app.py

import os
import subprocess

# Set the directory path of runner.py inside the 'app' folder
app_dir = os.path.join(os.path.dirname(os.path.realpath(__file__)), 'app')
runner_path = os.path.join(app_dir, 'runner.py')

# Run runner.py using its directory path
subprocess.run(["python", runner_path], cwd=app_dir)