Update app.py

app.py

@@ -10,6 +10,7 @@ from tenacity import retry, wait_random_exponential, stop_after_attempt
 # from termcolor import colored # doesn't actually work in Colab ¯\_(ツ)_/¯
 
 GPT_MODEL = "gpt-3.5-turbo-1106"
+openai.api_key  = os.environ['OPENAI_API_KEY']
 
 def openai_api_calculate_cost(usage,model=GPT_MODEL):
     pricing = {