langchain

Commit Graph

Author	SHA1	Message	Date
Harrison Chase	b40c80007f	core[minor]: Add utility code to create tool examples (#18602 ) Co-authored-by: Chester Curme <chester.curme@gmail.com>	6 months ago
William FH	e980c14d6a	core[patch]: allow "placeholder" type in from_messages tuples (#19152 ) Co-authored-by: Erick Friis <erick@langchain.dev>	6 months ago
William FH	68298cdc82	[Feat] Accept non-dict if only 1 prompt input variable (#19156 ) For prompt templates with only 1 variable (common in e.g., MessageGraph), it's convenient to wrap the incoming object in the variable before formatting. The downside of this, of course, would be that some number of invocations will successfully format when the user may have intended to format it properly before	7 months ago
Leonid Ganeline	8609afbd10	core[patch]: Update `messages` namespace to fix API reference docs (#19161 ) Classes and functions defined in __init__.py are not parsed into the API Reference. For example: - libs/core/langchain_core/messages/__init__.py : AnyMessage, MessageLikeRepresentation, get_buffer_string(), messages_from_dict(), ... Opinionated: __init__.py is not a typical place to define artifacts. Moved artifacts from __init__ into utils.py. Added `MessageLikeRepresentation` to __all__ since it is used outside of `messages`, for example, in `libs/core/langchain_core/language_models/base.py` Added `_message_from_dict` to __all__ since it is used outside of `messages`(???) I would add `message_from_dict` (without underscore) as an alias. Please, advise.	7 months ago
Eugene Yurtsev	4b3dd34544	core[patch]: Pass sync run manager for sync stream fallback in astream (#19280 ) This PR patches the fallback in chat models and language models to pass in the appropriate version of the run manager (sync vs. async)	7 months ago
Al-Ekram Elahee Hridoy	50f93d86ec	core[minor]: Enhance cache flexibility in BaseChatModel (#17386 ) - Description: Enhanced the `BaseChatModel` to support an `Optional[Union[bool, BaseCache]]` type for the `cache` attribute, allowing for both boolean flags and custom cache implementations. Implemented logic within chat model methods to utilize the provided custom cache implementation effectively. This change aims to provide more flexibility in caching strategies for chat models. - Issue: Implements enhancement request #17242. - Dependencies: No additional dependencies required for this change. --------- Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>	7 months ago
Roshan Santhosh	7afecec280	core: update _rm_titles to account for title argument name bug (#19036 ) Issue : For functions which have an argument with the name 'title', the convert_pydantic_to_openai_function generates an incorrect output and omits the argument all together. This is because the _rm_titles function removes all instances of the the key 'title' from the output. Description : Updates the _rm_titles function to check the presence of the 'type' key as well before removing the 'title' key. As the title key that we wish to omit always has a type key along with it. Potential gap if there is a function defined which has both title and key as argument names, in which case this would fail. Maybe we could set a filter on the function argument names and reject those with keyword argument names. No dependencies. Passed all tests. - [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: Eugene Yurtsev <eyurtsev@gmail.com>	7 months ago
Kangmoon Seo	07de4abe70	core: Fix Exception handling in XMLOutputParser (#19126 ) - Description: - Exception handling in `XMLOutputParser` 1. Add Exception handling at `root = ET.fromstring(text)` // raises `ET.ParseError` 2. Fix Exception class (commonly uses in `BaseOutputParser` class) - AS-IS: raise `ValueError`, `ET.ParserError` without handling ```python # langchain_core/output_parsers/xml.py text = text.strip() if (text.startswith("<") or text.startswith("\n<")) and ( text.endswith(">") or text.endswith(">\n") ): root = ET.fromstring(text) return self._root_to_dict(root) else: raise ValueError(f"Could not parse output: {text}") ``` - TO-BE: raise `OutputParserException` ```python # langchain_core/output_parsers/xml.py text = text.strip() if (text.startswith("<") or text.startswith("\n<")) and ( text.endswith(">") or text.endswith(">\n") ): try: root = ET.fromstring(text) return self._root_to_dict(root) except ET.ParseError: raise OutputParserException(f"Could not parse output: {text}") else: raise OutputParserException(f"Could not parse output: {text}") ``` - Issue: #19107 - Dependencies: None	7 months ago
