object (#23639 ) This PR implements a BaseContent object from which Document and Blob objects will inherit proposed here: https://github.com/langchain-ai/langchain/pull/23544 Alternative: Create a base object that only has an identifier and no metadata. For now decided against it, since that refactor can be done at a later time. It also feels a bit odd since our IDs are optional at the moment. --------- Co-authored-by: Erick Friis <erick@langchain.dev>	3 months ago
Nuno Campos	b36e95caa9	core[patch]: use async messages where possible (#23718 ) Fix #23716 Thank you for contributing to LangChain! - [ ] PR title: "package: description" - Where "package" is whichever of langchain, community, core, experimental, etc. is being modified. Use "docs: ..." for purely docs changes, "templates: ..." for template changes, "infra: ..." for CI changes. - Example: "community: add foobar LLM" - [ ] PR message: *Delete this entire checklist* and replace with - Description: a description of the change - Issue: the issue # it fixes, if applicable - Dependencies: any dependencies required for this change - Twitter handle: if your PR gets announced, and you'd like a mention, we'll gladly shout you out! - [ ] Add tests and docs: 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. - [ ] Lint and test: Run `make format`, `make lint` and `make test` from the root of the package(s) you've modified. See contribution guidelines for more: https://python.langchain.com/docs/contributing/ Additional guidelines: - Make sure optional dependencies are imported within a function. - Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. - Most PRs should not touch more than one package. - Changes should be backwards compatible. - If you are adding something to community, do not re-import it in langchain. If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, ccurme, vbarda, hwchase17. --------- Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>	3 months ago
Spyros Avlonitis	8cfb2fa1b7	core[minor]: Add maxsize for InMemoryCache (#23405 ) This PR introduces a maxsize parameter for the InMemoryCache class, allowing users to specify the maximum number of items to store in the cache. If the cache exceeds the specified maximum size, the oldest items are removed. Additionally, comprehensive unit tests have been added to ensure all functionalities are thoroughly tested. The tests are written using pytest and cover both synchronous and asynchronous methods. Twitter: @spyrosavl --------- Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>	3 months ago
Eugene Yurtsev	b5aef4cf97	core[patch]: Fix llm string representation for serializable models (#23416 ) Fix LLM string representation for serializable objects. Fix for issue: https://github.com/langchain-ai/langchain/issues/23257 The llm string of serializable chat models is the serialized representation of the object. LangChain serialization dumps some basic information about non serializable objects including their repr() which includes an object id. This means that if a chat model has any non serializable fields (e.g., a cache), then any new instantiation of the those fields will change the llm representation of the chat model and cause chat misses. i.e., re-instantiating a postgres cache would result in cache misses!	3 months ago
nobbbbby	3904f2cd40	core: fix NameError (#23658 ) Description: In the chat_models module of the language model, the import statement for BaseModel has been moved from the conditionally imported section to the main import area, fixing `NameError `. Issue: fix `NameError `	3 months ago
Eugene Yurtsev	4f1821db3e	core[minor]: Add get_by_ids to vectorstore interface (#23594 ) This PR adds a part of the indexing API proposed in this RFC https://github.com/langchain-ai/langchain/pull/23544/files. It allows rolling out `get_by_ids` which should be uncontroversial to existing vectorstores without introducing new abstractions. The semantics for this method depend on the ability of identifying returned documents using the new optional ID field on documents: https://github.com/langchain-ai/langchain/pull/23411 Alternatives are: 1. Relax the sequence requirement ```python def get_by_ids(self, ids: Iterable[str], /) -> Iterable[Document]: ``` Rejected: - implementations are more likley to start batching with bad defaults - users would need to call list() or we'd need to introduce another convenience method 2. Support more kwargs ```python def get_by_ids(self, ids: Sequence[str], /, **kwargs) -> List[Document]: ... ``` Rejected: - No need for `batch` parameter since IDs is a sequence - Output cannot be customized since `Document` is fixed. (e.g., parameters could be useful to grab extra metadata like the vector that was indexed with the Document or to project a part of the document)	3 months ago
Vadym Barda	e8d77002ea	core: add RemoveMessage (#23636 ) This change adds a new message type `RemoveMessage`. This will enable `langgraph` users to manually modify graph state (or have the graph nodes modify the state) to remove messages by `id` Examples: * allow users to delete messages from state by calling ```python graph.update_state(config, values=[RemoveMessage(id=state.values[-1].id)]) ``` * allow nodes to delete messages ```python graph.add_node("delete_messages", lambda state: [RemoveMessage(id=state[-1].id)]) ```	3 months ago
Jacob Lee	a032583b17	docs[patch]: Update diagrams (#23613 )	3 months ago
Leonid Ganeline	75a44fe951	core: `chat_*` docstrings (#23412 ) Added missed docstrings. Formatted docstrings to the consistent form.	3 months ago
Eugene Yurtsev	da7beb1c38	core[patch]: Add unit test when catching generator exit (#23402 ) This pr adds a unit test for: https://github.com/langchain-ai/langchain/pull/22662 And narrows the scope where the exception is caught.	3 months ago
Eugene Yurtsev	96b72edac8	core[minor]: Add optional ID field to Document schema (#23411 ) This PR adds an optional ID field to the document schema. # 1. Optional or Required - An optional field will will requrie additional checking for the type in user code (annoying). - However, vectorstores currently don't respect this field. So if we make it required and start returning random UUIDs that might be even more confusing to users. Proposal: Start with Optional and convert to Required (with default set to uuid4()) in 1-2 major releases. # 2. Override __str__ or generic solution in prompts Overriding __str__ as a simple way to avoid changing user code that relies on default str(document) in prompts. I considered rolling out a more general solution in prompts (https://github.com/langchain-ai/langchain/pull/8685), but to do that we need to: 1. Make things serializable 2. The more general solution would likely need to be backwards compatible as well 3. It's unclear that one wants to format a List[int] in the same way as List[Document]. The former should be `,` seperated (likely), the latter should be `---` separated (likely). Proposal Start with __str__ override and focus on the vectorstore APIs, we generalize prompts later	3 months ago
Jacob Lee	60fc15a56b	docs[patch]: Update docs introduction and README (#23558 ) CC @hwchase17 @baskaryan	3 months ago
Leonid Ganeline	2c9b84c3a8	core[patch]: docstrings `agents` (#23502 ) Added missed docstrings. Formatted docstrings to the consistent form.	3 months ago
Leonid Ganeline	2a5d59b3d7	core[patch]: `callbacks` docstrings (#23375 ) Added missed docstrings. Formatted docstrings to the consistent form.	3 months ago
Leonid Ganeline	1141b08eb8	core: docstrings `example_selectors` (#23542 ) Added missed docstrings. Formatted docstrings to the consistent form.	3 months ago
Bagatur	32f8f39974	core[patch]: use args_schema doc for tool description (#23503 )	3 months ago
ccurme	86ca44d451	core: release 0.2.10 (#23420 )	3 months ago
Isaac Francisco	85f5d14cef	[docs]: split up tool docs (#22919 )	3 months ago
William FH	8955bc1866	[Core] Logging: Suppress missing parent warning (#23363 )	3 months ago
ccurme	730c551819	core[patch]: export tool output parsers from langchain_core.output_parsers (#23305 ) These currently read off AIMessage.tool_calls, and only fall back to OpenAI parsing if tool calls aren't populated. Importing these from `openai_tools` (e.g., in our [tool calling docs](https://python.langchain.com/v0.2/docs/how_to/tool_calling/#tool-calls)) can lead to confusion. After landing, would need to release core and update docs.	3 months ago
Eugene Yurtsev	7e9e69c758	core[patch]: Add unit test for str and repr for Document (#23414 )	3 months ago
Riccardo Schirone	4530d851e4	Merge pull request #22662 * core: runnables: special handling GeneratorExit because no error	3 months ago
William FH	efb4c12abe	[Core] Add support for inferring Annotated types (#23284 ) in bind_tools() / convert_to_openai_function	3 months ago
Vadym Barda	9ac302cb97	core[minor]: update draw_mermaid node label processing (#23285 ) This fixes processing issue for nodes with numbers in their labels (e.g. `"node_1"`, which would previously be relabeled as `"node__"`, and now are correctly processed as `"node_1"`)	3 months ago
Bagatur	f824f6d925	docs: fix merge message runs docstring (#23279 )	3 months ago
Bagatur	9eda8f2fe8	docs: fix trim_messages code blocks (#23271 )	3 months ago
Bagatur	4c97a9ee53	docs: fix message transformer docstrings (#23264 )	3 months ago
Brace Sproul	abe7566d7d	core[minor]: BaseChatModel with_structured_output implementation (#22859 )	3 months ago
mackong	360a70c8a8	core[patch]: fix no current event loop for sql history in async mode (#22933 ) - Description: When use RunnableWithMessageHistory/SQLChatMessageHistory in async mode, we'll get the following error: ``` Error in RootListenersTracer.on_chain_end callback: RuntimeError("There is no current event loop in thread 'asyncio_3'.") ``` which throwed by `ddfbca38df/libs/community/langchain_community/chat_message_histories/sql.py (L259)`. and no message history will be add to database. In this patch, a new _aexit_history function which will'be called in async mode is added, and in turn aadd_messages will be called. In this patch, we use `afunc` attribute of a Runnable to check if the end listener should be run in async mode or not. - Issue: #22021, #22022 - Dependencies: N/A	3 months ago
mackong	b108b4d010	core[patch]: set schema format for AsyncRootListenersTracer (#23214 ) - Description: AsyncRootListenersTracer support on_chat_model_start, it's schema_format should be "original+chat". - Issue: N/A - Dependencies:	3 months ago
Bagatur	976b456619	docs: BaseChatModel key methods table (#23238 ) If we're moving documenting inherited params think these kinds of tables become more important ![Screenshot 2024-06-20 at 3 59 12 PM](https://github.com/langchain-ai/langchain/assets/22008038/722266eb-2353-4e85-8fae-76b19bd333e0)	3 months ago
Bagatur	12e0c28a6e	docs: fix chat model methods table (#23233 ) rst table not md ![Screenshot 2024-06-20 at 12 37 46 PM](https://github.com/langchain-ai/langchain/assets/22008038/7a03b869-c1f4-45d0-8d27-3e16f4c6eb19)	3 months ago
