Update app.py

app.py

@@ -15,7 +15,7 @@ llm = ChatAnthropic(model='claude-2',
                     temperature=0)
 
 # Load the persisted Chroma database
-persist_directory='/Electric_Machinerydb'
+persist_directory = os.path.expanduser('~/Electric_Machinerydb')
 embeddings = embeddings
 chroma_db = Chroma(persist_directory=persist_directory, embedding_function=embeddings)
 retriever = chroma_db.as_retriever(search_kwargs={"k": 3}, return_source_documents=True)