test_launch.py

import os

# This file is made to be able to locally test Gradio app.
# In Huggingface Space, manually add the text in these files 
# to the Space's Secrets. Use same name as env vars here

token_path = './secrets/openai_token.txt'

with open(token_path, 'r') as f:
    os.environ['OPENAI_TOKEN'] = f.read()

import app # import after setting env var so app sees latest version
app.main()