William FH	780337488e	[Enhancement] Add support for directly providing a run_id (#18990 ) The root run id (~trace id's) is useful for assigning feedback, but the current recommended approach is to use callbacks to retrieve it, which has some drawbacks: 1. Doesn't work for streaming until after the first event 2. Doesn't let you call other endpoints with the same trace ID in parallel (since you have to wait until the call is completed/started to use This PR lets you provide = "run_id" in the runnable config. Couple considerations: 1. For batch calls, we split the trace up into separate trees (to permit better rendering). We keep the provided run ID for the first one and generate a unique one for other elements of the batch. 2. For nested calls, the provided ID is ONLY used on the top root/trace. ### Example Usage ``` chain.invoke("foo", {"run_id": uuid.uuid4()}) ```	7 months ago
Leonid Kuligin	366ba77459	core[minor]: moved fake llms and embeddings to core (#19226 ) - [ ] PR title: "core: moved fake llms and embeddings to core" - [ ] PR message: - Description: moved fake llms and embeddings to core"	7 months ago
Maxime Perrin	aa785fa6ec	core[minor]: allow LLMs async streaming to fallback on sync streaming (#18960 ) - Description: Handling fallbacks when calling async streaming for a LLM that doesn't support it. - Issue: #18920 - Twitter handle:@maximeperrin_ --------- Co-authored-by: Maxime Perrin <mperrin@doing.fr>	7 months ago
Eugene Yurtsev	06165efb5b	core[patch]: RunnablePassthrough transform to autoupgrade to AddableDict (#19051 ) Follow up on https://github.com/langchain-ai/langchain/pull/18743 which missed RunnablePassthrough Issues: https://github.com/langchain-ai/langchain/issues/18741 https://github.com/langchain-ai/langgraph/issues/136 https://github.com/langchain-ai/langserve/issues/504	7 months ago
Nuno Campos	751fb7de20	Add new beta StructuredPrompt (#19080 ) 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.	7 months ago
Nuno Campos	2b7c3c548d	core[minor]: Add Runnable.batch_as_completed (#17603 ) This PR adds `batch as completed` method to the standard Runnable interface. It takes in a list of inputs and yields the corresponding outputs as the inputs are completed.	7 months ago
Naman Jain	75122646b5	core[patch]: fixed circular dependency with json schema (#18657 ) Description: Circular dependencies when parsing references leading to `RecursionError: maximum recursion depth exceeded` issue. This PR address the issue by handling previously seen refs as in any typical DFS to avoid infinite depths. Issue: https://github.com/langchain-ai/langchain/issues/12163 Twitter handle: https://twitter.com/theBhulawat - [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/ --------- Co-authored-by: Bagatur <baskaryan@gmail.com> Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>	7 months ago
Bagatur	18de77cc8c	core[minor]: add streaming support to OAI tool parsers (#18940 ) Co-authored-by: Erick Friis <erick@langchain.dev>	7 months ago
Bagatur	e0e688a277	core[minor]: generation info on msg (#18592 ) related to #16403 #17188	7 months ago
Bagatur	19721246f5	core[patch]: support labeled json schema as tools (#18935 )	7 months ago
Erick Friis	bbb609ac9d	core[patch]: fix arbitrary config keys (#18827 )	7 months ago
Eugene Yurtsev	cdfb5b4ca1	core[minor]: Chat Models to fallback astream to fallback on sync stream if available (#18748 ) Allows all chat models that implement _stream, but not _astream to still have async streaming to work. Amongst other things this should resolve issues with streaming community model implementations through langserve since langserve is exclusively async.	7 months ago
Bagatur	3e29c04213	core[minor]: add BaseMessage.response_metadata (#18699 )	7 months ago
Eugene Yurtsev	6caceb5473	core[patch]: Automatic upgrade to AddableDict in transform and atransform (#18743 ) Automatic upgrade to transform and atransform Closes: https://github.com/langchain-ai/langchain/issues/18741 https://github.com/langchain-ai/langgraph/issues/136 https://github.com/langchain-ai/langserve/issues/504	7 months ago
Eugene Yurtsev	ca299a8e08	Docs: Add custom parsing documentation and extending langchain (#18331 ) * Added extending langchain.mdx -- we'll need to add links as we add more custom documentation * Added partial documentation about parsers	7 months ago
