Psychotherapist Chat Bot

This project is a psychotherapist chatbot using the LangChain library with the Llama-2 model. The bot assists users with psychological counselling by engaging in a conversation, recognizing emotions, and managing chat history.

Features

• Emotion recognition in user input.
• Management of chat history.
• Handling of edge cases and invalid input.

Requirements

• Python 3.8+
• Required Python libraries (see requirements.txt)

Installation

1. Create a virtual environment and activate it:

   python -m venv venv
   source venv/bin/activate  # On Windows, use `venv\Scripts\activate`

2. Install the required libraries:

   pip install -r requirements.txt

3. Ensure you have the Llama-2 model files in the correct directory (model/llama-2-7b-chat.Q4_0.gguf). If you don't, create a folder called 'model' and download from here.

Usage

1. Run the chat bot:

   python main.py

2. The bot will prompt you to enter your questions. Type your questions and press Enter. Type 'exit' to end the conversation.

Testing

Run the unit tests using unittest:

python -m unittest discover

Alternative Solution

This repository also includes a more complicated solution using Flask, located in the chatbot folder.