langchain

Commit Graph

Author	SHA1	Message	Date
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
Nuno Campos	f01f12ce1e	Include "no escape" and "inverted section" mustache vars in Prompt.input_variables and Prompt.input_schema (#22981 )	3 months ago
Erick Friis	2aaf86ddae	core: fix mustache falsy cases (#22747 )	3 months ago
Guangdong Liu	bc7e32f315	core(patch):fix partial_variables not working with SystemMessagePromptTemplate (#20711 ) - Issue: close #17560 - @baskaryan, @eyurtsev	4 months ago
Nuno Campos	15271ac832	core: mustache prompt templates (#19980 ) Co-authored-by: Erick Friis <erick@langchain.dev>	5 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
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	f97de4e275	core[minor]: Add aformat to FewShotPromptTemplate (#19652 )	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
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
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	6 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"	6 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.	6 months ago
Eugene Yurtsev	8c71f92cb2	core: upgrade mypy to recent mypy (#18753 ) Testing this works per package on CI	7 months ago
William FH	3d5e988c55	Add prompt metadata + tags (#17054 )	8 months ago
Bagatur	c29e9b6412	core[patch]: fix chat prompt partial messages placeholder var (#16918 )	8 months ago
William FH	131c043864	Fix loading of ImagePromptTemplate (#16868 ) We didn't override the namespace of the ImagePromptTemplate, so it is listed as being in langchain.schema This updates the mapping to let the loader deserialize. Alternatively, we could make a slight breaking change and update the namespace of the ImagePromptTemplate since we haven't broadly publicized/documented it yet..	8 months ago
William FH	38425c99d2	core[minor]: Image prompt template (#14263 ) Builds on Bagatur's (#13227). See unit test for example usage (below) ```python def test_chat_tmpl_from_messages_multipart_image() -> None: base64_image = "abcd123" other_base64_image = "abcd123" template = ChatPromptTemplate.from_messages( [ ("system", "You are an AI assistant named {name}."), ( "human", [ {"type": "text", "text": "What's in this image?"}, # OAI supports all these structures today { "type": "image_url", "image_url": "data:image/jpeg;base64,{my_image}", }, { "type": "image_url", "image_url": {"url": "data:image/jpeg;base64,{my_image}"}, }, {"type": "image_url", "image_url": "{my_other_image}"}, { "type": "image_url", "image_url": {"url": "{my_other_image}", "detail": "medium"}, }, { "type": "image_url", "image_url": {"url": "https://www.langchain.com/image.png"}, }, { "type": "image_url", "image_url": {"url": "data:image/jpeg;base64,foobar"}, }, ], ), ] ) messages = template.format_messages( name="R2D2", my_image=base64_image, my_other_image=other_base64_image ) expected = [ SystemMessage(content="You are an AI assistant named R2D2."), HumanMessage( content=[ {"type": "text", "text": "What's in this image?"}, { "type": "image_url", "image_url": {"url": f"data:image/jpeg;base64,{base64_image}"}, }, { "type": "image_url", "image_url": { "url": f"data:image/jpeg;base64,{other_base64_image}" }, }, { "type": "image_url", "image_url": {"url": f"{other_base64_image}"}, }, { "type": "image_url", "image_url": { "url": f"{other_base64_image}", "detail": "medium", }, }, { "type": "image_url", "image_url": {"url": "https://www.langchain.com/image.png"}, }, { "type": "image_url", "image_url": {"url": "data:image/jpeg;base64,foobar"}, }, ] ), ] assert messages == expected ``` --------- Co-authored-by: Bagatur <baskaryan@gmail.com> Co-authored-by: Brace Sproul <braceasproul@gmail.com>	8 months ago
Nuno Campos	52ccae3fb1	Accept message-like things in Chat models, LLMs and MessagesPlaceholder (#16418 )	8 months ago
James Braza	d511366dd3	infra: absolute `EXAMPLE_DIR` path in core unit tests (#16325 ) If you invoked testing from places besides `core/`, this `EXAMPLE_DIR` path won't work. This PR makes`EXAMPLE_DIR` robust against invocation location	8 months ago
Dariusz Kajtoch	15b6c049d4	core:adds tests for partial_variables (#15427 ) Description: Added small tests to test partial_variables in PromptTemplate. It was missing.	9 months ago
Harrison Chase	4ad77f777e	[core] prompt changes (#15186 ) change it to pass all variables through all the way in invoke	9 months ago
Nuno Campos	d5533b7081	Add option to make messages placeholder optional (#15031 ) <!-- Thank you for contributing to LangChain! Please title your PR "<package>: <description>", where <package> is whichever of langchain, community, core, experimental, etc. is being modified. Replace this entire comment with: - Description: a description of the change, - Issue: the issue # it fixes if applicable, - Dependencies: any dependencies required for this change, - Twitter handle: we announce bigger features on Twitter. If your PR gets announced, and you'd like a mention, we'll gladly shout you out! Please make sure your PR is passing linting and testing before submitting. Run `make format`, `make lint` and `make test` from the root of the package you've modified to check this locally. See contribution guidelines for more information on how to write/run tests, lint, etc: https://python.langchain.com/docs/contributing/ If you're adding a new integration, please include: 1. a test for the integration, preferably unit tests that do not rely on network access, 2. an example notebook showing its use. It lives in `docs/docs/integrations` directory. If no one reviews your PR within a few days, please @-mention one of @baskaryan, @eyurtsev, @hwchase17. -->	9 months ago
Bagatur	b2280fd874	core[patch], langchain[patch]: fix required deps (#14373 )	10 months ago
James Braza	8b0060184d	Fixing empty input variable crashing `PromptTemplate` validations (#14314 ) - Fixes `input_variables=[""]` crashing validations with a template `"{}"` - Uses `__cause__` for proper `Exception` chaining in `check_valid_template`	10 months ago
Bagatur	16af282429	BUGFIX: add prompt imports for backwards compat (#13702 )	10 months ago
Bagatur	c61e30632e	BUG: more core fixes (#13665 ) Fix some circular deps: - move PromptValue into top level module bc both PromptTemplates and OutputParsers import - move tracer context vars to `tracers.context` and import them in functions in `callbacks.manager` - add core import tests	10 months ago
Bagatur	d32e511826	REFACTOR: Refactor langchain_core (#13627 ) Changes: - remove langchain_core/schema since no clear distinction b/n schema and non-schema modules - make every module that doesn't end in -y plural - where easy have 1-2 classes per file - no more than one level of nesting in directories - only import from top level core modules in langchain	10 months ago
Harrison Chase	d82cbf5e76	Separate out langchain_core package (#13577 ) Co-authored-by: Nuno Campos <nuno@boringbits.io> Co-authored-by: Bagatur <baskaryan@gmail.com> Co-authored-by: Erick Friis <erick@langchain.dev>	10 months ago

32 Commits (9b3a025f9c806a6f8a00030c7058c689536ae5a0)