langchain==0.0.177 gpt4all==0.2.3 chromadb==0.3.23 llama-cpp-python==0.1.50 urllib3==2.0.2 pdfminer.six==20221105 python-dotenv==1.0.0 unstructured==0.6.6 extract-msg==0.41.1 tabulate==0.9.0 pandoc==2.3 pypandoc==1.11 tqdm==4.65.0 flask