Eugene Yurtsev	7545b1d29b	core[patch]: Fix doc-strings for code blocks (#23232 ) Code blocks need extra space around them to be rendered properly by sphinx	3 months ago
Eugene Yurtsev	59d7adff8f	core[patch]: Add clarification about streaming to RunnableLambda (#23227 ) Add streaming clarification to runnable lambda docstring.	3 months ago
ChrisDEV	cb6cf4b631	Fix return value type of dumpd (#20123 ) The return type of `json.loads` is `Any`. In fact, the return type of `dumpd` must be based on `json.loads`, so the correction here is understandable. Co-authored-by: Harrison Chase <hw.chase.17@gmail.com>	3 months ago
Guangdong Liu	0bce28cd30	core(patch): Fix encoding problem of load_prompt method (#21559 ) - description: Add encoding parameters. - @baskaryan, @efriis, @eyurtsev, @hwchase17. ![54d25ac7b1d5c2e47741a56fe8ed8ba](https://github.com/langchain-ai/langchain/assets/48236177/ffea9596-2001-4e19-b245-f8a6e231b9f9)	3 months ago
Philippe PRADOS	8711c61298	core[minor]: Adds an in-memory implementation of RecordManager (#13200 ) Description: langchain offers three technologies to save data: - [vectorstore](https://python.langchain.com/docs/modules/data_connection/vectorstores/) - [docstore](https://js.langchain.com/docs/api/schema/classes/Docstore) - [record manager](https://python.langchain.com/docs/modules/data_connection/indexing) If you want to combine these technologies in a sample persistence stategy you need a common implementation for each. `DocStore` propose `InMemoryDocstore`. We propose the class `MemoryRecordManager` to complete the system. This is the prelude to another full-request, which needs a consistent combination of persistence components. Tag maintainer: @baskaryan Twitter handle: @pprados --------- Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>	3 months ago
David DeCaprio	a4bcb45f65	core:Add optional max_messages to MessagePlaceholder (#16098 ) - Description: Add optional max_messages to MessagePlaceholder - Issue: [16096](https://github.com/langchain-ai/langchain/issues/16096) - Dependencies: None - Twitter handle: @davedecaprio Sometimes it's better to limit the history in the prompt itself rather than the memory. This is needed if you want different prompts in the chain to have different history lengths. --------- Co-authored-by: Harrison Chase <hw.chase.17@gmail.com>	3 months ago
Eugene Yurtsev	1fcf875fe3	core[patch]: Document agent schema (#23194 ) * Document agent schema * Refer folks to langgraph for more information on how to create agents.	3 months ago
Eugene Yurtsev	c2d43544cc	core[patch]: Document messages namespace (#23154 ) - Moved doc-strings below attribtues in TypedDicts -- seems to render better on APIReference pages. * Provided more description and some simple code examples	3 months ago
Eugene Yurtsev	3c917204dc	core[patch]: Add doc-strings to outputs, fix @root_validator (#23190 ) - Document outputs namespace - Update a vanilla @root_validator that was missed	3 months ago
Sergey Kozlov	94452a94b1	core[patch[: add exceptions propagation test for astream_events v2 (#23159 ) Description: `astream_events(version="v2")` didn't propagate exceptions in `langchain-core<=0.2.6`, fixed in the #22916. This PR adds a unit test to check that exceptions are propagated upwards. Co-authored-by: Sergey Kozlov <sergey.kozlov@ludditelabs.io>	3 months ago
Bagatur	677408bfc9	core[patch]: fix chat history circular import (#23182 )	3 months ago
Eugene Yurtsev	883e90d06e	core[patch]: Add an example to the Document schema doc-string (#23131 ) Add an example to the document schema	3 months ago
ccurme	2b08e9e265	core[patch]: update test to catch circular imports (#23172 ) This raises ImportError due to a circular import: ```python from langchain_core import chat_history ``` This does not: ```python from langchain_core import runnables from langchain_core import chat_history ``` Here we update `test_imports` to run each import in a separate subprocess. Open to other ways of doing this!	3 months ago
Eugene Yurtsev	ae4c0ed25a	core[patch]: Add documentation to load namespace (#23143 ) Document some of the modules within the load namespace	3 months ago
Eugene Yurtsev	a34e650f8b	core[patch]: Add doc-string to document compressor (#23085 )	3 months ago
Eugene Yurtsev	4fe8403bfb	core[patch]: Expand documentation in the indexing namespace (#23134 )	3 months ago
Eugene Yurtsev	fe4f10047b	core[patch]: Document embeddings namespace (#23132 ) Document embeddings namespace	3 months ago
Eugene Yurtsev	a3bae56a48	core[patch]: Update documentation in LLM namespace (#23138 ) Update documentation in lllm namespace.	3 months ago
Bagatur	e8a8286012	core[patch]: runnablewithchathistory from core.runnables (#23136 )	3 months ago
Vadym Barda	b483bf5095	core[minor]: handle boolean data in draw_mermaid (#23135 ) This change should address graph rendering issues for edges with boolean data Example from langgraph: ```python from typing import Annotated, TypedDict from langchain_core.messages import AnyMessage from langgraph.graph import END, START, StateGraph from langgraph.graph.message import add_messages class State(TypedDict): messages: Annotated[list[AnyMessage], add_messages] def branch(state: State) -> bool: return 1 + 1 == 3 graph_builder = StateGraph(State) graph_builder.add_node("foo", lambda state: {"messages": [("ai", "foo")]}) graph_builder.add_node("bar", lambda state: {"messages": [("ai", "bar")]}) graph_builder.add_conditional_edges( START, branch, path_map={True: "foo", False: "bar"}, then=END, ) app = graph_builder.compile() print(app.get_graph().draw_mermaid()) ``` Previous behavior: ```python AttributeError: 'bool' object has no attribute 'split' ``` Current behavior: ```python %%{init: {'flowchart': {'curve': 'linear'}}}%% graph TD; __start__[__start__]:::startclass; __end__[__end__]:::endclass; foo([foo]):::otherclass; bar([bar]):::otherclass; __start__ -. ('a',) .-> foo; foo --> __end__; __start__ -. ('b',) .-> bar; bar --> __end__; classDef startclass fill:#ffdfba; classDef endclass fill:#baffc9; classDef otherclass fill:#fad7de; ```	3 months ago
Bagatur	093ae04d58	core[patch]: Pin pydantic in py3.12.4 (#23130 )	3 months ago
Artem Mukhin	e271f75bee	docs: Fix URL formatting in deprecation warnings (#23075 ) Description Updated the URLs in deprecation warning messages. The URLs were previously written as raw strings and are now formatted to be clickable HTML links. Example of a broken link in the current API Reference: https://api.python.langchain.com/en/latest/chains/langchain.chains.openai_functions.extraction.create_extraction_chain_pydantic.html <img width="942" alt="Screenshot 2024-06-18 at 13 21 07" src="https://github.com/langchain-ai/langchain/assets/4854600/a1b1863c-cd03-4af2-a9bc-70375407fb00">	3 months ago
Eugene Yurtsev	aa6415aa7d	core[minor]: Support multiple keys in get_from_dict_or_env (#23086 ) Support passing multiple keys for ge_from_dict_or_env	3 months ago
Bagatur	01783d67fc	core[patch]: Release 0.2.9 (#23091 )	3 months ago
Eugene Yurtsev	5564d9e404	core[patch]: Document BaseStore (#23082 ) Add doc-string to BaseStore	3 months ago
Takuya Igei	9f791b6ad5	core[patch],community[patch],langchain[patch]: `tenacity` dependency to version `>=8.1.0,<8.4.0` (#22973 ) Fix https://github.com/langchain-ai/langchain/issues/22972. - [x] PR title: "package: description" - Where "package" is whichever of langchain, community, core, experimental, etc. is being modified. Use "docs: ..." for purely docs changes, "templates: ..." for template changes, "infra: ..." for CI changes. - Example: "community: add foobar LLM" - [x] PR message: *Delete this entire checklist* and replace with - Description: a description of the change - Issue: the issue # it fixes, if applicable - Dependencies: any dependencies required for this change - Twitter handle: if your PR gets announced, and you'd like a mention, we'll gladly shout you out! - [x] Add tests and docs: 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. - [x] Lint and test: Run `make format`, `make lint` and `make test` from the root of the package(s) you've modified. See contribution guidelines for more: https://python.langchain.com/docs/contributing/ Additional guidelines: - Make sure optional dependencies are imported within a function. - Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. - Most PRs should not touch more than one package. - Changes should be backwards compatible. - If you are adding something to community, do not re-import it in langchain. If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, ccurme, vbarda, hwchase17.	3 months ago
Nuno Campos	f01f12ce1e	Include "no escape" and "inverted section" mustache vars in Prompt.input_variables and Prompt.input_schema (#22981 )	3 months ago
Bagatur	c2b2e3266c	core[minor]: message transformer utils (#22752 )	3 months ago
Bagatur	8235bae48e	core[patch]: Release 0.2.8 (#23012 )	3 months ago
Nuno Campos	bd4b68cd54	core: run_in_executor: Wrap StopIteration in RuntimeError (#22997 ) - StopIteration can't be set on an asyncio.Future it raises a TypeError and leaves the Future pending forever so we need to convert it to a RuntimeError	3 months ago
Erick Friis	9ef15691d6	core: release 0.2.7 (#22917 )	3 months ago
Nuno Campos	338180f383	core: in astream_events v2 always await task even if already finished (#22916 ) - this ensures exceptions propagate to the caller	3 months ago
kiarina	8171efd07a	core[patch]: Fix FunctionCallbackHandler._on_tool_end (#22908 ) If the global `debug` flag is enabled, the agent will get the following error in `FunctionCallbackHandler._on_tool_end` at runtime. ``` Error in ConsoleCallbackHandler.on_tool_end callback: AttributeError("'list' object has no attribute 'strip'") ``` By calling str() before strip(), the error was avoided. This error can be seen at [debugging.ipynb](https://github.com/langchain-ai/langchain/blob/master/docs/docs/how_to/debugging.ipynb). - Issue: NA - Dependencies: NA - Twitter handle: https://x.com/kiarina37	3 months ago
Eugene Yurtsev	4a77a3ab19	core[patch]: fix validation of @deprecated decorator (#22513 ) This PR moves the validation of the decorator to a better place to avoid creating bugs while deprecating code. Prevent issues like this from arising: https://github.com/langchain-ai/langchain/issues/22510 we should replace with a linter at some point that just does static analysis	3 months ago
Erick Friis	7234fd0f51	core: release 0.2.6 (#22868 )	3 months ago
Jacob Lee	bcbb43480c	core[patch]: Treat type as a special field when merging lists (#22750 ) Should we even log a warning? At least for Anthropic, it's expected to get e.g. `text_block` followed by `text_delta`. @ccurme @baskaryan @efriis	3 months ago
Nuno Campos	bae82e966a	core: In astream_events v2 propagate cancel/break to the inner astream call (#22865 ) - previous behavior was for the inner astream to continue running with no interruption - also propagate break in core runnable methods	3 months ago
James Braza	45b394268c	core[patch]: allowing latest `packaging` versions (#22792 ) Allowing version 24 of https://github.com/pypa/packaging --------- Co-authored-by: Erick Friis <erick@langchain.dev>	3 months ago
