Source code for langchain_community.tools.wikipedia.tool

"""Tool for the Wikipedia API."""

from typing import Optional, Type

from langchain_core.callbacks import CallbackManagerForToolRun
from langchain_core.pydantic_v1 import BaseModel, Field
from langchain_core.tools import BaseTool

from langchain_community.utilities.wikipedia import WikipediaAPIWrapper


[docs]class WikipediaQueryInput(BaseModel): """Input for the WikipediaQuery tool.""" query: str = Field(description="query to look up on wikipedia")
[docs]class WikipediaQueryRun(BaseTool): """Tool that searches the Wikipedia API.""" name: str = "wikipedia" description: str = ( "A wrapper around Wikipedia. " "Useful for when you need to answer general questions about " "people, places, companies, facts, historical events, or other subjects. " "Input should be a search query." ) api_wrapper: WikipediaAPIWrapper args_schema: Type[BaseModel] = WikipediaQueryInput def _run( self, query: str, run_manager: Optional[CallbackManagerForToolRun] = None, ) -> str: """Use the Wikipedia tool.""" return self.api_wrapper.run(query)