Tool like PyInstaller but without the bundling?

I have a GUI app that I would like to distribute using PyInstaller, but it can sometimes be difficult to get PyInstaller apps to run due to complex imports and/or dlls. It would be nice if there were a backup options where we could create a launcher that just relies on a local Python installation, where we can be more confident that the dependencies are in order. Setuptools claims to support something similar, but it is based on the deprecated Easy-Install, and is not supported by pip.

This may seem like a trivial task, but here are the main three things I'd like this tool to do:

Create an OS appropriate executable launcher (Windows, Mac or Linux) in a user-specified directory
The launcher should activate the appropriate Python environment if necessary
Copy any application config files that the user might need to change to the application directory

Solution

Seems like Pyshortcuts can handle the first two requirements. Copying of config files would then need to be handled by either the application or as part of an install script.