Eugene Yurtsev	8c71f92cb2	core: upgrade mypy to recent mypy (#18753 ) Testing this works per package on CI	7 months ago
Christophe Bornet	4a7d73b39d	community: If load() has been overridden, use it in default lazy_load() (#18690 )	7 months ago
Erick Friis	e1924b3e93	core[patch]: deprecate hwchase17/langchain-hub, address path traversal (#18600 ) Deprecates the old langchain-hub repository. Does not deprecate the new https://smith.langchain.com/hub @PinkDraconian has correctly raised that in the event someone is loading unsanitized user input into the `try_load_from_hub` function, they have the ability to load files from other locations in github than the hwchase17/langchain-hub repository. This PR adds some more path checking to that function and deprecates the functionality in favor of the hub built into LangSmith.	7 months ago
William De Vena	42341bc787	infra: fake model invoke callback prior to yielding token (#18286 ) ## PR title core[patch]: Invoke callback prior to yielding ## PR message Description: Invoke on_llm_new_token callback prior to yielding token in _stream and _astream methods. Issue: https://github.com/langchain-ai/langchain/issues/16913 Dependencies: None Twitter handle: None	7 months ago
William FH	fdab931fd3	[Core] Patch: rm dumpd of outputs from runnables/base (#18295 ) It obstructs evaluations when your return a pydantic object.	7 months ago
Nuno Campos	d9fd1194f5	Remove check preventing passing non-declared config keys (#18276 ) 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.	7 months ago
Harrison Chase	d7c607ca00	core[minor]: move document compressor base (#17910 )	7 months ago
Bagatur	767523f364	core[patch], langchain[patch], templates: move openai functions parsers to core (#18060 ) ![Screenshot 2024-02-23 at 7 48 03 PM](https://github.com/langchain-ai/langchain/assets/22008038/e5540c4d-0020-4ece-869f-ae19db2a1f3f)	7 months ago
Nuno Campos	b1d9ce541d	Add BaseMessage.id (#17835 ) 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.	7 months ago
Bagatur	b5f8cf9509	core[minor], openai[minor], langchain[patch]: BaseLanguageModel.with_structured_output #17302 ) ```python class Foo(BaseModel): bar: str structured_llm = ChatOpenAI().with_structured_output(Foo) ``` --------- Co-authored-by: Erick Friis <erick@langchain.dev>	7 months ago
ccurme	1b0802babe	core: fix .bind when used with RunnableLambda async methods (#17739 ) Description: Here is a minimal example to illustrate behavior: ```python from langchain_core.runnables import RunnableLambda def my_function(args, kwargs): return 3 + kwargs.get("n", 0) runnable = RunnableLambda(my_function).bind(n=1) assert 4 == runnable.invoke({}) assert [4] == list(runnable.stream({})) assert 4 == await runnable.ainvoke({}) assert [4] == [item async for item in runnable.astream({})] ``` Here, `runnable.invoke({})` and `runnable.stream({})` work fine, but `runnable.ainvoke({})` raises ``` TypeError: RunnableLambda._ainvoke.<locals>.func() got an unexpected keyword argument 'n' ``` and similarly for `runnable.astream({})`: ``` TypeError: RunnableLambda._atransform.<locals>.func() got an unexpected keyword argument 'n' ``` Here we assume that this behavior is undesired and attempt to fix it. Issue:* https://github.com/langchain-ai/langchain/issues/17241, https://github.com/langchain-ai/langchain/discussions/16446	7 months ago
Nuno Campos	223e5eff14	Add JSON representation of runnable graph to serialized representation (#17745 ) Sent to LangSmith Thank you for contributing to LangChain! Checklist: - [ ] 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" - [ ] 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! - [ ] 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/ - [ ] 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.	7 months ago
Leonid Ganeline	1d2aa19aee	docs: Fix bug that caused the word "Beta" to appear twice in doc-strings (#17704 ) The current issue: Several beta descriptions in the API Reference are duplicated. For example: `[Beta] Get a context value.[Beta] Get a context value.` for the [ContextGet class](https://api.python.langchain.com/en/latest/core_api_reference.html#module-langchain_core.beta) description. NOTE: I've tested it only with a new ut! I cannot build API Reference locally :( This PR related to #17615	8 months ago