Christophe Bornet	d04e899b56	ci: add testing with Python 3.12 (#22813 ) We need to use a different version of numpy for py3.8 and py3.12 in pyproject. And so do projects that use that Python version range and import langchain. - Twitter handle: _cbornet	3 months ago
Eugene Yurtsev	5dbbdcbf8e	core[patch]: Update remaining root_validators (#22829 ) This PR updates the remaining root_validators in core to either be explicit pre-init or post-init validators.	3 months ago
Eugene Yurtsev	74e705250f	core[patch]: update some root_validators (#22787 ) Update some of the @root_validators to be explicit pre=True or pre=False, skip_on_failure=True for pydantic 2 compatibility.	3 months ago
Erick Friis	2aaf86ddae	core: fix mustache falsy cases (#22747 )	4 months ago
Eugene Yurtsev	5a7eac191a	core[patch]: Add missing type annotations (#22756 ) Add missing type annotations. The missing type annotations will raise exceptions with pydantic 2.	4 months ago
Erick Friis	9e03864d64	core: add error message for non-structured llm to StructuredPrompt (#22684 ) previously was the blank `NotImplementedError` from `BaseLanguageModel.with_structured_output`	4 months ago
William FH	be79ce9336	[Core] Unified Enable/Disable Tracing (#22576 )	4 months ago
Erick Friis	a24a9c6427	multiple: get rid of pyproject extras (#22581 ) They cause `poetry lock` to take a ton of time, and `uv pip install` can resolve the constraints from these toml files in trivial time (addressing problem with #19153) This allows us to properly upgrade lockfile dependencies moving forward, which revealed some issues that were either fixed or type-ignored (see file comments)	4 months ago
Bagatur	4367e89c9a	core[patch]: Release 0.2.5 (#22642 )	4 months ago
Eugene Yurtsev	28f744c1f5	core[patch]: Correctly order parent ids in astream events (from root to immediate parent), add defensive check for cycles (#22637 ) This PR makes two changes: 1. Fixes the order of parent IDs to be from root to immediate parent 2. Adds a simple defensive check for cycles	4 months ago
Eugene Yurtsev	035a9c9609	core[minor]: Add parent_ids to astream_events API (#22563 ) Include a list of parent ids for each event in astream events.	4 months ago
Nicolas Nkiere	51005e2776	core[minor]: Add an async root listener and with_alisteners method (#22151 ) - [x] Adding AsyncRootListener: "langchain_core: Adding AsyncRootListener" - Description: Adding an AsyncBaseTracer, AsyncRootListener and `with_alistener` function. This is to enable binding async root listener to runnables. This currently only supported for sync listeners. - Issue: None - Dependencies: None - [x] Add tests and docs: Added units tests and example snippet code within the function description of `with_alistener` - [x] Lint and test: Run make format_diff, make lint_diff and make test	4 months ago
Christophe Bornet	12ddb4fc6f	core[patch]: Use explicit classes for InMemoryByteStore and InMemoryStore (#22608 ) The current implementation doesn't work well with type checking. Instead replace with class definition that correctly works with type checking.	4 months ago
andyjessen	cfed68e06f	docs: Fix description (#22611 ) This commit fixes the description of the hair_color field.	4 months ago
andyjessen	8b40428f58	docs: Fix typo (#22603 ) This commit changes minor typo in the field description.	4 months ago
Christophe Bornet	c34ad8c163	core[patch]: Improve VectorStore API doc (#22547 )	4 months ago
Christophe Bornet	8ba868d3b0	core[patch]: Add similarity_score_threshold to VectorStore search types (#22477 )	4 months ago
Eugene Yurtsev	9120cf5df2	core[patch]: Deduplicate of callback handlers in merge_configs (#22478 ) This PR adds deduplication of callback handlers in merge_configs. Fix for this issue: https://github.com/langchain-ai/langchain/issues/22227 The issue appears when the code is: 1) running python >=3.11 2) invokes a runnable from within a runnable 3) binds the callbacks to the child runnable from the parent runnable using with_config In this case, the same callbacks end up appearing twice: (1) the first time from with_config, (2) the second time with langchain automatically propagating them on behalf of the user. Prior to this PR this will emit duplicate events: ```python @tool async def get_items(question: str, callbacks: Callbacks): # <--- Accept callbacks """Ask question""" template = ChatPromptTemplate.from_messages( [ ( "human", "'{question}" ) ] ) chain = template \| chat_model.with_config( { "callbacks": callbacks, # <-- Propagate callbacks } ) return await chain.ainvoke({"question": question}) ``` Prior to this PR this will work work correctly (no duplicate events): ```python @tool async def get_items(question: str, callbacks: Callbacks): # <--- Accept callbacks """Ask question""" template = ChatPromptTemplate.from_messages( [ ( "human", "'{question}" ) ] ) chain = template \| chat_model return await chain.ainvoke({"question": question}, {"callbacks": callbacks}) ``` This will also work (as long as the user is using python >= 3.11) -- as langchain will automatically propagate callbacks ```python @tool async def get_items(question: str,): """Ask question""" template = ChatPromptTemplate.from_messages( [ ( "human", "'{question}" ) ] ) chain = template \| chat_model return await chain.ainvoke({"question": question}) ```	4 months ago
Bagatur	161b02a8be	core[patch]: Release 0.2.4 (#22489 )	4 months ago
ccurme	6db25b4e31	core[patch]: bump langsmith (#22476 ) Noticing errors logged in some situations when tracing with Langsmith: ```python from langchain_core.pydantic_v1 import BaseModel from langchain_anthropic import ChatAnthropic class AnswerWithJustification(BaseModel): """An answer to the user question along with justification for the answer.""" answer: str justification: str llm = ChatAnthropic(model="claude-3-haiku-20240307") structured_llm = llm.with_structured_output(AnswerWithJustification) list(structured_llm.stream("What weighs more a pound of bricks or a pound of feathers")) ``` ``` Error in LangChainTracer.on_chain_end callback: AttributeError("'NoneType' object has no attribute 'append'") [AnswerWithJustification(answer='A pound of bricks and a pound of feathers weigh the same amount.', justification='This is because a pound is a unit of mass, not volume. By definition, a pound of any material, whether bricks or feathers, will weigh the same - one pound. The physical size or volume of the materials does not matter when measuring by mass. So a pound of bricks and a pound of feathers both weigh exactly one pound.')] ```	4 months ago
Nuno Campos	58b118544e	Use immutable sequence type for batch/batch_as_completed types (#22433 ) Thank you for contributing to LangChain! - [ ] PR title: "package: description" - Where "package" is whichever of langchain, community, core, experimental, etc. is being modified. Use "docs: ..." for purely docs changes, "templates: ..." for template changes, "infra: ..." for CI changes. - Example: "community: add foobar LLM" - [ ] PR message: *Delete this entire checklist* and replace with - Description: a description of the change - Issue: the issue # it fixes, if applicable - Dependencies: any dependencies required for this change - Twitter handle: if your PR gets announced, and you'd like a mention, we'll gladly shout you out! - [ ] Add tests and docs: 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. - [ ] Lint and test: Run `make format`, `make lint` and `make test` from the root of the package(s) you've modified. See contribution guidelines for more: https://python.langchain.com/docs/contributing/ Additional guidelines: - Make sure optional dependencies are imported within a function. - Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. - Most PRs should not touch more than one package. - Changes should be backwards compatible. - If you are adding something to community, do not re-import it in langchain. If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, ccurme, vbarda, hwchase17.	4 months ago
Christophe Bornet	23bba18f92	core[patch]: Fix VectorStore's as_retriever mutating tags param (#22470 ) The current VectorStore `as_retriever` implementation mutates the `tags` param when it's passed in kwargs. This fix ensures that a copy is done.	4 months ago
Guangdong Liu	bc7e32f315	core(patch):fix partial_variables not working with SystemMessagePromptTemplate (#20711 ) - Issue: close #17560 - @baskaryan, @eyurtsev	4 months ago
Jacob Lee	c01467b1f4	core[patch]: RFC: Allow concatenation of messages with multi part content (#22002 ) Anthropic's streaming treats tool calls as different content parts (streamed back with a different index) from normal content in the `content`. This means that we need to update our chunk-merging logic to handle chunks with multi-part content. The alternative is coerceing Anthropic's responses into a string, but we generally like to preserve model provider responses faithfully when we can. This will also likely be useful for multimodal outputs in the future. This current PR does unfortunately make `index` a magic field within content parts, but Anthropic and OpenAI both use it at the moment to determine order anyway. To avoid cases where we have content arrays with holes and to simplify the logic, I've also restricted merging to chunks in order. TODO: tests CC @baskaryan @ccurme @efriis	4 months ago
Nuno Campos	ceb73ad06f	core: In BaseRetriever make get_relevant_docs delegate to invoke (#22434 ) - This fixes all the tracing issues with people still using get_relevant_docs, and a change we need for 0.3 anyway Thank you for contributing to LangChain! - [ ] PR title: "package: description" - Where "package" is whichever of langchain, community, core, experimental, etc. is being modified. Use "docs: ..." for purely docs changes, "templates: ..." for template changes, "infra: ..." for CI changes. - Example: "community: add foobar LLM" - [ ] PR message: *Delete this entire checklist* and replace with - Description: a description of the change - Issue: the issue # it fixes, if applicable - Dependencies: any dependencies required for this change - Twitter handle: if your PR gets announced, and you'd like a mention, we'll gladly shout you out! - [ ] Add tests and docs: 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. - [ ] Lint and test: Run `make format`, `make lint` and `make test` from the root of the package(s) you've modified. See contribution guidelines for more: https://python.langchain.com/docs/contributing/ Additional guidelines: - Make sure optional dependencies are imported within a function. - Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. - Most PRs should not touch more than one package. - Changes should be backwards compatible. - If you are adding something to community, do not re-import it in langchain. If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, ccurme, vbarda, hwchase17.	4 months ago
