Files to ignore.
A setuptools zdist command.

A normal, zip-based sdist, but then with the __main__.py from the current directory added.

The __main__.py has some sys.path manipulation prepended to it so that it can import from the packages contained in the sdist.
Example dummy-print implementation of files needed to show zdist in action.
Another shim, this time to show that we can also do:

python -m pacman

...in a checkout.
More notes.