langgraph本地运行

1、安装（官方文档）：
pip install -U "langgraph-cli[inmem]"

2、创建项目骨架（交互式）:
langgraph new path/to/your/app

3、安装项目依赖：
cd path/to/your/app
pip install -e .

4、配置.env文件:

# To separate your traces from other application
LANGSMITH_PROJECT=new-agent

# Add API keys for connecting to LLM providers, data sources, and other integrations here
# 要去langsmith搞个账号获取api秘钥
LANGSMITH_API_KEY=xxxxx

5、运行:
langgraph dev

注意事项:
windows环境下powershell，运行前设置

$env:PYTHONIOENCODING="utf-8"
$env:PYTHONUTF8="1"