Leonid Ganeline	0835ebad70	docs: Fix bug that caused the word "Deprecated" to appear twice in doc-strings (#17615 ) The current issue: Most of the deprecation descriptions are duplicated. For example: `[Deprecated] Chat Agent.[Deprecated] Chat Agent.` for the [ChatAgent class](https://api.python.langchain.com/en/latest/langchain_api_reference.html#classes) description. NOTE: I've tested it only with new ut! I cannot build API Reference locally :(	8 months ago
Erick Friis	86d3e42853	core[minor]: add name to basemessage (#17539 ) Adds an optional name param to our base message to support passing names into LLMs. OpenAI supports having a name on anything except tool message now (system, ai, user/human).	8 months ago
JongRok BAEK	8d6cc90fc5	langchain.core : Use shallow copy for schema manipulation in JsonOutputParser.get_format_instructions (#17162 ) - Description : Fix: Use shallow copy for schema manipulation in get_format_instructions Prevents side effects on the original schema object by using a dictionary comprehension for a safer and more controlled manipulation of schema key-value pairs, enhancing code reliability. - Issue: #17161 - Dependencies: None - Twitter handle: None	8 months ago
Sergey Kozlov	db6f266d97	core: improve None value processing in merge_dicts() (#17462 ) - Description: fix `None` and `0` merging in `merge_dicts()`, add tests. ```python from langchain_core.utils._merge import merge_dicts assert merge_dicts({"a": None}, {"a": 0}) == {"a": 0} ``` --------- Co-authored-by: Sergey Kozlov <sergey.kozlov@ludditelabs.io>	8 months ago
James Braza	64938ae6f2	infra: unit testing `check_package_version` (#16825 ) Wrote a unit test for `check_package_version` in the core package. Note that this is a revival of https://github.com/langchain-ai/langchain/pull/16387 after GitHub incident (see https://github.com/langchain-ai/langchain/discussions/16796).	8 months ago
Eugene Yurtsev	93472ee9e6	core[patch]: Replace memory stream implementation used by LogStreamCallbackHandler (#17185 ) This PR replaces the memory stream implementation used by the LogStreamCallbackHandler. This implementation resolves an issue in which streamed logs and streamed events originating from sync code would arrive only after the entire sync code would finish execution (rather than arriving in real time as they're generated). One example is if trying to stream tokens from an llm within a tool. If the tool was an async tool, but the llm was invoked via stream (sync variant) rather than astream (async variant), then the tokens would fail to stream in real time and would all arrived bunched up after the tool invocation completed.	8 months ago
William FH	7c03cc5ed4	Support serialization when inputs/outputs contain generators (#17338 ) Pydantic's `dict()` function raises an error here if you pass in a generator. We have a more robust serialization function in lagnsmith that we will use instead.	8 months ago
Leonid Ganeline	ae66bcbc10	core[patch]: docstring update (#16813 ) - added missed docstrings - formated docstrings to consistent form	8 months ago
Eugene Yurtsev	e10030e241	core[patch]: Add unit test to cover different streaming format for json parsing (#17063 ) Add unit test to cover this issue: https://github.com/langchain-ai/langchain/issues/16423 which was resolved by this PR: https://github.com/langchain-ai/langchain/pull/16670/files --------- Co-authored-by: Bagatur <baskaryan@gmail.com>	8 months ago
Bagatur	852973d616	langchain[minor], core[minor]: update json, pydantic parser. add openai-json structured output runnable (#16914 )	8 months ago
Eugene Yurtsev	fbab8baac5	core[patch]: Add astream events config test (#17055 ) Verify that astream events propagates config correctly --------- Co-authored-by: Bagatur <baskaryan@gmail.com>	8 months ago
William FH	3d5e988c55	Add prompt metadata + tags (#17054 )	8 months ago
Christophe Bornet	2ef69fe11b	Add async methods to BaseChatMessageHistory and BaseMemory (#16728 ) Adds: * async methods to BaseChatMessageHistory * async methods to ChatMessageHistory * async methods to BaseMemory * async methods to BaseChatMemory * async methods to ConversationBufferMemory * tests of ConversationBufferMemory's async methods Twitter handle: cbornet_	8 months ago
Erick Friis	06660bc78c	core[patch]: handle some optional cases in tools (#16954 ) primary problem in pydantic still exists, where `Optional[str]` gets turned to `string` in the jsonschema `.schema()` Also fixes the `SchemaSchema` naming issue --------- Co-authored-by: William Fu-Hinthorn <13333726+hinthornw@users.noreply.github.com>	8 months ago

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