mirror of
https://github.com/hwchase17/langchain
synced 2024-10-29 17:07:25 +00:00
e46cd3b7db
Adds Google Search integration with [Serper](https://serper.dev) a low-cost alternative to SerpAPI (10x cheaper + generous free tier). Includes documentation, tests and examples. Hopefully I am not missing anything. Developers can sign up for a free account at [serper.dev](https://serper.dev) and obtain an api key. ## Usage ```python from langchain.utilities import GoogleSerperAPIWrapper from langchain.llms.openai import OpenAI from langchain.agents import initialize_agent, Tool import os os.environ["SERPER_API_KEY"] = "" os.environ['OPENAI_API_KEY'] = "" llm = OpenAI(temperature=0) search = GoogleSerperAPIWrapper() tools = [ Tool( name="Intermediate Answer", func=search.run ) ] self_ask_with_search = initialize_agent(tools, llm, agent="self-ask-with-search", verbose=True) self_ask_with_search.run("What is the hometown of the reigning men's U.S. Open champion?") ``` ### Output ``` Entering new AgentExecutor chain... Yes. Follow up: Who is the reigning men's U.S. Open champion? Intermediate answer: Current champions Carlos Alcaraz, 2022 men's singles champion. Follow up: Where is Carlos Alcaraz from? Intermediate answer: El Palmar, Spain So the final answer is: El Palmar, Spain > Finished chain. 'El Palmar, Spain' ```
19 lines
694 B
Python
19 lines
694 B
Python
"""Integration test for self ask with search."""
|
|
from langchain.agents.self_ask_with_search.base import SelfAskWithSearchChain
|
|
from langchain.llms.openai import OpenAI
|
|
from langchain.utilities.google_serper import GoogleSerperAPIWrapper
|
|
|
|
|
|
def test_self_ask_with_search() -> None:
|
|
"""Test functionality on a prompt."""
|
|
question = "What is the hometown of the reigning men's U.S. Open champion?"
|
|
chain = SelfAskWithSearchChain(
|
|
llm=OpenAI(temperature=0),
|
|
search_chain=GoogleSerperAPIWrapper(),
|
|
input_key="q",
|
|
output_key="a",
|
|
)
|
|
answer = chain.run(question)
|
|
final_answer = answer.split("\n")[-1]
|
|
assert final_answer == "El Palmar, Spain"
|