Commit Graph

32 Commits

Author SHA1 Message Date
Nuno Campos
15271ac832
core: mustache prompt templates (#19980)
Co-authored-by: Erick Friis <erick@langchain.dev>
2024-04-10 11:25:32 -07:00
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>
2024-04-09 18:41:42 -05:00
Erick Friis
83f62fdacf
core: fix try_load_from_hub for older langchain versions load_chain (#19964) 2024-04-03 17:00:25 +00:00
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`.
2024-04-02 20:28:10 +00:00
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>
2024-03-28 22:33:43 +00:00
Harrison Chase
b40c80007f
core[minor]: Add utility code to create tool examples (#18602)
Co-authored-by: Chester Curme <chester.curme@gmail.com>
2024-03-22 13:17:40 -04:00
Chris Papademetrious
305d74c67a
core: implement a batch_size parameter for CacheBackedEmbeddings (#18070)
**Description:**

Currently, `CacheBackedEmbeddings` computes vectors for *all* uncached
documents before updating the store. This pull request updates the
embedding computation loop to compute embeddings in batches, updating
the store after each batch.

I noticed this when I tried `CacheBackedEmbeddings` on our 30k document
set and the cache directory hadn't appeared on disk after 30 minutes.

The motivation is to minimize compute/data loss when problems occur:

* If there is a transient embedding failure (e.g. a network outage at
the embedding endpoint triggers an exception), at least the completed
vectors are written to the store instead of being discarded.
* If there is an issue with the store (e.g. no write permissions), the
condition is detected early without computing (and discarding!) all the
vectors.

**Issue:**
Implements enhancement #18026.

**Testing:**
I was unable to run unit tests; details in [this
post](https://github.com/langchain-ai/langchain/discussions/15019#discussioncomment-8576684).

---------

Signed-off-by: chrispy <chrispy@synopsys.com>
Co-authored-by: Eugene Yurtsev <eyurtsev@gmail.com>
2024-03-19 18:55:43 +00:00
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>
2024-03-18 21:25:06 -07:00
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>
2024-03-12 05:42:45 +00:00
Bagatur
e0e688a277
core[minor]: generation info on msg (#18592)
related to #16403 #17188
2024-03-12 04:43:17 +00:00
Bagatur
19721246f5
core[patch]: support labeled json schema as tools (#18935) 2024-03-11 19:51:35 -07:00
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.
2024-03-05 12:49:38 -08:00
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>
2024-02-13 08:48:02 -08:00
Erick Friis
3a2eb6e12b
infra: add print rule to ruff (#16221)
Added noqa for existing prints. Can slowly remove / will prevent more
being intro'd
2024-02-09 16:13:30 -08:00
Leonid Ganeline
ae66bcbc10
core[patch]: docstring update (#16813)
- added missed docstrings
- formated docstrings to consistent form
2024-02-09 12:47:41 -08:00
Bagatur
af74301ab9
core[patch], community[patch]: link extraction continue on failure (#17200) 2024-02-07 14:15:30 -08:00
William FH
881dc28d2c
Fix Dep Recommendation (#16793)
Tools are different than functions
2024-01-30 09:40:28 -08:00
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>
2024-01-27 17:04:29 -08:00
Bagatur
ef42d9d559
core[patch], community[patch], openai[patch]: consolidate openai tool… (#16485)
… converters

One way to convert anything to an OAI function:
convert_to_openai_function
One way to convert anything to an OAI tool: convert_to_openai_tool
Corresponding bind functions on OAI models: bind_functions, bind_tools
2024-01-25 13:18:46 -08:00
Bagatur
84bf5787a7
core[patch], openai[patch]: Chat openai stream logprobs (#16218) 2024-01-19 09:16:09 -08:00
Leonid Kuligin
4df14a61fc
google-vertexai[minor]: add function calling on VertexAI (#15822)
Replace this entire comment with:
  - **Description:** Description: added support for tools on VertexAI
  - **Issue:** #15073 
  - **Twitter handle:**  lkuligin

---------

Co-authored-by: Erick Friis <erick@langchain.dev>
2024-01-16 17:01:26 -08:00
Bagatur
bccb07f93e
core[patch]: simple prompt pretty printing (#15968) 2024-01-12 21:08:51 -05:00
Erick Friis
ebc75c5ca7
openai[minor]: implement langchain-openai package (#15503)
Todo

- [x] copy over integration tests
- [x] update docs with new instructions in #15513 
- [x] add linear ticket to bump core -> community, community->langchain,
and core->openai deps
- [ ] (optional): add `pip install langchain-openai` command to each
notebook using it
- [x] Update docstrings to not need `openai` install
- [x] Add serialization
- [x] deprecate old models

Contributor steps:

- [x] Add secret names to manual integrations workflow in
.github/workflows/_integration_test.yml
- [x] Add secrets to release workflow (for pre-release testing) in
.github/workflows/_release.yml

Maintainer steps (Contributors should not do these):

- [x] set up pypi and test pypi projects
- [x] add credential secrets to Github Actions
- [ ] add package to conda-forge