Nuno Campos	ed8e9c437a	core: In RunnableSequence pass kwargs to the first step (#22393 ) - This is a pattern that shows up occasionally in langgraph questions, people chain a graph to something else after, and want to pass the graph some kwargs (eg. stream_mode)	4 months ago
Bagatur	2b9f1469d8	core[patch]: Release 0.2.3 (#22329 )	4 months ago
Harrison Chase	ee32369265	core[patch]: fix runnable history and add docs (#22283 )	4 months ago
William FH	dcec133b85	[Core] Update Tracing Interops (#22318 ) LangSmith and LangChain context var handling evolved in parallel since originally we didn't expect people to want to interweave the decorator and langchain code. Once we get a new langsmith release, this PR will let you seemlessly hand off between @traceable context and runnable config context so you can arbitrarily nest code. It's expected that this fails right now until we get another release of the SDK	4 months ago
ccurme	e71b0b5827	core[patch]: Release 0.2.2 (#22289 )	4 months ago
Bagatur	d61bdeba25	core[patch]: allow access RunnableWithFallbacks.runnable attrs (#22139 ) RFC, candidate fix for #13095 #22134	4 months ago
hmasdev	bbd7015b5d	core[patch]: Add `TypeError` handler into `get_graph` of `Runnable` (#19856 ) # Description ## Problem `Runnable.get_graph` fails when `InputType` or `OutputType` property raises `TypeError`. - `003c98e5b4/libs/core/langchain_core/runnables/base.py (L250-L274)` - `003c98e5b4/libs/core/langchain_core/runnables/base.py (L394-L396)` This problem prevents getting a graph of `Runnable` objects whose `InputType` or `OutputType` property raises `TypeError` but whose `invoke` works well, such as `langchain.output_parsers.RegexParser`, which I have already pointed out in #19792 that a `TypeError` would occur. ## Solution - Add `try-except` syntax to handle `TypeError` to the codes which get `input_node` and `output_node`. # Issue - #19801 # Twitter Handle - [hmdev3](https://twitter.com/hmdev3) --------- Co-authored-by: Bagatur <baskaryan@gmail.com>	4 months ago
Eugene Yurtsev	2d693c484e	docs: fix some spelling mistakes caught by newest version of code spell (#22090 ) Going to merge this even though it doesn't pass all tests, and open a separate PR for the remaining spelling mistakes.	4 months ago
ccurme	cd07521170	core: bump to 0.2.1rc (#22080 )	4 months ago
ccurme	fbfed65fb1	core, partners: add token usage attribute to AIMessage (#21944 ) ```python class UsageMetadata(TypedDict): """Usage metadata for a message, such as token counts. Attributes: input_tokens: (int) count of input (or prompt) tokens output_tokens: (int) count of output (or completion) tokens total_tokens: (int) total token count """ input_tokens: int output_tokens: int total_tokens: int ``` ```python class AIMessage(BaseMessage): ... usage_metadata: Optional[UsageMetadata] = None """If provided, token usage information associated with the message.""" ... ```	4 months ago
Bagatur	50186da0a1	infra: rm unused # noqa violations (#22049 ) Updating #21137	4 months ago
Bagatur	3b0437c05b	core[patch]: Release 0.2.1 (#22003 )	4 months ago
Eugene Yurtsev	ded53297e0	core[patch]: Add unit test for RunnableGenerator for eventstream v2 (#21990 ) No unit tests with runnable generator	4 months ago
Nuno Campos	fb6108c8f5	core[patch]: In astream_events(version=v2) tap output of root run (#21977 ) - if tap_output_iter/aiter is called multiple times for the same run issue events only once - if chat model run is tapped don't issue duplicate on_llm_new_token events - if first chunk arrives after run has ended do not emit it as a stream event --------- Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>	4 months ago
ccurme	a983465694	docs: set default anthropic model (#21988 ) `ChatAnthropic()` raises ValidationError.	4 months ago
Michael Reed	7a5e1bcf99	core[patch]: Fix NPE in function_calling._get_python_function_required_args (#21863 ) Example error message: line 206, in _get_python_function_required_args if is_function_type and required[0] == "self": ~~~~~~~~^^^ IndexError: list index out of range Thank you for contributing to LangChain! - [x] PR title: "package: description" - Where "package" is whichever of langchain, community, core, experimental, etc. is being modified. Use "docs: ..." for purely docs changes, "templates: ..." for template changes, "infra: ..." for CI changes. - Example: "community: add foobar LLM" - [x] PR message: *Delete this entire checklist* and replace with - Description: a description of the change - Issue: the issue # it fixes, if applicable - Dependencies: any dependencies required for this change - Twitter handle: if your PR gets announced, and you'd like a mention, we'll gladly shout you out! - [x] Add tests and docs: 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. - [x] Lint and test: Run `make format`, `make lint` and `make test` from the root of the package(s) you've modified. See contribution guidelines for more: https://python.langchain.com/docs/contributing/ Additional guidelines: - Make sure optional dependencies are imported within a function. - Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. - Most PRs should not touch more than one package. - Changes should be backwards compatible. - If you are adding something to community, do not re-import it in langchain. If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, hwchase17. --------- Co-authored-by: Bagatur <baskaryan@gmail.com>	4 months ago
Coozywana	b6c8b6f944	Fix base.py typo (#21862 ) ChatOpenaAI --> ChatOpenAI Thank you for contributing to LangChain! - [ ] PR title: "package: description" - Where "package" is whichever of langchain, community, core, experimental, etc. is being modified. Use "docs: ..." for purely docs changes, "templates: ..." for template changes, "infra: ..." for CI changes. - Example: "community: add foobar LLM" - [ ] PR message: *Delete this entire checklist* and replace with - Description: a description of the change - Issue: the issue # it fixes, if applicable - Dependencies: any dependencies required for this change - Twitter handle: if your PR gets announced, and you'd like a mention, we'll gladly shout you out! - [ ] Add tests and docs: 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. - [ ] Lint and test: Run `make format`, `make lint` and `make test` from the root of the package(s) you've modified. See contribution guidelines for more: https://python.langchain.com/docs/contributing/ Additional guidelines: - Make sure optional dependencies are imported within a function. - Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. - Most PRs should not touch more than one package. - Changes should be backwards compatible. - If you are adding something to community, do not re-import it in langchain. If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, hwchase17.	4 months ago
Bagatur	8b3c5f93f5	docs: lcel how to and cheatsheet (#21851 )	4 months ago
Nuno Campos	b1e7b40b6a	core: Tap output of sync iterators for astream_events (#21842 ) Thank you for contributing to LangChain! - [ ] PR title: "package: description" - Where "package" is whichever of langchain, community, core, experimental, etc. is being modified. Use "docs: ..." for purely docs changes, "templates: ..." for template changes, "infra: ..." for CI changes. - Example: "community: add foobar LLM" - [ ] PR message: *Delete this entire checklist* and replace with - Description: a description of the change - Issue: the issue # it fixes, if applicable - Dependencies: any dependencies required for this change - Twitter handle: if your PR gets announced, and you'd like a mention, we'll gladly shout you out! - [ ] Add tests and docs: 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. - [ ] Lint and test: Run `make format`, `make lint` and `make test` from the root of the package(s) you've modified. See contribution guidelines for more: https://python.langchain.com/docs/contributing/ Additional guidelines: - Make sure optional dependencies are imported within a function. - Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. - Most PRs should not touch more than one package. - Changes should be backwards compatible. - If you are adding something to community, do not re-import it in langchain. If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, hwchase17.	4 months ago
Eugene Yurtsev	67b6f6c82a	core[patch]: Check if event loop is closed in memory stream (#21841 ) Check if event stream is closed in memory loop. Using try/except here to avoid race condition, but this may incur a small overhead in versions prios to 3.11	4 months ago
Erick Friis	23310626b3	core: release 0.2.0 (#21829 )	4 months ago
ccurme	181dfef118	core, standard tests, partner packages: add test for model params (#21677 ) 1. Adds `.get_ls_params` to BaseChatModel which returns ```python class LangSmithParams(TypedDict, total=False): ls_provider: str ls_model_name: str ls_model_type: Literal["chat"] ls_temperature: Optional[float] ls_max_tokens: Optional[int] ls_stop: Optional[List[str]] ``` by default it will only return ```python {ls_model_type="chat", ls_stop=stop} ``` 2. Add these params to inheritable metadata in `CallbackManager.configure` 3. Implement `.get_ls_params` and populate all params for Anthropic + all subclasses of BaseChatOpenAI Sample trace: https://smith.langchain.com/public/d2962673-4c83-47c7-b51e-61d07aaffb1b/r OpenAI: <img width="984" alt="Screenshot 2024-05-17 at 10 03 35 AM" src="https://github.com/langchain-ai/langchain/assets/26529506/2ef41f74-a9df-4e0e-905d-da74fa82a910"> Anthropic: <img width="978" alt="Screenshot 2024-05-17 at 10 06 07 AM" src="https://github.com/langchain-ai/langchain/assets/26529506/39701c9f-7da5-4f1a-ab14-84e9169d63e7"> Mistral (and all others for which params are not yet populated): <img width="977" alt="Screenshot 2024-05-17 at 10 08 43 AM" src="https://github.com/langchain-ai/langchain/assets/26529506/37d7d894-fec2-4300-986f-49a5f0191b03">	4 months ago
Eugene Yurtsev	6ed0aa3239	core[major]: only use function description (#21622 ) Do not prefix function signature --- * Reason for this is that information is already present with tool calling models. * This will save on tokens for those models, and makes it more obvious what the description is! * The @tool can get more parameters to allow a user to re-introduce the the signature if we want	4 months ago
William FH	8498b41cda	Finish agent migration doc (#21731 )	4 months ago
William FH	ca768c8353	[Core] Check is async callable (#21714 ) To permit proper coercion of objects like the following: ```python class MyAsyncCallable: async def __call__(self, foo): return await ... class MyAsyncGenerator: async def __call__(self, foo): await ... yield ```	4 months ago
