Commit Graph

286 Commits (9ac302cb97cbf9392ab8c37309873b069e277176)

Author SHA1 Message Date
Brace Sproul abe7566d7d
core[minor]: BaseChatModel with_structured_output implementation (#22859) 3 months ago
Raviraj 858ce264ef
SemanticChunker : Feature Addition ("Semantic Splitting with gradient") (#22895)
```SemanticChunker``` currently provide three methods to split the texts semantically:
- percentile
- standard_deviation
- interquartile

I propose new method ```gradient```. In this method, the gradient of distance is used to split chunks along with the percentile method (technically) . This method is useful when chunks are highly correlated with each other or specific to a domain e.g. legal or medical. The idea is to apply anomaly detection on gradient array so that the distribution become wider and easy to identify boundaries in highly semantic data.
I have tested this merge on a set of 10 domain specific documents (mostly legal).

Details : 
    - **Issue:** Improvement
    - **Dependencies:** NA
    - **Twitter handle:** [x.com/prajapat_ravi](https://x.com/prajapat_ravi)


@hwchase17

---------

Co-authored-by: Raviraj Prajapat <raviraj.prajapat@sirionlabs.com>
Co-authored-by: isaac hershenson <ihershenson@hmc.edu>
3 months ago
Tomaz Bratanic 1c661fd849
Improve llm graph transformer docstring (#22939) 3 months ago
Erick Friis c374c98389
experimental: release 0.0.61 (#22924) 3 months ago
Istvan/Nebulinq 513e491ce9
experimental: LLMGraphTransformer - added relationship properties. (#21856)
- **Description:** 
The generated relationships in the graph had no properties, but the
Relationship class was properly defined with properties. This made it
very difficult to transform conditional sentences into a graph. Adding
properties to relationships can solve this issue elegantly.
The changes expand on the existing LLMGraphTransformer implementation
but add the possibility to define allowed relationship properties like
this: LLMGraphTransformer(llm=llm, relationship_properties=["Condition",
"Time"],)
- **Issue:** 
    no issue found
 - **Dependencies:**
    n/a
- **Twitter handle:** 
    @IstvanSpace


-Quick Test
=================================================================
from dotenv import load_dotenv
import os
from langchain_community.graphs import Neo4jGraph
from langchain_experimental.graph_transformers import
LLMGraphTransformer
from langchain_openai import ChatOpenAI
from langchain_core.prompts import ChatPromptTemplate
from langchain_core.documents import Document

load_dotenv()
os.environ["NEO4J_URI"] = os.getenv("NEO4J_URI")
os.environ["NEO4J_USERNAME"] = os.getenv("NEO4J_USERNAME")
os.environ["NEO4J_PASSWORD"] = os.getenv("NEO4J_PASSWORD")
graph = Neo4jGraph()
llm = ChatOpenAI(temperature=0, model_name="gpt-4o")
llm_transformer = LLMGraphTransformer(llm=llm)
#text = "Harry potter likes pies, but only if it rains outside"
text = "Jack has a dog named Max. Jack only walks Max if it is sunny
outside."
documents = [Document(page_content=text)]
llm_transformer_props = LLMGraphTransformer(
    llm=llm,
    relationship_properties=["Condition"],
)
graph_documents_props =
llm_transformer_props.convert_to_graph_documents(documents)
print(f"Nodes:{graph_documents_props[0].nodes}")
print(f"Relationships:{graph_documents_props[0].relationships}")
graph.add_graph_documents(graph_documents_props)

---------

Co-authored-by: Istvan Lorincz <istvan.lorincz@pm.me>
Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>
3 months ago
Eugene Yurtsev c72bcda4f2
community[major], experimental[patch]: Remove Python REPL from community (#22904)
Remove the REPL from community, and suggest an alternative import from
langchain_experimental.

Fix for this issue:
https://github.com/langchain-ai/langchain/issues/14345

This is not a bug in the code or an actual security risk. The python
REPL itself is behaving as expected.

The PR is done to appease blanket security policies that are just
looking for the presence of exec in the code.

---------

Co-authored-by: Erick Friis <erick@langchain.dev>
3 months ago
Kagura Chen 57783c5e55
Fix: lint errors and update Field alias in models.py and AutoSelectionScorer initialization (#22846)
This PR addresses several lint errors in the core package of LangChain.
