langchain

Commit Graph

Author	SHA1	Message	Date
ccurme	0f7569ddbc	core[patch]: enable RunnableWithMessageHistory without config (#23775 ) Feedback that `RunnableWithMessageHistory` is unwieldy compared to ConversationChain and similar legacy abstractions is common. Legacy chains using memory typically had no explicit notion of threads or separate sessions. To use `RunnableWithMessageHistory`, users are forced to introduce this concept into their code. This possibly felt like unnecessary boilerplate. Here we enable `RunnableWithMessageHistory` to run without a config if the `get_session_history` callable has no arguments. This enables minimal implementations like the following: ```python from langchain_core.chat_history import InMemoryChatMessageHistory from langchain_core.runnables.history import RunnableWithMessageHistory from langchain_openai import ChatOpenAI llm = ChatOpenAI(model="gpt-3.5-turbo-0125") memory = InMemoryChatMessageHistory() chain = RunnableWithMessageHistory(llm, lambda: memory) chain.invoke("Hi I'm Bob") # Hello Bob! chain.invoke("What is my name?") # Your name is Bob. ```	3 months ago
Nuno Campos	947628311b	core[patch]: Accept configurable keys top-level (#23806 ) Co-authored-by: Bagatur <baskaryan@gmail.com>	3 months ago
Will Badart	74e3d796f1	core[patch]: ensure `iterator_` in scope for `_atransform_stream_with_config` except (#24454 ) Before, if an exception was raised in the outer `try` block in `Runnable._atransform_stream_with_config` before `iterator_` is assigned, the corresponding `finally` block would blow up with an `UnboundLocalError`: ```txt UnboundLocalError: cannot access local variable 'iterator_' where it is not associated with a value ``` By assigning an initial value to `iterator_` before entering the `try` block, this commit ensures that the `finally` can run, and not bury the "true" exception under a "During handling of the above exception [...]" traceback. Thanks for your consideration!	3 months ago
Eugene Yurtsev	5e48f35fba	core[minor]: Relax constraints on type checking for tools and parsers (#24459 ) This will allow tools and parsers to accept pydantic models from any of the following namespaces: * pydantic.BaseModel with pydantic 1 * pydantic.BaseModel with pydantic 2 * pydantic.v1.BaseModel with pydantic 2	3 months ago
Eun Hye Kim	9aae8ef416	core[patch]: Fix utils.json_schema.dereference_refs (#24335 KeyError: 400 in JSON schema processing) (#24337 ) Description: This PR fixes a KeyError: 400 that occurs in the JSON schema processing within the reduce_openapi_spec function. The _retrieve_ref function in json_schema.py was modified to handle missing components gracefully by continuing to the next component if the current one is not found. This ensures that the OpenAPI specification is fully interpreted and the agent executes without errors. Issue: Fixes issue #24335 Dependencies: No additional dependencies are required for this change. Twitter handle: @lunara_x	3 months ago
Erick Friis	ef049769f0	core[patch]: Release 0.2.22 (#24423 ) Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>	3 months ago
Bagatur	cd19ba9a07	core[patch]: core lint fix (#24447 )	3 months ago
Nuno Campos	62b6965d2a	core: In ensure_config don't copy dunder configurable keys to metadata (#24420 )	3 months ago
Eugene Yurtsev	ef22ebe431	standard-tests[patch]: Add pytest assert rewrites (#24408 ) This will surface nice error messages in subclasses that fail assertions.	3 months ago
Eugene Yurtsev	f62b323108	core[minor]: Support all versions of pydantic base model in argsschema (#24418 ) This adds support to any pydantic base model for tools. The only potential issue is that `get_input_schema()` will not always return a v1 base model.	3 months ago
Eugene Yurtsev	570566b858	core[patch]: Update API reference for astream events (#24359 ) Update the API reference for astream events to include information about custom events.	3 months ago
Bagatur	a4c101ae97	core[patch]: Release 0.2.21 (#24372 )	3 months ago
William FH	c5a07e2dd8	core[patch]: add InjectedToolArg annotation (#24279 ) ```python from typing_extensions import Annotated from langchain_core.tools import tool, InjectedToolArg from langchain_anthropic import ChatAnthropic @tool def multiply(x: int, y: int, not_for_model: Annotated[dict, InjectedToolArg]) -> str: """multiply.""" return x * y ChatAnthropic(model='claude-3-sonnet-20240229',).bind_tools([multiply]).invoke('5 times 3').tool_calls ''' -> [{'name': 'multiply', 'args': {'x': 5, 'y': 3}, 'id': 'toolu_01Y1QazYWhu4R8vF4hF4z9no', 'type': 'tool_call'}] ''' ``` --------- Co-authored-by: Bagatur <baskaryan@gmail.com> Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>	3 months ago
