Those certainly are some opinions.

I’ve recently looked at SQL style guides and regretfully, I hate all of them.

I don’t think it’s dirty if you manage your requirements across these environments with care, but I’d ask for what they mean

If A_WebApp is truly the python file and app is some python symbol then you should be able to make gunicorn in another venv and call your script as such: path/to/venv/bin/python gunicorn A_Web_App:app