Specifically, the following issues were fixed:

1.Unexpected keyword argument "required" for "Field"  [call-arg]
2.tests/integration_tests/chains/test_cpal.py:263: error: Unexpected
keyword argument "narrative_input" for "QueryModel" [call-arg]
3 months ago
Eugene Yurtsev a766815a99
experimental[patch]/docs[patch]: Update links to security docs (#22864)
Minor update to newest version of security docs (content should be
identical).
3 months ago
Eugene Yurtsev ce0b0f22a1
experimental[major]: Force users to opt-in into code that relies on the python repl (#22860)
This should make it obvious that a few of the agents in langchain
experimental rely on the python REPL as a tool under the hood, and will
force users to opt-in.
3 months ago
Karim Lalani 276be6cdd4
[experimental][llms][OllamaFunctions] tool calling related fixes (#22339)
Fixes issues with tool calling to handle tool objects correctly. Added
support to handle ToolMessage correctly.
Added additional checks for error conditions.

---------

Co-authored-by: ccurme <chester.curme@gmail.com>
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
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)
3 months ago
Mohammad Mohtashim 7fcef2556c
[Experimental]: Async agenerate method ollama functions (#21682)
- **Description:** :
Added Async method for Generate for OllamaFunctions which was missing
and was raising errors for the users.
   
- **Issue:** 
#21422
3 months ago
Bagatur 48fba40fce
experimental[patch]: Release 0.0.60 (#22497) 3 months ago
liugz18 8fd231086e
experimental[patch]: Fix graph_transformers llms #21482 (#22417)
Fix AttributeError on calling
LLMGraphTransformer.convert_to_graph_documents #21482

 since raw_schema is always a str

@baskaryan
3 months ago
Karim Lalani a1899439fc
[experimental][llms][ollama_functions] Update OllamaFunctions to send `tool_calls` attribute (#21625)
Update OllamaFunctions to return `tool_calls` for AIMessages when used
for tool calling.
4 months ago
Bagatur 50186da0a1
infra: rm unused # noqa violations (#22049)
Updating #21137
4 months ago
mochi 63284ffebf
experimental[patch], docs: refine notebook for MyScale `SelfQueryRetriever` (#22016)
- **Description:** upgrade model to `gpt-4o`
4 months ago
Tomaz Bratanic a43515ca65
experimental[patch]: Pass enum only to openai in llm graph transformer (#21860)
Some models like Groq return bad request if you pass in `enum` parameter
in tool definition
4 months ago
Erick Friis 2d3f4e1a16
experimental: release 0.0.59 (#21835) 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
Tomaz Bratanic 89ff6a3d3b
Add sentiment and confidence levels to diffbotgraphtransformer (#21590)
Co-authored-by: Erick Friis <erickfriis@gmail.com>
Co-authored-by: Erick Friis <erick@langchain.dev>
4 months ago
Erick Friis 83eecd54fe
experimental: 0.2 relax (#21468) 4 months ago
Eugene Yurtsev f92006de3c
multiple: langchain 0.2 in master (#21191)
0.2rc 

migrations

- [x] Move memory
- [x] Move remaining retrievers
- [x] graph_qa chains
- [x] some dependency from evaluation code potentially on math utils
- [x] Move openapi chain from `langchain.chains.api.openapi` to
`langchain_community.chains.openapi`
- [x] Migrate `langchain.chains.ernie_functions` to
`langchain_community.chains.ernie_functions`
- [x] migrate `langchain/chains/llm_requests.py` to
`langchain_community.chains.llm_requests`
- [x] Moving `langchain_community.cross_enoders.base:BaseCrossEncoder`
->
`langchain_community.retrievers.document_compressors.cross_encoder:BaseCrossEncoder`
(namespace not ideal, but it needs to be moved to `langchain` to avoid
circular deps)
- [x] unit tests langchain -- add pytest.mark.community to some unit
tests that will stay in langchain
- [x] unit tests community -- move unit tests that depend on community
to community
- [x] mv integration tests that depend on community to community
- [x] mypy checks

Other todo

- [x] Make deprecation warnings not noisy (need to use warn deprecated
and check that things are implemented properly)
- [x] Update deprecation messages with timeline for code removal (likely
we actually won't be removing things until 0.4 release) -- will give
people more time to transition their code.
- [ ] Add information to deprecation warning to show users how to
migrate their code base using langchain-cli
