Update app.py

app.py

@@ -21,6 +21,7 @@ from queue import Queue, Empty
 from threading import Thread
 import gradio as gr
 
+openai.api_key = os.environ["OPENAI_API_KEY"]
 MODEL = "gpt-3.5-turbo-16k"
 
 # Defined a QueueCallback, which takes as a Queue object during initialization. Each new token is pushed to the queue.