Eugene Yurtsev	5c2cfabec6	core[minor]: Add v2 implementation of astream events (#21638 ) This PR introduces a v2 implementation of astream events that removes intermediate abstractions and fixes some issues with v1 implementation. The v2 implementation significantly reduces relevant code that's associated with the astream events implementation together with overhead. After this PR, the astream events implementation: - Uses an async callback handler - No longer relies on BaseTracer - No longer relies on json patch As a result of this re-write, a number of issues were discovered with the existing implementation. ## Changes in V2 vs. V1 ### on_chat_model_end `output` The outputs associated with `on_chat_model_end` changed depending on whether it was within a chain or not. As a root level runnable the output was: ```python "data": {"output": AIMessageChunk(content="hello world!", id='some id')} ``` As part of a chain the output was: ``` "data": { "output": { "generations": [ [ { "generation_info": None, "message": AIMessageChunk( content="hello world!", id=AnyStr() ), "text": "hello world!", "type": "ChatGenerationChunk", } ] ], "llm_output": None, } }, ``` After this PR, we will always use the simpler representation: ```python "data": {"output": AIMessageChunk(content="hello world!", id='some id')} ``` NOTE Non chat models (i.e., regular LLMs) are still associated with the more verbose format. ### Remove some `_stream` events `on_retriever_stream` and `on_tool_stream` events were removed -- these were not real events, but created as an artifact of implementing on top of astream_log. The same information is already available in the `x_on_end` events. ### Propagating Names Names of runnables have been updated to be more consistent ```python model = GenericFakeChatModel(messages=infinite_cycle).configurable_fields( messages=ConfigurableField( id="messages", name="Messages", description="Messages return by the LLM", ) ) ``` Before: ```python "name": "RunnableConfigurableFields", ``` After: ```python "name": "GenericFakeChatModel", ``` ### on_retriever_end on_retriever_end will always return `output` which is a list of documents (rather than a dict containing a key called "documents") ### Retry events Removed the `on_retry` callback handler. It was incorrectly showing that the failed function being retried has invoked `on_chain_end` https://github.com/langchain-ai/langchain/pull/21638/files#diff-e512e3f84daf23029ebcceb11460f1c82056314653673e450a5831147d8cb84dL1394	4 months ago
Bagatur	241a6e43a5	docs: update structured how to (#21679 )	4 months ago
Eugene Yurtsev	e69a9bedf8	core[patch]: Update mypy config (#21684 ) Update mypy config to ignore checking deps from numpy and pytest (which are optional in langsmith sdk)	4 months ago
Eugene Yurtsev	5c64c004cc	core[patch]: Add unit tests with some streaming scenarios (#21668 ) Add unit tests that show differences between sync / async versions when streaming. The inner on_chain_chunk event is missing if mixing sync and async functionality. Likely due to missing tap_output_iter implementation on the sync variant of `_transform_stream_with_config`	4 months ago
Eugene Yurtsev	2ac4d2960c	core[patch]: Add unit test to catch ordering (#21669 ) Add unit test to catch ordering issues	4 months ago
Zhao Blake	972d2071c6	core[patch]: Fix typo in VectorStoreExampleSelector doc-string (#21574 )	4 months ago
Erick Friis	c77d2f2b06	multiple: core 0.2 nonbreaking dep, check_diff community->langchain dep (#21646 ) 0.2 is not a breaking release for core (but it is for langchain and community) To keep the core+langchain+community packages in sync at 0.2, we will relax deps throughout the ecosystem to tolerate `langchain-core` 0.2	4 months ago
adreo00	40aff1eacc	core[major]: AsyncCallbackManagerForToolRun no longer casts return object to string (#20374 ) - Description: Stops `AsyncCallbackManagerForToolRun` from converting the output to str - Issue: #20372 - Dependencies: None	4 months ago
Guangdong Liu	a156aace2b	core[patch]:Fix Incorrect listeners parameters for Runnable.with_listeners() and .map() (#20661 ) - Issue: fix #20509 - @baskaryan, @eyurtsev ![image](https://github.com/langchain-ai/langchain/assets/48236177/f799a976-b983-4d8b-b373-64392e1fd6c6)	4 months ago
Nuno Campos	ad0f3c14c2	core: allow mermaid node labels to have any characters (#21385 ) - it's only node ids that are limited Thank you for contributing to LangChain! - [ ] PR title: "package: description" - Where "package" is whichever of langchain, community, core, experimental, etc. is being modified. Use "docs: ..." for purely docs changes, "templates: ..." for template changes, "infra: ..." for CI changes. - Example: "community: add foobar LLM" - [ ] PR message: *Delete this entire checklist* and replace with - Description: a description of the change - Issue: the issue # it fixes, if applicable - Dependencies: any dependencies required for this change - Twitter handle: if your PR gets announced, and you'd like a mention, we'll gladly shout you out! - [ ] Add tests and docs: 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. - [ ] Lint and test: Run `make format`, `make lint` and `make test` from the root of the package(s) you've modified. See contribution guidelines for more: https://python.langchain.com/docs/contributing/ Additional guidelines: - Make sure optional dependencies are imported within a function. - Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. - Most PRs should not touch more than one package. - Changes should be backwards compatible. - If you are adding something to community, do not re-import it in langchain. If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, hwchase17.	5 months ago
Erick Friis	0fb93cd740	core: release 0.1.52 (#21350 )	5 months ago
Nuno Campos	6f17158606	fix: core: Include in json output also fields set outside the constructor (#21342 )	5 months ago
Erick Friis	811e9cee8b	core: release 0.1.51 (#21328 )	5 months ago
Leonid Ganeline	3ef8b24277	core[patch]: `utils.guard_import` fix (#21133 ) Issues (nit): 1. `utils.guard_import` prints wrong error message when there is an import `error.` It prints the whole `module_name` but should be only the first part as the pip package name. E.i. `langchain_core.utils` -> print not `langchain-core` but `langchain_core.utils`. Also replace '_' with '-' in the pip package name. 2. it does not handle the `ModuleNotFoundError` which raised if `guard_import("wrong_module")` Fixed issues; added ut-s. Controversial: I've reraised `ModuleNotFoundError` as `ImportError`, since in case of the error, the proposed action is the same - we need to install a missed package.	5 months ago
Nuno Campos	6e1e0c7d5c	fix: core: draw_mermaid() would create subgroup for edges with same src and tgt (#21275 ) Thank you for contributing to LangChain! - [ ] PR title: "package: description" - Where "package" is whichever of langchain, community, core, experimental, etc. is being modified. Use "docs: ..." for purely docs changes, "templates: ..." for template changes, "infra: ..." for CI changes. - Example: "community: add foobar LLM" - [ ] PR message: *Delete this entire checklist* and replace with - Description: a description of the change - Issue: the issue # it fixes, if applicable - Dependencies: any dependencies required for this change - Twitter handle: if your PR gets announced, and you'd like a mention, we'll gladly shout you out! - [ ] Add tests and docs: 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. - [ ] Lint and test: Run `make format`, `make lint` and `make test` from the root of the package(s) you've modified. See contribution guidelines for more: https://python.langchain.com/docs/contributing/ Additional guidelines: - Make sure optional dependencies are imported within a function. - Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. - Most PRs should not touch more than one package. - Changes should be backwards compatible. - If you are adding something to community, do not re-import it in langchain. If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, hwchase17.	5 months ago
ccurme	6da3d92b42	(all): update removal in deprecation warnings from 0.2 to 0.3 (#21265 ) We are pushing out the removal of these to 0.3. `find . -type f -name "*.py" -exec sed -i '' 's/removal="0\.2/removal="0.3/g' {} +`	5 months ago
Erick Friis	c1eb95b967	core: release 0.1.50 (#21230 )	5 months ago
Nuno Campos	47ce8d5a57	core: tracer: remove numeric execution order (#21220 ) - this hasn't been used in a long time and requires some additional bookkeeping i'm going to streamline in the next pr	5 months ago
Bagatur	d297d90ad9	core[patch]: Release 0.1.49 (#21211 )	5 months ago
Nuno Campos	663747b730	core[patch]: Fixes for convert_messages (#21207 ) - support two-tuples of any sequence type (eg. json.loads never produces tuples) - support type alias for role key - if id is passed in in dict form use it - if tool_calls passed in in dict form use them --------- Co-authored-by: Bagatur <baskaryan@gmail.com>	5 months ago
William FH	ab55f6996d	[Core] Tracing: update parent run_tree's child_runs (#21049 )	5 months ago
Erick Friis	2407c353be	core: release 0.1.48 (#21113 )	5 months ago
Eugene Yurtsev	3c064a757f	core[minor],langchain[patch],community[patch]: Move storage interfaces to core (#20750 ) * Move storage interface to core * Move in memory and file system implementation to core	5 months ago
Erick Friis	748f2ba9ea	core: release 0.1.47 (#21094 )	5 months ago
William FH	5c63ac3dd7	[Patch] Dedent docstring (#20959 ) Technically a slight prompt breaking change, but I think positive EV in that it saves tokens and results in more sane / in-distribution prompts	5 months ago
Christophe Bornet	5c77f45b06	community[minor]: Add async methods to CassandraCache and CassandraSemanticCache (#20654 )	5 months ago
William FH	db14d4326d	[Core] Feat Pretty Print Tool calls (#20997 ) Right now, `tool_calls` are not included in the `pretty_print()` output. Would be nice to show! ![image](https://github.com/langchain-ai/langchain/assets/13333726/6a0ffca3-d02f-4e18-bc76-513eeca2e964)	5 months ago
Leonid Ganeline	1a2ff56cd8	core[patch[: docstring update (#21036 ) Added missed docstrings. Updated docstrings to consistent format.	5 months ago
hmn falahi	4822beb298	Ignore self/cls from required args of class functions in convert_to_openai_tool (#20691 ) Removed redundant self/cls from required args of class functions in _get_python_function_required_args: ```python class MemberTool: def search_member( self, keyword: str, args, *kwargs, ): """Search on members with any keyword like first_name, last_name, email Args: keyword: Any keyword of member """ headers = dict(authorization=kwargs['token']) members = [] try: members = request_( method='SEARCH', url=f'{service_url}/apiv1/members', headers=headers, json=dict(query=keyword), ) except Exception as e: logger.info(e.__doc__) return members convert_to_openai_tool(MemberTool.search_member) ``` expected result: ``` {'type': 'function', 'function': {'name': 'search_member', 'description': 'Search on members with any keyword like first_name, last_name, username, email', 'parameters': {'type': 'object', 'properties': {'keyword': {'type': 'string', 'description': 'Any keyword of member'}}, 'required': ['keyword']}}} ``` #20685 --------- Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com> Co-authored-by: Bagatur <baskaryan@gmail.com>	5 months ago