- [ ] Remove any unnecessary requirements in langchain (e.g., is
SQLALchemy required?)

---------

Co-authored-by: Erick Friis <erick@langchain.dev>
4 months ago
Erick Friis bbdf0f8801
experimental[patch]: core and langchain dep (#21402) 4 months ago
Erick Friis e4aca0d052
experimental[patch]: release 0.0.58 (#21397) 4 months ago
Tomaz Bratanic 0bf7596839
Add simple node properties to llm graph transformer (#21369)
Add support for simple node properties in llm graph transformer.

Linter and dynamic pydantic classes aren't friends, hence I added two
ignores
4 months ago
Tomaz Bratanic ad3fd44a7f
experimental: Fix llm graph transformer bug (#21362) 4 months ago
Tomaz Bratanic 5b6d1a907d
Add the extract types to diffbot graph transformer (#21315)
Before you could only extract triples (diffbot calls it facts) from
diffbot to avoid isolated nodes. However, sometimes isolated nodes can
still be useful like for prefiltering, so we want to allow users to
extract them if they want. Default behaviour is unchanged.
4 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' {} +`
4 months ago
Liu Xiaodong 3b473d10f2
experimental: clean python repl input(experimental:Added code for PythonREPL) (#20930)
Update python.py(experimental:Added code for PythonREPL)

Added code for PythonREPL, defining a static method 'sanitize_input'
that takes the string 'query' as input and returns a sanitizing string.
The purpose of this method is to remove unwanted characters from the
input string, Specifically:

1. Delete the whitespace at the beginning and end of the string (' \s').
2. Remove the quotation marks (`` ` ``) at the beginning and end of the
string.
3. Remove the keyword "python" at the beginning of the string (case
insensitive) because the user may have typed it.

This method uses regular expressions (regex) to implement sanitizing.

It all started with this code:
from langchain.agents import Tool
from langchain_experimental.utilities import PythonREPL

python_repl = PythonREPL()
repl_tool = Tool(
    name="python_repl",
description="Remove redundant formatting marks at the beginning and end
of source code from input.Use a Python shell to execute python commands.
If you want to see the output of a value, you should print it out with
`print(...)`.",
    func=python_repl.run,
)

When I call the agent to write a piece of code for me and execute it
with the defined code, I must get an error: SyntaxError('invalid
syntax', ('<string>', 1, 1,'In', 1, 2))

After checking, I found that pythonREPL has less formatting of input
code than the soon-to-be deprecated pythonREPL tool, so I added this
step to it, so that no matter what code I ask the agent to write for me,
it can be executed smoothly and get the output result.
I have tried modifying the prompt words to solve this problem before,
but it did not work, and by adding a simple format check, the problem is
well resolved.
<img width="1271" alt="image"
src="https://github.com/langchain-ai/langchain/assets/164149097/c49a685f-d246-4b11-b655-fd952fc2f04c">

---------

Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>
Co-authored-by: Bagatur <baskaryan@gmail.com>
5 months ago
Tomaz Bratanic 7860e4c649
experimental[patch]: Add support for non-function calling LLMs in llm graph transformers (#21014) 5 months ago
Karim Lalani 2ddac9a7c3
experimental[minor]: Add bind_tools and with_structured_output functions to OllamaFunctions (#20881)
Implemented bind_tools for OllamaFunctions.
Made OllamaFunctions sub class of ChatOllama.
Implemented with_structured_output for OllamaFunctions.

integration unit test has been updated.
notebook has been updated.

---------

Co-authored-by: Bagatur <baskaryan@gmail.com>
5 months ago
Michael Schock 5e60d65917
experimental[patch]: return from HuggingGPT task executor task.run() exception (#20219)
**Description:** Fixes a bug in the HuggingGPT task execution logic
here:

      except Exception as e:
          self.status = "failed"
          self.message = str(e)
      self.status = "completed"
      self.save_product()

where a caught exception effectively just sets `self.message` and can
then throw an exception if, e.g., `self.product` is not defined.

**Issue:** None that I'm aware of.
**Dependencies:** None
**Twitter handle:** https://twitter.com/michaeljschock

Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>
