fix sqlite3 and chroma problem in streamlit.io

document_qa/document_qa_engine.py

@@ -1,3 +1,7 @@
+__import__('pysqlite3')
+import sys
+sys.modules['sqlite3'] = sys.modules.pop('pysqlite3')
+
 import copy
 import os
 from pathlib import Path
@@ -16,6 +20,7 @@ from langchain.vectorstores import Chroma
 from tqdm import tqdm
 
 
+
 class DocumentQAEngine:
     llm = None
     qa_chain_type = None

requirements.txt

@@ -16,6 +16,7 @@ dateparser
 
 # LLM
 chromadb==0.4.19
+pysqlite3-binary
 tiktoken==0.4.0
 openai==0.27.7
 langchain==0.0.350