The main use case is I have a project with a setup.py that has the normal stuff in it, and there's a main entry point in one of the files. I then make a dockerf

The main use case is I have a project with a setup.py that has the normal stuff in it, and there's a main entry point in one of the files. I then make a dockerfile that installs that package in a container and runs the main file as the entry point. Ignoring things like ports, it would be nice to emit a standard dockerfile like that, since it's very common.