5 months ago
Michael Schock 63a07f52df
experimental[patch]: remove \n from AutoGPT feedback_tool exit check (#20132) 5 months ago
GustavoSept c2d09a5186
experimental[patch]: Makes regex customizable in text_splitter.py (SemanticChunker class) (#20485)
- **Description:** Currently, the regex is static (`r"(?<=[.?!])\s+"`),
which is only useful for certain use cases. The current change only
moves this to be a parameter of split_text(). Which adds flexibility
without making it more complex (as the default regex is still the same).
- **Issue:** Not applicable (I searched, no one seems to have created
this issue yet).
  - **Dependencies:** None.


_If no one reviews your PR within a few days, please @-mention one of
baskaryan, efriis, eyurtsev, hwchase17._

---------

Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>
Co-authored-by: Bagatur <baskaryan@gmail.com>
5 months ago
Oleksandr Yaremchuk 9428923bab
experimental[minor]: upgrade the prompt injection model (#20783)
- **Description:** In January, Laiyer.ai became part of ProtectAI, which
means the model became owned by ProtectAI. In addition to that,
yesterday, we released a new version of the model addressing issues the
Langchain's community and others mentioned to us about false-positives.
The new model has a better accuracy compared to the previous version,
and we thought the Langchain community would benefit from using the
[latest version of the
model](https://huggingface.co/protectai/deberta-v3-base-prompt-injection-v2).
- **Issue:** N/A
- **Dependencies:** N/A
- **Twitter handle:** @alex_yaremchuk
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
Bagatur 1c7b3c75a7
community[patch], experimental[patch]: support tool-calling sql and p… (#20639)
d agents
5 months ago
Leonid Ganeline 95dc90609e
experimental[patch]: `prompts` import fix (#20534)
Replaced `from langchain.prompts` with `from langchain_core.prompts`
where it is appropriate.
Most of the changes go to `langchain_experimental`
Similar to #20348
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
Leonid Ganeline e512d3c6a6
langchain: `callbacks` imports fix (#20348)
Replaced all `from langchain.callbacks` into `from
langchain_core.callbacks` .
Changes in the `langchain` and `langchain_experimental`

---------

Co-authored-by: Erick Friis <erick@langchain.dev>
5 months ago
Tomaz Bratanic a1b105ac00
experimental[patch]: Skip pydantic validation for llm graph transformer and fix JSON response where possible (#19915)
LLMs might sometimes return invalid response for LLM graph transformer.
Instead of failing due to pydantic validation, we skip it and manually
check and optionally fix error where we can, so that more information
gets extracted
5 months ago
Bagatur 2d83505be9
experimental[patch]: Release 0.0.57 (#20243) 5 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`.
5 months ago
Bagatur 003c98e5b4
experimental[patch]: Release 0.0.56 (#19840) 6 months ago
LunarECL b7d180a70d
experimental[minor]: Create Closed Captioning Chain for .mp4 videos (#14059)
Description: Video imagery to text (Closed Captioning)
This pull request introduces the VideoCaptioningChain, a tool for
automated video captioning. It processes audio and video to generate
subtitles and closed captions, merging them into a single SRT output.

Issue: https://github.com/langchain-ai/langchain/issues/11770
Dependencies: opencv-python, ffmpeg-python, assemblyai, transformers,
pillow, torch, openai
Tag maintainer:
@baskaryan
@hwchase17


Hello!

We are a group of students from the University of Toronto
(@LunarECL, @TomSadan, @nicoledroi1, @A2113S) that want to make a
contribution to the LangChain community! We have ran make format, make
lint and make test locally before submitting the PR. To our knowledge,
our changes do not introduce any new errors.

Thank you for taking the time to review our PR!

---------

Co-authored-by: Bagatur <baskaryan@gmail.com>
6 months ago
Kirushikesh DB 12861273e1
experimental[patch]: Removed 'SQLResults:' from the LLMResponse in SQLDatabaseChain (#17104)
**Description:** 
When using the SQLDatabaseChain with Llama2-70b LLM and, SQLite
database. I was getting `Warning: You can only execute one statement at
a time.`.

