a simple less 10 lines code for Chat with pdf calculate embeddings once and save at local db as using question and answser tool

# ./.env
OPENAI_API_KEY=sk-***********************************************

python -m venv ./venv
python -m pip install -U pip
pip install -r requirements.txt
python main.py --openai_api_key sk-**********

• set pdf pathname param as input
• save file of record conversation