This avoids meddling with `sys.argv` and removes reliance on careful
control over the arguments passed to the script.

This allows the "package" to be built using regular Python packaging
workflows instead of relying on `setuptools` being present in the
virtual environment.

This is no longer necessary since newer versions of pip are able to
operate in environments that do not contain setuptools.

Co-authored-by: Hugo van Kemenade <[email protected]>

Since setuptools will no longer get installed, this will no longer be
provided out-of-the-box.

… a CLI

… a CLI

This provides context, keywords and some guidance on what this change
would do.

Co-authored-by: C.A.M. Gerlach <[email protected]>

Doing anything more elaborate was flaky on certain buildbots, and
hopefully this is good enough.