```
from langchain.sql_database import SQLDatabase
from langchain_experimental.sql import SQLDatabaseChain

sql_database_path = '/dccstor/mmdataretrieval/mm_dataset/swimming_record/rag_data/swimmingdataset.db'
sql_db = get_database(sql_database_path)
db_chain = SQLDatabaseChain.from_llm(mistral, sql_db, verbose=True, callbacks = [callback_obj])
db_chain.invoke({
    "query": "What is the best time of Lance Larson in men's 100 meter butterfly competition?"
})
```
Error:
```
Warning                                   Traceback (most recent call last)
Cell In[31], line 3
      1 import langchain
      2 langchain.debug=False
----> 3 db_chain.invoke({
      4     "query": "What is the best time of Lance Larson in men's 100 meter butterfly competition?"
      5 })

File ~/.conda/envs/guardrails1/lib/python3.9/site-packages/langchain/chains/base.py:162, in Chain.invoke(self, input, config, **kwargs)
    160 except BaseException as e:
    161     run_manager.on_chain_error(e)
--> 162     raise e
    163 run_manager.on_chain_end(outputs)
    164 final_outputs: Dict[str, Any] = self.prep_outputs(
    165     inputs, outputs, return_only_outputs
    166 )

File ~/.conda/envs/guardrails1/lib/python3.9/site-packages/langchain/chains/base.py:156, in Chain.invoke(self, input, config, **kwargs)
    149 run_manager = callback_manager.on_chain_start(
    150     dumpd(self),
    151     inputs,
    152     name=run_name,
    153 )
    154 try:
    155     outputs = (
--> 156         self._call(inputs, run_manager=run_manager)
    157         if new_arg_supported
    158         else self._call(inputs)
    159     )
    160 except BaseException as e:
    161     run_manager.on_chain_error(e)

File ~/.conda/envs/guardrails1/lib/python3.9/site-packages/langchain_experimental/sql/base.py:198, in SQLDatabaseChain._call(self, inputs, run_manager)
    194 except Exception as exc:
    195     # Append intermediate steps to exception, to aid in logging and later
    196     # improvement of few shot prompt seeds
    197     exc.intermediate_steps = intermediate_steps  # type: ignore
--> 198     raise exc

File ~/.conda/envs/guardrails1/lib/python3.9/site-packages/langchain_experimental/sql/base.py:143, in SQLDatabaseChain._call(self, inputs, run_manager)
    139     intermediate_steps.append(
    140         sql_cmd
    141     )  # output: sql generation (no checker)
    142     intermediate_steps.append({"sql_cmd": sql_cmd})  # input: sql exec
--> 143     result = self.database.run(sql_cmd)
    144     intermediate_steps.append(str(result))  # output: sql exec
    145 else:

File ~/.conda/envs/guardrails1/lib/python3.9/site-packages/langchain_community/utilities/sql_database.py:436, in SQLDatabase.run(self, command, fetch, include_columns)
    425 def run(
    426     self,
    427     command: str,
    428     fetch: Literal["all", "one"] = "all",
    429     include_columns: bool = False,
    430 ) -> str:
    431     """Execute a SQL command and return a string representing the results.
    432 
    433     If the statement returns rows, a string of the results is returned.
    434     If the statement returns no rows, an empty string is returned.
    435     """
--> 436     result = self._execute(command, fetch)
    438     res = [
    439         {
    440             column: truncate_word(value, length=self._max_string_length)
   (...)
    443         for r in result
    444     ]
    446     if not include_columns:

File ~/.conda/envs/guardrails1/lib/python3.9/site-packages/langchain_community/utilities/sql_database.py:413, in SQLDatabase._execute(self, command, fetch)
    410     elif self.dialect == "postgresql":  # postgresql
    411         connection.exec_driver_sql("SET search_path TO %s", (self._schema,))
--> 413 cursor = connection.execute(text(command))
    414 if cursor.returns_rows:
    415     if fetch == "all":

File ~/.conda/envs/guardrails1/lib/python3.9/site-packages/sqlalchemy/engine/base.py:1416, in Connection.execute(self, statement, parameters, execution_options)
   1414     raise exc.ObjectNotExecutableError(statement) from err
   1415 else:
-> 1416     return meth(
   1417         self,
   1418         distilled_parameters,
   1419         execution_options or NO_OPTIONS,
   1420     )

File ~/.conda/envs/guardrails1/lib/python3.9/site-packages/sqlalchemy/sql/elements.py:516, in ClauseElement._execute_on_connection(self, connection, distilled_params, execution_options)
    514     if TYPE_CHECKING:
    515         assert isinstance(self, Executable)
--> 516     return connection._execute_clauseelement(
    517         self, distilled_params, execution_options
    518     )
    519 else:
    520     raise exc.ObjectNotExecutableError(self)