Eugene Yurtsev	96bac8e20d	core[patch]: Fix regression requiring input_variables in few chat prompt templates (#24360 ) * Fix regression that requires users passing input_variables=[]. * Regression introduced by my own changes to this PR: https://github.com/langchain-ai/langchain/pull/22851	3 months ago
Eugene Yurtsev	9e4a0e76f6	core[patch]: Fix one unit test for chat prompt template (#24362 ) Minor change that fixes a unit test that had missing assertions.	3 months ago
Bagatur	80e7cd6cff	core[patch]: Release 0.2.20 (#24322 )	3 months ago
Eugene Yurtsev	616196c620	Docs: Add how to dispatch custom callback events (#24278 ) * Add how-to guide for dispatching custom callback events. * Add links from index to the how to guide * Add link from streaming from within a tool * Update versionadded to correct release https://github.com/langchain-ai/langchain/releases/tag/langchain-core%3D%3D0.2.15	3 months ago
Leonid Ganeline	5ccf8ebfac	core: docstrings `vectorstores` update (#24281 ) Added missed docstrings. Formatted docstrings to the consistent form. --------- Co-authored-by: Erick Friis <erick@langchain.dev>	3 months ago
Bagatur	dc42279eb5	core[patch]: fix Typing.cast import (#24313 ) Fixes #24287	3 months ago
Leonid Ganeline	5fcf2ef7ca	core: docstrings `documents` (#23506 ) Added missed docstrings. Formatted docstrings to the consistent form.	3 months ago
Shenhai Ran	5f2dea2b20	core[patch]: Add encoding options when create prompt template from a file (#24054 ) - Uses default utf-8 encoding for loading prompt templates from file --------- Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>	3 months ago
Leonid Ganeline	198b85334f	core[patch]: docstrings `langchain_core/` files update (#24285 ) Added missed docstrings. Formatted docstrings to the consistent form.	3 months ago
Tibor Reiss	1c753d1e81	core[patch]: Update typing for template format to include jinja2 as a Literal (#24144 ) Fixes #23929 via adjusting the typing	3 months ago
JP-Ellis	f77659463a	core[patch]: allow message utils to work with lcel (#23743 ) The functions `convert_to_messages` has had an expansion of the arguments it can take: 1. Previously, it only could take a `Sequence` in order to iterate over it. This has been broadened slightly to an `Iterable` (which should have no other impact). 2. Support for `PromptValue` and `BaseChatPromptTemplate` has been added. These are generated when combining messages using the overloaded `+` operator. Functions which rely on `convert_to_messages` (namely `filter_messages`, `merge_message_runs` and `trim_messages`) have had the type of their arguments similarly expanded. Resolves #23706. <!-- If no one reviews your PR within a few days, please @-mention one of baskaryan, efriis, eyurtsev, ccurme, vbarda, hwchase17. --> --------- Signed-off-by: JP-Ellis <josh@jpellis.me> Co-authored-by: Bagatur <baskaryan@gmail.com>	3 months ago
Harold Martin	ccdaf14eff	docs: Spell check fixes (#24217 ) Description: Spell check fixes for docs, comments, and a couple of strings. No code change e.g. variable names. Issue: none Dependencies: none Twitter handle: hmartin	3 months ago
Leonid Ganeline	cacdf96f9c	core docstrings `tracers` update (#24211 ) Added missed docstrings. Formatted docstrings to the consistent form.	3 months ago
Leonid Ganeline	36ee083753	core: docstrings `utils` update (#24213 ) Added missed docstrings. Formatted docstrings to the consistent form.	3 months ago
Bagatur	620b118c70	core[patch]: Release 0.2.19 (#24272 )	3 months ago
ccurme	888fbc07b5	core[patch]: support passing `args_schema` through `as_tool` (#24269 ) Note: this allows the schema to be passed in positionally. ```python from langchain_core.pydantic_v1 import BaseModel, Field from langchain_core.runnables import RunnableLambda class Add(BaseModel): """Add two integers together.""" a: int = Field(..., description="First integer") b: int = Field(..., description="Second integer") def add(input: dict) -> int: return input["a"] + input["b"] runnable = RunnableLambda(add) as_tool = runnable.as_tool(Add) as_tool.args_schema.schema() ``` ``` {'title': 'Add', 'description': 'Add two integers together.', 'type': 'object', 'properties': {'a': {'title': 'A', 'description': 'First integer', 'type': 'integer'}, 'b': {'title': 'B', 'description': 'Second integer', 'type': 'integer'}}, 'required': ['a', 'b']} ```	3 months ago
