Update app.py

app.py

@@ -42,6 +42,8 @@ class ChatWrapper:
             print("Chat with your docs!")
             while True:
                 print("Human:")
+                import openai
+                openai.api_key = api_key
                 question = input()
                 result = qa_chain({"question": question, "chat_history": chat_history})
                 chat_history.append((question, result["answer"]))