Update app.py

app.py

@@ -12,7 +12,7 @@ ccms_db = SQLDatabase.from_uri(f"sqlite:///{ccms_db_loc}")
 
 gpt4 = ChatOpenAI(
     model_name='gpt-4',
-    api_key=creds["openai_api_key"],
+    api_key=os.environ["OPENAI_API_KEY"],
     temperature=0
 )