Update app.py

app.py

@@ -24,7 +24,7 @@ embedding = HuggingFaceHubEmbeddings()
 loader = PyPDFLoader("sample.pdf")
 pages = loader.load_and_split()
 
-text_splitter = RecursiveCharacterTextSplitter(chunk_size=500, chunk_overlap=0)
+text_splitter = RecursiveCharacterTextSplitter(chunk_size=250, chunk_overlap=0)
 docs = text_splitter.split_documents(pages)
 
 vectorstore = Chroma.from_documents(documents=docs, embedding=embedding)
@@ -43,7 +43,7 @@ chain_type_kwargs = {"prompt": PROMPT}
 
 llm = HuggingFaceHub(repo_id="mistralai/Mistral-7B-v0.1", model_kwargs={"temperature":0.1, "max_new_tokens":250})
 
-qachain=RetrievalQA.from_chain_type(llm, retriever=vectorstore.as_retriever(), memory=memory, chain_type_kwargs=chain_type_kwargs)
+qachain=RetrievalQA.from_chain_type(llm, retriever=vectorstore.as_retriever(), chain_type_kwargs=chain_type_kwargs)
 st.header("#CodeWars localGPT", divider='rainbow')
 
 option = st.selectbox('What is your role?', ('Support', 'Sales'))