原视频地址:https://www.youtube.com/watch?v=jGg_1h0qzaM
源代码地址:https://github.com/iamvaibhavmehra/LangGraph-Course-freeCodeCamp
依赖包
pip install langchain langchain-community langchain-chroma pypdf - PyPDFLoader 阅读PDF
- RecursiveCharacterTextSplitter 设置chunk切分数据
- Chroma 向量数据库
tavily - Agent 联网搜索工具
依赖包
pip install tavily-python langchain-tavilyfrom langchain_tavily import TavilySearch
search_tool = TavilySearch(
max_results=3,
api_key=os.getenv("TAVILY_API_KEY"),
)
tools = [search_tool]