File ~/.conda/envs/guardrails1/lib/python3.9/site-packages/sqlalchemy/engine/base.py:1639, in Connection._execute_clauseelement(self, elem, distilled_parameters, execution_options)
   1627 compiled_cache: Optional[CompiledCacheType] = execution_options.get(
   1628     "compiled_cache", self.engine._compiled_cache
   1629 )
   1631 compiled_sql, extracted_params, cache_hit = elem._compile_w_cache(
   1632     dialect=dialect,
   1633     compiled_cache=compiled_cache,
   (...)
   1637     linting=self.dialect.compiler_linting | compiler.WARN_LINTING,
   1638 )
-> 1639 ret = self._execute_context(
   1640     dialect,
   1641     dialect.execution_ctx_cls._init_compiled,
   1642     compiled_sql,
   1643     distilled_parameters,
   1644     execution_options,
   1645     compiled_sql,
   1646     distilled_parameters,
   1647     elem,
   1648     extracted_params,
   1649     cache_hit=cache_hit,
   1650 )
   1651 if has_events:
   1652     self.dispatch.after_execute(
   1653         self,
   1654         elem,
   (...)
   1658         ret,
   1659     )

File ~/.conda/envs/guardrails1/lib/python3.9/site-packages/sqlalchemy/engine/base.py:1848, in Connection._execute_context(self, dialect, constructor, statement, parameters, execution_options, *args, **kw)
   1843     return self._exec_insertmany_context(
   1844         dialect,
   1845         context,
   1846     )
   1847 else:
-> 1848     return self._exec_single_context(
   1849         dialect, context, statement, parameters
   1850     )

File ~/.conda/envs/guardrails1/lib/python3.9/site-packages/sqlalchemy/engine/base.py:1988, in Connection._exec_single_context(self, dialect, context, statement, parameters)
   1985     result = context._setup_result_proxy()
   1987 except BaseException as e:
-> 1988     self._handle_dbapi_exception(
   1989         e, str_statement, effective_parameters, cursor, context
   1990     )
   1992 return result

File ~/.conda/envs/guardrails1/lib/python3.9/site-packages/sqlalchemy/engine/base.py:2346, in Connection._handle_dbapi_exception(self, e, statement, parameters, cursor, context, is_sub_exec)
   2344     else:
   2345         assert exc_info[1] is not None
-> 2346         raise exc_info[1].with_traceback(exc_info[2])
   2347 finally:
   2348     del self._reentrant_error

File ~/.conda/envs/guardrails1/lib/python3.9/site-packages/sqlalchemy/engine/base.py:1969, in Connection._exec_single_context(self, dialect, context, statement, parameters)
   1967                 break
   1968     if not evt_handled:
-> 1969         self.dialect.do_execute(
   1970             cursor, str_statement, effective_parameters, context
   1971         )
   1973 if self._has_events or self.engine._has_events:
   1974     self.dispatch.after_cursor_execute(
   1975         self,
   1976         cursor,
   (...)
   1980         context.executemany,
   1981     )

File ~/.conda/envs/guardrails1/lib/python3.9/site-packages/sqlalchemy/engine/default.py:922, in DefaultDialect.do_execute(self, cursor, statement, parameters, context)
    921 def do_execute(self, cursor, statement, parameters, context=None):
--> 922     cursor.execute(statement, parameters)

Warning: You can only execute one statement at a time.
```
**Issue:** 
The Error occurs because when generating the SQLQuery, the llm_input
includes the stop character of "\nSQLResult:", so for this user query
the LLM generated response is **SELECT Time FROM men_butterfly_100m
WHERE Swimmer = 'Lance Larson';\nSQLResult:** it is required to remove
the SQLResult suffix on the llm response before executing it on the
database.

```
llm_inputs = {
            "input": input_text,
            "top_k": str(self.top_k),
            "dialect": self.database.dialect,
            "table_info": table_info,
            "stop": ["\nSQLResult:"],
        }

sql_cmd = self.llm_chain.predict(
                callbacks=_run_manager.get_child(),
                **llm_inputs,
            ).strip()

if SQL_RESULT in sql_cmd:
    sql_cmd = sql_cmd.split(SQL_RESULT)[0].strip()
result = self.database.run(sql_cmd)
```


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---------

Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.com>
6 months ago
T Cramer 540ebf35a9
community[patch]: Add explicit error message to Bedrock error output. (#17328)
- **Description:** Propagate Bedrock errors into Langchain explicitly.
Use-case: unset region error is hidden behind 'Could not load
credentials...' message
- **Issue:**
[17654](https://github.com/langchain-ai/langchain/issues/17654)
  - **Dependencies:** None

---------

Co-authored-by: Bagatur <22008038+baskaryan@users.noreply.github.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