app.py

import os
from subprocess import Popen

os.environ["DJANGO_SUPERUSER_PASSWORD"] = "test"
os.environ["DJANGO_SUPERUSER_USERNAME"] = "test"
os.environ["DJANGO_SUPERUSER_EMAIL"] = "[email protected]"

command = ["mercury", "createsuperuser", "--noinput"] 
worker = Popen(command) 
worker.wait()

command = ["mercury", "run", f"0.0.0.0:{os.environ.get('PORT', 7860)}", "--verbose"] 
worker = Popen(command) 
worker.wait()