Update app.py

app.py

@@ -15,7 +15,7 @@ def set_openai_api_key(api_key: str):
     If no api_key, then None is returned.
     """
     if api_key:
-        os.environ["OPENAI_API_KEY"] = os.environ["OPENAI_API_KEY"]
+        os.environ["OPENAI_API_KEY"] = api_key
         chain = get_chain(vectorstore)
         os.environ["OPENAI_API_KEY"] = ""
         return chain
@@ -37,7 +37,7 @@ class ChatWrapper:
                 return history, history
             # Set OpenAI key
             import openai
-            openai.api_key = os.environ["OPENAI_API_KEY"]#api_key
+            openai.api_key = api_key
             # Run chain and append input.
             output = chain({"question": inp, "chat_history": history})["answer"]
             history.append((inp, output))