Update app.py

app.py

@@ -1,4 +1,3 @@
-from PyPDF2 import PdfReader
 from langchain.embeddings.openai import OpenAIEmbeddings
 from langchain.embeddings import HuggingFaceEmbeddings
 from langchain.text_splitter import CharacterTextSplitter
@@ -23,9 +22,10 @@ pinecone.init(
 index_name="text-index"
 
 embeddings = OpenAIEmbeddings()
+llm = OpenAI(temperature=0,model_name="gpt-3.5-turbo", verbose=True)
 # 加载数据
 docsearch = Pinecone.from_existing_index(index_name, embeddings)
-chain = load_qa_chain(OpenAI(), chain_type="stuff")
+chain = load_qa_chain(llm, chain_type="stuff")
 
 def predict(message, history):
     history_langchain_format = []