William FH	9fa9f05e5d	Catch System Error in ast parse (#20961 ) I can't seem to reproduce, but i got this: ``` SystemError: AST constructor recursion depth mismatch (before=102, after=37) ``` And the operation isn't critical for the actual forward pass so seems preferable to expand our caught exceptions	5 months ago
YH	2aca7fcdcf	core[patch]: Enhance link extraction with query parameters (#20259 ) Description: This update enhances the `extract_sub_links` function within the `langchain_core/utils/html.py` module to include query parameters in the extracted URLs. Issue: N/A Dependencies: No additional dependencies required for this change. Twitter handle: N/A Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>	5 months ago
Leonid Kuligin	893a924b90	core[minor], community[patch], langchain[patch]: move BaseChatLoader to core (#19607 ) Thank you for contributing to LangChain! - [ ] PR title: "core: move BaseChatLoader and BaseToolkit from community" - [ ] PR message: move BaseChatLoader and BaseToolkit --------- Co-authored-by: Bagatur <baskaryan@gmail.com>	5 months ago
Erick Friis	d4befd0cfb	core: fix batch ordering test (#20952 )	5 months ago
ccurme	7d8d0229fa	remove placeholder error message (#20340 )	5 months ago
William FH	4c437ebb9c	Use lstv2 (#20747 )	5 months ago
Anish Chakraborty	898362de81	core[patch]: improve comma separated list output parser to handle non-space separated list (#20434 ) - Description: Changes `lanchain_core.output_parsers.CommaSeparatedListOutputParser` to handle `,` as a delimiter alongside the previous implementation which used `, ` as delimiter. - Issue: Started noticing that some results returned by LLMs were not getting parsed correctly when the output contained `,` instead of `, `. - Dependencies: No - Twitter handle: not active on twitter. <!--- If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, hwchase17. -->	5 months ago
ccurme	b8db73233c	core, community: deprecate tool.__call__ (#20900 ) Does not update docs.	5 months ago
Bagatur	5b83130855	core[minor], langchain[patch], community[patch]: mv StructuredQuery (#20849 ) mv StructuredQuery to core	5 months ago
Bagatur	ffad3985a1	core[patch]: Release 0.1.46 (#20891 )	5 months ago
William FH	a936f696a6	[Core] Feat: update config CVar in tool.invoke (#20808 )	5 months ago
Harrison Chase	43c041cda5	support messages in messages out (#20862 )	5 months ago
Erick Friis	8c95ac3145	docs, multiple: de-beta with_structured_output (#20850 )	5 months ago
Nuno Campos	477eb1745c	Better support for subgraphs in graph viz (#20840 )	5 months ago
Eugene Yurtsev	d8aa72f51d	core[minor],langchain[patch]: Move base indexing interface and logic to core (#20667 ) This PR moves the interface and the logic to core. The following changes to namespaces: `indexes` -> `indexing` `indexes._api` -> `indexing.api` Testing code is intentionally duplicated for now since it's testing different implementations of the record manager (in-memory vs. SQL). Common logic will need to be pulled out into the test client. A follow up PR will move the SQL based implementation outside of LangChain.	5 months ago
Eugene Yurtsev	30e48c9878	core[patch],community[patch]: Move file chat history back to community (#20834 ) Marking as patch since we haven't had releases in between. This just reverting part of a PR from yesterday.	5 months ago
Erick Friis	30c7951505	core: use qualname in beta message (#20361 )	5 months ago
Eugene Yurtsev	ad6b5f84e5	community[patch],core[minor]: Move in memory cache implementation to core (#20753 ) This PR moves the InMemoryCache implementation from community to core.	5 months ago
Eugene Yurtsev	a2cc9b55ba	core[patch]: Remove autoupgrade to addable dict in Runnable/RunnableLambda/RunnablePassthrough transform (#20677 ) Causes an issue for this code ```python from langchain.chat_models.openai import ChatOpenAI from langchain.output_parsers.openai_tools import JsonOutputToolsParser from langchain.schema import SystemMessage prompt = SystemMessage(content="You are a nice assistant.") + "{question}" llm = ChatOpenAI( model_kwargs={ "tools": [ { "type": "function", "function": { "name": "web_search", "description": "Searches the web for the answer to the question.", "parameters": { "type": "object", "properties": { "query": { "type": "string", "description": "The question to search for.", }, }, }, }, } ], }, streaming=True, ) parser = JsonOutputToolsParser(first_tool_only=True) llm_chain = prompt \| llm \| parser \| (lambda x: x) for chunk in llm_chain.stream({"question": "tell me more about turtles"}): print(chunk) # message = llm_chain.invoke({"question": "tell me more about turtles"}) # print(message) ``` Instead by definition, we'll assume that RunnableLambdas consume the entire stream and that if the stream isn't addable then it's the last message of the stream that's in the usable format. --- If users want to use addable dicts, they can wrap the dict in an AddableDict class. --- Likely, need to follow up with the same change for other places in the code that do the upgrade	5 months ago
Eugene Yurtsev	645b1e142e	core[minor],langchain[patch],community[patch]: Move InMemory and File implementations of Chat History to core (#20752 ) This PR moves the implementations for chat history to core. So it's easier to determine which dependencies need to be broken / add deprecation warnings	5 months ago
ccurme	7a922f3e48	core, openai: support custom token encoders (#20762 )	5 months ago
Eugene Yurtsev	38adbfdf34	community[patch],core[minor]: Move BaseToolKit to core.tools (#20669 )	5 months ago
ccurme	c010ec8b71	patch: deprecate (a)get_relevant_documents (#20477 ) - `.get_relevant_documents(query)` -> `.invoke(query)` - `.get_relevant_documents(query=query)` -> `.invoke(query)` - `.get_relevant_documents(query, callbacks=callbacks)` -> `.invoke(query, config={"callbacks": callbacks})` - `.get_relevant_documents(query, kwargs)` -> `.invoke(query, kwargs)` --------- Co-authored-by: Erick Friis <erick@langchain.dev>	5 months ago
Erick Friis	940242c1ec	core: release 0.1.45 (#20664 )	5 months ago
Nuno Campos	48307e46a3	core[patch]: Fix runnable map ser/de (#20631 )	5 months ago
Erick Friis	3425988de7	core: deprecation default to qualname (#20578 )	5 months ago
Erick Friis	66fb0b1f35	core: fix fireworks mapping (#20613 )	5 months ago
aditya thomas	cea379e7c7	community, core[callbacks]: move FileCallbackHandler from community to core (#20495 ) Description: Move `FileCallbackHandler` from community to core Issue: #20493 Dependencies: None (imo) `FileCallbackHandler` is a built-in LangChain callback handler like `StdOutCallbackHandler` and should properly be in in core.	5 months ago
Erick Friis	e395115807	docs: aws docs updates (#20571 )	5 months ago
Nuno Campos	719da8746e	core: fix attributeerror in runnablelambda.deps (#20569 ) - would happen when user's code tries to access attritbute that doesnt exist, we prefer to let this crash in the user's code, rather than here - also catch more cases where a runnable is invoked/streamed inside a lambda. before we weren't seeing these as deps	5 months ago
Bagatur	7917e2c418	core[patch]: Release 0.1.44 (#20564 )	5 months ago
Erick Friis	e7fe5f7d3f	anthropic[patch]: serialization in partner package (#18828 )	5 months ago
Erick Friis	6adca37eb7	core: default chat/llm _identifying_params to lc_attributes (#20232 )	5 months ago
Nuno Campos	806a54908c	Runnable graph viz improvements (#20529 ) - Add conditional: bool property to json representation of the graphs - Add option to generate mermaid graph stripped of styles (useful as a text representation of graph)	5 months ago
Nuno Campos	f3aa26d6bf	Fix getattr in runnable binding for cases where config is passed in as arg too (#20528 ) …s arg too Thank you for contributing to LangChain! - [ ] PR title: "package: description" - Where "package" is whichever of langchain, community, core, experimental, etc. is being modified. Use "docs: ..." for purely docs changes, "templates: ..." for template changes, "infra: ..." for CI changes. - Example: "community: add foobar LLM" - [ ] PR message: *Delete this entire checklist* and replace with - Description: a description of the change - Issue: the issue # it fixes, if applicable - Dependencies: any dependencies required for this change - Twitter handle: if your PR gets announced, and you'd like a mention, we'll gladly shout you out! - [ ] Add tests and docs: 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. - [ ] Lint and test: Run `make format`, `make lint` and `make test` from the root of the package(s) you've modified. See contribution guidelines for more: https://python.langchain.com/docs/contributing/ Additional guidelines: - Make sure optional dependencies are imported within a function. - Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. - Most PRs should not touch more than one package. - Changes should be backwards compatible. - If you are adding something to community, do not re-import it in langchain. If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, hwchase17.	5 months ago
Leonid Ganeline	45d045b2c5	core[minor], langchain[patch]: `tools` dependencies refactoring (#18759 ) The `langchain.tools` [namespace](https://api.python.langchain.com/en/latest/langchain_api_reference.html#module-langchain.tools) can be completely eliminated by moving one class and 3 functions into `core`. It makes sense since the class and functions are very core.	5 months ago
Ravindu Somawansa	5acc7ba622	community[minor]: Add glue catalog loader (#20220 ) Add Glue Catalog loader	5 months ago
Dawson Bauer	aab075345e	core[patch]: Fix imports defined in messages sub-package (#20500 ) core[patch]: Fix imports defined in messages sub-package (#20500)	5 months ago
Erick Friis	90184255f8	core: release 0.1.43 (#20489 )	5 months ago
Erick Friis	7997f3b7f8	core: forward config params to default (#20402 ) nuno's fault not mine --------- Co-authored-by: Nuno Campos <nuno@boringbits.io> Co-authored-by: Nuno Campos <nuno@langchain.dev>	5 months ago
Nuno Campos	97b2191e99	core: Add concept of conditional edge to graph rendering (#20480 ) - implement for mermaid, graphviz and ascii - this is to be used in langgraph	5 months ago
Ángel Igareta	60c7a17781	Remove logic to exclude intermediate nodes from rendering time (#20459 ) Description: For simplicity, migrate the logic of excluding intermediate nodes in the .get_graph() of langgraph package (https://github.com/langchain-ai/langgraph/pull/310) at graph creation time instead of graph rendering time. Note: #20381 needs to be approved first --------- Co-authored-by: Angel Igareta <angel.igareta@klarna.com> Co-authored-by: Nuno Campos <nuno@langchain.dev> Co-authored-by: Nuno Campos <nuno@boringbits.io>	5 months ago
Ángel Igareta	d55a365c6c	Fix CDN URL in mermaid graph renderer (#20381 ) Description of features on mermaid graph renderer: - Fixing CDN to use official Mermaid JS CDN: https://www.jsdelivr.com/package/npm/mermaid?tab=files - Add device_scale_factor to allow increasing quality of resulting PNG.	5 months ago
