LangChain Local Dev Loop

Overview

Configure a rapid local development workflow for LangChain applications with testing, debugging, and hot reload capabilities.

Prerequisites

• Completed langchain-install-auth setup
• Python 3.9+ with virtual environment
• pytest and related testing tools
• IDE with Python support (VS Code recommended)

Instructions

Step 1: Set Up Project Structure

my-langchain-app/
├── src/
│   ├── __init__.py
│   ├── chains/
│   │   └── __init__.py