谷歌财经

这个笔记本介绍了如何使用Google财经工具从Google财经页面获取信息。

要获取SerpApi密钥，请在以下链接处注册： https://serpapi.com/users/sign_up。

要使用该工具与Langchain配合，请安装以下包

%pip install --upgrade --quiet  google-search-results langchain-community

然后设置环境变量SERPAPI_API_KEY为您的SerpApi密钥，或者在调用包装器时将密钥作为参数传递serp_api_key="您的秘密密钥"。

import os

from langchain_community.tools.google_finance import GoogleFinanceQueryRun
from langchain_community.utilities.google_finance import GoogleFinanceAPIWrapper

os.environ["SERPAPI_API_KEY"] = "[your serpapi key]"
tool = GoogleFinanceQueryRun(api_wrapper=GoogleFinanceAPIWrapper())

API 参考:Google 财经查询运行 |GoogleFinanceAPI 封装器

tool.run("Google")

'\nQuery: Google\nstock: GOOGL:NASDAQ\nprice: $161.96\npercentage: 1.68\nmovement: Up\n'

要在创建使用Google财经工具的代理程序之前，请安装Langgraph

%pip install --upgrade --quiet langgraph langchain-openai

并使用create_react_agent功能初始化一个ReAct代理。您还需要设置您的OPEN_API_KEY（访问https://platform.openai.com）以访问OpenAI的聊天模型。

import os

from langchain.agents import load_tools
from langchain.chat_models import init_chat_model
from langgraph.prebuilt import create_react_agent

os.environ["OPENAI_API_KEY"] = "[your openai key]"
os.environ["SERP_API_KEY"] = "[your serpapi key]"

llm = init_chat_model("gpt-4o-mini", model_provider="openai")
tools = load_tools(["google-scholar", "google-finance"], llm=llm)
agent = create_react_agent(llm, tools)

events = agent.stream(
    {"messages": [("user", "What is Google's stock?")]},
    stream_mode="values",
)
for event in events:
    event["messages"][-1].pretty_print()

API 参考:加载工具 |初始化聊天模型 |create_react_agent

================================[1m Human Message [0m=================================

What is Google's stock?
==================================[1m Ai Message [0m==================================
Tool Calls:
  google_finance (call_u676mJAkdojgkW806ZGSE8mF)
 Call ID: call_u676mJAkdojgkW806ZGSE8mF
  Args:
    query: Google
=================================[1m Tool Message [0m=================================
Name: google_finance


Query: Google
stock: GOOGL:NASDAQ
price: $161.96
percentage: 1.68
movement: Up

==================================[1m Ai Message [0m==================================

Google's stock (Ticker: GOOGL) is currently priced at $161.96, showing an increase of 1.68%.

工具概念指南概念引导
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