Alexander Smirnov	ece008f117	docs: Refine RunnablePassthrough docstring (#19812 ) Description: This update refines the documentation for `RunnablePassthrough` by removing an unnecessary import and correcting a minor syntactical error in the example provided. This change enhances the clarity and correctness of the documentation, ensuring that users have a more accurate guide to follow. Issue: N/A Dependencies: None This PR focuses solely on documentation improvements, specifically targeting the `RunnablePassthrough` class within the `langchain_core` module. By clarifying the example provided in the docstring, users are offered a more straightforward and error-free guide to utilizing the `RunnablePassthrough` class effectively. As this is a documentation update, it does not include changes that require new integrations, tests, or modifications to dependencies. It adheres to the guidelines of minimal package interference and backward compatibility, ensuring that the overall integrity and functionality of the LangChain package remain unaffected. Thank you for considering this documentation refinement for inclusion in the LangChain project.	5 months ago
ccurme	38faa74c23	community[patch]: update use of deprecated llm methods (#20393 ) .predict and .predict_messages for BaseLanguageModel and BaseChatModel	5 months ago
Bagatur	f1248f8d9a	core[patch]: configurable init params (#20070 ) Proposed fix for #20061. need to test --------- Co-authored-by: Erick Friis <erick@langchain.dev>	5 months ago
Erick Friis	29282371db	core: bind_tools interface on basechatmodel (#20360 )	5 months ago
Eugene Yurtsev	2900720cd3	core[patch]: Update documentation for base retriever (#20345 ) Updating in code documentation for base retriever to direct folks toward the .invoke and .ainvoke methods + explain how to implement	6 months ago
Eugene Yurtsev	653489a1a9	docs: Update documentation for custom LLMs (#19972 ) Update documentation for customizing LLMs	6 months ago
Bagatur	e72330aacc	core[patch]: Release 0.1.42 (#20332 )	6 months ago
ccurme	795c728f71	mistral[patch]: add IDs to tool calls (#20299 ) Mistral gives us one ID per response, no individual IDs for tool calls. ```python from langchain.agents import AgentExecutor, create_tool_calling_agent, tool from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder from langchain_mistralai import ChatMistralAI prompt = ChatPromptTemplate.from_messages( [ ("system", "You are a helpful assistant"), ("human", "{input}"), MessagesPlaceholder("agent_scratchpad"), ] ) model = ChatMistralAI(model="mistral-large-latest", temperature=0) @tool def magic_function(input: int) -> int: """Applies a magic function to an input.""" return input + 2 tools = [magic_function] agent = create_tool_calling_agent(model, tools, prompt) agent_executor = AgentExecutor(agent=agent, tools=tools, verbose=True) agent_executor.invoke({"input": "what is the value of magic_function(3)?"}) ``` --------- Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>	6 months ago
Eugene Yurtsev	f02f708f52	core[patch]: For now remove user warning (#20321 ) Remove warning since it creates a lot of noise.	6 months ago
Bagatur	cb25fa0d55	core[patch]: fix ChatGeneration.text with content blocks (#20294 )	6 months ago
Bagatur	03b247cca1	core[patch]: include tool_calls in ai msg chunk serialization (#20291 )	6 months ago
Nuno Campos	15271ac832	core: mustache prompt templates (#19980 ) Co-authored-by: Erick Friis <erick@langchain.dev>	6 months ago
ccurme	21c1ce0bc1	update agents to use tool call messages (#20074 ) ```python from langchain.agents import AgentExecutor, create_tool_calling_agent, tool from langchain_anthropic import ChatAnthropic from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder prompt = ChatPromptTemplate.from_messages( [ ("system", "You are a helpful assistant"), MessagesPlaceholder("chat_history", optional=True), ("human", "{input}"), MessagesPlaceholder("agent_scratchpad"), ] ) model = ChatAnthropic(model="claude-3-opus-20240229") @tool def magic_function(input: int) -> int: """Applies a magic function to an input.""" return input + 2 tools = [magic_function] agent = create_tool_calling_agent(model, tools, prompt) agent_executor = AgentExecutor(agent=agent, tools=tools, verbose=True) agent_executor.invoke({"input": "what is the value of magic_function(3)?"}) ``` ``` > Entering new AgentExecutor chain... Invoking: `magic_function` with `{'input': 3}` responded: [{'text': '<thinking>\nThe user has asked for the value of magic_function applied to the input 3. Looking at the available tools, magic_function is the relevant one to use here, as it takes an integer input and returns an integer output.\n\nThe magic_function has one required parameter:\n- input (integer)\n\nThe user has directly provided the value 3 for the input parameter. Since the required parameter is present, we can proceed with calling the function.\n</thinking>', 'type': 'text'}, {'id': 'toolu_01HsTheJPA5mcipuFDBbJ1CW', 'input': {'input': 3}, 'name': 'magic_function', 'type': 'tool_use'}] 5 Therefore, the value of magic_function(3) is 5. > Finished chain. {'input': 'what is the value of magic_function(3)?', 'output': 'Therefore, the value of magic_function(3) is 5.'} ``` --------- Co-authored-by: Bagatur <baskaryan@gmail.com> Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>	6 months ago
Erick Friis	9eb6f538f0	infra, multiple: rc release versions (#20252 )	6 months ago
Bagatur	a43b9e4f33	core[patch]: Pre-release 0.1.42-rc.1 (#20248 )	6 months ago
Bagatur	9514bc4d67	core[minor], ...: add tool calls message (#18947 ) core[minor], langchain[patch], openai[minor], anthropic[minor], fireworks[minor], groq[minor], mistralai[minor] ```python class ToolCall(TypedDict): name: str args: Dict[str, Any] id: Optional[str] class InvalidToolCall(TypedDict): name: Optional[str] args: Optional[str] id: Optional[str] error: Optional[str] class ToolCallChunk(TypedDict): name: Optional[str] args: Optional[str] id: Optional[str] index: Optional[int] class AIMessage(BaseMessage): ... tool_calls: List[ToolCall] = [] invalid_tool_calls: List[InvalidToolCall] = [] ... class AIMessageChunk(AIMessage, BaseMessageChunk): ... tool_call_chunks: Optional[List[ToolCallChunk]] = None ... ``` Important considerations: - Parsing logic occurs within different providers; - ~Changing output type is a breaking change for anyone doing explicit type checking;~ - ~Langsmith rendering will need to be updated: https://github.com/langchain-ai/langchainplus/pull/3561~ - ~Langserve will need to be updated~ - Adding chunks: - ~AIMessage + ToolCallsMessage = ToolCallsMessage if either has non-null .tool_calls.~ - Tool call chunks are appended, merging when having equal values of `index`. - additional_kwargs accumulate the normal way. - During streaming: - ~Messages can change types (e.g., from AIMessageChunk to AIToolCallsMessageChunk)~ - Output parsers parse additional_kwargs (during .invoke they read off tool calls). Packages outside of `partners/`: - https://github.com/langchain-ai/langchain-cohere/pull/7 - https://github.com/langchain-ai/langchain-google/pull/123/files --------- Co-authored-by: Chester Curme <chester.curme@gmail.com>	6 months ago
Bagatur	a07238d14e	core[patch]: Release 0.1.41 (#20233 )	6 months ago
Christophe Bornet	f43b48aebc	core[minor]: Implement aformat_messages for _StringImageMessagePromptTemplate (#20036 )	6 months ago
Christophe Bornet	19001e6cb9	core[minor]: Implement aformat for FewShotPromptWithTemplates (#20039 )	6 months ago
William FH	039b7a472d	[core] fix: manually specifying run_id for chat models.invoke() and .ainvoke() (#20082 )	6 months ago
Guangdong Liu	5a76087965	langchain-core[minor]: Allow passing local cache to language models (#19331 ) After this PR it will be possible to pass a cache instance directly to a language model. This is useful to allow different language models to use different caches if needed. - Issue: close #19276 --------- Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>	6 months ago
Eugene Yurtsev	e4fc0e7502	core[patch]: Document BaseCache abstraction in code (#20046 ) Document the base cache abstraction in the cache.	6 months ago
Christophe Bornet	4d8a6a27a3	core[minor]: Implement aformat_prompt and ainvoke in BasePromptTemplate (#20035 )	6 months ago
Christophe Bornet	7e5c1905b1	core[minor]: Add async aformat_document method (#20037 )	6 months ago
Christophe Bornet	927793d088	Merge pull request #20038 * Implement aformat_messages for ChatMessagePromptTemplate	6 months ago
Bagatur	209de0a561	anthropic[minor]: tool use (#20016 )	6 months ago
Jan Nissen	31e3ecc728	core[minor]: support pydantic V2 for JSONOutputParser, allow for other sources of JSON schemas (#19716 ) This PR supports using Pydantic v2 objects to generate the schema for the JSONOutputParser (#19441). This also adds a `json_schema` parameter to allow users to pass any JSON schema to validate with, not just pydantic.	6 months ago
Christophe Bornet	f97de4e275	core[minor]: Add aformat to FewShotPromptTemplate (#19652 )	6 months ago
Utkarsha Gupte	b27f81c51c	core[patch]: mypy ignore fixes #17048 (#19931 ) core/langchain_core/_api[Patch]: mypy ignore fixes #17048 Related to #17048 Applied mypy fixes to below two files: libs/core/langchain_core/_api/deprecation.py libs/core/langchain_core/_api/beta_decorator.py Summary of Fixes: Issue 1 class _deprecated_property(type(obj)): # type: ignore error: Unsupported dynamic base class "type" [misc] Fix: 1. Added an __init__ method to _deprecated_property to initialize the fget, fset, fdel, and __doc__ attributes. 2. In the __get__, __set__, and __delete__ methods, we now use the self.fget, self.fset, and self.fdel attributes to call the original methods after emitting the warning.  3. The finalize function now creates an instance of _deprecated_property with the fget, fset, fdel, and doc attributes from the original obj property.   Issue 2     def finalize( # type: ignore wrapper: Callable[..., Any], new_doc: str ) -> T:   error: All conditional function variants must have identical signatures    Fix: Ensured that both definitions of the finalize function have the same signature Twitter Handle - https://x.com/gupteutkarsha?s=11&t=uwHe4C3PPpGRvoO5Qpm1aA	6 months ago
Erick Friis	83f62fdacf	core: fix try_load_from_hub for older langchain versions load_chain (#19964 )	6 months ago
Eugene Yurtsev	d293431e10	core[minor]: Add aload to document loader (#19936 ) Add aload to document loader	6 months ago
Ángel Igareta	31a641a155	core: fix return of draw_mermaid_png and change to not save image by default (#19950 ) - Description: Improvement for #19599: fixing missing return of graph.draw_mermaid_png and improve it to make the saving of the rendered image optional Co-authored-by: Angel Igareta <angel.igareta@klarna.com>	6 months ago
Bagatur	4328c54aab	core[patch]: Release 0.1.39 (#19940 )	6 months ago
