mirror of
https://github.com/hwchase17/langchain
synced 2024-11-18 09:25:54 +00:00
0600998f38
- **Description:** Adds Wikidata support to langchain. Can read out documents from Wikidata. - **Issue:** N/A - **Dependencies:** Adds implicit dependencies for `wikibase-rest-api-client` (for turning items into docs) and `mediawikiapi` (for hitting the search endpoint) - **Twitter handle:** @derenrich You can see an example of this tool used in a chain [here](https://nbviewer.org/urls/d.erenrich.net/upload/Wikidata_Langchain.ipynb) or [here](https://nbviewer.org/urls/d.erenrich.net/upload/Wikidata_Lars_Kai_Hansen.ipynb) <!-- Thank you for contributing to LangChain! 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. -->
31 lines
926 B
Python
31 lines
926 B
Python
"""Tool for the Wikidata API."""
|
|
|
|
from typing import Optional
|
|
|
|
from langchain_core.callbacks import CallbackManagerForToolRun
|
|
from langchain_core.tools import BaseTool
|
|
|
|
from langchain_community.utilities.wikidata import WikidataAPIWrapper
|
|
|
|
|
|
class WikidataQueryRun(BaseTool):
|
|
"""Tool that searches the Wikidata API."""
|
|
|
|
name: str = "Wikidata"
|
|
description: str = (
|
|
"A wrapper around Wikidata. "
|
|
"Useful for when you need to answer general questions about "
|
|
"people, places, companies, facts, historical events, or other subjects. "
|
|
"Input should be the exact name of the item you want information about "
|
|
"or a Wikidata QID."
|
|
)
|
|
api_wrapper: WikidataAPIWrapper
|
|
|
|
def _run(
|
|
self,
|
|
query: str,
|
|
run_manager: Optional[CallbackManagerForToolRun] = None,
|
|
) -> str:
|
|
"""Use the Wikidata tool."""
|
|
return self.api_wrapper.run(query)
|