ctransformers==0.2.5 sentence-transformers==2.2.2 langchain pinecone-client # langchain==0.0.225 flask streamlit google-generativeai python-dotenv langchain PyPDF2 chromadb faiss-cpu langchain_google_genai langchain-community pdf2image langsmith ollama langserve fastapi uvicorn sse_starlette bs4 wikipedia arxiv langchainhub cassio beautifulsoup4 langchain-groq sentence_transformers astrapy langchain_pinecone flask huggingface_hub[cli] -e .