LangChain Tutorial Scripts

This repository contains scripts following tutorials on LangChain. The tutorials can be found on YouTube:

• LangChain Basics Tutorial
• Prompt Engineering with LangChain

Follow these steps to set up the environment:

1. Create the Conda environment:

   conda create -n lang_chain python=3.9

2. Activate the environment:

   conda activate lang_chain

3. Install dependencies:

   pip install -r requirements.txt
   

1. langchain_openai_example1.py Description: Uses LangChain and openai_key to demonstrate a LangChain model on Streamlit.

2. single_prompt_template.py Description: Demonstrates how to use LLMChain with a single prompt template.

3. multiple_prompt_template.py Description: Combines multiple prompts by taking the output of one prompt template as input for a second prompt template, using PromptTemplate and LLMChain.

4. langchain_memory_conversation_openai.py Description: Saves conversation history to memory for continuous conversation

5. prompt_eng_langchain.py Description: Covers prompt engineering techniques using LangChain.