Functional changes to existing classes:

- now relies on openai client v1 (1.6.1) via concrete dep in
langchain-openai package

Codebase organization

- some function calling stuff moved to
`langchain_core.utils.function_calling` in order to be used in both
community and langchain-openai
2024-01-05 15:03:28 -08:00
Eugene Yurtsev
bf0b3cc0b5
core[patch]: Further restrict recursive URL loader (#15559)
Includes code from this PR:  https://github.com/langchain-ai/langchain/compare/HEAD...m0kr4n3:security/fix_ssrf 
with additional fixes 

Unit tests cover new test cases
2024-01-04 16:33:57 -05:00
Paresh Chiramel
9be08a1956
Update _retrieve_ref inside json_schema.py to include an isdigit() check (#14745)
- **Description:** Update _retrieve_ref inside json_schema.py to include
an isdigit() check
- **Issue:** This library is used inside dereference_refs inside
langchain_community.agent_toolkits.openapi.spec. When I read in a yaml
file which has references for "400", "401" etc; the line "out =
out[component]" causes a KeyError. The isdigit() check ensures that if
it is an integer like "400" or "401"; it converts it into integer before
using it as a key to prevent the error.
  - **Dependencies:** No dependencies
  - **Tag maintainer:** @baskaryan

---------

Co-authored-by: Harrison Chase <hw.chase.17@gmail.com>
2024-01-01 16:25:42 -08:00
Harrison Chase
4ad77f777e
[core] prompt changes (#15186)
change it to pass all variables through all the way in invoke
2023-12-26 15:52:17 -08:00
chyroc
0e149bbb4c
Improve: remove extra spaces in get_from_env error (#15064) 2023-12-22 11:50:03 -08:00
Bagatur
ed58eeb9c5
community[major], core[patch], langchain[patch], experimental[patch]: Create langchain-community (#14463)
Moved the following modules to new package langchain-community in a backwards compatible fashion:

```
mv langchain/langchain/adapters community/langchain_community
mv langchain/langchain/callbacks community/langchain_community/callbacks
mv langchain/langchain/chat_loaders community/langchain_community
mv langchain/langchain/chat_models community/langchain_community
mv langchain/langchain/document_loaders community/langchain_community
mv langchain/langchain/docstore community/langchain_community
mv langchain/langchain/document_transformers community/langchain_community
mv langchain/langchain/embeddings community/langchain_community
mv langchain/langchain/graphs community/langchain_community
mv langchain/langchain/llms community/langchain_community
mv langchain/langchain/memory/chat_message_histories community/langchain_community
mv langchain/langchain/retrievers community/langchain_community
mv langchain/langchain/storage community/langchain_community
mv langchain/langchain/tools community/langchain_community
mv langchain/langchain/utilities community/langchain_community
mv langchain/langchain/vectorstores community/langchain_community
mv langchain/langchain/agents/agent_toolkits community/langchain_community
mv langchain/langchain/cache.py community/langchain_community
mv langchain/langchain/adapters community/langchain_community
mv langchain/langchain/callbacks community/langchain_community/callbacks
mv langchain/langchain/chat_loaders community/langchain_community
mv langchain/langchain/chat_models community/langchain_community
mv langchain/langchain/document_loaders community/langchain_community
mv langchain/langchain/docstore community/langchain_community
mv langchain/langchain/document_transformers community/langchain_community
mv langchain/langchain/embeddings community/langchain_community
mv langchain/langchain/graphs community/langchain_community
mv langchain/langchain/llms community/langchain_community
mv langchain/langchain/memory/chat_message_histories community/langchain_community
mv langchain/langchain/retrievers community/langchain_community
mv langchain/langchain/storage community/langchain_community
mv langchain/langchain/tools community/langchain_community
mv langchain/langchain/utilities community/langchain_community
mv langchain/langchain/vectorstores community/langchain_community
mv langchain/langchain/agents/agent_toolkits community/langchain_community
mv langchain/langchain/cache.py community/langchain_community
```

Moved the following to core
```
mv langchain/langchain/utils/json_schema.py core/langchain_core/utils
mv langchain/langchain/utils/html.py core/langchain_core/utils
mv langchain/langchain/utils/strings.py core/langchain_core/utils
cat langchain/langchain/utils/env.py >> core/langchain_core/utils/env.py
rm langchain/langchain/utils/env.py
```

See .scripts/community_split/script_integrations.sh for all changes
2023-12-11 13:53:30 -08:00
Bagatur
10a6e7cbb6
langchain[patch], core[patch]: Make common utils public (#13932)
- rename `langchain_core.chat_models.base._generate_from_stream` -> `generate_from_stream`
- rename `langchain_core.chat_models.base._agenerate_from_stream` -> `agenerate_from_stream`
- export `langchain_core.utils.utils.build_extra_kwargs` from `langchain_core.utils`
2023-11-27 15:34:46 -08:00
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
2023-11-21 15:15:48 -08:00
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
2023-11-21 08:35:29 -08:00
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>
2023-11-20 13:09:30 -08:00