Bagatur	0da5078cad	langchain[minor]: Generic configurable model (#23419 ) alternative to [23244](https://github.com/langchain-ai/langchain/pull/23244). allows you to use chat model declarative methods ![Screenshot 2024-06-25 at 1 07 10 PM](https://github.com/langchain-ai/langchain/assets/22008038/910d1694-9b7b-46bc-bc2e-3792df9321d6)	3 months ago
Bagatur	d0728b0ba0	core[patch]: add tool name to tool message (#24243 ) Copying current ToolNode behavior	3 months ago
Bagatur	5c3e2612da	core[patch]: Release 0.2.18 (#24230 )	3 months ago
Bagatur	65321bf975	core[patch]: fix ToolCall "type" when streaming (#24218 )	3 months ago
Eugene Yurtsev	8d82a0d483	core[patch]: Mark GraphVectorStore as beta (#24195 ) * This PR marks graph vectorstore as beta	3 months ago
Bagatur	0a1e475a30	core[patch]: Release 0.2.17 (#24189 )	3 months ago
Bagatur	6166ea67a8	core[minor]: rename ToolMessage.raw_output -> artifact (#24185 )	3 months ago
Leonid Ganeline	aa3e3cfa40	core[patch]: docstrings `runnables` update (#24161 ) Added missed docstrings. Formatted docstrings to the consistent form.	3 months ago
Erick Friis	1132fb801b	core: release 0.2.16 (#24159 )	3 months ago
Nuno Campos	1d37aa8403	core: Remove extra newline (#24157 )	3 months ago
Bagatur	8d100c58de	core[patch]: Tool accept RunnableConfig (#24143 ) Relies on #24038 --------- Co-authored-by: Erick Friis <erick@langchain.dev>	3 months ago
Bagatur	5fd1e67808	core[minor], integrations...[patch]: Support ToolCall as Tool input and ToolMessage as Tool output (#24038 ) Changes: - ToolCall, InvalidToolCall and ToolCallChunk can all accept a "type" parameter now - LLM integration packages add "type" to all the above - Tool supports ToolCall inputs that have "type" specified - Tool outputs ToolMessage when a ToolCall is passed as input - Tools can separately specify ToolMessage.content and ToolMessage.raw_output - Tools emit events for validation errors (using on_tool_error and on_tool_end) Example: ```python @tool("structured_api", response_format="content_and_raw_output") def _mock_structured_tool_with_raw_output( arg1: int, arg2: bool, arg3: Optional[dict] = None ) -> Tuple[str, dict]: """A Structured Tool""" return f"{arg1} {arg2}", {"arg1": arg1, "arg2": arg2, "arg3": arg3} def test_tool_call_input_tool_message_with_raw_output() -> None: tool_call: Dict = { "name": "structured_api", "args": {"arg1": 1, "arg2": True, "arg3": {"img": "base64string..."}}, "id": "123", "type": "tool_call", } expected = ToolMessage("1 True", raw_output=tool_call["args"], tool_call_id="123") tool = _mock_structured_tool_with_raw_output actual = tool.invoke(tool_call) assert actual == expected tool_call.pop("type") with pytest.raises(ValidationError): tool.invoke(tool_call) actual_content = tool.invoke(tool_call["args"]) assert actual_content == expected.content ``` --------- Co-authored-by: Erick Friis <erick@langchain.dev>	3 months ago
Bagatur	eeb996034b	core[patch]: Release 0.2.15 (#24149 )	3 months ago
Nuno Campos	03fba07d15	core[patch]: Update styles for mermaid graphs (#24147 )	3 months ago
ccurme	8ee8ca7c83	core[patch]: propagate `parse_docstring` to tool decorator (#24123 ) Disabled by default. ```python from langchain_core.tools import tool @tool(parse_docstring=True) def foo(bar: str, baz: int) -> str: """The foo. Args: bar: this is the bar baz: this is the baz """ return bar foo.args_schema.schema() ``` ```json { "title": "fooSchema", "description": "The foo.", "type": "object", "properties": { "bar": { "title": "Bar", "description": "this is the bar", "type": "string" }, "baz": { "title": "Baz", "description": "this is the baz", "type": "integer" } }, "required": [ "bar", "baz" ] } ```	3 months ago
Eugene Yurtsev	4ba14adec6	core[patch]: Clean up indexing test code (#24139 ) Refactor the code to use the existing InMemroyVectorStore. This change is needed for another PR that moves some of the imports around (and messes up the mock.patch in this file)	3 months ago
ccurme	122e80e04d	core[patch]: add versionadded to `as_tool` (#24138 )	3 months ago
Erick Friis	c4417ea93c	core: release 0.2.14, remove poetry 1.7 incompatible flag from root (#24137 )	3 months ago
Nuno Campos	2428984205	core: Add metadata to graph json repr (#24131 ) 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.	3 months ago
Nuno Campos	3e454d7568	core: fix docstring (#24129 )	3 months ago
Nuno Campos	ee3fe20af4	core: mermaid: Render metadata key-value pairs when drawing mermaid graph (#24103 ) - if node is runnable binding with metadata attached	3 months ago

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673 Commits (02f0a29293b1268f5b1d09d55a5f29159eea4814)