Nuno Campos	f4568fe0c6	core: BaseChatModel modify chat message before passing to run_manager (#19939 ) Thank you for contributing to LangChain! - [ ] PR title: "package: description" - Where "package" is whichever of langchain, community, core, experimental, etc. is being modified. Use "docs: ..." for purely docs changes, "templates: ..." for template changes, "infra: ..." for CI changes. - Example: "community: add foobar LLM" - [ ] PR message: *Delete this entire checklist* and replace with - Description: a description of the change - Issue: the issue # it fixes, if applicable - Dependencies: any dependencies required for this change - Twitter handle: if your PR gets announced, and you'd like a mention, we'll gladly shout you out! - [ ] Add tests and docs: 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. - [ ] Lint and test: Run `make format`, `make lint` and `make test` from the root of the package(s) you've modified. See contribution guidelines for more: https://python.langchain.com/docs/contributing/ Additional guidelines: - Make sure optional dependencies are imported within a function. - Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. - Most PRs should not touch more than one package. - Changes should be backwards compatible. - If you are adding something to community, do not re-import it in langchain. If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, hwchase17.	6 months ago
Erick Friis	f0d5b59962	core[patch]: remove requests (#19891 ) Removes required usage of `requests` from `langchain-core`, all of which has been deprecated. - removes Tracer V1 implementations - removes old `try_load_from_hub` github-based hub implementations Removal done in a way where imports will still succeed, and usage will fail with a `RuntimeError`.	6 months ago
Bagatur	3218463f6a	core[patch]: Release 0.1.38 (#19895 )	6 months ago
Mohammad Mohtashim	9ae2df36fc	Core[major]: Base Tracer to propagate raw output from tool for on_tool_end (#18932 ) This PR completes work for PR #18798 to expose raw tool output in on_tool_end. Affected APIs: * astream_log * astream_events * callbacks sent to langsmith via langsmith-sdk * Any other code that relies on BaseTracer! --------- Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com> Co-authored-by: Bagatur <baskaryan@gmail.com>	6 months ago
Nuno Campos	2ae6dcdf01	core: Assign missing message ids in BaseChatModel (#19863 ) - This ensures ids are stable across streamed chunks - Multiple messages in batch call get separate ids - Also fix ids being dropped when combining message chunks Thank you for contributing to LangChain! - [ ] PR title: "package: description" - Where "package" is whichever of langchain, community, core, experimental, etc. is being modified. Use "docs: ..." for purely docs changes, "templates: ..." for template changes, "infra: ..." for CI changes. - Example: "community: add foobar LLM" - [ ] PR message: *Delete this entire checklist* and replace with - Description: a description of the change - Issue: the issue # it fixes, if applicable - Dependencies: any dependencies required for this change - Twitter handle: if your PR gets announced, and you'd like a mention, we'll gladly shout you out! - [ ] Add tests and docs: 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. - [ ] Lint and test: Run `make format`, `make lint` and `make test` from the root of the package(s) you've modified. See contribution guidelines for more: https://python.langchain.com/docs/contributing/ Additional guidelines: - Make sure optional dependencies are imported within a function. - Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. - Most PRs should not touch more than one package. - Changes should be backwards compatible. - If you are adding something to community, do not re-import it in langchain. If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, hwchase17.	6 months ago
Mayank Solanki	d5c412b0a9	core: Add docs for RunnableConfigurableFields (#19849 ) - [x] docs: core: Add docs for `RunnableConfigurableFields` - Description: Added incode docs for `RunnableConfigurableFields` with example - Issue: #18803 - Dependencies: NA - Twitter handle: NA --------- Co-authored-by: Chester Curme <chester.curme@gmail.com>	6 months ago
Ángel Igareta	c2ccf22dfd	core: generate mermaid syntax and render visual graph (#19599 ) - Description: Add functionality to generate Mermaid syntax and render flowcharts from graph data. This includes support for custom node colors and edge curve styles, as well as the ability to export the generated graphs to PNG images using either the Mermaid.INK API or Pyppeteer for local rendering. - Dependencies: Optional dependencies are `pyppeteer` if rendering wants to be done using Pypeteer and Javascript code. --------- Co-authored-by: Angel Igareta <angel.igareta@klarna.com> Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>	6 months ago
Bagatur	08c10bd66a	core[patch]: Release 0.1.37 (#19831 )	6 months ago
Harrison Chase	56525f2ac1	dont mutate metadata/tags (#19742 )	6 months ago
Christophe Bornet	6b2b511f68	core[minor]: Add aformat_messages to FewShotChatMessagePromptTemplate and ChatPromptTemplate (#19648 ) Needed since the example selector may use a vector store.	6 months ago
ale-delfino	0df76bee37	core[patch]:: XML parser to cover the case when the xml only contains the root level tag (#17456 ) Description: Fix xml parser to handle strings that only contain the root tag Issue: N/A Dependencies: None Twitter handle: N/A A valid xml text can contain only the root level tag. Example: <body> Some text here </body> The example above is a valid xml string. If parsed with the current implementation the result is {"body": []}. This fix checks if the root level text contains any non-whitespace character and if that's the case it returns {root.tag: root.text}. The result is that the above text is correctly parsed as {"body": "Some text here"} @ale-delfino Thank you for contributing to LangChain! Checklist: - [x] PR title: Please title your PR "package: description", where "package" is whichever of langchain, community, core, experimental, etc. is being modified. Use "docs: ..." for purely docs changes, "templates: ..." for template changes, "infra: ..." for CI changes. - Example: "community: add foobar LLM" - [x] PR message: Delete this entire template message and replace it with the following bulleted list - Description: a description of the change - Issue: the issue # it fixes, if applicable - Dependencies: any dependencies required for this change - Twitter handle: if your PR gets announced, and you'd like a mention, we'll gladly shout you out! - [x] Pass lint and test: Run `make format`, `make lint` and `make test` from the root of the package(s) you've modified to check that you're passing lint and testing. See contribution guidelines for more information on how to write/run tests, lint, etc: https://python.langchain.com/docs/contributing/ - [x] Add tests and docs: 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. Additional guidelines: - Make sure optional dependencies are imported within a function. - Please do not add dependencies to pyproject.toml files (even optional ones) unless they are required for unit tests. - Most PRs should not touch more than one package. - Changes should be backwards compatible. - If you are adding something to community, do not re-import it in langchain. If no one reviews your PR within a few days, please @-mention one of @baskaryan, @efriis, @eyurtsev, @hwchase17. --------- Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>	6 months ago
Luca Dorigo	f19229c564	core[patch]: fix beta, deprecated typing (#18877 ) Description: While not technically incorrect, the TypeVar used for the `@beta` decorator prevented pyright (and thus most vscode users) from correctly seeing the types of functions/classes decorated with `@beta`. This is in part due to a small bug in pyright (https://github.com/microsoft/pyright/issues/7448 ) - however, the `Type` bound in the typevar `C = TypeVar("C", Type, Callable)` is not doing anything - classes are `Callables` by default, so by my understanding binding to `Type` does not actually provide any more safety - the modified annotation still works correctly for both functions, properties, and classes. --------- Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com> Co-authored-by: Bagatur <baskaryan@gmail.com>	6 months ago
aditya thomas	263ee78886	core[runnables]: docstring for class RunnableSerializable, method configurable_fields (#19722 ) Description: Update to the docstring for class RunnableSerializable, method configurable_fields Issue: [Add in code documentation to core Runnable methods #18804](https://github.com/langchain-ai/langchain/issues/18804) Dependencies: None --------- Co-authored-by: Chester Curme <chester.curme@gmail.com>	6 months ago
aditya thomas	ec4dcfca7f	core[runnables]: docstring of class RunnableSerializable, method configurable_alternatives (#19724 ) Description: Update to the docstring for class RunnableSerializable, method configurable_alternatives Issue: [Add in code documentation to core Runnable methods #18804](https://github.com/langchain-ai/langchain/issues/18804) Dependencies: None --------- Co-authored-by: Chester Curme <chester.curme@gmail.com>	6 months ago
Guangdong Liu	0571f886d1	core[patch]: Fix jsonOutputParser fails if a json value contains ``` inside it. (#19717 ) - Issue: fix #19646 - @baskaryan, @eyurtsev PTAL	6 months ago
Erick Friis	8c2ed85a45	core[patch], infra: release 0.1.36, run partner CI on core PRs (#19688 )	6 months ago
Nuno Campos	fdfb51ad8d	core: Two updates to chat model interface (#19684 ) - .stream() and .astream() call on_llm_new_token, removing the need for subclasses to do so. Backwards compatible because now we don't pass run_manager into ._stream and ._astream - .generate() and .agenerate() now handle `stream: bool` kwarg for _generate and _agenerate. Subclasses handle this arg by delegating to ._stream(), now one less thing they need to do. Backwards compat because this is an optional arg that we now never pass to the subclasses - .generate() and .agenerate() now inspect callback handlers to decide on a default value for stream:bool if not passed in. This auto enables streaming when using astream_events and astream_log - as a result of these three changes any usage of .astream_events and .astream_log should now yield chat model stream events - In future PRs we can update all subclasses to reflect these two things now handled by base class, but in meantime all will continue to work	6 months ago
Kahlil Wehmeyer	9c08cdea92	core[patch]: ToolException docs/exception message (#17590 ) Description: This PR adds a slightly more helpful message to a Tool Exception ``` # current state langchain_core.tools.ToolException: Too many arguments to single-input tool # proposed state langchain_core.tools.ToolException: Too many arguments to single-input tool. Consider using a StructuredTool instead. ``` Issue: Somewhat discussed here 👉 #6197 Dependencies: None Twitter handle: N/A --------- Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>	6 months ago
Christophe Bornet	33fa8cfcd0	core[minor]: Add async methods to MaxMarginalRelevanceExampleSelector (#19639 )	6 months ago

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